1. Glass is a good lubricant in hot extrusion. Would you use glass for impression-die forging also?. 1 answer below »

1. Glass is
a good lubricant in hot extrusion. Would you use glass for impression-die
forging also? Explain. |

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2. How would
you go about avoiding center-cracking defects in extrusion? Explain why your
methods would be effective.