hardening, tempering, annealing & punching

• hardening and tempering Process

  • The high speed steel is heated until red hot the cooled quickly.
  • The tool is then tempered by heating the tip slowly until it turns blue.
  • The heat is then removed.

  
• Uses of hardeing and tempering

  • Used to create tools such as screwdrivers, woodwork lathe tools and axes.
• annealing Process

  • The chosen metal is heated and then cooled slowly to make it softer and easier to work with.

  
• annealing Uses

  • Wire, creating sheet steel.
• punching Process

  • A steel punch is forced through a piece of sheet metal to create an identically sized hole in the sheet.

  
• punching Uses

  • To create holes to accommodate screws, bolts and other fixings.

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