Laser Beam Cladding of Stellite on Cast Iron
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- Kataoka Yoshihiro
- 職業能力開発大学校生産機械工学科 工博
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- Yoshinaka Tatsuya
- 同研究課程工学研究科機械専攻
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- Miyazaki Toshiyuki
- 千葉工業大学精密機械工学科 工博
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- Umeda Takateru
- 東京大学大学院工学系研究科金属工学専攻 工博
Bibliographic Information
- Other Title
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- 鋳鉄へのステライトのレーザ肉盛り
- チュウテツ エ ノ ステライト ノ レーザ ニクモリ
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Abstract
CO2 laser beam was applied to the cladding of stellite on cast iron by using beam scanner. The hardness and microstructure of clad layer were investigated by changing the laser power and number of clad layer. The average hardness of clad layer obtained was 480∼510 HV 0.1, when the conditions were laser power from 2200 W to 2600 W, clad number from one layer to four layers (thickness of clad layer ; 0.9∼4.7mm), cladding speed of 400mm/min, defocusing distance of 30mm, oscillated width of 7mm and argon as the shielding gas. The microstructure of clad layer was completely transformed into a fine dendritic structure (secondary dendrite arm spacing; 5.0μm) and eutectic carbide by the rapid solidification conditions. The remelted zone was produced on the surface of cast iron (base metal) and a primary dendrite and ledebulite could be observed. EPMA line analysis indicated that alloyed layer (thickness ; 150∼200 μm) existed between clad layer and base metal. These results show that CO2 laser beam cladding serves as a new surface treatment process for cast iron in foundry industries.
Journal
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- Journal of Japan Foundry Engineering Society
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Journal of Japan Foundry Engineering Society 70 (5), 323-328, 1998
Japan Foundry Engineering Society
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Details
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- CRID
- 1390001206508522752
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- NII Article ID
- 10002553802
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- NII Book ID
- AN10514770
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- COI
- 1:CAS:528:DyaK1cXkt12ksb8%3D
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- ISSN
- 21855374
- 13420429
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- NDL BIB ID
- 4470663
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- CiNii Articles
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- Abstract License Flag
- Disallowed