ToolingU Metal Cutting Exam Questions and Answers 100% Correct!

Bandsaw - ANSWER-A machine with a long, continuous cutting blade with serrated teeth that is looped around two or more wheels. The wheels continuously spin the blade during operation. Brass - ANSWER-An alloy of copper and zinc. Brass offers a balance of electrical and thermal conductivity and strength. Most EDM wire is made of brass. Capacitor - ANSWER-A device that stores an electric charge. EDMs require capacitors to generate the electric current used for machining. Ceramic - ANSWER-A hard, brittle material consisting of compounds formed by metallic and nonmetallic elements. Most ceramics do not conduct electricity. Deionized Water - ANSWER-Water that does not contain any dissolved solids. Deionized water is used as a dielectric fluid for wire EDM machines. Die Set - ANSWER-An assembly of two hard, wear-resistant metal plates with matching patterns that are used to shape and form metal parts. Die sets open and close during operation. Dielectric Fluid - ANSWER-A fluid that does not conduct an electric current under normal circumstances. For EDM, the dielectric fluid insulates and cools the electrode and workpiece, conveys the spark, and flushes away the removed metal. Electrical Discharge Machining - ANSWER-A widely used nontraditional machining process that removes metal through the repeated sparking of an electrical current. During machining, the workpiece and an electrode are immersed in a dielectric fluid. Electrically Conductive - ANSWER-Able to effectively convey an electric current with low resistance. Electrode - ANSWER-A device used to convey an electric current, which can either leave or enter the electrode. EDM machines generate an electric spark between an electrode and the workpiece. Finishing Operation - ANSWER-A machining operation used to improve surface finish and bring the part to its final size. For