Paper Title:
Study on the Orthogonal Cutting Process of Al7050T7451 with Uncoated and Coated Tools
  Abstract

Tool wear during high speed machining process plays an important role in machining cost and efficiency. The purpose of this study is to examine the impact of tribological properties of coatings on cutting performance. Finite element methods (FEM) were used to model the effect of coated and uncoated cutting tools (K10) on the machinability of the aluminum alloy 7050T7451. Uncoated, Single coated, such as TiC, TiN and Al2O3 and multi-coated tool were studied. All finite element models were assumed to be plane strain. To achieve constitutive model of Al7050T7451 under conditions of machining that high strain rate, high strain and high temperature occur, high speed impact experiment and material drawing experiment were done. Comparison of FEM results shows that the highest temperatures in tools, the temperature change rates of different tools from surface to its bulk material, and the temperatures in chips are changed greatly. It also shows that the cutting temperature of coated tool is lower than uncoated tools, but cutting forces change very little. All these results show that coatings can be used to reduce adhesion between a tool and a workpiece material. The wear resistance of coated tool can be improved effectively and tool life is increased correspondingly.

  Info
Periodical
Key Engineering Materials (Volumes 392-394)
Edited by
Guanglin Wang, Huifeng Wang and Jun Liu
Pages
990-995
DOI
10.4028/www.scientific.net/KEM.392-394.990
Citation
H. Y. Dong, P. J. Huang, Y.B. Bi, "Study on the Orthogonal Cutting Process of Al7050T7451 with Uncoated and Coated Tools", Key Engineering Materials, Vols. 392-394, pp. 990-995, 2009
Online since
October 2008
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Tadahiro Wada
Abstract:In cutting aluminum alloy 6061, continuous chips have a negative influence on the machining operation. Usually, Pb is added in order to break...
368
Authors: Y.J. Wang, Ming Zhou, S.N. Huang, Y.J. Zhang
Abstract:This paper presents an experimental study in high speed milling of metal matrix composites (MMCs). Machining tests were carried out on a high...
200
Authors: Jian Hua Liu, Yi Hua Feng, Lei Shi, Qing Yu Zhang
Abstract:Arc ion plating technique PVD ZrN coatings were deposited on YT15 cemented carbide. Microstructural and fundamental properties of the ZrN...
1089
Authors: Tadahiro Wada, Koji Iwamoto, Hiroaki Sugita
Chapter 1: Material Science and Engineering
Abstract:In cutting aluminum alloy 6061, continuous chips have a negative influence on the machining operation. Usually, Pb is added in order to break...
74
Authors: Hui Cun Shen, B.G. Yang, J.F. Liang
Chapter 2: Advanced Material and Manufacturing Technologies
Abstract:Cutting temperature is the main factor to be considered in the select of coated cutting tools, so the study on the temperature of coated...
153