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1507 |
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Wednesday, June 04, 2008, Auditorium 2 2:40 PM Cold Spraying 3 Everything around this young thermal spraying technique, possible applications and latest developments for equipment of high pressure and low pressure cold spraying, models and simulations for a deeper process knowledge |
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Manufacturing of diamond abrasive wheel from Ni coated diamond/bronze composite feedstock through kinetic spray technology |
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Hyuntaek Na* / Kinetic Spray Coating Laboratory (NRL), Division of Materials Science & Engineering, Hanyang University, Korea S Kumar / Kinetic Spray Coating Laboratory (NRL), Division of Materials Science & Engineering, Hanyang University, 17 Haengdang-dong, Seongdong-ku, Korea Gyuyeol Bae/ Welding ResearchKinetic Spray Coating Laboratory (NRL), Division of Materials Science & Engineering, Hanyang University, 17 Haengdang-dong, Seongdong-ku, Korea Hyungjun Kim/ Welding Research Center, Research Institute of Industrial Science & Technology, Korea Changhee Lee/ Kinetic Spray Coating Laboratory (NRL), Division of Materials Science & Engineering, Hanyang University, 17 Haengdang-dong, Seongdong-ku, Korea |
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Manufacturing of diamond abrasive wheel has been achieved through kinetic spray technique to simplify the manufacturing process and improve the mechanical properties. However, the size of initial diamond particles is reduced by fracturing in between the feedstock during the process. Uniform distribution of diamond particle in the coating layer is of significant importance to obtain mechanical properties for diamond abrasive wheel. In this study, optimized Ni thin film which is coated around surface of diamond particles was used to prevent the fracture of diamond particles and improve the mechanical properties. Thickness of Ni thin film was optimized by ABAQUS 6.67 finite element analysis software as 3 when mean size of bronze particles was about 20 . Fraction and size distribution of the diamond particle in the coating were analyzed through SEM and Image analyzer method. Keywords: Ni thin film, diamond abrasive wheel, kinetic spray, fracturing, fraction, Keywords: particle size |