Starting with a powder name the steps involved in making a p

Starting with a powder, name the steps involved in making a part by Powder Metallurgy (PM) Name one mechanical means of making a powder, i.e. breaking down from larger stock. Name one non mechanical means of making a powder. What is meant by \'green strength\'? At what stage in the process does the PM part have green strength? How does a PM part obtain full strength? Give three reasons why you would use PM to fabricate a part:

Solution

1] a) Generation of powder
b) Blending or mixing
c) Compacting
d) Sintering
e) Sizing (or) impregnation
f) Inspection

2] chopping/cutting/ abrasion methods

3] Thermit reaction/ gas atomization

4] Green strength is a term used to describe a molded or cast products ability to withstand handling, mold ejection, and machining before it is completely cured or hardened.

5]  to withstand mechanical operations to which it issubjected after pressing and before sintering, without damaging its fine details and sharp edges

6] after sintering operations