GATE PI 2006 | Sheet Metal Forming Processes Question 10 | Metal Forming

GATE PI 2006

MCQ (Single Correct Answer)

-0.6

It is required to punch a hole of diameter $$10mm$$ on a sheet of thickness $$3mm.$$ The shear strength of the work material is $$420Mpa.$$ The required punch force is

$$19.78$$ $$kN$$

$$39.56$$ $$kN$$

$$98.9$$ $$kN$$

$$395.6$$ $$kN$$

GATE PI 2006

MCQ (Single Correct Answer)

-0.6

Match the items in Group - $${\rm I}$$ and $${\rm I}$$ $${\rm I}$$ GATE PI 2006 Metal Forming - Sheet Metal Forming Processes Question 9 English

$$P - 3,\,\,Q - 4,\,\,R - 2,\,\,S - 1$$

$$P - 4,\,\,Q - 4,\,\,R - 1,\,\,S - 2$$

$$P - 2,\,\,Q - 3,\,\,R - 4,\,\,S - 1$$

$$P - 2,\,\,Q - 1,\,\,R - 4,\,\,S - 3$$

GATE PI 2006

MCQ (Single Correct Answer)

-0.6

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 in one operation. Assume $${\sigma _u} = 430\,\,MPa.$$

The maximum drawing force is

$$0.047MN$$

$$0.82MN$$

$$0.83MN$$

$$9.69MN$$

GATE PI 2006

MCQ (Single Correct Answer)

-0.6

In a surface broaching process, a broach having $$5mm$$ pitch and cut per teeth $$0.05mm$$ is used for reducing the thickness by $$6mm.$$ If the length of the work piece is $$50mm$$ and the cutting speed is $$0.05m/s,$$ the time required / pass in seconds is

$$11$$

$$12$$

$$13$$

$$1200$$

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