文献类型：期刊文献

英文题名：Effect of T6I4 and T616 on the machinability of 7075 aluminum alloy and tool wear mechanism

作者：Zhang, Ping[1,2];Gao, Yeran[1];Wang, Shunxiang[1];Liu, Zehua[1];Lin, Zhenyong[1];Zhang, Songting[1];Yue, Xiujie[2]

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

年份：2023

卷号：127

期号：9-10

起止页码：4453

外文期刊名：INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY

收录：SCI-EXPANDED(收录号：WOS:001021030800002)、、EI(收录号：20232614319704)、Scopus(收录号：2-s2.0-85163289417)、WOS

基金：The work was supported by the National Natural Science Foundation of China (51705270 and 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; Heat treatment; Finite element simulation; Cutting force; Surface quality; Tool wear

外文摘要：The effect of T6I4 and T6I6 interrupted aging processes on the machinability of 7075 aluminum alloy is investigated. The cutting force, cutting temperature, surface roughness, and tool wear variations of the alloy in T6I4 and T6I6 states are identified at the macroscopic and microscopic scales with the help of a dynomometer, a roughness tester, an optical microscope, a scanning electron microscope, and ABAQUS 6.14 and through experiment and simulation. The results show that compared with T6 peak-aging, T6I4 and T6I6 greatly improve the machinability of 7075 aluminum alloy; under the same cutting parameters, 7075-T6I4 and 7075-T6I6 alloys have smaller cutting force, cutting temperature, and surface roughness, with 7075-T6I4 displaying the best performance. Increasing cutting speed and reducing feed rate, together, effectively improve the workpiece surface finish. The tool wear is also better and mainly comprises tool chipping and adhesive wear. XRD analysis indicates that during cutting, the precipitates of 7075 aluminum alloy are primarily & eta;-phases; the Al peak of 7075-T6I4 alloy is significantly higher than that of the other two heat treatment states. Its grain size is smaller, too.