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Introduction to Gas Metal Arc Welding (GMAW):
With the introduction of GTAW, it became possible to weld aluminium and stainless steels with ease and...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/what-is-gmaw-basic-of-gas-metal-arc-welding/" aria-label="View Post: What is GMAW &#8211; Basic of Gas metal arc welding">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"What is GMAW &#8211; Basic of Gas metal arc welding","url":"\/\/www.gunkrazy.com\/what-is-gmaw-basic-of-gas-metal-arc-welding\/","articleBody":"What is GMAW - Basic of Gas metal arc welding\r\nIntroduction to Gas Metal Arc Welding (GMAW):\r\nWith the introduction of GTAW, it became possible to weld aluminium and stainless steels with ease and the welds of very high quality could be obtained. However, GTAW is a slow process thus the demand for high rate production led to the development of gas metal arc welding (GMAW) in which the non-consumable tungsten electrode of GTAW is replaced by a con\u00adsumable filler wire of small diameter and composition compatible with work material.\r\n\r\nIt was also found to work more efficiently with deep which provides the desired cleaning action, due to mobile cathode spot, on the workpiece. Thus, it not only led to high deposition rate but also to desired electrode polarity.\r\n\r\nBy employing GMAW process it is possible to weld all metals for which electrode wires are available. As initially this process was used mainly for welding aluminium and stainless steels with inert gas shielding it is more popularly known as metal inert gas (MIG) welding.\r\n\r\nHowever, subsequent extension of the use of this process to other ferrous and non-ferrous metals led to the use of CO2, nitrogen as well as the mixtures of argon, helium, oxygen, hydrogen, CO2\u00a0and the like. When CO2\u00a0alone is used as the shielding gas the process is termed as CO2\u00a0welding. Still another term used to cover the use of active shielding gases is metal active gas (MAG) welding. Not withstanding these terminologies all variants of the process are well covered by the term GMAW.\r\n\r\nThe equipment used for all these processes are similar except that the shielding gas and the associated feeding arrangement may differ. For example, in CO2\u00a0welding not only the regulator and the flow-meter differ from processes with other shielding gases, it also needs a heating arrangement to avoid the blocking of gas exit at the cylinder, due to the formation of solid CO2\u00a0called the \u2018dry-ice\u2019.\r\n\r\n gmaw gas metal arc welding\r\nOperation and Technique of GMAW:\r\nOpen circuit voltage, wire feed rate, and the gas flow rate are set before using the GMAW gun to initiate welding operation. The welding current drawn by the system depends upon the interaction of different parameters which may include wire feed rate, arc voltage, and the electrode stickout. Electrode stickout being an important parameter to achieve consistent penetra\u00adtion it is essential to maintain it constant.\r\n\r\nThe gas flow rate is to be so maintained as to get defect-free welds. If the gas flow is inadequate porous bead is laid while excessive gas flow rate may cause blowing out of metal from the weld pool. The gas flow rate is associated with the nozzle-to-work distance; longer this distance more the gas flow rate required for proper protection of the molten metal. Laying of thick root run and welding in confined spaces require small sized nozzles.\r\n\r\nProper location of the work connection is essential to avoid arc blow particularly for welding ferromagnetic material like steel. It is best to weld in a direction away from the work lead connection.\r\n\r\nElectrode-to-work angle can affect the bead geometry and configura\u00adtion. It is usual to adopt backhand welding for thicker plate and forehand welding for sheets. However, as pointed out earlier, if significant change in bead dimension, say penetration, is intended then it is best to manipulate the electrical parameters rather than the electrode-to-work angle alone.\r\n\r\nThe contact tube wears out with use so must be replaced periodically to maintain good electrical contact between the electrode and the tube. A loose contact will result not only in inconsistency in the bead shape but also causes excessive heating of the lube. Depending upon the application the contact tube may be inside, flush with, or extending beyond the gas nozzle.