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Metal Forming
Sheet Metal Forming Processes
Metal Forming Process
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GATE PI
Sheet Metal Forming Processes
Metal Forming
Previous Years Questions
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Marks 1
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The ratio of press force required to punch a square hole of $$30$$ $$mm$$ side in a $$1$$ $$mm$$ thick aluminium sheet t...
GATE PI 2016
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Circular blanks of $$10mm$$ diameter are punched from an aluminium sheet of $$2$$ $$mm$$ thickness. The shear strength o...
GATE PI 2013
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Match the following metal forming processes with their associated stresses in the Work-piece ...
GATE PI 2012
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...
GATE PI 2003
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Which one is not a method of reducing cutting forces to prevent the overloading of press
GATE PI 2003
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A cup of $$10$$ $$cm$$ height and $$5$$ $$cm$$ diameter is to be made from a sheet metal of $$2mm$$ thickness. The numbe...
GATE PI 2002
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For $$50\% $$ penetration of work material, a punch with single shear equal to thickness will
GATE PI 2001
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The function of draw bead in the deep drawing operation is to
GATE PI 1994
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In producing a punched hole of $$20mm$$ diameter, the dimension of the punch is ........ given the radial die clearance ...
GATE PI 1994
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In blanking operation, the best way to improve the smoothness and squarness of the edges is to
GATE PI 1994
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In a bending operation, If the modulus of elasticity $$E$$ is increased keeping all other parameters unchanged, the spri...
GATE PI 1994
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Wall thickness of drawn cup is controlled by
GATE PI 1992
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A cup of $$10$$ $$cm$$ height and $$5$$ $$cm$$ diameter is to be made from a sheet metal of $$2mm$$ thickness. The numbe...
GATE PI 1991
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In .................. A ................. operation the diameter of the desired hole will be smaller than the diameter...
GATE PI 1991
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In progressive die (for sheet metal), spring loaded stripper plate is used to clamps the stock until:
GATE PI 1991
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Marks 2
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Calculate the punch size in $$mm,$$ for a circular blanking operation for which details are given below. Size of the bla...
GATE PI 2012
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A disc of $$200$$ $$mm$$ diameter is blanked from a strip of an aluminium alloy of thickness $$3.2$$ $$mm.$$ The materia...
GATE PI 2009
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A blank of $$50$$ $$mm$$ diameter is to be sheared from a sheet of $$2.5$$ $$mm$$ thickness. The required radial clearan...
GATE PI 2008
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Match the following ...
GATE PI 2008
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Circular blanks of $$35$$ $$mm$$ diameter are punched from a steel sheet of $$2$$ $$mm$$ thickness. If the clearance per...
GATE PI 2007
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A cup is to be drawn to a diameter of $$70mm$$ with $$35mm$$ depth from a $$0.5mm$$ thick sheet metal. The cup is drawn...
GATE PI 2006
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A cup is to be drawn to a diameter of $$70mm$$ with $$35mm$$ depth from a $$0.5mm$$ thick sheet metal. The cup is drawn...
GATE PI 2006
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It is required to punch a hole of diameter $$10mm$$ on a sheet of thickness $$3mm.$$ The shear strength of the work mate...
GATE PI 2006
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In a surface broaching process, a broach having $$5mm$$ pitch and cut per teeth $$0.05mm$$ is used for reducing the thic...
GATE PI 2006
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Match the items in Group - $${\rm I}$$ and $${\rm I}$$ $${\rm I}$$ ...
GATE PI 2006
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A gear with $$84$$ teeth is to be machined using a milling process with indexing. The index plate has the following four...
GATE PI 2006
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A work piece of $$1000$$ $$mm$$ length and $$300$$ $$mm$$ width is machined by planning operation with a feed of $$0.3$...
GATE PI 2006
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It is required to punch a hole of diameter $$10mm$$ on a sheet of thickness $$3mm.$$ The shear strength of the work mate...
GATE PI 2006
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A $$\phi \,\,25$$ $$mm$$ hole is pierced in a $$t=2.5mm$$ thick steel sheet having shear strength $$\tau = 350\,\,MPa.$...
GATE PI 2005
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In deep drawing of sheet metal, spring loaded stripper clamps the work until:
GATE PI 2004
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A hole of $$40$$ $$mm$$ diameter is pierced in a steel sheet of $$4$$ $$mm$$ thickness without shear on the tool. Shear ...
GATE PI 2004
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Determine the load required to punch a $$20$$ $$mm$$ diameter hole in $$2$$ $$mm$$ thick sheet. The properties of the ma...
GATE PI 2004
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A cylindrical cup of $$48.5$$ $$mm$$ diameter and $$52$$ $$mm$$ height has a corner radius of $$1.5$$ $$mm$$ Cold rolled...
GATE PI 2004
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Consider the following statements related piercing and blanking $$1.$$ Shear on the punch reduces the maximum cutting fo...
GATE PI 2003
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A hydraulic press is used to produce circular blanks of $$10$$ $$mm$$ diameter from a sheet of $$2$$ $$mm$$ thickness. I...
GATE PI 2003
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In sheet metal working, the spring back increase when $$P:$$ Ratio of bend radius to sheet thickness is small $$Q:$$ Yo...
GATE PI 2002
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In metal forming operation, the true strain in the $$X$$-direction is $$0.3$$ and in the $$Y$$-direction is $$-0.1.$$ Th...
GATE PI 1994
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A hemispherical cup of radius $$'R'$$ is formed in a press working operation. The radius of blank would be
GATE PI 1992
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Calculate the smallest punch diameter that can be designed for piercing sheet metal strip with the following data. Crush...
GATE PI 1990
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