Effect of friction history of workpiece on friction behaviour in metal forming

Effect of friction history of workpiece on friction behaviour in metal forming
复制标题

工件摩擦历史对金属成形摩擦行为的影响

DOI:
10.1088/1757-899x/544/1/012024
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发表时间:
2019
期刊:
IOP Conf. Series: Materials Science and Engineering
影响因子:
--
通讯作者:
Y. Kozakai
Y. Kozakai
中科院分区:
--
文献类型:
--
作者:
Z.G. Wang;Y. Kozakai

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本文介绍了在不同平均接触压力加载和卸载方式的润滑条件下,试件表面的摩擦历史对侧拉式试验法测量摩擦行为的影响。粘度较低的润滑剂没有润滑作用,摩擦历史对摩擦行为的影响很小。在较高的压力下,粘度较高的润滑剂具有较好的润滑效果,不同摩擦历史的试件产生的摩擦应力略高。结果表明,试件表面的摩擦历史对金属成形摩擦规律的影响可以忽略不计。
This paper describes the influence of friction histories of the specimen surface on frictional behaviour measured by a side-stretching type testing method under lubricated conditions with various loading and unloading patterns of the average contact pressure. The lubricant with lower viscosity has no lubricating effect and the influence of friction histories on frictional behaviour is hardly found. The lubricating effect of the lubricant with higher viscosity is recognized under higher pressures and the specimens with different friction histories give a little higher frictional stress. It is concluded that the influence of the friction history of the specimen surface on the friction law in metal forming is negligibly small.
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