Prediction of Cutting Forces for Chamfered Inserts Based on Modified Slip-line Field Model

被引：0

作者：

Zhuang K. ^{[1
,2
]}

Hu C. ^{[1
,2
]}

Dai X. ^{[3
]}

Pu D. ^{[4
]}

Ding H. ^{[3
]}

机构：

[1] School of Mechanical and Electronic Engineering, Wuhan University of Technology, Wuhan

[2] Hubei Digital Manufacturing Key Laboratory, Wuhan University of Technology, Wuhan

[3] State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan

[4] Wuxi Research Institute of Huazhong University of Science and Technology, Wuxi, 214000, Jiangsu

来源：

Zhongguo Jixie Gongcheng/China Mechanical Engineering | 2021年 / 32卷 / 08期

关键词：

Chamfered edge; Cutting force prediction; Dead metal zone; Slip-line field;

D O I：

10.3969/j.issn.1004-132X.2021.08.002

中图分类号：

学科分类号：

摘要：

Based on the material plasticity slip-line theory and flow state analysis ahead of tool edge, a modified slip-line field model was proposed considering material stagnation zone (dead metal zone), and pre-cut region in negative-rake-angle cutting processes with chamfered insert. Furthermore, an iterative sollution to material shear flow stress and edge front cutting geometry was suggested. The relationships of chamfered edge geometry and slip-line field geometry were disclosed. An analytical approach to the orthogonal cutting force prediction method was developed by applying the presented model to the cutting processes with chamfered insert. Verifications including finite element simulations and orthogonal cutting trials were carried out for the modified slip-line field model and prediction method of cutting forces. Average errors are all less than 10% in comparisons of predictions and simulations as well as measurements. Results provide references for investigating the influences of edge geometries on material flow characteristics and tool cutting performances. © 2021, China Mechanical Engineering Magazine Office. All right reserved.

引用

页码：890 / 900

页数：10

共 33 条

[1] WU Benxiang, CHEN Zhengwei, HUANG Longrong, Et al., State of Art in Cutting Tool Edge Preparation Technologies, Tool Engineering, 53, 1, pp. 8-14, (2019)
[2] CHOUDHURY I A, SEE N L, ZUKHAIRI M., Machining with Chamfered Tools, Journal of Materials Processing Technology, 170, 1, pp. 115-120, (2005)
[3] JACOBSON S, WALLEN P., A New Classification System for Dead Zones in Metal Cutting, International Journal of Machine Tools and Manufacturing, 28, 4, pp. 529-538, (1988)
[4] WAN Lei, Numerical Analysis of Metal Cutting Process, pp. 29-53, (2016)
[5] USUI E, KIKUCHI K, HOSHI K., The Theory of Plasticity Applied to Machining with Cut-away Tools, Journal for Engineering for Industry, 86, 2, pp. 95-104, (1964)
[6] LEE E, SHAFFER B W., The Theory of Plasticity Applied to a Problem of Machining, Journal of Applied Mechanics, 18, (1951)
[7] SHI Yanhong, ZHAO Xianfeng, JIANG Xueting, Current Research on the Application of the Slip Line Field Theory in the Orthogonal Cutting Process, Journal of South China University of Technology (Natural Science Edition), 47, 1, pp. 14-31, (2019)
[8] ZHANG H, LIU P, HU R., A Three-zone Model and Solution of Shear Angle in Orthogonal Machining, Wear, 143, 1, pp. 29-43, (1991)
[9] FANG N, DEWHURST P., Slip-line Modeling of Build-up Edge Formation in Machining, International Journal of Mechanical Sciences, 47, 4, pp. 1079-1098, (2005)
[10] KIYOTA H, ITOIGAWA F, ENDO S, Et al., Analytical Approach for Optimization of Chamfered Cutting Tool Preparation Considering Build-up Edge Extrusion Behavior, International Journal of Automotive Technology, 7, 3, pp. 329-336, (2013)

← 1 2 3 4 →