文献类型：期刊文献

英文题名：Study on the Micro-cutting Mechanism of 7075 Aluminum Alloy with Pre-fabricated Surface Microtextures

作者：Zhang, Ping[1,2];Zhang, Songting[1];Sun, Yajie[1];Zhang, Jinlong[1];Yue, Xiujie[2,3]

机构：[1]Guangdong Ocean Univ, Coll Mech & Power Engn, Zhanjiang, Peoples R China;[2]Qingdao Huanghai Univ, Coll Intelligent Mfg, Qingdao 266520, Peoples R China;[3]Qingdao Univ Technol, Coll Intelligent Mfg, Qingdao 266520, Peoples R China

年份：2024

外文期刊名：JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE

收录：SCI-EXPANDED(收录号：WOS:001228802400004)、、EI(收录号：20242116133078)、Scopus(收录号：2-s2.0-85193689194)、WOS

基金：The work was supported by the National Natural Science Foundation of China (51705270), the National Natural Science Foundation of China (No. 51575289), the Natural Science Foundation of Guangdong Province (No. 2023A1515030171), Science and Technology Project of Zhanjiang City, Guangdong Province (No. 2022A01004), the Natural Science Foundation of Shandong Province (No. ZR2016EEP03), the Applied Basic Research Program of Qingdao city (No. 19-6-2-69-cg) and Shandong Qingchuang Science and Technology Project (No. 2019KJB022).

语种：英文

外文关键词：7075 aluminum alloy; cutting force; residual compressive stress; surface microtexture; surface quality

外文摘要：The research objective is to explore the impact of various surface microtextures on the machining process of the 7075 aluminum alloy. Utilizing both experimental and computational techniques, this study assesses how cutting parameters influence the cutting forces, surface integrity, and residual stresses in 7075 aluminum alloy components with engineered surface microtextures. Findings indicate that cutting velocity predominantly affects the cutting forces on workpieces with horizontal and vertical microtextures, whereas cutting depth is more influential on pieces with intersecting microtextures. As the cutting velocity is heightened from 50 to 200 mu m/s, there is a substantial increase in the cutting force along the X-axis by 293.83% for horizontal and 282.66% for vertical micro-textured specimens, with corresponding Y-axis force escalations of 139.12 and 127.47%. An increment in cutting depth from 15 to 30 mu m leads to a rise in the X-axis and Y-axis cutting forces for intersecting micro-texture samples by 136.19 and 81.28%, respectively. Surface roughness is most sensitive to variations in cutting speed for specimens with horizontal, vertical, and intersecting microtextures. At a cutting velocity of 200 mu m/s, the roughness measures at 0.236, 0.18, and 0.057 mu m for each texture type, respectively. Conversely, at diminished cutting speeds, the surface roughness of all micro-textured variants remains relatively unchanged, maintaining within a 0.01 mu m threshold. Moreover, cutting speed exerts the most substantial effect on the peak residual compressive stresses within the microtextures. As the velocity increases from 50 to 200 mu m/s, the stresses rise by 123.39, 172.3, and 169.84% for horizontal, vertical, and intersecting textures, respectively. At the lower velocity of 50 mu m/s, horizontal micro-textured specimens exhibit residual compressive stresses about 56.41 and 48.64% higher than those with vertical and intersecting textures. At the higher velocity of 200 mu m/s, the difference becomes 28.32 and 23.06%, favoring the horizontal textures over the vertical and intersecting ones, respectively.