文献类型：期刊文献

英文题名：Modeling of material removal based on multi-scale contact in cylindrical polishing

作者：Yao, Weifeng[1];Chu, Qingqing[1];Lyu, Binghai[2];Wang, Chengwu[3];Shao, Qi[2];Feng, Ming[4];Wu, Zhe[5]

机构：[1]Shaoxing Univ, Sch Mech & Elect Engn, Shaoxing 312000, Peoples R China;[2]Zhejiang Univ Technol, Ultraprecis Machining Ctr, Hangzhou 310014, Peoples R China;[3]Zhejiang Normal Univ, Coll Engn, Jinhua 321004, Peoples R China;[4]Wenzhou Univ, Coll Mech & Elect Engn, Wenzhou 325035, Peoples R China;[5]Hefei Univ Technol, Sch Mech Engn, Hefei 230009, Peoples R China

年份：2022

卷号：223

外文期刊名：INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES

收录：SCI-EXPANDED(收录号：WOS:000799004700001)、、EI(收录号：20221812044590)、Scopus(收录号：2-s2.0-85128983631)、WOS

基金：This work was supported by the National Natural Science Foundation of China [grant No. 51705330, U1809221, 51935008 and 51905280] ; Natural Science Foundation of Zhejiang Province (CN) [grant No. LQ22E050008 and LZY22E050004] ; National Key Research and Development Program of China [grant No. 2018YFB2000402 and 2018YFB2000502] .

语种：英文

外文关键词：Free abrasives polishing; Multi-scale contact; Material removal rate (MRR); Surface roughness; Orthogonal tests

外文摘要：In this paper, the material removal and the surface roughness in the cylindrical polishing with a soft pad and free abrasives are investigated theoretically and experimentally. Existing our studies have suggested that there is different contact deformation at dimension scales of millimeter, micrometer and nanometer. On that basis, the material removal model is proposed by integrating the contact at different scales in accordance with the Hertz contact, the Greenwood and Williamson's model (G-W model) of rough contact and the single grain's cutting depth. Furthermore, a model of surface roughness is built based on the idea that more materials are removed at the peak on the workpiece's surface, whereas few materials are removed at the valley. The polishing experiments and simulation of cylindrical AISI 52100 steel using the polyurethane polishing pad and the free abrasives of aluminum oxide powder were performed through the Taguchi orthogonal tests, which indicated that the simulation results were well consistent with the experimental results. Under the optimal conditions, the material removal rate (MRR) of 0.40 mu m/min was achieved, and the surface roughness R(a )was reduced from 104.90 to 20.22 nm after the polishing for 12 min. The contributions of the loading force, the abrasives concentration and the grain size on the MRR and the surface roughness are investigated in accordance with the variance and the level average response, and their reasons are discussed at different scales. It is revealed that the influences of loading force and grain size are significantly different at multi-scale. Furthermore, the parameters related to the contact (e.g., nominal contact area, average contact gap and single grain's cutting depth) under different conditions are studied.