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首页> 外文会议>Powder metallurgy world congress amp; exhibition >Production of PM Wrought Machining Bars and Wires for Machining on Swiss Automatic Lathes
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Production of PM Wrought Machining Bars and Wires for Machining on Swiss Automatic Lathes

机译：在瑞士自动车床上加工PM加工机加工的棒材和线材

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摘要

An industrial project aimed at the replacement of cast-wrought S and Pb containing free-machining steels used in Swiss automatic lathes with Pb-free PM wrought steels to produce high-precision parts for the watch, automotive, medical, dental, and instrumentation industries has now been favorably concluded. Several one metric ton vacuum induction melted heats of a low S, high C 1095 type steel and an AISI 431 type martensitic, nitrogen-alloyed 1.4057 stainless steel have been gas atomized, consolidated via hot isostatic pressing, hot worked and then cold drawn into 0.5 to 5 mm diameter machining bar and wire. The machining of these products was very successful, leading to significantly lower part production cost, closer tolerances (IT 4-5; typically < ± 1-2 urn) and improved finished part surface conditions (Ra < 0.10 urn). These two powder metallurgy steels are now standards for many critical industrial applications. This paper discusses the work performed to develop these products of which patents are pending.
机译：一个工业项目，旨在用无铅PM锻钢代替瑞士自动车床中所用的铸锻S和Pb含自由加工钢，以生产用于钟表，汽车，医疗，牙科和仪器仪表行业的高精度零件现在已经得出了令人满意的结论。将低硫，高碳1095型钢和AISI 431型马氏体氮合金1.4057不锈钢的几吨真空感应熔炼气体雾化，通过热等静压固结，热加工，然后冷拉成0.5直径为5毫米的加工棒和线。这些产品的机加工非常成功，从而大大降低了零件生产成本，更小的公差（IT 4-5；通常<±1-2 um）和改善的成品零件表面条件（Ra <0.10 urn）。现在，这两种粉末冶金钢已经成为许多关键工业应用的标准。本文讨论了开发这些正在申请专利的产品的工作。

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