0
Research Papers

An Investigation of the Grinding-Hardening Induced by Traverse Cylindrical Grinding

[+] Author and Article Information
Thai Nguyen

School of Mechanical and
Manufacturing Engineering,
The University of New South Wales, UNSW,
Kensington, NSW 2052, Australia
e-mail: thai.h.nguyen@gmail.com

Mei Liu

School of Mechanical and
Manufacturing Engineering,
The University of New South Wales, UNSW,
Kensington, NSW 2052, Australia
e-mail: mei.liu@unsw.edu.au

Liangchi Zhang

School of Mechanical and
Manufacturing Engineering,
The University of New South Wales, UNSW,
Kensington, NSW 2052, Australia
e-mail: liangchi.zhang@unsw.edu.au

Qiong Wu

Equipment Research Department,
Research Institute,
Baoshan Iron & Steel Co., Ltd.,
Fujin Road,
Baoshan, Shanghai 201900, China
e-mail: wuqiong@baosteel.com

Dale Sun

Equipment Research Department,
Research Institute,
Baoshan Iron & Steel Co., Ltd.,
Fujin Road,
Baoshan, Shanghai 201900, China
e-mail: sundl@baosteel.com

1Corresponding authors.

Contributed by the Manufacturing Engineering Division of ASME for publication in the JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING. Manuscript received September 13, 2013; final manuscript received July 17, 2014; published online August 6, 2014. Assoc. Editor: Y. B. Guo.

J. Manuf. Sci. Eng 136(5), 051008 (Aug 06, 2014) (10 pages) Paper No: MANU-13-1342; doi: 10.1115/1.4028058 History: Received September 13, 2013; Revised July 17, 2014

This study investigates the formation of the layer hardened on a cylindrical workpiece by grinding-hardening using the traverse grinding method. A finite element heat transfer model, that took into account the helical trajectory of the of the grinding heat source movement, was developed. The hardened layer was found featuring a wavy profile as a result of the heat conduction from an adiabatic plane crossing the middle of the trajectory pitch. The accumulation of the grinding heat within a small pitch can lead to the welding of the molten material with the base material. Enlarging the pitch by reducing the workpiece speed will increase the time of heating, allowing the heat to penetrate deeper and to expand wider in the workpiece, thus thickening the hardened layer.

FIGURES IN THIS ARTICLE
<>
Copyright © 2014 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Fig. 1

Heat conduction in a workpiece during cylindrical traverse grinding

Grahic Jump Location
Fig. 2

Segments on the circumferential surface of the cylinder

Grahic Jump Location
Fig. 3

Finite element meshing

Grahic Jump Location
Fig. 4

Contact width in traverse cylindrical grinding

Grahic Jump Location
Fig. 5

Flow chart of the calculation Q·(n,t)

Grahic Jump Location
Fig. 6

Thermal properties of workpiece material, EN26 [27]

Grahic Jump Location
Fig. 12

Chips produced from grinding-hardening at (ωw = 10 rpm, vz = 20 mm/min, a = 300 μm). (a) A melted chip fragment. (b) Curly chips.

Grahic Jump Location
Fig. 11

The shape of the hardened layer revealed by experiments

Grahic Jump Location
Fig. 10

Model prediction of the shape of the hardened layer in the workpieces subsurface

Grahic Jump Location
Fig. 9

Temperature field in the cross section A–A of the components ground at different operating parameters (ωw, vz, a)

Grahic Jump Location
Fig. 8

The temperature history at θ = 0.43 × 2π rad, z = 0.5 mm, and at different subsurface distances, Δ of a workpiece ground at (ωw = 20 rpm, vz = 20 mm/min and a = 300 μm)

Grahic Jump Location
Fig. 7

Temperature field in the workpiece (ωw = 5 rpm, vz = 15 mm/min, a = 400 μm)

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In