Which material is commonly used for making locating and clamping devices?

Explanation:

• The basic functions of clamps are four-fold.
• They are as follows:
• The workpiece must be held firmly even when the tools/cutters are in operation
• The clamping device should be quick-acting as the loading and unloading time should be as quick as possible
• When subjected to excessive vibration or chatter, the clamps should be firm and should not loosen up
• The clamp should not damage the workpiece
• The clamping is defined as the holding of a workpiece against the cutting forces, while the workpiece presses against the locating surfaces.
• If a number of workpieces are involved, pneumatic or hydraulic clamps are also employed.
• There are following types of clamping devices are used:
  • Two-point clamps
  • Three-point clamps
  • Latch type clamps
  • Button clamps
  • Pressure pads
  • Wedge type edge clamps
  • V clamps
  • Toggle clamps
  • Pneumatic clamps 
  • Hydraulic clamps
• Clamping parts which are subject to wear and tear should be heat treated so as to withstand cyclic operations.
• The material of the clamps should be so selected as t have properties like hardness, toughness and strength.
• Therefore, High carbon steel or cast iron is commonly used for making locating and clamping devices.