Effect of wear progression in an ‘S’-type mixed ceramic tool on machining forces and surface roughness in the turning of hardened AISI 4140 steel

被引：1

作者：

Nicolodi J.H.W. ^{[1
]}

Consalter L.A. ^{[1
]}

Durán O. ^{[2
]}

Souza A.J. ^{[3
]}

机构：

[1] School of Engineering and Architecture, University of Passo Fundo, Passo Fundo

[2] Pontificia Universidad Católica de Valparaíso, Avenida Los Carrera 01567, Quilpué

[3] Department of Mechanical Engineering, Federal University of Rio Grande do Sul, Porto Alegre

来源：

International Journal of Machining and Machinability of Materials | 2019年 / 21卷 / 03期

关键词：

Ceramic tool microgeometry; Cutting forces; Surface roughness; Tool wear; Turning of hardened steel;

D O I：

10.1504/IJMMM.2019.099490

中图分类号：

学科分类号：

摘要：

This study investigates the behaviours of machining forces and the roughness of a workpiece in the dry turning of AISI 4140 steel hardened at 55 HRC due to the wear evolution of a mixed ceramic tool with ‘S’-type blade microgeometry. Six end-of-life tests were performed by combining three levels of cutting speed and two feed rate levels. A constant depth of cut was maintained. According to the results, the highest cutting speed and feed rates had a significant effect on the flank and crater wear of the tool and gradually changed the values of the forces and roughness. The feed rate was the parameter with the highest effect on the output parameters of the process. The crater wear evolution caused a reduction of the machining forces. Meanwhile, flank wear formation promoted an increase in the machining force components. From the point of view of the influence of tool wear processes, and, unlike what happens with flank wear, the crater formation affects favourably the surface roughness, as its evolution promoted the reduction of the Ra values in all cutting conditions. © 2019 Inderscience Enterprises Ltd.

引用

页码：228 / 243

页数：15

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