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MD-8 Spring design

1 August 15, 2007 August 15, 2007118. 8. Spring designSpring designObjectivesObjectives Identify, describe, and understand principles of several types oIdentify, describe, and understand principles of several types of springs f springs including helical compression springs, helical extension springsincluding helical compression springs, helical extension springs, torsion , torsion tubes, and leaf Spring , and leaf Spring systems. design and analyze helical compression springs, including design and analyze helical compression springs, including compatibility with allowable with allowable stresses. Develop necessary analytical tools for Spring design .

4 August 15, 2007 19 Pitch Number of coils per inch of length m 1 πD P λ=tan− August 15, 2007 20 Spring materials Steel Most common Phosphor bronze Cold wound for small size (<5/16 in) Wound from hot rolled bar August 15, 2007 21 Types of Materials Hard drawn high carbon steel Oil tempered high carbon steel Stainless steel Light-duty springs ...

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