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class="excerpt"><p>Mechanical Interview Questions with For Casting Manufacturing Process.  Casting Process- Mechanical Interview Questions with answers
1. What Do you know about Casting ? 
The Process of...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/casting-process-mechanical-interview/" aria-label="View Post: Casting Process- Mechanical Interview Questions with answers">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Casting Process- Mechanical Interview Questions with answers","url":"\/\/www.gunkrazy.com\/casting-process-mechanical-interview\/","articleBody":"Mechanical Interview Questions with For Casting Manufacturing Process.\r\n\r\n\r\nCasting Process- Mechanical Interview Questions with answers\r\n1. What Do you know about Casting ?\u00a0\r\nThe Process of producing metal parts by pouring molten metal in to the mould cavity of the required shape and allowing the metal to solidify. The solidified metal piece is called as casting.\r\n\r\n\r\n Casting Process- Mechanical Interview Questions with answers\r\n\r\n\r\n\r\n2. What is draft allowance?\u00a0 How is it provided for patterns?\r\nIt the vertical faces of pattern are perpendicular to parting line, the edges of mould may damaged when the pattern is removed from the sand. Hence the vertical faces are mode taper for easy removal of pattern. This slight taper given on the vertical sides of pattern in caused draft allowance.\r\n\r\n\r\n3. What are the common allowances provided on pattern?\r\nThe various types of pattern allowances normally given are;\r\n1. Shrinkage allowance\r\n2. Machining or finish allowance\r\n3. Draft or taper allowance\r\n4. Distortion or camber allowance\r\n5. Rapping or shake allowance\r\n\r\n4. Is pattern differ from casting?\r\nPattern is slightly larger in size as compared to the casting. Pattern may be in two or three pieces where as a casting is in one piece.\r\n\r\n5. Name the various pattern materials.\r\n\r\n \tWood \u2013 Teak wood, white pine etc.\r\n \tMetal \u2013 cast iron, brass, aluminium etc.\r\n \tPlaster\r\n \tPlastic\r\n \tWax\r\n\r\n6. What are the different types of patterns used in foundries?\r\nSolid or single piece pattern, match plate pattern, split pattern, sweep pattern, skeleton Pattern, segmental pattern, loose piece pattern, shell pattern.\r\n\r\n7. What are the uses of runner and riser?\r\nRunner:\r\n\r\n \tIt is used to make a sprue a hole in the cope.\r\n \tIt receives the molten metal from the pouring basin and passes to the cavity.\r\n\r\nRiser:\r\n\r\n \tIt supplies excess molten metal to the solidifying casting.\r\n \tIt allows the escape of air.\r\n\r\n8. What are chaplets?\r\nSome times it is not possible to provide sufficient support for a core in the mould being\r\npoured, if the cores are bigger in size. In such cases the core is supported with rigid metal\r\npieces called chaplets.\r\n\r\n9. Name four different casting defects.\r\n\r\n \tShifts - Two halves mismatching or casting\r\n \tHot tear - Internal or external cracks\r\n \tFins - Thin projection of parting line\r\n \tInclusions - Foreign material present in casting\r\n\r\n10. What function of core ?\r\n\r\nFunctions of core are:\r\n\r\n \tCore provides a means of forming the main internal cavity for hollow casting.\r\n \tCore provides external undercut feature.\r\n \tCores can be inserted to obtain deep recesses in the casting.\r\n \tCores can be used to increase the strength of the mould.\r\n\r\n10. Explain the term fettling.\r\nFettling is the name given to cover all those operations which help the casting to give a good appearance. It includes the removal of cores, sand, gates, risers, runners and other Unwanted projections from the casting.\r\n\r\n11. Classify moulding Machines.\r\n1.Squeezer Machine.\r\n2.Jolt machine.\r\n3.Jolt \u2013 squeezer Machine.\r\n4.Slinging Machines.\r\n5. Patten draw Machines.","headline":"Casting Process- Mechanical Interview Questions with answers","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2017-10-13","mainEntityOfPage":"False","dateModified":"February 23, 2020","image":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2017\/10\/castingprocess-mechanicalinterviewquestionswithanswers-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/automatic-pneumatic-glass-hole-drilling/" rel="nofollow"><div class="image-container" style="background-image: url('//www.gunkrazy.com/wp-content/uploads/2017/10/automaticpneumaticglassholedrillingmachine-300x186.jpg')"></div><span class="sr-only">link to Automatic Pneumatic Glass hole Drilling Machine</span></a><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//www.gunkrazy.com/automatic-pneumatic-glass-hole-drilling/">Automatic Pneumatic Glass hole Drilling Machine</a></p></header><div class="excerpt"><p>Automatic Pneumatic Glass hole Drilling Machine-Mechanical Project  SYNOPSIS  In small-scale industries and automobile maintenance shops, there are frequent needs of, drilling, boring, reaming...