Paper Title:
Microscopic Examination of Primary Shear Zone in High Speed Machining of Hardened High Strength Steel
  Abstract

The microstructure observation and microhardness measurement were performed on the adiabatic shear bands in primary shear zone in the serrated chips formed during high speed machining of two tempering hardness of hardened high strength steel under different cutting speeds by optical microscope, SEM, TEM and microhardness tester. The investigation results show that two types of adiabatic shear bands are formed as cutting speed increases. One is deformed band with heavy elongated microstructures generated under lower cutting speed, another is transformed band with fine grains under higher cutting speed. The increase of the cutting speed little influences on the microhardness in the transformed bands, and the microhardness in deformed band results from strain hardening, whereas transformation hardening leads to very high microhardness in transformed band.

  Info
Periodical
Advanced Materials Research (Volumes 97-101)
Edited by
Zhengyi Jiang and Chunliang Zhang
Pages
1887-1890
DOI
10.4028/www.scientific.net/AMR.97-101.1887
Citation
C. Z. Duan, M. J. Wang, T. Dou, "Microscopic Examination of Primary Shear Zone in High Speed Machining of Hardened High Strength Steel", Advanced Materials Research, Vols. 97-101, pp. 1887-1890, 2010
Online since
March 2010
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: Chun Zheng Duan, Liang Chi Zhang, Hai Yang Yu, Min Jie Wang
Abstract:Adiabatic shear banding during high speed machining is important to understand material removal mechanisms. This paper investigates the...
321
Authors: Chun Zheng Duan, Zhao Xi Wang, Min Jie Wang, Wei Sen Kong
Abstract:The component distribution of adiabatic shear banding during high speed cutting(HSC) is important to understand the phase transformation...
1482
Authors: Chun Zheng Duan, Wei Sen Kong, Zhao Xi Wang, Min Jie Wang
Abstract:To study the microstructure of white band is helpful for revealing formation mechanism of serrated chip. This paper investigates the...
1292
Authors: Guo He Li, Bing Yan, Yu Jun Cai
Chapter 7: Machining
Abstract:Orthogonal cutting experiments of hardness AISI1045 steel( HRC45) are performed. The change of chip formation and cutting force with cutting...
1915
Authors: Bing Wang, Zhan Qiang Liu, Qi Biao Yang
Chapter 5: Advances in Machining Technologies
Abstract:Analyzing mechanism of the chip formation is a significant way to understand the metal cutting process better. The characterization of...
484