标题：Deformation control in micro-milling of thin-walled structures
作者：Kou, Zhaojun; Wan, Yi; Liu, Zhanqiang; Cai, Yukui; Liang, Xichang
作者机构：[Kou, Zhaojun; Wan, Yi; Liu, Zhanqiang; Cai, Yukui; Liang, Xichang] Shandong Univ, Sch Mech Engn, Key Lab High Efficiency & Clean Mech Manufacture, Mi 更多
通讯作者地址：[Wan, Y]Shandong Univ, Sch Mech Engn, Key Lab High Efficiency & Clean Mech Manufacture, Minist Educ, Jinan 250061, Peoples R China.
来源：INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
关键词：Micro-milling; Thin-walled component; Deformation control; Low-melting; point alloy
摘要：Deformation and fracture are primary problems encountered in the machining of thin-walled structures, especially when micro-milling is employed. To resolve these problems, we propose a novel method that was developed by theoretical analysis and experimental investigation. The mechanical properties of micro-milling were analysed, and it was found that the axial force acting on the thin wall of a machined U-shaped structure significantly contributed to the deformation and fracture of the structure. A low-melting point alloy (LMPA) was therefore used as an auxiliary support to balance the axial force exerted by the micro-milling cutter, thereby enhancing the rigidity of the thin-walled workpiece. To evaluate the performance of the proposed method, a 15-mu m-thick beryllium bronze alloy was machined by precision micro-end-milling tools. The results confirmed the effectiveness and feasibility of the method for deformation control during the micro-milling of thin-walled components.