Question

What method is used to manufacture panel coils?

(a) Die stamping process

(b) 3 D printing process

(c) Cold bonding process

(d) Hot bonding process

This question was posed to me in a national level competition.

I want to ask this question from Heat Transfer Applications topic in section Heat Transfer Applications of Food Processing Unit Operations

Answer 1

Correct answer is (a) Die stamping process

The best I can explain: Die stamping process is usedfor manufacturing panel coils. In this process, flow channels are die stamped on either one or two metal sheets. When one sheet is engraved and joined to a flatplate, it forms a one-sided embossed panelcoil. When both sheets are stamped, it forms a double sidedembossed panelcoil. Finally the two plates are joined by electric resistance welding.