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/automatic-pneumatic-glass-hole-drilling/" aria-label="View Post: Automatic Pneumatic Glass hole Drilling Machine">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Automatic Pneumatic Glass hole Drilling Machine","url":"\/\/www.gunkrazy.com\/automatic-pneumatic-glass-hole-drilling\/","articleBody":"Automatic Pneumatic Glass hole Drilling Machine-Mechanical Project\r\n\r\nSYNOPSIS\r\n\r\nIn small-scale industries and automobile maintenance shops, there are frequent needs of, drilling, boring, reaming machine.\u00a0 Huge and complicated designed parts cannot be machined in ordinary machine.\u00a0 Further for every operation separate machine is required.\u00a0 The increases the initial cost required, large area requirements and large number of machine are required.\r\n\r\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 In a single machine all the above specified operation can be carried out, i.e., after glass\u00a0 drilling,., after ordinary\u00a0 drillbit can be attached, and the operation can be performed. By the application of pneumatics, the pneumatic cylinder with piston which is operated by an air compressor will give the successive action to operate this machine.\u00a0 By this we can achieve our industrial requirements.pneumatic gun coupled with pneumatic cylinder.This machine very much useful to glasshole making machine.\r\n\r\nINTRODUCTION\r\n\r\nThe main objective of our project is to perform various machining operations using \u201cAuto Feed Mechanism\u201d in drilling machine with the help of pneumatic sources.\r\n\r\nFor developing industry the operation performed and the parts or components produced should have it minimum possible production cost, then only industry runs profitably.\r\n\r\nIn small-scale industry and automobile maintenance shops, there are frequent needs of , drilling, boring and reaming .\u00a0 Further for every operation separate machine is required.\u00a0 This increases the initial cost required, large area requirements and large number of machines is required.\u00a0 In our project the above complicated are rectified.\r\n\r\nAutomatic Pneumatic Glass hole Drilling Machine\u00a0\r\n\r\n\u00a0\r\nWORKING PRINCIPLE\r\n\r\nThe compressed air from the compressor is used as the force medium for this operation.\u00a0 There are one\u00a0 pneumatic double acting cylinder used.\u00a0 The air\u00a0 from the compressor enters to the flow control valve.\r\n\r\nThe speed of one way of air enters to the pneumatic cylinder\u00a0 unit.\u00a0 Inside the cylinder\u00a0 having piston\u00a0 arrangement .This arrangement fixing for top of the Stand.\r\n\r\nThe other way of air enters to the solenoid valve.\u00a0 The function of solenoid valves all of air correct time interval.\u00a0 One-way of air enters to the cylinder 1 due to pressure different work piece is drilled\u00a0 .\u00a0 The other way of air enters to the\u00a0 cylinder due to pressure difference by means of drilling head is go to old position .solenoid valve is actuated which use of solenoid valve .pneumatic gun coupled with pneumatic cylinder ,solenoid valve controlled for timing control unit.This machine diamond drill bit used.\r\n\r\nAPPLICATIONS\r\n\r\n\r\n \tIt is used in glass\u00a0 house works.\r\n \tIt is used for drilling\u00a0 \u00a0rear view glass in house.\r\n\r\n\r\nADVANTAGES\r\n\r\n\r\n \tCompact and portable, so easy to transfer and shift.\r\n \tAccuracy up to .01mm is obtained.\r\n \tSimple in construction\r\n \tLess power consumption.\r\n \tMachining time is less\r\n \tMaintenance cost is less.\r\n \tWeightless Mechanism.\r\n\r\n\r\nDISADVANTAGES\r\n\r\n\r\n \tOnly small pieces can be machined.\r\n \tDrilling\u00a0 can be done only for the glasses above 6 mm.