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class="excerpt"><p>What is Fitting Shop | Fitting Tools used in Fitting Shop
Introduction to Fitting Shop :
Fitting is the assembling together of parts and removing metals to secure the necessary fit is called...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/what-is-fitting-shop-fitting-tools-used-in-fitting-shop/" aria-label="View Post: What is Fitting Shop | Fitting Tools used in Fitting Shop">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"What is Fitting Shop | Fitting Tools used in Fitting Shop","url":"\/\/www.gunkrazy.com\/what-is-fitting-shop-fitting-tools-used-in-fitting-shop\/","articleBody":"What is Fitting Shop | Fitting Tools used in Fitting Shop\r\nIntroduction to Fitting Shop :\r\nFitting is the assembling together of parts and removing metals to secure the necessary fit is called fitting. An operator who does the fitting job is called fitter. Fitting involves certain amount of bench work using hand tools or power operated tools. The various operations involved in fitting are filing, marking, sawing, chipping, drilling, reaming, tapping, etc.\r\n\r\nFitting Tools:\r\n1. Bench Vice\r\n2. Flat file\r\n3. Triangular file\r\n4. Try square\r\n5. Surface plate\r\n6. Vernier Height gauge\r\n\r\nfitting tools\r\n\r\n1. Bench Vice\r\nA vise or vice is a mechanical screw apparatus used for holding or clamping a work piece to allow work to be performed on it with tools such as saws, planes, drills, mills, screwdrivers, sandpaper, etc. Vises usually have one fixed jaw and another, parallel, jaw which is moved towards or away from the fixed jaw by the screw.\r\n\r\n2. Flat File:\r\nIt is highly useful when fast cutting is required.\r\n\r\n3. Triangular File:\r\nIt is used for rectangular cuts and filing corner less than 90 degree.\r\n\r\n4. Try Square:\r\nIt is used to check the flatness and squareness of the work piece.\r\n\r\n5. Surface Plate:\r\nIt is used for testing the flatness of the job and also used for carrying the work piece while marking.\r\n\r\n6. Vernier Height:\r\nIt is used for taking accurate measurement of height of a job or for marking.","headline":"What is Fitting Shop | Fitting Tools used in Fitting Shop","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2019-03-10","mainEntityOfPage":"False","dateModified":"February 22, 2020","image":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2019\/03\/fitting-tools-290x300.jpg","height":300,"width":290},"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/moulding-tools-components-required-for-moulding/" rel="nofollow"><div class="image-container" style="background-image: url('//www.gunkrazy.com/wp-content/uploads/2019/03/moulding-tools-300x200.jpg')"></div><span class="sr-only">link to Moulding Tools | Components Required for Moulding</span></a><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//www.gunkrazy.com/moulding-tools-components-required-for-moulding/">Moulding Tools | Components Required for Moulding</a></p></header><div class="excerpt"><p>Moulding Tools | Components Required for Moulding
Casting
Casting is a manufacturing process by which a liquid material is usually poured into a mold, which contains a hollow cavity of the desired...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/moulding-tools-components-required-for-moulding/" aria-label="View Post: Moulding Tools | Components Required for Moulding">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Moulding Tools | Components Required for Moulding","url":"\/\/www.gunkrazy.com\/moulding-tools-components-required-for-moulding\/","articleBody":"Moulding Tools | Components Required for Moulding\r\nCasting\r\nCasting is a manufacturing process by which a liquid material is usually poured into a mold, which contains a hollow cavity of the desired shape, and then allowed to solidify. The solidified part is also known as a casting, which is ejected or broken out of the mold to complete the process. Casting materials are usually metals or various cold setting materials that cure after mixing two or more components together; examples are epoxy, concrete, plaster and clay. Casting is most often used for making complex shapes that would be otherwise difficult or uneconomical to make by other methods.