Surface texture formation in precision machining of direct laser deposited tungsten carbide

作     者：Szymon Wojciechowski Zbigniew Nowakowski Radomir Majchrowski Grzegorz Krolczyk 

作者机构：Faculty of Mechanical Engineering Poznan University of Technology Piotrowo 3 Poznan 60-965 Poznan Poland Opole University of Technology Proszkowska 7645-758 Opole Poland 

出 版 物：《Advances in Manufacturing》 (先进制造进展（英文版）)

年 卷 期：2017年第5卷第3期

页      面：251-260页

核心收录：

学科分类：08[工学] 

基　　金：supported by the project 

主　　题：Surface texture   Precision machining ·Tungsten carbide · Direct laser deposition (DLD) 

摘      要：This paper focuses on an analysis of the surface texture formed during precision machining of tungsten carbide. The work material was fabricated using direct laser deposition （DLD） technology. The experiment included precision milling of tungsten carbide samples with a monolithic torus cubic boron nitride tool and grinding with diamond and alumina cup wheels. An optical surface profiler was applied to the measurements of surface textures and roughness profiles. In addition, the micro-geometry of the milling cutter was measured with the appli- cation of an optical device. The surface roughness height was also estimated with the application of a model, which included kinematic-geometric parameters and minimum uncut chip thickness. The research revealed the occurrence of micro-grooves on the machined surface. The surface roughness height calculated on the basis of the traditional kinematic-geometric model was incompatible with the measurements. However, better agreement between the theoretical and experimental values was observed for the minimum uncut chip thickness model.