The frontal working area of the electrode in an ECM operation is 2000 mm2. The applied current is 2000 amps and the voltage is 12 volts. The material being cut is nickel (valence = 2, CNi =3.42x10-2mm/A-s). (a) If the process is 90% efficient, determine the cutting rate into the workpart. (b) If the resistivity of the electrolyte is 160 ohm – mm, determine the working gap. Tool feed Tool holder and

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Joining Processes

It is the process of permanent or temporary joining of two metal pieces with the help of heat or pressure. Two metal parts are assembled by applying an energy source for the formation of a single unit. The obtained joined metals cannot be fragmented easily with the application of any force.