\r\n\r\nread more :\r\n\r\nTypes of Moulding Machines | Squeezers , Jolt Machines , Sand Slingers\r\n\r\nTypes of Moulding Sand | Properties of Moulding Sand\r\n\r\nComponents Required for Moulding:\r\n1. Moulding Sand (Green Sand)\r\n2. Moulding Boxes\r\n3. Pattern\r\n4. Moulding Tools\r\n\r\n moulding tools\r\n\r\n1. Moulding Sand:\r\nGreen sand is an aggregate of sand, bentonite clay, pulverized coal and water. Its principal use is in making molds for metal casting. The largest portion of the aggregate is always sand, which can be either silica or olivine.\r\nGreen sand (and other casting sands) is usually housed in what casters refer to as flasks which are nothing other than boxes without a bottom or lid. The box is split into two halves which are stacked together in use. The halves are referred to as the top (cope) and bottom (drag) flask respectively. Green sand is not green in color, but \"green\" in the sense that it is used in a wet state (akin to green wood).\r\n\r\n2. Moulding Box:\r\nIt is also called moulding flask. It is frame or box of wood or metal. Wood is cheaper and boxes can be made quickly. Wood wears out quickly. It is destroyed by contact with hot metal. A metal box is steel, cast iron and aluminum alloys are used in mass production. Moulding boxes are used for making sand moulds.\r\n\r\n3. Pattern:\r\nIn casting, a pattern is a replica of the object to be cast, used to prepare the cavity into which molten material will be poured during the casting process. Patterns used in sand casting may be made of wood, metal, plastics or other materials The making of patterns, called pattern making (sometimes styled pattern-making or pattern making), is a skilled trade that is related to the trades of tool and die making and mold making, but also often incorporates elements of fine woodworking.\r\n\r\n4. Moulding Tools:\r\n\r\na) Shovel:\r\nIt is one of the foundry tools which have a broad metal blade with a long wooden handle. It is used to carry moulding sand from the sand pit to the moulding box and is also used for mixing and tempering (adding sufficient water) the sand.\r\n\r\nb) Riddle:\r\nIt is a metal sieve used for removing foreign materials such as stones, nails etc., from the moulding sand.\r\n\r\nc) Rammer:\r\nIt is used for packing or ramming the moulding sand in the moulding box.\r\n\r\nd) Trowels:\r\nIt is used for smoothening the surfaces of mould and also to repair the damaged portion of mould.\r\n\r\ne) Slick:\r\nIt is used for repairing and finishing surfaces and to round corners of the mould.\r\n\r\nf) Lifter:\r\nIt is used to remove the loose sand from the mould. It is also used to finish the bottom and sides of the mould.\r\n\r\ng) Strike off bar:\r\nIt is used to remove excessive sand from the mould after tempering.\r\n\r\nh) Sprue pin:\r\nIt is used to make sprue hole to pour the molten metal in the mould.\r\n\r\ni) Vent rod:\r\nIt is used for making vent holes in the sand mould so that the molten gases released during casting process, can easily escape from mould.\r\n\r\nj) Bellows:\r\nIt is used to blow off loose sand particles from the mould and pattern.\r\n\r\nk) Gate cutter:\u00a0\r\nIt is used for cutting gates and runners in the mould.","headline":"Moulding Tools | Components Required for Moulding","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2019-03-10","mainEntityOfPage":"False","dateModified":"February 22, 2020","image":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2019\/03\/moulding-tools-300x200.jpg","height":200,"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/split-type-air-conditioner-diagram-working-parts/" rel="nofollow"><div class="image-container" style="background-image: url('//www.gunkrazy.com/wp-content/uploads/2019/03/split-air-conditioner-290x300.jpg')"></div><span class="sr-only">link to Split type air conditioner | Diagram , Working , Parts</span></a><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//www.gunkrazy.com/split-type-air-conditioner-diagram-working-parts/">Split type air conditioner | Diagram , Working , Parts</a></p></header><div class="excerpt"><p>Split type air conditioner | Diagram , Working , Parts
Introduction to Air Conditioning :