\r\n\r\nIt is usually required to lay trial bead welds to establish proper welding parameters viz., arc voltage and the wire feed rate. Other variables like the slope of the current rise or inductance or both should be adjusted to achieve easy arc initiation and smooth arc operation with minimum spatter.\r\n\r\nThe electrode movement is perhaps the last major operator control to achieve good quality welds in GMAW. The most used method of arc move\u00adment is the drag or stringer bead pattern in which the gun is moved in a straight line without oscillation. However, in position welding drag pattern may not be found satisfactory.\r\n\r\nIn such a case the welder is required to manipu\u00adlate the gun as per his preference; the patterns often used are whip, C, U, and lazy 8. The first three are found suitable for welding out-of-position work especially to manipulate weld pool in horizontal, vertical, and overhead posi\u00adtions. A lazy 8 pattern gives a weld width 3 to 7 times the cover pass in pipe work.\r\n\r\nTo stop the work it is often necessary to withdraw the welding gun in such a way as to lengthen the arc at the end of the run so as to achieve proper crater filling.\r\nAdvantages of the GMAW Process\r\nAs mentioned above, the GMAW process is possible the most widely used process in the United States. This is due to several advantages.\u00a0 Below are listed several of these advantages:\r\n\r\n \tLow cost equipment\u00a0\u2013 a hobby welder can get a welding machine from a reputable manufacturer such as Lincoln Electric or ITW for less than $600. Add a few dollars for shielding gas and mig wire and you are welding for less than $700.\r\n \tLow cost consumables\u00a0\u2013 out of all the process the consumables for mig welding have the lowest cost. You can purchase mig wire from a big box store for less than $3 per pound. Or you can go to a local industrial distributor and get it for closer to $2 per pound.\r\n \tHigh deposition rates\u00a0\u2013 especially when compared to stick welding. With the GMAW process you can deposit up to nearly 10 pounds per hour (deposited weld metal).\r\n \tLow hydrogen deposits\u00a0\u2013 since solid does not pick up moisture like flux-cored wires and stick electrodes it consistently deposits welds with low levels of diffusible hydrogen. You can learn more about why this is important by reading \u201cWHY WELDS CRACK\u201d\r\n \tCan weld almost all\u00a0metals \u2013 by simply changing your filler wire and at times the shielding gas you can weld from carbon steel, to stainless steel, to nickel alloys and aluminum.\r\n \tLow levels of spatter\u00a0\u2013 low spatter can be achieved by selecting the right mode of metal transfer. Spray and pulse welding can provide this benefit.\r\n\r\nLimitations of the GMAW Process\r\n\r\n \tSensitive to contaminants\u00a0\u2013 the process can only handle low to moderate levels of surface contaminants such as rust, mill scale, dirt, oil and paint. All these have potential to create problems such as porosity, incomplete fusion, bad bead appearance and even cracking.\r\n \tPortability\u00a0\u2013 moving the welding equipment may not be that tough, but you also have to handle the high pressure cylinders that contain the shielding gas. Proper care must be taken.\r\n \tSensitive to wind\u00a0\u2013 the shielding gas used for mig welding can easily be blown away when welding outdoors. Even inside, a fan or a wind draft of as low as 5mph can be enough to cause porosity.\r\n \tLack of fusion\u00a0\u2013 due to the ability to weld at low currents this process has the potential for lack of fusision when running in short circuit mode. Make sure you always use the correct procedure for the thickness of material you are welding. There is a reason why the American Welding Society does not have pre-qualified procedures using the short-circuit mode of metal transfer.\r\n \tOpen arc process\u00a0\u2013 as with most welding process, GMAW exhibits an open arc. Proper care must be taking to shield the welder and bystanders from the harmful UV rays.","headline":"What is GMAW &#8211; Basic of Gas metal arc welding","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2019-02-01","mainEntityOfPage":"False","dateModified":"February 22, 2020","image":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2019\/02\/gmaw-gas-metal-arc-welding-300x300.jpg","height":300,"width":300},"publisher":{"@context":"http:\/\/schema.org\/","@type":"Organization","name":"Learn Mechanical Engineering","logo":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2020\/01\/learn-mech-logo-1-300x300.png","height":600,"width":60}}}</script> <article class="article-card horizontal "> <a href="//www.gunkrazy.com/welding-and-sheet-metal-handwritten-notes-free-download/" rel="nofollow"><div class="image-container" style="background-image: url('//www.gunkrazy.com/wp-content/uploads/2019/02/projection-welding-300x152.jpg')"></div><span class="sr-only">link to Welding and Sheet metal Handwritten Notes Free Download</span></a><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//www.gunkrazy.com/welding-and-sheet-metal-handwritten-notes-free-download/">Welding and Sheet metal Handwritten Notes Free Download</a></p></header><div class="excerpt"><p>Welding and Sheet metal Handwritten Notes Free Download
