Paper Title:
Study on Hardness Depth Variation of Different Grinding Zone in Grind-Hardening
  Abstract

The experiments are performed to study the hardness layer depth at work piece different surface zone in grinding. The result is that hardness layer depth is various at work piece different surface zone. The hardness layer depth is thinner at cutting-in grinding zone, deeper at middle grinding zone and deepest at cutting-off grinding zone. In order to analyze the cause of hardness depth variation, the grinding temperature field is simulated by means of finite element method. From the temperature field and heat flux simulation, the cause of the hardness depth variation is that the grinding heat flux is variable at different grinding zone along the work piece surface in grind-hardening. At cutting-in zone, most of grinding heat flows into the front-below work piece part inverse to table speed, the depth that temperature of surface layer higher than austenite temperature is thin and there is slim martensite transformation layer. At middle zone, the temperature of surface layer is higher than austenite temperature because of grinding heat accumulated in the surface layer, and martensite transformation takes place after cooling. At cutting-off zone, most of grinding heat flows into the below work piece part because of work piece boundary, and hardness depth is deeper than that at middle zone.

  Info
Periodical
Advanced Materials Research (Volumes 24-25)
Edited by
Hang Gao, Zhuji Jin and Yannian Rui
Pages
333-336
DOI
10.4028/www.scientific.net/AMR.24-25.333
Citation
L. Zhang, P. Q. Ge, J. H. Zhang, Q. Zhang, "Study on Hardness Depth Variation of Different Grinding Zone in Grind-Hardening", Advanced Materials Research, Vols. 24-25, pp. 333-336, 2007
Online since
September 2007
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: Ignacy Wierszyłłowski
Abstract:A significant increase in durability of cryogenically treated tools after quenching was reported by a number of publications [1, 2]. As...
415
Authors: Li Yang, Gang Li
Abstract:To improve the wear resistance of ductile cast iron, plasma beam remelt-solidified hardening on the surface is adopted. Scanning electron...
1751
Authors: Christoph Heinze, Arne Kromm, Christopher Schwenk, Thomas Kannengiesser, Michael Rethmeier
Abstract:The development of high-strength structural steels with yield strengths up to 1000 MPa results in the requirement of suitable filler...
85
Authors: Li Yang, Ying Huai Qiang, Fu Shan Chen, Yang Gao, Yun Tian Zhong
Surface Engineering/Coatings
Abstract:To improve wear resistance and service life of boron cast iron cylinder, plasma beam hardening on surface is adopted.Scanning electron...
98
Authors: Regita Bendikiene, Rasa Vitkeviciene
Chapter 3: Materials Characterization
Abstract:The paper presents the results of longitudinal investigations of transformation plasticity, kinetic plasticity, elastic-plastic strain and...
131