Process also known as etching, this is a general term for a removal of material form a part when it is immersed in a corrosive fluid, selective attack by the fluid on different areas of the workpieces surface is controlled by adding and removing layers of a material called masking; it is the oldest of the advanced machining processes and is used for engraving metals and in the production of printed circuit boards and microelectronics devices
A) Electrochemical Machining
B) Chemical Machining
C) Abrasive Water Jet Machining
D) Laser Beam Machining