The effect of shot peening on the contact fatigue performance of C40 steel gears after laser surface melting
You Lv,
Bo Cui,
Zhaolong Sun
et al.
Abstract:In this paper, shot peening (SP) was employed as a post-processing technique for the laser surface melted (LSMed) gear. The aim was to improve the contact fatigue performance of laser surface melting+shot peened (LSMSPed) gears. The microstructure, surface roughness, residual stress, microhardness of C40 steel gears before and after SP treatment were characterized using scanning electron microscopy, X-ray diffraction stress analyzer, contour measuring instrument, and hardness tester. Fatigue test of gear was c… Show more
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