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Laser Surface Engineering by Jonathan R. Lawrence, David Waugh

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19

Laser-guided discharge surface texturing

Z.-T. Wang; M.-J. Yang    Chinese Academy of Sciences, Shanghai, China

Abstract

This chapter introduces a new technique: laser-guided discharge texturing (LGDT). In this technique, a quasi-continuous Nd:YAG laser pulse is focused on the roller surface to trigger and guide the arc discharge in the electrode gap, and then to texture the roller surface. The mechanism of using a quasi-continuous Nd:YAG laser pulse to control the discharge is discussed, and the processing method of LGDT is studied. The three-dimensional (3-D) surface profiles and microstructures of the textured craters made by LGDT are analyzed. Finally, the characters of three surface texturing techniques, including Nd:YAG laser texturing ...

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