3427 Fatigue Properties of High-strength Bolt

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Other Title
  • 3427 高強度ボルトの疲労特性に関する研究(G03-2 疲労,G03 材料力学)

Abstract

Investigation is not advancing about the fatigue characteristics of the bolt. Fatigue tests have been performed to evaluate the fatigue strength of high-strength bolt. The specimens prepared what heat-treating after roll-screw-threaded, and which was roll-screw-threaded after heat-treating. The fatigue limit of the specimens of component rolling after heat-treating improved. The main causes are considered to be work hardening and structure miniaturization, fiber flow, and compressive residual stress.

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