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热处理工艺对驱动轮轴静扭矩的影响研究

Influence of Heat Treatment Process on Static Torque of Drive Axle
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摘要 对S38MnSiV驱动轮工艺轴的3种结构形式(光轴工艺轴,带齿条、键槽工艺轴,去齿条、键槽工艺轴),在JB-50型静扭试验机上进行驱动轮工艺轴静扭试验.试验得出:光轴工艺轴的扭矩水平最高,去齿条、键槽工艺轴的扭矩水平次之,带齿条、键槽工艺轴的扭矩水平最低.对引起扭矩变化的热处理工艺分析可知,零件存在淬火过渡区时扭矩水平急剧下降,且其扭矩水平低于未经表面淬火的零件.表面淬火和回火能够减缓尖角效应,而喷丸处理降低了表面压应力,致使抛丸零件的扭矩水平低于低温回火的零件. Through three types of S38MnSiV Technolo gy: optical axis shaft driving wheel shaft with keyway process rack, shaft and rack, process to process of the driving wheel shaft keyway, static torsion test process of shaft in JB-50 type static torsion testing machine is carried out. According to the test data, the torque level of the axis of the optical axis is the highest, the torque of the rack and keyway process shaft is the second, and the torque of the process shaft with rack and keyway is lowest. The heat treatment process causing torqtle is analyzed. The quenching zone ex ists in parts, the torque level drops rapidly, and the torque level is lower than that without surface quenching. Surface hardening and tempering can mitigate sharp corner effect. Shot peening reduces the surface compressive stress which results in lower torque levels of shot peening parts than low temperature tempered parts.
作者 张晓伟 张沈洁 ZHANG Xiao-wei ZHANG Shen-iie(SIPPR Engineering Group Co. , Ltd, Zhengzhou 45007, China Technology and Material Research Institute First Tractor Co. , Ltd, Luoyang 471004, China)
出处 《成组技术与生产现代化》 2017年第2期54-58,共5页 Group Technology & Production Modernization
关键词 驱动轮工艺轴 静扭矩 淬火过渡区 回火 technological axis of driving wheel static torque quenching transition zone tempering
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