| 金刚石颗粒-金属粉末的CO2激光烧结机理研究 |
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| 引用本文： | 钟如涛,秦应雄,唐霞辉,杨卫红.金刚石颗粒-金属粉末的CO2激光烧结机理研究[J].金刚石与磨料磨具工程,2009(4):18-23. |
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| 作者姓名： | 钟如涛 秦应雄 唐霞辉 杨卫红 |
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| 作者单位： | 1. 武汉钢铁(集团)公司研究院,武汉,430080
2. 华中科技大学光电子科学与工程学院,武汉,430074 |
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| 摘 要： | 采用高功率横流CO2激光光束、60%Cu-15%Sn-10%Ni-15%Ti（质量分数）合金钎料和保护氩气在45^#钢板表面钎焊金刚石颗粒。研究了钎料厚度、激光功率、激光扫描速度、离焦量对钎焊层的影响,分析了钎焊层的微观组织结构,讨论了其冶金结合机理。结果表明：在激光功率850W、扫描速度9mm/s、光斑直径3mm、负离焦、激光钎焊粉料的厚度为0.5mm时,可获得金刚石颗粒、钎料合金、金属基体三者具有最佳结合性能的钎焊层;金刚石表面可能生成了TiC层,钎焊样品没有明显的缺陷,钎焊层、金刚石和钢板有较高的结合强度。
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| 关 键 词： | 金刚石颗粒 激光钎焊 性能 结合机理 |
Study on CO_2 laser sintering for the mixture of metallic powder and diamond grits |
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| Zhong Rutao,Qin Yingxiong,Tang Xiahui,Yang Weihong.Study on CO_2 laser sintering for the mixture of metallic powder and diamond grits[J].Diamond & Abrasives Engineering,2009(4):18-23. |
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| Authors: | Zhong Rutao Qin Yingxiong Tang Xiahui Yang Weihong |
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| Affiliation: | Zhong Rutao, Qin Yingxiong, Tang Xiahui, Yang Weihong ( 1. Research and Development Center of Wuhan Iron and Steel (Group) Corp. , Wuhan 430080, China;2. Institute of Optoelectronics Science and Engineering, Huazhong University of Science and Technology , Wuhan 430074 , China) |
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| Abstract: | The diamond grits and the brazing alloy of 60%Cu-15%Sn-10%Ni-15%Ti(wt%)were brazed onto the substrate of 45# steel plate with the high-power transverse flow CW CO2 laser beam under the protection of argon atmosphere.The influence of different factors such as the thickness of brazing alloy,laser power,scanning speed as well as defocus distance on the performance of brazed layer was studied.The micro-structure and performance of brazed layer were analyzed,the metallurgical bonding mechanism was discussed.The ... |
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| Keywords: | diamond grit laser brazing performance bonding mechanism |
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