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DEVELOPMENT OF NET-SHAPING TECHNOLOGY FOR THE UNDERCUT STEM OF THE HIGH-STRENGTH BOLT

机译:高强度螺栓防脱杆网成形技术的发展

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摘要

A type of bolt that has an undercut in its stem portion is used for fastening engine pats. In the past, the range in which the stem could be net-shaped was limited. We recently developed a "spiral filling upsetting method "that has completely eliminated the machining process while expanding the range in which the net-shaping process can be applied. We focused on the three-dimensional spiral buckling characteristic, which is not ordinarily utilized in plasticity processing, and effectively applied it on this technology.
机译:在其杆部具有底切的一种螺栓用于固定发动机踏板。过去,杆可以呈网状的范围受到限制。我们最近开发了一种“螺旋填充filling粗方法”,该方法完全消除了加工过程,同时扩大了可应用网状成形过程的范围。我们着眼于塑性加工中通常不使用的三维螺旋屈曲特性,并将其有效地应用于该技术。

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