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Which of the following has high machining speeds in Laser Beam Machining?

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in Advanced Machining by (962k points)
Which of the following has high machining speeds in Laser Beam Machining?

(a) Metals

(b) Non metals

(c) Metal alloys

(d) All of the mentioned

The question was asked during an internship interview.

I want to ask this question from LBM-Material Removal topic in portion Thermal Processes of Advanced Machining

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The correct choice is (b) Non metals

To explain I would say: Non metallic material machine at higher speeds than metallic ones due to higher reflectivity in metallic materials.

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