Machining is a process in which a material (often metal) is cut to a desired final shape and size by a controlled material-removal process. The processes that have this common theme are collectively called subtractive manufacturing, in contrast to additive manufacturing, which uses controlled addition of material. Exactly what the “controlled” part of the definition implies can vary, but it usually implies the use of machine tools.

Machining operations usually divide into two categories, distinguished by purpose and cutting conditions:

• Roughing Cuts
• Finishing Cuts

 Product Types :

• Hydraulic Cylinder with Rough Machining and Final Machining
• Piston Rods