\r\n \tSkilled labour is required","headline":"Automatic Pneumatic Glass hole Drilling Machine","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2017-10-12","mainEntityOfPage":"False","dateModified":"February 23, 2020","image":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2017\/10\/automaticpneumaticglassholedrillingmachine-300x186.jpg","height":186,"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/seam-welding-diagram-working-advantages/" rel="nofollow"><div class="image-container" style="background-image: url('//www.gunkrazy.com/wp-content/uploads/2017/10/seamwe-dingdiagram-286x300.jpg')"></div><span class="sr-only">link to Seam Welding- Diagram, Working ,Advantages and Disadvantages</span></a><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//www.gunkrazy.com/seam-welding-diagram-working-advantages/">Seam Welding- Diagram, Working ,Advantages and Disadvantages</a></p></header><div class="excerpt"><p>Seam Welding- Diagram, Working ,Advantages and Disadvantages  Seam welding is a resistance welding process in which overlapping sheets are joined by local fusion progressively, along a joint, by...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/seam-welding-diagram-working-advantages/" aria-label="View Post: Seam Welding- Diagram, Working ,Advantages and Disadvantages">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Seam Welding- Diagram, Working ,Advantages and Disadvantages","url":"\/\/www.gunkrazy.com\/seam-welding-diagram-working-advantages\/","articleBody":"Seam Welding- Diagram, Working ,Advantages and Disadvantages\r\n\r\nSeam welding is a resistance welding process in which overlapping sheets are joined by local fusion progressively, along a joint, by two rotating the circular electrodes. Fusion takes place because of heat, which is generated, from the resistance to electric current flow through the work parts\u00a0which are held together under pressure by electrodes.\r\n\r\nDiagram Of Seam Welding Process\r\n\r\n\r\nPrinciple of Operation (Procedure)\r\na) The work-pieces to be seam welded are cleaned, overlapped suitably and placed between the two circular electrodes which hold the work-pieces together by the pressure on electrode force.\r\n\r\nb) Switch on the coolant supply (in some machines, the electrodes are cooled by external spray of water; in others, the electrodes are cooled by refrigerant fluid that flow inside the working electrodes).\r\n\r\nc) Switch on the current supply. As the first current impulse is applied, the power driven circular electrodes are set in rotation and the work-pieces steadily move forward.\r\n\r\nd) If the current is put off and on quickly, a continuous fusion zone made up of overlapping nuggets is obtained. It is known as stitch welding.\r\n\r\ne) If individual spot welds are obtained by constant and regularly timed interruption of the welding current, the process is known as roll (spot) welding.\r\n\r\n\r\nAdvantages of Seam Welding\r\n\r\n\r\n \tIt can produce gas tight or liquid tight joints.\r\n \tOverlap can be less than spot or projections welds.\r\n \tSeveral parallel seams may be produced\r\n\r\n\r\nDisadvantages of Seam Welding\u00a0\r\n\r\n \tCost of equipment is high as compared to spot welding set .\r\n \tWelding can be done only along a straight or uniformly curved line.\r\n \tIt is difficult to weld thickness greater than 3 mm.\r\n\r\n\r\nApplications of Seam Welding:\r\nIt is used for welding of stainless steels, steels alloys, nickel and its alloys, magnesium alloys etc.","headline":"Seam Welding- Diagram, Working ,Advantages and Disadvantages","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2017-10-11","mainEntityOfPage":"False","dateModified":"February 23, 2020","image":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2017\/10\/seamwe-dingdiagram-286x300.jpg","height":300,"width":286},"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/cupola-furnace/" rel="nofollow"><div class="image-container" style="background-image: url('//www.gunkrazy.com/wp-content/uploads/2017/10/cupolafurnacediagram-264x300.jpg')"></div><span class="sr-only">link to Cupola Furnace-Diagram,Construction,Working</span></a><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//www.gunkrazy.com/cupola-furnace/">Cupola Furnace-Diagram,Construction,Working</a></p></header><div class="excerpt"><p>Cupola Furnace-Diagram,Construction,Working  Cupola