Air conditioner is a device used to condition the air according to human comfort. Air is consisting of...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/split-type-air-conditioner-diagram-working-parts/" aria-label="View Post: Split type air conditioner | Diagram , Working , Parts">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Split type air conditioner | Diagram , Working , Parts","url":"\/\/www.gunkrazy.com\/split-type-air-conditioner-diagram-working-parts\/","articleBody":"Split type air conditioner | Diagram , Working , Parts\r\nIntroduction to Air Conditioning :\r\nAir conditioner is a device used to condition the air according to human comfort. Air is consisting of humidity, temperature, dust etc. The presence of these constituents makes the people to feel discomfort and reduces the efficiency of persons. Therefore air has to be conditioner depending upon the requirement. Generally in coastal areas the humidity level is more hence wet air prevails, so air has to be dehumidified using air conditioner. In the tropical areas dry air prevails hence air has to be humidified using air conditioner. Thus air conditioner may be classified according to season as Summer\r\n\r\nAir Conditioner &amp; Winter Air Conditioner.\r\n\r\nTypes of Air Conditioner:\r\n1. Window Air Conditioner\r\n2. Spilt type Air Conditioner\r\n\r\nRead more :\u00a0Windows air Conditioning | Working , Components and Application\r\n\r\nSPLIT TYPE AIR CONDITIONER:\r\nIntroduction:\r\nSplit air conditioners are used for rooms and halls, usually in places where window air conditioners cannot be installed. However, these days many people prefer split air conditioner units even for places where window air conditioners can be fitted.\r\n\r\nThe split type room air conditioner is comprised of two parts.\r\n\r\n1) The outdoor unit,\r\nThe outdoor unit, fitted outside the room, houses components like the compressor, condenser and expansion valve.\r\n\r\n2) The indoor unit.\r\nThe indoor unit comprises the evaporator or cooling coil and the cooling fan. The split air conditioner can be used to cool one or two rooms.\r\n\r\nOUTDOOR UNIT :\r\nThis unit houses important components of the air conditioner like the compressor, condenser coil and also the expansion coil or capillary tubing. This unit is installed outside the room or office space which is to be cooled.\r\n\r\nIt consists of the following parts :\r\na) Compressor is the main component of the system and is used to compress the refrigerant.\r\nb) Condenser Coil is used to reject heat from the refrigerant to the out side air.\r\nc) Condenser Fan is used in air-cooled condenser to help move the air molecules over the surface of the condensing coil, hence rejecting the heat form the indoor to the space outside the building.\r\nd) Condenser Motor is located here. The motor usually has two to three speeds. Smaller unit may have only one speed of control and turns on\/off simultaneously with the compressor.\r\n\r\nsplit air conditioner\r\n\r\nINDOOR UNIT :\r\nThe indoor unit houses the evaporator coil or the cooling coil, a long blower and the filer. After passing from the expansion coil, the chilled Freon fluid enters the cooling coil. The blower sucks the hot, humid and filtered air from the room and it blows over the cooling coil. As the air passes over cooling coiling its temperature reduces drastically and also loses the excess moisture comfortable conditions of around 25 \u00b0 to 27 \u00b0 C as per the standard requirements. It can be mounted on the ceiling, wall or simply as a console unit on the floor. \r\n\r\nIt consists of the following parts :\r\na) Evaporator coil is where the heat exchange is done with the room. It consists of fins and tubes.\r\n\r\nb) Control Panel is where user control the functions of the air conditioner. Displays at the panel may indicate the mode of operation, timer, on\/off status, fan speed and other special functions. Most newer units have remote control feature built into the system\r\n\r\nc) Air Filter is located in front of the evaporator coil to trap any dust or particles before going into the evaporator. This is usually washable and re-useable. Users are advised to clean it at least once in three months or more regularly if the environment is dirty.\r\n\r\nd) Supply and Return Air Grills are where the air enters and discharge from the indoor unit.\r\n\r\ne) Fan blower together with its motor are used to control the fan speed of the unit. High, medium. Low and Ultra low speeds are usually designed for users to select.\r\n\r\nf) Capillary tube is used as an expansion device where the flow of the refrigerant depends on the tube internal diameter, shape and its length. The tube is usually used in smaller units. Larger units use thermostatic expansion valve which has a controlling valve to regulate the flow of refrigerant with greater precision.\r\n\r\nWORKING :\r\n\r\n \tA copper connection pipe and electrical wiring connects the indoor unit to the outdoor unit of the split air conditioning.