【摘要】 硬质合金刀具广泛应用于插铣加工领域,考虑到加工成本及效率等问题,刀具磨损机理与磨损率的研究变得十分重要。通过对磨损机理的分析研究并结合刀具结构与切削参数对刀具后刀面磨损率进行估算,分析了不同切削速度下的最大磨损率。采用单因素分析法对插铣刀进行仿真与实验,并利用扫描电子显微镜对后刀面磨损情况进行观测。结果表明:在插铣加工0Cr13不锈钢时,刀具后刀面主要磨损形式为磨粒磨损、粘结磨损和扩散磨损,其中磨粒磨损伴随试验发生在整个过程。更多还原

【Abstract】 Cemented carbide cutting tools are widely used in the field of plunge milling. Considering the processing cost and efficiency,the research of tool wear mechanism and wear rate becomes very important. Based on the analysis of wear mechanism and the tool structure and cutting parameters,the wear rate of tool flank is estimated,and the maximum wear rate under different cutting speeds is analyzed. The simulation and experiment of the milling insert are carried out by single factor analysis,and the flank wear is observed by scanning electron microscope. The results show that the main wear forms of tool flank are abrasive wear,adhesive wear and diffusion wear when milling 0 Cr13 stainless steel. The abrasive wear occurs with the test.更多还原