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Laser Cladding of Low Melting Point Alloys

Ellis, M. / Xiao, D. C. / Steen, W. M. / Lee, C. / Watkins, K. G. / Brown, W. P.

Abstract Laser cladding has been used for some years as a commercial hardfacing method [1]. The two main laser cladding (and alloying) techniques are: i) Preplaced powder [2]. Here powder is preplaced on the substrate with a binding agent to “stick” the powder into place until it is melted by the laser. The whole process is normally shrouded in an inert gas such as argon. Unfortunately there is only a small operating region of process parameters where low dilution and a good fusion bond are possible. ii) Blown powder [3]. Blown powder has a much larger operating region than preplaeed powder. Powder is blown directly into a laser generated meltpool as it scans across the surface of the substrate. The powder melts and a clad track is built up. Complete coverage is achieved by overlapping the tracks. .

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Laser Cladding of Low Melting Point Alloys

Ellis, M. / Xiao, D. C. / Steen, W. M. / Lee, C. / Watkins, K. G. / Brown, W. P.

Abstract Laser cladding has been used for some years as a commercial hardfacing method [1]. The two main laser cladding (and alloying) techniques are: i) Preplaced powder [2]. Here powder is preplaced on the substrate with a binding agent to “stick” the powder into place until it is melted by the laser. The whole process is normally shrouded in an inert gas such as argon. Unfortunately there is only a small operating region of process parameters where low dilution and a good fusion bond are possible. ii) Blown powder [3]. Blown powder has a much larger operating region than preplaeed powder. Powder is blown directly into a laser generated meltpool as it scans across the surface of the substrate. The powder melts and a clad track is built up. Complete coverage is achieved by overlapping the tracks. .

Laser Cladding of Low Melting Point Alloys

Ellis, M. / Xiao, D. C. / Steen, W. M. / Lee, C. / Watkins, K. G. / Brown, W. P.

Abstract Laser cladding has been used for some years as a commercial hardfacing method [1]. The two main laser cladding (and alloying) techniques are: i) Preplaced powder [2]. Here powder is preplaced on the substrate with a binding agent to “stick” the powder into place until it is melted by the laser. The whole process is normally shrouded in an inert gas such as argon. Unfortunately there is only a small operating region of process parameters where low dilution and a good fusion bond are possible. ii) Blown powder [3]. Blown powder has a much larger operating region than preplaeed powder. Powder is blown directly into a laser generated meltpool as it scans across the surface of the substrate. The powder melts and a clad track is built up. Complete coverage is achieved by overlapping the tracks. .

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Title:

Laser Cladding of Low Melting Point Alloys

Contributors:

Ellis, M. (author) / Xiao, D. C. (author) / Steen, W. M. (author) / Lee, C. (author) / Watkins, K. G. (author) / Brown, W. P. (author)

Published in:

Laser Processing: Surface Treatment and Film Deposition ; 379-394

NATO ASI Series ; 307

Publication date:

1996-01-01

Size:

16 pages

ISBN:

978-94-009-0197-1 , 978-94-010-6572-6

ISSN:

DOI:

https://doi.org/10.1007/978-94-009-0197-1_18

Type of media:

Article/Chapter (Book)

Type of material:

Electronic Resource

Language:

English

Keywords:

Physics , Physics, general , Surfaces and Interfaces, Thin Films , Optics, Lasers, Photonics, Optical Devices , Characterization and Evaluation of Materials

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