Welding Processes
There are a number of welding processes that can be employed depending on the form and thickness of the material to be...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/welding-and-sheet-metal-handwritten-notes-free-download/" aria-label="View Post: Welding and Sheet metal Handwritten Notes Free Download">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Welding and Sheet metal Handwritten Notes Free Download","url":"\/\/www.gunkrazy.com\/welding-and-sheet-metal-handwritten-notes-free-download\/","articleBody":"Welding and Sheet metal Handwritten Notes Free Download\r\nWelding Processes\r\nThere are a number of welding processes that can be employed depending on the form and thickness of the material to be joined. However, most welding falls into two categories: arc welding and torch welding. If you\u2019re interested in pursuing a welding career in arc welding, you should know that it requires a good eye for detail and steady hands. In this type of welding, the materials as well as filler material are melted together using an electrical arc. Common types of arc welding include the following:\r\n\r\n \tGas metal arc welding\r\n \tGas tungsten arc welding\r\n \tPlasma arc welding\r\n \tShielded-metal arc welding\r\n \tSubmerged arc welding\r\n\r\nTorch welding, on the other hand, is a process that melts the working material and welding rod using an open flame. The most common application for torch welding is repair and maintenance work. The big advantage to this type of welding is that it allows the user to control the torch and rod at the same time, making it easier to be more precise. The most common type of torch welding is oxyacetylene welding.\r\n\r\nOf course, there are many more welding methods than these, some of which are quite extreme. For instance, explosions, laser beams, and high-frequency vibrations can also be used to join metals together.\r\n\r\n projection welding\r\nWelding and Sheetmetal Notes Content:\r\n\r\n \tWelding\r\n \tTypes of Welding\u00a0\r\n \tInternal threading\u00a0\r\n \tExternal threading\r\n \ttypes of pattern\r\n \tSheet metal forming Process\r\n \tPunch Operation\r\n \tTube Spinning\u00a0\r\n \tPowder metallurgy\r\n \tweld Defects\r\n \tSources Of Weld Defects\r\n \tProduction of metal Powder\u00a0\r\n \tCupola Furnace\r\n \tForming Process\r\n\r\nDownload Notes :\r\n\r\nWelding and Sheet metal Notes pdf Download\u00a0\r\n\r\nFile size: 10 mb\r\n\r\nClick here to Download\u00a0","headline":"Welding and Sheet metal Handwritten Notes Free Download","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2019-02-01","mainEntityOfPage":"False","dateModified":"February 22, 2020","image":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2019\/02\/projection-welding-300x152.jpg","height":152,"width":300},"publisher":{"@context":"http:\/\/schema.org\/","@type":"Organization","name":"Learn Mechanical Engineering","logo":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2020\/01\/learn-mech-logo-1-300x300.png","height":600,"width":60}}}</script> <article class="article-card horizontal "> <a href="//www.gunkrazy.com/fabrication-of-fire-safety-sprinkler-system-in-cars-mechanical-projects/" rel="nofollow"><div class="image-container" style="background-image: url('//www.gunkrazy.com/wp-content/uploads/2019/02/Fire-Safety-Sprinkler-System-in-Cars-300x158.jpg')"></div><span class="sr-only">link to Fabrication of Fire Safety Sprinkler System in Cars -Mechanical projects</span></a><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//www.gunkrazy.com/fabrication-of-fire-safety-sprinkler-system-in-cars-mechanical-projects/">Fabrication of Fire Safety Sprinkler System in Cars -Mechanical projects</a></p></header><div class="excerpt"><p>Fabrication of Fire Safety Sprinkler System in Cars -Mechanical projects
Abstract
