Traditional Machining Processes

Traditional Machining Processes

Turning

• Definition: A machining process where a cutting tool moves in a linear motion along the length of a rotating workpiece.
• Operations:
  • External turning: reducing diameter of a cylindrical workpiece
  • Internal turning: boring a hole in a workpiece
  • Facing: creating a flat surface on the end of a cylindrical workpiece
• Tools: single-point cutting tools, such as lathe tools
• Advantages:
  • High accuracy and precision
  • Can produce complex shapes and profiles
  • Wide range of materials can be machined

Milling

• Definition: A machining process where a rotating cutting tool moves in a linear motion along a stationary workpiece.
• Operations:
  • Peripheral milling: cutting along the periphery of a workpiece
  • Face milling: cutting a flat surface on a workpiece
  • End milling: cutting a pocket or slot in a workpiece
• Tools: multi-point cutting tools, such as milling cutters
• Advantages:
  • Can produce complex shapes and profiles
  • High material removal rate
  • Wide range of materials can be machined

Drilling

• Definition: A machining process where a rotating cutting tool moves in a linear motion along a stationary workpiece to create a hole.
• Operations:
  • Drill press: drilling a hole in a workpiece
  • Counterboring: enlarging a hole in a workpiece
  • Countersinking: creating a conical hole in a workpiece
• Tools: twist drills, core drills, and counterbores
• Advantages:
  • High accuracy and precision
  • Can produce holes of various sizes and shapes
  • Wide range of materials can be machined