A particular machine requires a helical compression spring, having ends squared and ground, to support an essentially static load of 500 lb. The spring constant is to be 200 lb/in., and the stress at the design load is to be 80 ksi. The clash allowance is to be 0.10 in. The dimensions of related parts establishes that D should be 3 in. Determine N, d, and Lf .
Review the web site https://www.acxesspring.com.
(a) List the common spring materials presented.
(b) Which materials are listed as highly susceptible to hydrogen embrittlement?
(c) What processes are stated as causing hydrogen embrittlement?