Substrate pre-treatment of cemented carbides using abrasive flow machining and laser beam ablation
Substrate pre-treatment of cemented carbides using abrasive flow machining and laser beam ablation
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使用磨料流加工和激光束烧蚀对硬质合金进行基体预处理
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
Vanja Mihotovic
中科院分区：
文献类型：
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作者：
E. Uhlmann;S. Richarz;Vanja Mihotovic
制造商和大学机构的研究活动的一个重要驱动力是提高刀具的刀具寿命。最近的出版物表明，涂层前的基材预处理以及切削刃的限定圆化是切削刀具寿命的关键因素。根据加工任务、工艺的灵活性和经济方面的不同，不同的技术用于基材预处理。然而，关于表面质量，两个相反的要求发生冲突。虽然高表面质量支持加工过程中的切屑去除，但粗糙表面上基材和涂层之间的膜粘附力更大。本文对作为硬质合金预处理工艺的磨粒流加工（AFM）和激光烧蚀技术进行了比较。相对于相关的工艺参数，使用AFM和激光烧蚀的粗糙度，表面形貌，机械活化和化学成分的预处理的效果已被确定。
A significant driver in research activities of manufacturers and university institutions is the improvement of tool life for cutting tools. Recent publications have shown that the substrate pre-treatment prior to coating as well as defined rounding of cutting edges are key factors for cutting tool life. Different technologies are used for substrate pre-treatment, depending on the machining task, flexibility of the process and economic aspects. However regarding the surface quality two opposing requirements come into conflict. While high surface quality supports the chip removal during machining, the film adhesion between substrate and coating is greater on rough surfaces. This paper presents a comparison of the abrasive flow machining (AFM) and laser ablation technologies as pre-treatment processes for cemented carbides. With respect to the relevant processing parameters, the effects of a pre-treatment using AFM and laser ablation on roughness, surface topography, mechanical activation and chemical composition have been determined.