Question:
The following steps are involved in unidirectional die compaction in powder metallurgy, but they are jumbled:
I. Removal of load by retracting the punch
II. Ejection of the green compact
III. Charging the powder mix
IV. Applying load using a punch to compact the powders
Choose the correct sequence:
The following steps are involved in unidirectional die compaction in powder metallurgy, but they are jumbled:
I. Removal of load by retracting the punch
II. Ejection of the green compact
III. Charging the powder mix
IV. Applying load using a punch to compact the powders
Choose the correct sequence:
I. Removal of load by retracting the punch
II. Ejection of the green compact
III. Charging the powder mix
IV. Applying load using a punch to compact the powders
Choose the correct sequence:
Show Hint
Proper powder filling ensures uniform density in compaction.
Updated On: Jun 29, 2026
- III, IV, I, II
- III, I, IV, II
- IV, III, I, II
- IV, I, III, II
Show Solution
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The Correct Option is A
Solution and Explanation
Concept:
Die compaction in powder metallurgy involves sequential steps to convert powder into a green compact.
Step 1: Charging the powder.
Powder is filled into die cavity: \[ III \]
Step 2: Compaction.
Punch applies pressure and compresses powder: \[ IV \]
Step 3: Load removal.
After compaction, pressure is released: \[ I \]
Step 4: Ejection.
Green compact is ejected from die: \[ II \] Final Sequence: \[ \boxed{III,\ IV,\ I,\ II} \]
Step 1: Charging the powder.
Powder is filled into die cavity: \[ III \]
Step 2: Compaction.
Punch applies pressure and compresses powder: \[ IV \]
Step 3: Load removal.
After compaction, pressure is released: \[ I \]
Step 4: Ejection.
Green compact is ejected from die: \[ II \] Final Sequence: \[ \boxed{III,\ IV,\ I,\ II} \]
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