Manufacturing Processes

• High-pressure die casting

  a process wherein molten metal is forced, under pressure, into a sealed mould cavity

   
• Sand casting

  • a manufacturing process in which molten metal is poured into a sand mold containing a hollow cavity of the desired shape.
• Injection moulding

  • a method to obtain molded products by injecting plastic materials molten by heat into a mold, and then cooling and solidifying them
• • Rivets are used to join metal, plastics and plywood
  • Pop rivets are used where there is only access to one side of the work
• Brazing

  Used for joining steel by melting a brass rod on the hot steel. As the brass melts, it forms a joint. Brazing is a slow and safe way to learn about joining metal with heat.
• Normalising

  • a process in which a metal is heated to a temperature below its melting point and allowed to cool in air in order to make it more ductile.
• Annealing

  • a heat treatment that alters the physical properties of a material to increase its ductility and reduce its hardness
• Hardening

  • the process of making metal hard by heating and quickly cooling it in oil or water
• Quenching

  the process of rapidly cooling a hot metal to lock the atoms in place
• Dip coating

  • Heated metal is dipped into powdered or a liquid polymer so that a coating of the polymer is bonded to the metal
• Electroplating

  • Using electrolysis to put a thin layer of metal on an object
• Galvanising

  • the process of applying a protective zinc coating to iron or steel, to prevent rusting
• Polishing

  • the process of creating a smooth and shiny surface by rubbing it or by applying a chemical treatment
• Milling

  • the process of machining using rotary cutters to remove material by advancing a cutter into a workpiece