\r\n \tGas refrigerant is pumped from the outdoor condenser coil and compressor through the connection pipe to the indoor unit(s).\r\n \tA fan then quietly distributes cool air drawn across the unit\u2019s evaporator coil.","headline":"Split type air conditioner | Diagram , Working , Parts","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2019-03-10","mainEntityOfPage":"False","dateModified":"February 22, 2020","image":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2019\/03\/split-air-conditioner-290x300.jpg","height":300,"width":290},"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 no-thumb"><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//www.gunkrazy.com/windows-air-conditioning-working-components-and-application/">Windows air Conditioning | Working , Components and Application</a></p></header><div class="excerpt"><p>Windows air Conditioning | Working , Components and Application
Introduction to Air Conditioning :
Air conditioner is a device used to condition the air according to human comfort. Air is...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/windows-air-conditioning-working-components-and-application/" aria-label="View Post: Windows air Conditioning | Working , Components and Application">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Windows air Conditioning | Working , Components and Application","url":"\/\/www.gunkrazy.com\/windows-air-conditioning-working-components-and-application\/","articleBody":"Windows air Conditioning | Working , Components and Application\r\nIntroduction to Air Conditioning :\r\nAir conditioner is a device used to condition the air according to human comfort. Air is consisting of humidity, temperature, dust etc. The presence of these constituents makes the people to feel discomfort and reduces the efficiency of persons. Therefore air has to be conditioner depending upon the requirement. Generally in coastal areas the humidity level is more hence wet air prevails, so air has to be dehumidified using air conditioner. In the tropical areas dry air prevails hence air has to be humidified using air conditioner. Thus air conditioner may be classified according to season as Summer.\r\n\r\nRead More ;\r\n\r\nWindow Air Conditioner - Working and Installation\r\n\r\nhow does a central air conditioning system work\r\n\r\nAir Conditioner &amp; Winter Air Conditioner.\r\n\r\nTypes of Air Conditioner:\r\n1. Window Air Conditioner\r\n2. Spilt type Air Conditioner\r\n\r\nWINDOW AIR CONDITIONER:\r\n\r\nWorking Principle:\r\nThe refrigerant vapour at high pressure and temperature is supplied by the compressor to the condenser. A propeller type fan is used to draw air from atmosphere and to circulate through the condenser coil. The air cools the refrigerant vapour and it becomes liquid. \r\n\r\nRefrigeration cycle\r\nThe refrigeration cycle consists of the following processes .\r\n1) Condensing coil 2) Expansion valve, 3) Evaporator coil, 4) Compressor.\r\nInitially, a heat pump transfers heat from a lower-temperature heat source into a higher temperature heat sink. Heat would naturally flow in the opposite direction. This is the most common type of air conditioning. A refrigerator works in much the same way, as it pumps the heat out of the interior and into the room in which it stands.\r\nThe most common refrigeration cycle uses an electric motor to drive a compressor. Since evaporation occurs when heat is absorbed, and condensation occurs when heat is released, air conditioners use a compressor to cause pressure changes between two compartments, and actively condense and pump a refrigerant around. A refrigerant is pumped into the cooled compartment (the evaporator coil), where the low pressure causes the refrigerant to evaporate into a vapor, taking heat with it. In the other compartment (the condenser), the refrigerant vapor is compressed and forced through another heat exchange coil, condensing into a liquid, rejecting the heat previously absorbed from the cooled space. Air conditioning equipment usually reduces the humidity of the air processed by the system and hence produces the effect.\r\n\r\nwindows air conditioning system\r\n\r\nCOMPONENTS:\r\n\r\nThe refrigeration systems consists of :\r\na) Compressor\r\nThe compressor used in window air conditioner is of hermetic type. The refrigerant vapour is compressed to high pressure and temperature in the condenser.\r\n\r\nb) Air-cooled condenser\r\nIt is used to cool the high pressure high temperature refrigerant vapour. It is continuous coil made of copper tubing. A propeller type fan is used to draw the necessary air from atmosphere to cool the refrigerant.