Improving nanocutting surface quality by force-controlled rolling

Improving nanocutting surface quality by force-controlled rolling
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通过力控滚压提高纳米切割表面质量

DOI:
10.1007/s13204-019-01095-1
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发表时间:
2019-07
影响因子:
--
通讯作者:
Xiaodong Zhang
Xiaodong Zhang
中科院分区:
工程技术4区
文献类型:
--
作者:
Feifei Xu;Wen Huang;Fengzhou Fang;Xiaodong Zhang

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为了实现表面改性过程中轧制力的实时控制,提出了一种结合轧制工具、力传感器和快速工具伺服的力控轧制方法。特别是当表面形状复杂时,轧制力可以根据表面轮廓和轧制路径动态变化,因此,可以通过力控轧制来改善铅等软质材料的可加工性。在软而粘的工件铅被改性后,其表面变得足够硬,以抑制芯片的划痕,堆积边缘的形成,以及在随后的纳米切割过程中工件材料的侧流。铅镜的纳米切割验证了力控轧制方法的有效性。此外,还研究了刀具刃口作用下的侧流区及其在积屑瘤形成后的演化。
Force-controlled rolling method which is a combination of rolling tool, force sensor and fast tool servo is proposed to realize real-time control of rolling force in surface modification process. Especially when the surface is complex, the rolling force can be changed dynamically based on the surface profile and the rolling path. Therefore, the machinability of soft material, such as lead (Pb), are easy to be modified by force-controlled rolling. After the soft and sticky workpiece, lead, is modified, the surface of it becomes hard enough to suppress the scratch of the chips, the formation of built-up edge, and the side flow of the workpiece material at the subsequent nanocutting process. Nanocutting of Pb mirrors validates the effectiveness of the force-controlled rolling method. Besides that, side flow region under the action of the tool edge and its evolution after the formation of build-up edge is investigated.
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