摘要
Laser additive manufacturing(LAM) of tungsten carbide metal matrix composites(MMCs) has been evaluated for surface modification of hot die forming tools,cutting edges,glass tooling,extrusion mandrels,and other abrasive wear applications.This work focuses on transitions from tool steels to MMCs through a single pass laser powder deposition operation.Issues related to the application of various metal powders and carbides used include surface hardness,porosity,cracking,and dilution.These issues along with factory results that were obtained during this project are discussed.
Laser additive manufacturing （LAM） of tungsten carbide metal matrix composites （MMCs） has been evaluated for surface modification of hot die forming tools,cutting edges,glass tooling,extrusion mandrels,and other abrasive wear applications. This work focuses on transitions from tool steels to MMCs through a single pass laser powder deposition operation. Issues related to the application of various metal powders and carbides used include surface hardness,porosity,cracking,and dilution. These issues along with factory results that were obtained during this project are discussed.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2009年第12期3245-3250,共6页
Chinese Journal of Lasers
基金
Supported by the U.S. Department of Energy(DOE),Office of Industrial Technology under contract DE-PS0703ID14425:Industrial Materials for the Future Program and through contracts with Spirex Corporation and Owens-Illinois