\r\n\r\nc) Capillary tube\r\nIt is an expansion device. It is used to reduce the pressure and temperature of the refrigerant.\r\n\r\nd) Evaporator\r\nIt is cooling coil made of copper. A centrifugal blower is installed behind the coil to deliver cool air from the evaporator to the room. The blower also sucks warm air from the room and sends it to the evaporator through a Filter.\r\n\r\nApplications:\r\n1) Used in offices, hotels, buses, cars, aero planes for human comfort.\r\n2) Used in textile industries to control moisture.\r\n3) Used in printing press, food industries, chemical plants etc.,\r\n\r\nWindow air conditioner is also known as room air conditioner, and is usually fitted in the window or any opening made in the wall of suitable dimensions. This is then packed with insulating material like thermocoal to achieve better efficiency","headline":"Windows air Conditioning | Working , Components and Application","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2019-03-10","mainEntityOfPage":"False","dateModified":"February 22, 2020","image":{"@type":"ImageObject","url":"","height":0,"width":0},"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/sheet-metal-tools-cutting-marking-bending-tools/" rel="nofollow"><div class="image-container" style="background-image: url('//www.gunkrazy.com/wp-content/uploads/2019/03/sheet-metal-tool-min-300x249.png')"></div><span class="sr-only">link to Sheet Metal Tools | Cutting , Marking , Bending Tools</span></a><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//www.gunkrazy.com/sheet-metal-tools-cutting-marking-bending-tools/">Sheet Metal Tools | Cutting , Marking , Bending Tools</a></p></header><div class="excerpt"><p>Sheet Metal Tools | Cutting , Marking , Bending Tools
Introduction to Sheet metal :
Sheet metal is simply metal formed into thin and flat pieces. It is one of the fundamental forms used in...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/sheet-metal-tools-cutting-marking-bending-tools/" aria-label="View Post: Sheet Metal Tools | Cutting , Marking , Bending Tools">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Sheet Metal Tools | Cutting , Marking , Bending Tools","url":"\/\/www.gunkrazy.com\/sheet-metal-tools-cutting-marking-bending-tools\/","articleBody":"Sheet Metal Tools | Cutting , Marking , Bending Tools\r\nIntroduction to Sheet metal :\r\nSheet metal is simply metal formed into thin and flat pieces. It is one of the fundamental forms used in metalworking, and can be cut and bent into a variety of different shapes. Thicknesses can vary significantly, although extremely thin thicknesses are considered foil or leaf, and pieces thicker than 6 mm (0.25 in) are considered plate. The thickness of the sheet metal is called its gauge. The gauge of sheet metal ranges from 30 gauge to about 8 gauge. The higher the gauge, the thinner the metal is.\r\nThere are many different metals that can be made into sheet metal, such as: Aluminum, brass, copper, steel, tin, nickel and titanium. For decorative uses, important sheet metals include silver, gold, and platinum.\r\n\r\nRead more :\u00a0\r\n\r\nSheet metal gauge to mm - Gauge to Thickness Chart Download\r\n\r\n19 Design Consideration In Sheet Metal | Machine Design\r\nSheet Metal Tools:\r\n1. Cutting Tools\r\n2. Striking Tools\r\n3. Supporting Tools\r\n4. Marking and Measuring Tools\r\n5. Bending and Folding Tools\r\n6. Other Tools\r\n\r\nsheet metal tool\r\n\r\n1. Cutting Tools: (Chisels, Snips or Shears)\r\na) Chisels:\r\nThis is used to cut the sheets. It is also used to remove the unwanted metal form the surface of a job by chipping. Mostly flat type and round nose type chisels are used. Flat chisel are used to obtain flat surface and its cutting edge is V-shape. Its cutting angle is 60\u00b0 and the cutting edge varies from 20 to 25 mm in width. But the cutting edge of the round nose chisel is round in shape and used for making grooves. Its cutting angle varies from 35\u00b0 to 40\u00b0.\r\n\r\nb) Snips (or) Shears:\r\nThe tool similar to scissors used for cutting or shearing thin metal sheets is called snip. Its length varies from 200 mm to 600 mm. Mainly Straight Snip and Curved Snip is used. Bench shear is used to cut the sheet metal of 3 mm thickness.\r\n\r\n2. Striking Tools: (Hammers and Punches)\r\n\r\na) Hammers:\r\nThese are used on the sheet metal for straightening, bending, leveling, riveting, removing nails, forging, chipping etc., with the application of impact load exerted manually. Mainly Ball peen hammer, Cross peen hammers and Mallet used in practice.