论文信息 - The effect of laser pulse width on multiple-layer 316L steel clad microstructure and surface finish

The effect of laser pulse width on multiple-layer 316L steel clad microstructure and surface finish

Multiple layer laser cladding is a flexible rapid prototyping and tooling process that allows a fully dense wall or surface to be fabricated from the consolidation of a metal powder. The microstructure and resultant physical properties of the material are determined by process parameters, one of which is the pulse width of the laser used. In this work, a CO2 laser, operating at different pulse widths and in continuous mode is used to assess this effect. Microstructural characterisation of multiple layers of consolidated 316L steel is carried out and the dimensions, surface roughness and hardness of the built samples compared with the generating pulse widths. (C) 2002 Elsevier Science B.V. All rights reserved.

Andrew J. Pinkerton | Lin Li | A. Pinkerton | Lin Li

[1] Lin Li,et al. The effect of laser peak power and pulse width on the hole geometry repeatability in laser percussion drilling , 2001 .

[2] M. L. Griffith,et al. Understanding thermal behavior in the LENS process , 1999 .

[3] John O. Milewski,et al. Laser Powder Deposition of a Near Net Shape Injection Mold Core — A Case Study , 2000 .

[4] Shang-Liang Chen,et al. Energy analysis and quality evaluation of pulsed neodymium-doped yttrium aluminium garnet laser cladding ceramic-metal composite coating on aluminium alloys , 1999 .

[5] Zhang Li,et al. Laser welding techniques for titanium alloy sheet , 1997 .

[6] L. Xue,et al. Free-form laser consolidation for producing metallurgically sound and functional components , 2000 .

[7] Dominique Grevey,et al. Cross-section modeling of pulsed Nd:YAG laser cladding , 1994, Other Conferences.

[8] Lin Li,et al. Characteristics of spatter formation under the effects of different laser parameters during laser drilling , 2001 .

[9] Francis H. Froes,et al. Producing titanium aerospace components from powder using laser forming , 2000 .

[10] Dieter Schuoecker,et al. Laser-assisted generating of three-dimensional parts by the blown powder process , 2001, International Symposium on High Power Laser Systems and Applications.