10-6 A helical compression spring is to be made of oil-tempered wire of 4-mm diameter with a spring index of C= 10. The

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10 6 A Helical Compression Spring Is To Be Made Of Oil Tempered Wire Of 4 Mm Diameter With A Spring Index Of C 10 The 1 (100.57 KiB) Viewed 40 times

10-6 A helical compression spring is to be made of oil-tempered wire of 4-mm diameter with a spring index of C= 10. The spring is to operate inside a hole, so buckling is not a problem and the ends can be left plain. The free length of the spring should be 80 mm. A force of 50 N should deflect the spring 15 mm. (a) Determine the spring rate. k-3.333 N/mm (b) Determine the minimum hole diameter for the spring to operate in. OD=44 mm (c) Determine the total number of coils needed. N=11.6 coils (d) Determine the solid length. L-50.4 mm (e) Determine a static factor of safety based on the yielding of the spring if it is compressed to its solid length. n.-4.02