\r\n\r\nb) Punch:\r\nThis is used for marking out work, locating centres etc. There are four types Dot punch Centre punch, Letter punch and Number punch.\r\n\r\n3. Supporting Tools: (Stakes, Anvils, Swage Block)\r\n\r\na) Stakes:\r\nThe stakes are used for doing various operations like forming, bending, hemming, seaming, etc. There are different shapes of stakes available but based upon the purpose, the required shape of stake is selected. They are Beak Horn stake, Funnel stake, Half moon stake etc.\r\n\r\nb) Anvil:\r\nThe anvil acts as a base for smithy work while hammering. The body of the anvil is made of mild steel (MS), wrought iron or cast iron (CI). The weight of the anvil varies from 100 to 150 kg.\r\n\r\nc) Swage Block:\r\nIt is a CI block having number of slots of different shapes and sizes along its four side faces. It also contains number of through holes of different size and shape from its top to bottom face. This block can be used for bending, punching and shaping of metals.\r\n\r\n4. Marking and Measuring Tools: (Steel rule, Scriber, Trammel, Divider, Swing Blade Protractor, Wire Gauge)\r\n\r\na) Steel rule: It is used for linear measurements up to the accuracy of 0.5 mm.\r\n\r\nb) Scribers: It is made up of hardened steel with pointed end used for marking lines on the sheet.\r\n\r\nc) Trammel (or) beam compass: It is a big size compass used for marking large arcs and circles.\r\n\r\nd) Divider: It is used for dividing straight and curvilinear lines, marking circles and arcs.\r\n\r\ne) Swing Blade Protractor: It is used for marking and measuring angles.\r\n\r\nf) Wire Gauge: It is used for measuring the thickness of sheet metal.\r\n\r\n5. Bending and Folding Tools: (Pliers, Folding Bars)\r\n\r\na) Pliers:\r\nThe pliers are mainly used for bending the sheet metal to the required shape. It is also used for holding and cutting the sheet metal. There are mainly two types \u2013 Pipe pliers and Combination pliers.\r\n\r\nb) Folding Bars:\r\nThe folding bars are used for bending and folding operation of the sheet metal.\r\n\r\n6. Other Tools:\r\n\r\na) Grooving Tools: It is used for making locked joints in sheets like wired edges, slots etc.\r\nb) Bench Plate: It is plate having the holes of different shapes and sizes.\u00a0","headline":"Sheet Metal Tools | Cutting , Marking , Bending Tools","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2019-03-10","mainEntityOfPage":"False","dateModified":"February 22, 2020","image":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2019\/03\/sheet-metal-tool-min-300x249.png","height":249,"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/gas-welding-equipment-basic-of-gas-welding/" rel="nofollow"><div class="image-container" style="background-image: url('//www.gunkrazy.com/wp-content/uploads/2019/03/gas-welding-equipment-300x187.jpg')"></div><span class="sr-only">link to Gas welding equipment | Basic Of Gas Welding</span></a><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//www.gunkrazy.com/gas-welding-equipment-basic-of-gas-welding/">Gas welding equipment | Basic Of Gas Welding</a></p></header><div class="excerpt"><p>Gas welding equipment | Basic Of Gas Welding
GAS WELDING
Oxy Acetylene Welding Principle of Operation: 
When acetylene is mixed with oxygen in correct proportions in the welding torch and ignited,...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/gas-welding-equipment-basic-of-gas-welding/" aria-label="View Post: Gas welding equipment | Basic Of Gas Welding">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Gas welding equipment | Basic Of Gas Welding","url":"\/\/www.gunkrazy.com\/gas-welding-equipment-basic-of-gas-welding\/","articleBody":"Gas welding equipment | Basic Of Gas Welding\r\nGAS WELDING\r\nOxy Acetylene Welding Principle of Operation: \r\nWhen acetylene is mixed with oxygen in correct proportions in the welding torch and ignited, the flame resulting at the tip of the torch is sufficiently hot to melt and join the parent metal. The oxyacetylene flame reaches a temperature of about 3200\u00b0C and thus can melt all commercial metals which, during welding, actually flow together to form a complete bond.\r\nA filler metal rod is generally added to the molten metal pool to build up the seam slightly for greater strength. Oxyacetylene welding does not require the components to be forced together under pressure until the weld forms and solidifies.