In this these we are discussed about to avoid fire accident in cars, so we are planned to place the fire sprinkler...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/fabrication-of-fire-safety-sprinkler-system-in-cars-mechanical-projects/" aria-label="View Post: Fabrication of Fire Safety Sprinkler System in Cars -Mechanical projects">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Fabrication of Fire Safety Sprinkler System in Cars -Mechanical projects","url":"\/\/www.gunkrazy.com\/fabrication-of-fire-safety-sprinkler-system-in-cars-mechanical-projects\/","articleBody":"Fabrication of Fire Safety Sprinkler System in Cars -Mechanical projects\r\nAbstract\r\nIn this these we are discussed about to avoid fire accident in cars, so we are planned to place the fire sprinkler in the car. At the same time, for this process water is most important for the resistance from fire. So we are planning to implement small water tank over the car.\r\n\r\nA fire sprinkler or sprinkler head is the component of a fire sprinkler system that discharges water when the effects of a fire have been detected, such as when a predetermined temperature has been exceeded. Fire sprinklers are extensively used worldwide, with over 40 million sprinkler heads fitted each year. In buildings protected by properly designed, and maintained fire sprinklers, over 99% of fires were controlled by fire sprinklers alone.\r\n\r\nSee also :\r\n\r\n \t\u00a0Project On Fully Automated Fire Fighting Robot\r\n \tSeminar and Project On Fire fighting robot\r\n\r\nINTRODUCTION:\r\nThere are a high number of car parks being utilized and the fire load is immense. Highly flammable materials, such as plastic, rubber, textiles, have been used in the vehicles\u2019 production - all of which have a high potential for fire development and smoke production. In addition, passenger vehicle tanks are filled with combustible fuel. Fire quickly develops through negligence (discarded lit cigarettes or carelessly placed highly flammable materials coming into contact with the hot motor components of the parked passenger vehicles) or through a technical defect (faulty power cable, leaky petrol lines or tanks, new electric power systems with increased danger of short circuiting due to high capacity batteries). If a fire is generated under these conditions, it will in certain circumstances quickly spread and ignite neighboring vehicles.\r\n\r\nThe hot, dense smoke rapidly blanketing the entire building complex makes firefighting more difficult and the emergency exits less visible. It is not uncommon for a \u201cflashover\u201d to occur in a fire in car parks. The fire then suddenly develops from its formation phase to the full-blown fire phase; it burns throughout the building, instantaneously covering a large area, room temperatures reach many hundreds of degrees Centigrade.\r\n\r\nFire safety is one of the key issues when designing buildings. Car parks, open or enclosed, are typical in modern urban environment. Car fires have been studied since numerous years. The study of the heat release rate (HRR) of cars has begun only with car tests of VTT in Finland 1991 [Mangs &amp; Loikkanen, 1991]. After that many researches have been completed and a wide summary of car fires is in [BRE, 2009]. Wide literature and interesting statistical data from New Zealand is given in [Li, 2004]. Not only cars, but also parts of cars, such as tires [Gratkowski, 2012] and engine compartments [Weisenpacher et al, 2010] have been studied. Proper heat release rate with respect to time from ignition is the main property when modeling fires, generally.\r\n\r\nFire Safety Sprinkler System in Cars\r\nWORKING PRINCIPLE:\r\nIn this model we are designed one water tank in the top of the car body, which is normally used to store the water. There we are implement the sprinkler it is normally as a product available in markets. When the heat or the temperature is normally increase in the car, or otherwise, if it any fire accident occur inside of the car means, it send the signal and the sprinkler open and the stored water will spray inside the car.","headline":"Fabrication of Fire Safety Sprinkler System in Cars -Mechanical projects","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2019-02-01","mainEntityOfPage":"False","dateModified":"February 22, 2020","image":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2019\/02\/Fire-Safety-Sprinkler-System-in-Cars-300x158.jpg","height":158,"width":300},"publisher":{"@context":"http:\/\/schema.org\/","@type":"Organization","name":"Learn Mechanical