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Which of the following represents the approximate percentage of metal loss during the blanking operation?

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in Casting-Forming-Welding II by (119k points)
Which of the following represents the approximate percentage of metal loss during the blanking operation?

(a) 2%

(b) 5%

(c) 10%

(d) 30%

I got this question in class test.

The origin of the question is Blanking and Piercing in portion Forming Process of Casting-Forming-Welding II

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Right option is (d) 30%

The best I can explain: In the blanking operation, the material loss is approximately 30 % of the metal sheet used in the cutting off operations. To reduce the waste or metal loss, the shapes to be cut are arranged on the metal sheet properly, this process of reducing metal loss is called as nesting. Nowadays, CAD software is used for this purpose.

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