\r\n\r\nRead more :\u00a0Seminar On Gas Welding - Seminar report pdf Download\r\nGas welding equipment:\r\nThe apparatus used in gas welding consists basically of an oxygen source and a fuel gas source (usually cylinders), two pressure regulators and two flexible hoses (one of each for each cylinder), and a torch. The cylinders are often carried in a special wheeled trolley.\r\n\r\ngas welding equipment\r\n\r\n1. Oxygen Cylinder:\r\nOxygen cylinder is usually painted in black colour. In this cylinder, oxygen is stored under a pressure of 1550 N\/m2. The common cylinder is 1.8 m3, 3.5 m3, 7 m3, etc.,\r\n\r\n2. Acetylene Cylinder:\r\nAcetylene cylinder is usually painted in maroon colour. In this cylinder, acetylene is stored under a pressure of 175 N\/m2. The common cylinder is 1.6 m3, 2.8 m3, 8.4 m3, etc.,\r\n\r\n3. Regulator:\r\nThe regulator is used to control pressure from the tanks by reducing pressure and regulating flow rate.\r\n\r\n4. Gas hoses: \r\n\r\nThe hose is usually a double-hose design, meaning that there are two hoses joined together. The oxygen hose is green and the fuel hose is red. The type of gas the hose will be carrying is important because the connections will have different threads for different types of gas. Fuel gases (red) will use left-hand threads and a groove cut into the nut, while the oxygen (green) will use right-hand threads. This is a safety precaution to prevent hoses from being hooked up the wrong way.\r\n\r\n5. Non-return valve:\r\nBetween the regulator and hose, and ideally between hose and torch on both oxygen and fuel lines, a flashback arrestor and\/or non-return valve should be installed to prevent flame or Oxygen-fuel mixture being pushed back into either cylinder and damaging the equipment or making a cylinder explodes.\r\n\r\n6. Check valve:\r\nA check valve lets gas flow in one direction only. A check valve is usually a chamber containing a ball that is pressed against one end by a spring: gas flow one way pushes the ball out of the way, and no flow or flow the other way lets the spring push the ball into the inlet, blocking it.\r\n\r\n7. Torches:\r\nThe torch is the part that the welder holds and manipulates to make the weld. It has a connection and valve for the fuel gas and a connection and valve for the oxygen, a handle for the welder to grasp, a mixing chamber (set at an angle) where the fuel gas and oxygen mix, with a tip where the flame forms. The top torch is a welding torch and the bottom is a cutting torch\r\n\r\na) Welding torch:\r\nA welding torch head is used to weld metals. It can be identified by having only one or two pipes running to the nozzle and no oxygen-blast trigger and two valve knobs at the bottom of the handle letting the operator adjust the oxygen flow and fuel flow.\r\n\r\nb) Cutting torch:\r\nA cutting torch head is used to cut metal. It is similar to a welding torch, but can be identified by having three pipes that go to a 90 degree nozzle and by the oxygen-blast trigger. Only iron and steel can be cut using this method.\r\n\r\n8. Other Accessories: \r\n\r\na) Filler rod \/ Welding rod: Filler rod is a metal which is used in gas welding to supply additional metal to make the joint.\r\nb) Flux is used in oxy-acetylene gas welding to prevent oxidation and also to remove impurities. The flux may be either in powder or liquid form.\r\n\r\n9. Safety devices:\r\na) Goggles \r\n\r\nb) Leather goggles \r\n\r\nc) Apron","headline":"Gas welding equipment | Basic Of Gas Welding","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2019-03-10","mainEntityOfPage":"False","dateModified":"February 22, 2020","image":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2019\/03\/gas-welding-equipment-300x187.jpg","height":187,"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=115">&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=114"><span class="screen-reader-text">Page </span>114</a> <a class="page-numbers" href="?page_num=115"><span class="screen-reader-text">Page </span>115</a> <span aria-current="page" class="page-numbers current"><span class="screen-reader-text">Page </span>116</span> <a class="page-numbers" href="?page_num=117"><span class="screen-reader-text">Page </span>117</a> <a class="page-numbers" href="?page_num=118"><span class="screen-reader-text">Page </span>118</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=117">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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