论文信息 - Optical Diagnostics of Deposition of Metal Matrix Composites by Laser Cladding

Optical Diagnostics of Deposition of Metal Matrix Composites by Laser Cladding

Abstract A multi-wavelengths pyrometer and an infrared camera are applied with Trumpf DMD 505 industrial-scale laser cladding machine for optical diagnostics. Brightness temperature of the molten pool is measured with the variation of the main laser cladding parameters such as scanning speed, laser power, powder feed rate and powder material composition. Black body model Micron M390 is applied to transform the raw signal from the camera and the pyrometer to the brightness temperature.

[1] Reinhart Poprawe,et al. Identification and qualification of temperature signal for monitoring and control in laser cladding , 2006 .

[2] W. Steen. Laser Material Processing , 1991 .

[3] M. Doubenskaia,et al. Optical monitoring of Nd : YAG laser cladding , 2004 .

[4] Andrzej Rosochowski,et al. Rapid tooling: the state of the art , 2000 .

[5] V. Ocelík,et al. Analysis of coaxial laser cladding processing conditions , 2005 .

[6] Jyoti Mazumder,et al. Direct metal deposition , 2009 .

[7] Yiwang Chen,et al. Microstructure of laser clad TiC/NiAl-Ni3(Al, Ti, C) wear-resistant intermetallic matrix composite coatings , 2003 .

[8] J. Mazumder,et al. The direct metal deposition of H13 tool steel for 3-D components , 1997 .

[9] Jyoti Mazumder,et al. Transport phenomena during direct metal deposition , 2007 .

[10] B. S. Murty. Advanced Materials and Processes , 2010 .

[11] W. M. Steen,et al. An in-process method for the inverse estimation of the powder catchment efficiency during laser cladding , 1998 .

[12] Bengt Lennartson,et al. Increased stability in laser metal wire deposition through feedback from optical measurements , 2010 .

[13] S. Tsai,et al. Composite Materials: Design and Applications , 2002 .

[14] I. Smurov,et al. Theoretical and Experimental Investigation of Gas Flows, Powder Transport and Heating in Coaxial Laser Direct Metal Deposition (DMD) Process , 2011 .