Engineering","logo":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2020\/01\/learn-mech-logo-1-300x300.png","height":600,"width":60}}}</script> <article class="article-card horizontal "> <a href="//www.gunkrazy.com/design-and-fabrication-of-robotic-elevator-mechanical-projects/" rel="nofollow"><div class="image-container" style="background-image: url('//www.gunkrazy.com/wp-content/uploads/2019/01/Robotic-Elevator-300x148.jpg')"></div><span class="sr-only">link to Design and Fabrication of Robotic Elevator &#8211; Mechanical Projects</span></a><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//www.gunkrazy.com/design-and-fabrication-of-robotic-elevator-mechanical-projects/">Design and Fabrication of Robotic Elevator &#8211; Mechanical Projects</a></p></header><div class="excerpt"><p>Design and Fabrication of Robotic Elevator - Mechanical Projects
Abstract
Although robot navigation in indoor environments has achieved great success, robots are unable to fully navigate these...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/design-and-fabrication-of-robotic-elevator-mechanical-projects/" aria-label="View Post: Design and Fabrication of Robotic Elevator &#8211; Mechanical Projects">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Design and Fabrication of Robotic Elevator &#8211; Mechanical Projects","url":"\/\/www.gunkrazy.com\/design-and-fabrication-of-robotic-elevator-mechanical-projects\/","articleBody":"Design and Fabrication of Robotic Elevator - Mechanical Projects\r\nAbstract\r\nAlthough robot navigation in indoor environments has achieved great success, robots are unable to fully navigate these spaces without the ability to operate elevators, including those which the robot has not seen before. In this paper, we focus on the key challenge of autonomous interaction with an unknown elevator button panel. A number of factors, such as lack of useful 3D features, variety of elevator panel designs, variation in lighting conditions, and small size of elevator buttons, render this goal quite difficult.\r\n\r\nTo address the task of detecting, localizing, and labelling the buttons, we use state-of-the-art vision algorithms along with machine learning techniques to take advantage of contextual features. To verify our approach, we collected a dataset of 150 pictures of elevator panels from more than 60 distinct elevators, and performed extensive offline testing. On this very diverse dataset, our algorithm succeeded in correctly localizing and labelling 86.2% of the buttons.\r\n\r\nUsing a mobile robot platform, we then validate our algorithms in experiments where, using only its on-board sensors, the robot autonomously interprets the panel and presses the appropriate button in elevators never seen before by the robot\r\nINTRODUCTION:\r\nRobots have been able to autonomously navigate unknown building floors for some time; however, their mobility in these general environments is restricted if they are not capable of autonomously operating elevators. Current robot systems (used in environments such as hospitals and labs) either rely on human assistance or use infrared transmitters to interact with an elevator.\r\n\r\nRelying on human assistance can be inefficient and one can imagine a situation where it might be impossible, e.g. a robot janitor cleaning a building after working hours. Retrofitting all elevators with infrared detectors could be costly and time-consuming and may not be possible if robots must be able to navigate in a large number of different buildings. In this paper, we consider the challenge of enabling a mobile robot to autonomously operate elevators (with no human intervention), including those never before seen by the robot.\r\n\r\nWe focus on developing algorithms to enable a robot to identify and accurately localize buttons and recognize their labels, and execute the action of pressing the button corresponding to the desired floor. Interior button panels since call buttons usually consist of only up\/down buttons and represent a constrained special case of general elevator panels.\r\n\r\nWORKING PRINCIPLE:\r\nGenerally, elevator is used to lift the heavy materials. This is the era of robotics so we implement our new project model automatically operated robotic elevator. Normally we all heard about four axes and six axis robot which is handling equipment\u2019s in different axis.\r\n\r\nRobotic elevator consists of two D.C motors, one is for drive the wheel in fro and back direction and another is to lift the arm of the robot. Here we use toggle switch for control the movement of the motors.