Effects of helical groove on coil spring on fatigue life
Effects of helical groove on coil spring on fatigue life
(OP)
Hello all. I've got a question and I'm hoping that someone can point me in the right direction.
I've got a coil spring (17-7PH ~.5"diameter wire/bar) that has small grooves (~.015" deep) along the coils. These grooves are apparently the result of winding the spring. I'm concerened about the effects these grooves have on the fatigue strength of the spring. Has anybody ever dealed with this before and found information regarding this subject? Also, the surface finish is also in question. Is there any literature regarding levels of surface finish and fatigue life? (16mu, 32, 125, etc.) I'd appreciate any input.
I've got a coil spring (17-7PH ~.5"diameter wire/bar) that has small grooves (~.015" deep) along the coils. These grooves are apparently the result of winding the spring. I'm concerened about the effects these grooves have on the fatigue strength of the spring. Has anybody ever dealed with this before and found information regarding this subject? Also, the surface finish is also in question. Is there any literature regarding levels of surface finish and fatigue life? (16mu, 32, 125, etc.) I'd appreciate any input.





RE: Effects of helical groove on coil spring on fatigue life
Mike Halloran
Pembroke Pines, FL, USA
RE: Effects of helical groove on coil spring on fatigue life
RE: Effects of helical groove on coil spring on fatigue life
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RE: Effects of helical groove on coil spring on fatigue life
RE: Effects of helical groove on coil spring on fatigue life