Experimental evaluation of a WC–Co alloy layer formation process by multibeam-type laser metal deposition with blue diode lasers
Source abstract
Abstract
A tungsten carbide–cobalt (WC–Co) composite layer was formed on a stainless-steel type 304 (SS304) substrate using multibeam laser metal deposition (LMD) with blue diode lasers. This paper aims to provide WC–Co layer formation with low porosity and high layer formation efficiency by using the multibeam LMD process. The effects of process parameters such as laser output power and powder feed rate are tied together to explain the geometry of the melt layer as well as the fraction of the laser energy used for melting a material. The experimental results show that the porosity rate and layer formation efficiency were recorded at 0.3% and 0.0042 mm3/J, respectively, at the laser output power of 180 W and a powder feed rate of 75 mg/s. It was revealed that layer formation efficiency was dependent on the laser output power.
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Research context
OpenAlex topics: Advanced materials and composites · Additive Manufacturing Materials and Processes · High Entropy Alloys Studies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Graduate School of Engineering, Osaka University 1 , Suita, Osaka 565-0871, Japan
Graduate School of Engineering, Osaka Sangyo University 2 , Daito, Osaka 574-8530, Japan
Joining and Welding Research Institute, Osaka University 3 , Ibaraki, Osaka 567-0047, Japan
National Institute of Technology, Ishikawa College 4 , Kahoku, Ishikawa 929-0392, Japan
Industrial Research Institute of Ishikawa Machinery and Material Division 5 , Kanazawa, Ishikawa 920-8203, Japan
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