Shotting process - removes effects of cold working before compacting metals - Material Science

Q.  Before compacting the metals, which process is annealed to remove the effects of cold working?
- Published on 05 Aug 15

a. Machining
b. Crushing
c. Shotting
d. All of these

ANSWER: Shotting
 

    Discussion

  • Sravanthi   -Posted on 07 Oct 15
    Machining, crushing, milling, shotting, graining, atomization are the different mechanical processes in powder manufacturing.
    Milling, crushing, machining are the three processes applied to solid materials at room temperature.

    Shotting, graining, atomization are the three processes annealed to remove the effects of cold working. This is done for compacting and sintering.

    Different metals or alloys can be shotted. The size and character of resultant shot depends on temperature of molten metal. It also depends upon gas diameter of holes and vibration frequency. Formation of high oxide content is the drawback of shotting process. This can be minimized by using inert gases. Nickel, lead, silver etc. are the metal powders obtained by shotting for preliminary breakdown.

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