\r\n\r\nRack and Pinion mechanism setup in front wheel is used to lift the materials. We know rack and pinion setup is used to convert linear motion to vertical and vice-versa. We use D.C battery to provide current to the motors. In robotic arm we fix the D.C motor of 100 rpm for opening and closing of robot arm.\r\n\r\nPROJECT IMAGE:\r\n\r\nRobotic Elevator\r\n\r\nADVANTAGES:\r\n\u2022 It is automatic.\r\n\r\n\u2022 Easily operated and controlled by low skilled persons.\r\n\r\n\u2022 It is reliable.\r\n\r\n\u2022 Low cost compared to other elevators.\r\n\r\n\u2022 It is movable and can travel in unsafe places.\r\n\r\nAPPLICATIONS:\r\n\u2022 Used in hospitals and labs.\r\n\r\n\u2022 Used for tracking sources.\r\n\r\n\u2022 Used for material handling in companies.","headline":"Design and Fabrication of Robotic Elevator &#8211; Mechanical Projects","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2019-02-01","mainEntityOfPage":"False","dateModified":"February 22, 2020","image":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2019\/01\/Robotic-Elevator-300x148.jpg","height":148,"width":300},"publisher":{"@context":"http:\/\/schema.org\/","@type":"Organization","name":"Learn Mechanical Engineering","logo":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2020\/01\/learn-mech-logo-1-300x300.png","height":600,"width":60}}}</script> <article class="article-card horizontal "> <a href="//www.gunkrazy.com/pneumatic-six-axis-material-handling-robot-mechanical-project/" rel="nofollow"><div class="image-container" style="background-image: url('//www.gunkrazy.com/wp-content/uploads/2019/01/pneumatic-based-six-axis-material-handling-system-297x300.jpg')"></div><span class="sr-only">link to Pneumatic six axis material handling robot &#8211; Mechanical Project</span></a><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//www.gunkrazy.com/pneumatic-six-axis-material-handling-robot-mechanical-project/">Pneumatic six axis material handling robot &#8211; Mechanical Project</a></p></header><div class="excerpt"><p>Pneumatic six axis material handling robot - Mechanical Project  Pneumatic Six Axis Material Handling Equipment  The current material handling processes includes complicated designs and the...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/pneumatic-six-axis-material-handling-robot-mechanical-project/" aria-label="View Post: Pneumatic six axis material handling robot &#8211; Mechanical Project">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Pneumatic six axis material handling robot &#8211; Mechanical Project","url":"\/\/www.gunkrazy.com\/pneumatic-six-axis-material-handling-robot-mechanical-project\/","articleBody":"Pneumatic six axis material handling robot - Mechanical Project\r\n\r\nPneumatic Six Axis Material Handling Equipment\r\n\r\n\r\n\r\nThe current material handling processes includes complicated designs and the cost of the system is also high. Hence every industry is in need of a suitable material handling equipment which must be of low cost and also it must be flexible enough for the users.\r\n\r\nThis Pneumatic Six Axis Material Handling Equipment project serves as best for satisfying the above conditions. We used pneumatic application for the automation and it can be moved in six axis such that the entire material handling process can be automated.\r\n\r\nWorking Principle:\u00a0\r\n\r\nOur Pneumatic Six Axis Material Handling Equipment project consists of six pneumatic cylinders which are actuated with the help of the compressed air from the compressor. One pneumatic cylinder is attached at the bottom of the setup which is coupled with the rack and pinion arrangement and this cylinder is used to rotate the setup in 360\u00b0.\r\n\r\nAnother cylinder is placed vertically which is used to actuate the arm of the machine. The third cylinder is provided just above the vertical cylinder for achieving the raising and lowering action of the arm. The fourth cylinder is used to extend and retard the arm.\r\n\r\nThe fifth cylinder is used to raise and lower the gripper assembly. The last cylinder is used to actuate the gripper setup which is usually used to hold the work materials. Corresponding pneumatic cylinders are actuated with the help of the compressed air from the separate compressors and the material from one place in transferred to the other place with the help of this six axis material handling equipment.\r\n\r\nThis machine is highly useful since it can be moved in 360\u00b0.