Cupola furnaces are tall, cylindrical furnaces used to melt iron and ferrous alloys in foundry operations. Alternating layers of metal and...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/cupola-furnace/" aria-label="View Post: Cupola Furnace-Diagram,Construction,Working">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Cupola Furnace-Diagram,Construction,Working","url":"\/\/www.gunkrazy.com\/cupola-furnace\/","articleBody":"Cupola Furnace-Diagram,Construction,Working\r\n\r\nCupola\r\nCupola furnaces are tall, cylindrical furnaces used to melt iron and ferrous alloys in foundry operations. Alternating layers of metal and ferrous alloys, coke, and limestone are fed into the furnace from the top. A schematic diagram of a cupola is shown in Figure. This diagram of a cupola illustrates the furnace's cylindrical shaft lined with refractory and the alternating layers of coke and metal scrap. The molten metal flows out of a spout at the bottom of the cupola.\r\nDescription of Cupola\r\n\r\n\r\n \tThe cupola consists of a vertical cylindrical steel sheet and lined inside with acid refractory bricks. The lining is generally thicker in the lower portion of the cupola as the temperature are higher than in upper portion\r\n \tThere is a charging door through which coke, pig iron, steel scrap and flux is charged\r\n \tThe blast is blown through the tuyeres\r\n \tThese tuyeres are arranged in one or more row around the periphery of cupola\r\n \tHot gases which ascends from the bottom (combustion zone) preheats the iron in the preheating zone\r\n \tCupolas are provided with a drop bottom door through which debris, consisting of coke, slag etc. can be discharged at the end of the melt\r\n \tA slag hole is provided to remove the slag from the melt\r\n \tThrough the tap hole molten metal is poured into the ladle\r\n \tAt the top conical cap called the spark arrest is provided to prevent the spark emerging to outside.\r\n\r\nSchematic Diagram Of\u00a0 Cupola Furnace :\r\nDiagram of Cupola Furnace\r\n\r\n\r\nOperation:-\r\nFirst the drop door at the bottom is closed. Sand bed with slope towards tap hole is rammed. Coke bed of suitable height is prepared above the sand bed and is ignited through the tap hole. After proper ignition, alternate layers of charge, flux and coke are fed through the charge door. Then the charge is allowed to soak in the heat and the air blast is turned on. Within 5 to 10 mins, the molten metal is collected through the tap hole. When enough metal is collected in the well of the cupola, the slag is drained off through the slag hole. Then the molten metal is collected in the ladles and is transported to the moulds with a minimum time loss.\r\nFluxes are added in the charge to remove the oxides and other impurities present in the metal. The flux commonly used is lime stone (CaCO3) in a proportion of 2 to 4% of the metal charge. Others fluxes used are dolomite, sodium carbonate, calcium carbide. Flux reacts with oxides to form compounds having low melting point and lighter so that it will float on the metal pool.\r\nCharge calculations:-\r\nCarbon:-\u00a0\r\nWhen charge comes through the coke bed, some amount of carbon is picked up by the metal depending on the temperature and the time when the metal is in contact with the coke. It is of the order of 0.15% carbon.\r\n\r\nSilicon:-\r\nIt is Oxidised in the cupola and there will be a loss of 10% silicon. It may be as high as 30%. To increase the silicon content, ferrosilicon is added to the metal.\r\n\r\nManganese:-\u00a0\r\nThere is a loss of 15 to 20% manganese during melting process. The content of manganese can be increased by the addition of ferromanganese.\r\n\r\nSulphur-\u00a0\r\nThere will a sulphur pick up in a range of 0.03 to 0.05%.","headline":"Cupola Furnace-Diagram,Construction,Working","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2017-10-09","mainEntityOfPage":"False","dateModified":"February 23, 2020","image":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2017\/10\/cupolafurnacediagram-264x300.jpg","height":300,"width":264},"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/important-terms-in-metrology/" rel="nofollow"><div class="image-container" style="background-image: url('//www.gunkrazy.com/wp-content/uploads/2017/10/sensitivityofmeasuringinstrument-300x234.jpg')"></div><span class="sr-only">link to Some important terminologies used in measurement</span></a><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//www.gunkrazy.com/important-terms-in-metrology/">Some important terminologies used in measurement</a></p></header><div class="excerpt"><p>Things Should Known by Quality Engineer related measurement.
