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The cut edge of the material tends to be __________ than the base metal in PBM.

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in Advanced Machining by (962k points)
The cut edge of the material tends to be __________ than the base metal in PBM.

(a) Smoother

(b) Harder

(c) Same as

(d) None of the mentioned

This question was posed to me in my homework.

I need to ask this question from PBM in section Thermal Processes of Advanced Machining

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The correct answer is (b) Harder

To explain: The cut edge of material in PBM tends to be harder than the base metal.

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