\r\n\r\nAPPLICATIONS\r\n\r\nDischarge of work piece\r\nThe arm feed has a wide application in low cost automation industries. It can be used in automated assembly lines to pick up the finished product from workstation and place them in bins. It can also be used to pick raw material and place them on the conveyor belts.\r\n\r\nWork clamping\r\nThis unit can also be used in clamping. Operation in certain areas of mass production where clamping and an clamping have to be done at high speeds. The application of these units is limited to operations which involved moderate clamping forces.\r\n\r\nTool Changing Application\r\nWhen the pneumatic arms are made smaller in size they can be used in automatic tool changes in CNC turning and drilling machines, by attaching tool holding device to the rotary cylinder\r\n\r\n pneumatic based six axis material handling system\r\n\r\nADVANTAGES\r\n\r\n \tThe pneumatic arm is more efficient in the technical field\r\n \tQuick response is achieved\r\n \tSimple in construction\r\n \tEasy to maintain and repair\r\n \tCost of the unit is less when compared to other robotics\r\n \tNo fire hazard problem due to over loading\r\n \tComparatively the operation cost is less\r\n \tThe operation of arm is faster because the medium used to operate is air\r\n \tContinuous operation is possible without stopping\r\n\r\nLIMITATIONS\r\n\r\n \t\u00a0While working, the compressed air produces noise therefore a silencer may be used.\r\n \tHigh torque can not be obtained\r\n \tLoad carrying capacity of this unit is not very high. (&lt;50 N)","headline":"Pneumatic six axis material handling robot &#8211; Mechanical Project","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2019-01-31","mainEntityOfPage":"False","dateModified":"February 22, 2020","image":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2019\/01\/pneumatic-based-six-axis-material-handling-system-297x300.jpg","height":300,"width":297},"publisher":{"@context":"http:\/\/schema.org\/","@type":"Organization","name":"Learn Mechanical Engineering","logo":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2020\/01\/learn-mech-logo-1-300x300.png","height":600,"width":60}}}</script> <article class="article-card horizontal "> <a href="//www.gunkrazy.com/what-is-phase-change-material-pcm-application-of-pcm/" rel="nofollow"><div class="image-container" style="background-image: url('//www.gunkrazy.com/wp-content/uploads/2019/01/PCM-BASED-SOLAR-ENERGY-TANK-300x215.jpg')"></div><span class="sr-only">link to What is Phase change Material ( PCM )- Application of PCM</span></a><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//www.gunkrazy.com/what-is-phase-change-material-pcm-application-of-pcm/">What is Phase change Material ( PCM )- Application of PCM</a></p></header><div class="excerpt"><p>What is Phase change Material ( PCM )- Application of PCM
What is Phase change Material ( PCM )  A phase change material (PCM) is a substance with a high heat of fusion which, melting and...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/what-is-phase-change-material-pcm-application-of-pcm/" aria-label="View Post: What is Phase change Material ( PCM )- Application of PCM">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"What is Phase change Material ( PCM )- Application of PCM","url":"\/\/www.gunkrazy.com\/what-is-phase-change-material-pcm-application-of-pcm\/","articleBody":"What is Phase change Material ( PCM )- Application of PCM\r\nWhat is Phase change Material ( PCM )\r\n\r\nA phase change material (PCM) is a substance with a high heat of fusion which, melting and solidifying at a certain temperature, is capable of storing and releasing large amounts of energy. Heat is absorbed or released when the material changes from solid to liquid and vice versa; thus, PCMs are classified as latent heat storage (LHS) units.\r\n\r\nLatent heat storage can be achieved through liquid\u2192solid, solid\u2192liquid, solid\u2192gas and liquid\u2192gas phase changes. However, only solid\u2192liquid and liquid\u2192solid phase changes are practical for PCMs. Although liquid\u2013gas transitions have a higher heat of transformation than solid\u2013liquid transitions, liquid\u2192gas phase changes are impractical for thermal storage because large volumes or high pressures are required to store the materials in their gas phase. Solid\u2013solid phase changes are typically very slow and have a relatively low heat of transformation.