materials_1 - BasicMaterials RobShanahan122905 Steel

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Basic Materials Rob Shanahan 12-29-05
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Steel Most common material for student  projects Inexpensive and readily available Easy to join by several different  methods Easy to bend and machine
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Mild steel 1020 cold rolled DOM (Drawn Over  Mandrel) tubing is what is commonly  used for frame and roll cage structure 1020 cold rolled sheet is good for  gussets and mounting tabs Has an UTS of 81,000psi 
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Heat treatment Most of the metals we use can be heat- treated Heat treatment can result in parts that  are stronger, tougher, and lighter than  non-heat-treated parts, if done correctly However, it is easy to do it wrong, so  leave it to experts like BodyCote
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Heat Treatment, cont. For steel, heat treatment is gauged  using the Rockwell ‘C’ scale hardness For Aluminum, the ‘T’ number lets you  know how heat treated the metal is For steel, there are surface hardening  techniques that preserve core ductility As things get harder, they get more  brittle
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Heat treatment, properties
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materials_1 - BasicMaterials RobShanahan122905 Steel

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