Hobbing, etching, electroforming, and electrical-discharge machining are ____ processes used in making molds in which no cutting tools are involved.
A) tool making
B) mold casting
C) metal-displacement
D) die casting

Question

Quizplus · Accepted Answer

Hobbing, etching, electroforming, and electrical-discharge machining are considered metal-displacement processes because they involve shaping or forming metal by displacing or removing material without the direct use of cutting tools.

Hobbing, Etching, Electroforming, and Electrical-Discharge Machining Are ____ Processes Used