PCD 微细铣磨刀具切削力建模与加工性能研究

Translated title of the contribution: Research on Cutting Force Modeling and Cutting Performance of PCD Micro Milling-grinding Combined Machining Tool

Yuchao Du, Zhiqiang Liang*, Fei Wang, Juan Li, Yuehong Liu, Xu Zhao, Zhipeng Su, Yue Ma, Rui Chen, Xibin Wang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

A PCD micro milling-grinding combined machining tool structure with 0° side edge rake angle is proposed. The simulation model of single-edge and single-abrasive orthogonal cutting is constructed, and the mechanism of milling-grinding combined machining is analyzed. A cutting force model considering cutting edge shear force and tool flank face grinding force is constructed based on the micro-element method. According to the relationship between cutting tool structure and cutting parameters under up-milling and down-milling, the expression of cutting angle and the contact between cutting edge and workpiece are determined. On this basis, the prediction of the instantaneous cutting force of the mill is realized by fitting the shear force coefficient and grinding force coefficient through experiments, and cutting force model verification experiments are carried out on titanium alloy TC4. The experimental results show that the established cutting force model can effectively predict the cutting force in milling-grinding combined machining. The milling-grinding combined machining tool performance tests are further carried out on cemented carbide workpiece. The results show that compared with conventional PCD micro end mill, the developed PCD milling-grinding combined machining tool can effectively improve machining quality.

Translated title of the contributionResearch on Cutting Force Modeling and Cutting Performance of PCD Micro Milling-grinding Combined Machining Tool
Original languageChinese (Traditional)
Pages (from-to)298-309
Number of pages12
JournalJixie Gongcheng Xuebao/Chinese Journal of Mechanical Engineering
Volume60
Issue number19
DOIs
Publication statusPublished - 5 Oct 2024

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