\r\n\r\nInitially, solid\u2013liquid PCMs behave like sensible heat storage (SHS) materials; their temperature rises as they absorb heat. Unlike conventional SHS materials, however, when PCMs reach the temperature at which they change phase (their melting temperature) they absorb large amounts of heat at an almost constant temperature. The PCM continues to absorb heat without a significant rise in temperature until all the material is transformed to the liquid phase. When the ambient temperature around a liquid material falls, the PCM solidifies, releasing its stored latent heat. A large number of PCMs are available in any required temperature range from \u22125 up to 190 \u00b0C. Within the human comfort range between 20\u201330 \u00b0C, some PCMs are very effective. They store 5 to 14 times more heat per unit volume than conventional storage materials such as water, masonry or rock.\r\n\r\n PCM BASED SOLAR ENERGY TANK\r\nPCM MATERIAL EXAMPLES :\r\n\r\n \tWater\r\n \tSodium sulfate\r\n \tAluminium\r\n \tTitanium\r\n \tNaNO3\r\n \tNaOH\r\n \tGlycerin\r\n \tO-Nitroaniline\r\n \tHypophosphoric acid\r\n\r\nThe most commonly used PCMs are salt hydrates, fatty acids and esters, and various paraffins (such as octadecane). Recently also ionic liquids were investigated as novel PCMs.\r\n\r\nAs most of the organic solutions are water-free, they can be exposed to air, but all salt based PCM solutions must be encapsulated to prevent water evaporation or uptake. Both types offer certain advantages and disadvantages and if they are correctly applied some of the disadvantages becomes an advantage for certain applications.\r\n\r\nPCM Applications\u00a0\r\n\r\n \tThermal energy storage\r\n \tSolar cooking\r\n \tCold Energy Battery\r\n \tConditioning of buildings, such as 'ice-storage'\r\n \tCooling of heat and electrical engines\r\n \tCooling: food, beverages, coffee, wine, milk products, green houses\r\n \tMedical applications: transportation of blood, operating tables, hot-cold therapies, treatment of birth asphyxia\r\n \tHuman body cooling under bulky clothing or costumes.\r\n \tWaste heat recovery\r\n \tOff-peak power utilization: Heating hot water and Cooling\r\n \tHeat pump systems\r\n \tPassive storage in bioclimatic building\/architecture (HDPE, paraffin)\r\n \tSmoothing exothermic temperature peaks in chemical reactions\r\n \tSolar power plants\r\n \tSpacecraft thermal systems\r\n \tThermal comfort in vehicles\r\n \tThermal protection of electronic devices\r\n \tThermal protection of food: transport, hotel trade, ice-cream, etc.\r\n \tTextiles used in clothing\r\n \tComputer cooling\r\n \tTurbine Inlet Chilling with thermal energy storage","headline":"What is Phase change Material ( PCM )- Application of PCM","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2019-01-31","mainEntityOfPage":"False","dateModified":"February 22, 2020","image":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2019\/01\/PCM-BASED-SOLAR-ENERGY-TANK-300x215.jpg","height":215,"width":300},"publisher":{"@context":"http:\/\/schema.org\/","@type":"Organization","name":"Learn Mechanical Engineering","logo":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2020\/01\/learn-mech-logo-1-300x300.png","height":600,"width":60}}}</script> <nav class="pagination-wrapper" aria-label="article pagination"> <a class="prev page-numbers" href="?page_num=135">&laquo; PREV</a> <a class="page-numbers" href="?page_num=1"><span class="screen-reader-text">Page </span>1</a> <span class="page-numbers dots">&hellip;</span> <a class="page-numbers" href="?page_num=134"><span class="screen-reader-text">Page </span>134</a> <a class="page-numbers" href="?page_num=135"><span class="screen-reader-text">Page </span>135</a> <span aria-current="page" class="page-numbers current"><span class="screen-reader-text">Page </span>136</span> <a class="page-numbers" href="?page_num=137"><span class="screen-reader-text">Page </span>137</a> <a class="page-numbers" href="?page_num=138"><span class="screen-reader-text">Page </span>138</a> <span class="page-numbers dots">&hellip;</span> <a class="page-numbers" href="?page_num=338"><span class="screen-reader-text">Page </span>338</a> <a class="next page-numbers" href="?page_num=137">NEXT &raquo;</a></nav></section></main><aside id="secondary" class="widget-area"><div class="about-wrapper"><h2 class="widget-title" style="background: #d693c6; color: #ff392e">About Us</h2><div class="about-image" style="background-image: url('//www.gunkrazy.com/wp-content/uploads/2020/03/Sachin-Thorat-300x300-min.png')"></div><p class="about-copy">LearnMech.Com is a Mechanical Project-oriented platform run by Sachin Thorat who is a B-Tech Graduate in Mechanical Engineering. 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