Angular clearance provided in a sheet metal blanking die is to help to prevent t

Question

Angular clearance provided in a sheet metal blanking die is to help to prevent the jamming of the die opening by the spring back in the slug that comes through the die opening.

True

False

The effect of providing shear is to distribute the cutting action over a period of time depending on the amount of shear provided.  

True

False

Pilots in progressive dies are used to strengthen the punch.

True

False

As far as possible, the sheet metal bending is to be done in along the grain (rolling) direction in the metal so that there will be no tearing of the sheet.

True

False

In a blanking die, ductile materials require smaller clearances and longer penetration of the punch compared to harder materials.  

True

False

Explanation / Answer

1. True

2. True

3. False...pilot locates the punching position

4. False

5.True

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