machining

machining

1. milling machine

   • slab mill
     • used to machine a large surface quickly and create a flat surface finish
   • sitting saw
     • used to cut narrow slots
   • side and face cutter
     • has cutting edges on both sides
   • gang milling
     • multiple cutters on same arbor cutting the periphery of the tools

2. grinding wheel

   • loading and glazing
     • loading
       • build up of particles on the wheel
     • glazing
       • the wheel of the grinding wheel loses its edge
   • used for grinding metal

3. lathe

   • for turning metal on the lathe using cutting tools.
   • cutting speed : higher cutting speed produce smoother surface. Feed: slower feeds produce a smoother surface. Tool condition: damaged cutting tools give a poor surface finish. Tool shape: rounded nose tools give smoother finish. Lubricating Fluids: cutting area will improve surface finish
   • safety features: