汽车胀断连杆用挤压丝锥的优化设计与应用

Tool Engineering(2019)

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Abstract
为有效解决挤压丝锥在加工高强度非调质钢C70S6连杆挤压螺纹时易出现粘屑、攻丝扭矩大、螺纹孔粗糙度差和丝锥寿命短等问题,对挤压丝锥的关键结构参数和加工工艺进行优化,并用优化后的挤压丝锥进行切削寿命对比试验.结果 表明,该优化设计可提高挤压丝锥加工C70S6材料连杆螺纹的使用寿命和提升产品质量.
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