[1] Zhang Hui, Ling Weiye, Jiang Shouwei,. Influence of laser treatment on the fatigue of notched bar [J]. Journal of Southeast University (English Edition), 2003, 19 (2): 142-145. [doi:10.3969/j.issn.1003-7985.2003.02.009]

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Influence of laser treatment on the fatigue of notched bar()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

19

Issue:

2003 2

Page:

142-145

Research Field:

Mathematics, Physics, Mechanics

Publishing date:

2003-06-30

Info

Title:

Influence of laser treatment on the fatigue of notched bar

Author(s):

Zhang Hui¹;  Ling Weiye²;  Jiang Shouwei¹

¹School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200030, China
²Department of Mechanical Engineering, Southeast University, Nanjing 210096, China

Keywords:

laser treatment;  notch;  extremely low cycle fatigue;  hardened area

PACS:

O346.2

DOI:

10.3969/j.issn.1003-7985.2003.02.009

Abstract:

Fatigue cutting is a new approach for separating material. Man-made fatigue can be realized by applying a rotating bending load to a notched bar. To better utilize the new method, laser treatment is adopted in this study. After laser radiation at the notch root, the fatigue cycle of the bar drops dramatically. Based on the experimental result, we draw the conclusion that the fatigue of the bar is influenced by the shape of the hardened area. A hardened area that has a small axial dimension and a relatively large radial dimension facilitates the fatigue. The desirable hardened area can be obtained by controlling the laser treatment parameters.

References:

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Memo

Memo:

Biographies: Zhang Hui(1974—), male, doctor; Jiang Shouwei(corresponding author), male, professor, jiang650@sina.com.

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