文献类型：期刊文献

英文题名：Damage Analysis and Optimal Design of Micro-Structure Milling Cutter Based on Peridynamics

作者：Deng, Jing Jiang, Hongwan Yuan, Sen Yue, Xi Tian, Chuchun Ren, Zhongwei

第一作者：Deng, Jing

机构：[1] School of Mechanical Engineering, Guizhou University, Guiyang, 550025, China; [2] School of Mechanical Engineering, Guizhou Institute of Technology, Guiyang, 550003, China

第一机构：School of Mechanical Engineering, Guizhou University, Guiyang, 550025, China

年份：2023

外文期刊名：SSRN

收录：EI(收录号：20230371519)

语种：英文

外文关键词：Continuum mechanics - Cracks - Cutting - Heat resistance - Milling (machining) - Milling cutters - Topology

摘要：H13 die steel has the characteristics of high hardness, strong toughness, and good heat resistance, and is a typical difficult to process materials material. During the cutting process, it is prone to accelerate tool wear and cause thermal deformation. By reasonably designing micro-grooves, the comprehensive performance of the tool can be effectively improved. In this study, by optimizing the structural parameters of the micro-groove, the comprehensive performance of the tool is significantly improved, and the micro-groove optimization control mechanism is deeply analyzed. At the same time, the micro-damage problem is numerically analyzed by using the Peridynamics(PD) numerical simulation and comparison experiment. Research results indicate that properly increasing the distance between the slot at the outer contour of the cutting tool and the cutting edge, and projecting it in a flattened shape onto the surface of the tool, while making the groove depth at the tool minor cutting edge change smoothly, and increasing the groove depth at the tool major cutting edge, can effectively enhance the comprehensive performance of the cutting tool. The tool major cutting edge nearfield and rake face are prone to micro-cracks resulting in crack diffusion. When the milling time is 3.5×10-6 s, the tool major cutting edge combined displacement increases most rapidly, nose of tool performance is the best, the major flank optimization effect is the most obvious, and the resultant displacement is reduced by about 37.06%. By optimizing the structural parameters of micro-grooves on the rake face, this study enhances the overall performance of the tool and unveils the formation, distribution, and variation patterns of near-field cracks on the tool’s cutting edge. This provides a scientific basis and guidance for further improving the durability and reliability of the tool. At the same time, the research results have a certain reference value for the optimization design and manufacture of high efficiency milling H13 die steel tools. ? 2023, The Authors. All rights reserved.