Some important terminologies used in measurement  1.Sensitivity   It should be noted that sensitivity is a term associated...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/important-terms-in-metrology/" aria-label="View Post: Some important terminologies used in measurement">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Some important terminologies used in measurement","url":"\/\/www.gunkrazy.com\/important-terms-in-metrology\/","articleBody":"Things Should Known by Quality Engineer related measurement.\r\nSome important terminologies used in measurement\r\n\r\n\r\n1.Sensitivity\u00a0\r\n\r\n\r\n\r\nIt should be noted that sensitivity is a term associated with the measuring equipment whereas accuracy and precision are association with measuring process. Sensitivity means the ability of a measuring device to detect small differences in a quantity being measured. For instance if a very small change in voltage applied to 2 voltmeters results in a perceptible change in the indication of one instrument and not in the other. Then the former (A0 is send to be more sensitive. Numerically it can be determined in this way for example if on a dial indicator the scale spacing is 1.0 mm and the scale division value is 0.01 mm then sensitivity =100. it is also called amplification factor or gearing ratio.\r\n\r\nSensitivity Of Measuring instrument\r\n\r\n\r\n\r\nIt is possible that the more sensitive instrument may be subjected to drifts due to thermal and\u00a0other effects so that its indications may be less repeatable than these of the instrument of lower sensitivity.\r\n\r\n2.Readability\r\n\r\n\r\nReadability refers to the case with which the readings of a measuring instrument can be read. It is the susceptibility of a measuring device to have its indication converted into more meaningful number. Fine and widely spaced graduation lines ordinarily improve the readability. If the graduation lines are very finely spaced the scale will be more readable by using the microscope however with naked eye the readability will be poor.\r\n\r\n\r\nIn order to make micrometer more readable they are provided with vernier scale. It can also be improve by using magnifying devices.\r\n\r\n\r\n3.Repeatability\r\n\r\n\r\nIt is the ability of the measuring instrument to repeat the same results when measurement are\r\n\r\n\r\ncarried out\r\n\r\n\r\n\r\n \tBy same observer\r\n \tWith the same instrument\r\n \tUnder the same conditions\r\n \tWithout any change in location\r\n \tWithout change in the method of measurement\r\n \tAnd the measurement is carried out in short interval of time.\r\n\r\n\r\n\r\nIt may be expressed quantitatively in terms of dispersion of the results.\r\n\r\n\r\n4. Reproducibility\r\n\r\n\r\nReproducibility is the consistency of pattern of variation in measurement i.e closeness of the agreement between the results of measurement of the same quantity when individual measurement are carried out\r\n\r\n\r\n\r\n \tBy different observer\r\n \tBy different methods\r\n \tUsing different instruments\r\n \tUnder different condition, location and times.\r\n\r\n\r\n\r\nIt may also be expressed quantitatively in terms of dispersion of the results.\r\n\r\n\r\n5.Calibration\r\n\r\n\r\n \tThe calibration of any measuring instrument is necessary for the sake of accruing of measurement process. It is the process of framing the scale of the instrument by applying some standard (known) signals calibration is a pre-measurement process generally carried out by manufactures.\r\n\r\nCalibration\r\n\r\n \tIt is carried out by making adjustment such that the read out device produces zero output for zero measured input similarly it should display output equipment to the known measured input near the full scale input value.\r\n \tIf accuracy is to be maintained the instrument must be checked and recalibration if necessary.\r\n \tAs far as possible the calibration should be performed under similar environmental condition with the environment of actual measurement\r\n\r\n\r\n6.Magnification\r\n\r\n\r\nMagnification means increasing the magnitude of output signal of measuring instrument many times to make it more readable. The degree of magnification should bear some relation to the accuracy of measurement desired and should not be larger than necessary. Generally the greater the magnification the smaller is the range of measurement.","headline":"Some important terminologies used in measurement","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2017-10-09","mainEntityOfPage":"False","dateModified":"February 23, 2020","image":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2017\/10\/sensitivityofmeasuringinstrument-300x234.jpg","height":234,"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/car-shock-absorber-function-working-of/" rel="nofollow"><div class="image-container" style="background-image: url('//www.gunkrazy.com/wp-content/uploads/2017/10/CarShockAbsorberFunctionWorkingOfShockAbsorber-255x300.gif')"></div><span class="sr-only">link to Car Shock Absorber | Function , Working Of Shock Absorber</span></a><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//www.gunkrazy.com/car-shock-absorber-function-working-of/">Car Shock Absorber | Function , Working Of Shock Absorber</a></p></header><div class="excerpt"><p>Car Shock Absorber | Function , Working Of Shock Absorber
