Laser-structured grinding tools - Generation of prototype patterns and performance evaluation
Laser-structured grinding tools - Generation of prototype patterns and performance evaluation
复制标题
DOI：
10.1016/j.jmatprotec.2013.11.015
复制
发表时间：
2014-04-01
影响因子：
6.3
通讯作者：
Wegener, K.
中科院分区：
文献类型：
--
作者：
Walter, C.;Komischke, T.;Wegener, K.
利用超短脉冲激光器的激光烧蚀实现了高几何柔性，并且允许在例如超硬材料中制造微尺度结构，这是利用任何其他工艺几乎不可能的。在这项工作中，提出了一种新的激光结构化方法，采用皮秒激光器，并应用于混合结合（金属陶瓷）CBN磨具的表面上产生各种微图案。对结构化刀具的磨削性能和磨损行为进行了测试，并与非结构化刀具的结果进行了比较，发现表面形貌的类型对磨削效果有很大的影响。激光结构化刀具通常可将磨削力降低高达54%。然而，取决于图案的几何形状，工件表面粗糙度的显著增加和升高的磨损率（在表面粗糙度方面）必须被考虑在内。尽管如此，该研究并未揭示结构化工具的径向轮廓磨损的显著增加。(C)2013爱思唯尔有限公司版权所有。
Laser ablation with ultrashort pulsed lasers enables high geometrical flexibility and allows for fabrication of micro scale structures in e.g. ultrahard materials that are hardly possible with any other process. In this work a novel laser structuring method employing picosecond lasers is proposed and applied to produce various micro patterns on the surface of hybrid bonded (metal-vitrified) CBN grinding tools. Grinding performance and wear behaviour of the structured tools are tested and compared to the results of a non-structured tool.It is found that the type of surface pattern has a strong influence on the grinding results. The laser structured tools generally allow for a reduction of grinding forces by up to 54%. However, depending on the pattern geometry, a significant increase in workpiece surface roughness and elevated wear rates (in terms of surface roughness) have to be taken into consideration. Despite this fact, the study does not reveal a significant increase in radial profile wear of the structured tools. (C) 2013 Elsevier B.V. All rights reserved.