期刊
TRIBOLOGY INTERNATIONAL
卷 122, 期 -, 页码 236-245出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2018.02.018
关键词
Surface modification; Cemented carbide; Abrasive processes; Surface integrity
资金
- German Academic Exchange Service (DAAD)
- German Federal Ministry of Education and Research (BMBF)
- People Program (Marie Curie Actions) of the European Union's Seventh Framework Program (FP7) under REA [605728]
- Spanish Ministry of Economy and Competitiveness [MAT2015-70780-C4-3P]
Abrasive effectiveness of composite-like honing stones is related to the intrinsic surface topography resulting from the cubic boron nitride (CBN) grains protruding out of the metallic matrix. Within this framework, Laser Surface Texturing (LST) is implemented for replicating topographic features of a honing stone in a WC-base cemented carbide grade, commonly employed for making tools. In doing so, regular arrays of hexagonal pyramids (similar to CBN grains) are sculpted by a laser micromachining system. Micrometric precision is attained and surface integrity does not get affected by such surface modification. Finally, potential of laser-patterned cemented carbide tools, as alternative to conventional honing stones, is supported by successful material removal and enhanced surface smoothness of a steel workpiece in the abrasive testing.
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