If only springs are used to absorb shocks, the oscillations of springs continue even after the vehicle has passed over a bump. The...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/car-shock-absorber-function-working-of/" aria-label="View Post: Car Shock Absorber | Function , Working Of Shock Absorber">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Car Shock Absorber | Function , Working Of Shock Absorber","url":"\/\/www.gunkrazy.com\/car-shock-absorber-function-working-of\/","articleBody":"Car Shock Absorber | Function , Working Of Shock Absorber\r\nIf only springs are used to absorb shocks, the oscillations of springs continue even after the vehicle has passed over a bump. The oscillations cause the wheels the jumps up and fall down till the oscillations die out. Thus, dampers or shock absorbers are used to arrest the oscillation of springs after the vehicle passes over irregular road surface.Shock absorbers are necessary used with coil springs. In case of leaf springs, the friction between leaves provides some dampening effect. However, this is not sufficient sometimes, depending upon friction between leaves. Hence, shock absorbers are necessarily used as additional damping devices.\r\n\r\nFunction of Shock Absorbers\r\nAs explained earlier, the function of the shock absorber is to dampen the vibrations of coil and leaf springs used in the suspension system. These vibrations are generated when vehicle passes over a road bump.\r\nWorking of Telescopic type Shock Absorber\u00a0\r\nIn modern cars, hydraulic shock absorbers are used. These absorbers use a piston and a cylinder where cylinder is filled with a suitable oil. The oil is used to dampen the oscillations of piston by a suitable arrangement. The construction of a telescopic type shock absorber has been shown in Figure\r\n(a) Shock Absorber under Compression\r\n(b) Shock Absorber under Expansion\r\nSectional View of Telescopic Type Shock Absorber\u00a0\u00a0\r\n\r\n\u00a0\r\nThe telescopic shock absorber, mainly consists of a piston a cylinder tube and a reservoir tube. The piston has been provided with through orifices or opening so that fluid can pass from top to bottom or from bottom to top reservoir.Figure\u00a0 shows the condition when absorber is compressed. This happens when vehicle passes over a bump. Under this condition the shock absorber becomes short in length. The piston rod forces the piston down into cylinder tube.Therefore, fluid under the piston is compressed to high pressure. The fluid passes forcefully through small orifices (in piston) into the moves ahead of bump or drops into a depression in the road, the shock absorber expands. Under this condition the piston moves up in the cylinder tube. Because of this, fluid is forced from upper part of cylinder tube to the lower part through the orifices provided in the piston.In both the cases, i.e. expansion and compression, fluid is forced through orifices.Because of this the motion of the piston is slowed down. This puts restriction over the spring action and vibrations of the frame are arrested in shortest time. In this way, shocks (of bump and depression of road) are absorbed by the shock absorber. It also prevents excessive oscillations of wheel when it passes over a bump and depression on the road.Shock absorbers are always provided along with springs in the suspension system of automobiles to prevent oscillations of springs.","headline":"Car Shock Absorber | Function , Working Of Shock Absorber","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2017-10-08","mainEntityOfPage":"False","dateModified":"February 23, 2020","image":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2017\/10\/CarShockAbsorberFunctionWorkingOfShockAbsorber-255x300.gif","height":300,"width":255},"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=220">&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=219"><span class="screen-reader-text">Page </span>219</a> <a class="page-numbers" href="?page_num=220"><span class="screen-reader-text">Page </span>220</a> <span aria-current="page" class="page-numbers current"><span class="screen-reader-text">Page </span>221</span> <a class="page-numbers" href="?page_num=222"><span class="screen-reader-text">Page </span>222</a> <a class="page-numbers" href="?page_num=223"><span class="screen-reader-text">Page </span>223</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=222">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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