标题：A generalized cutting force model for five-axis milling processes
作者：Song, Qinghua; Liu, Zhanqiang; Ju, Ganggang; Wan, Yi
作者机构：[Song, Qinghua; Liu, Zhanqiang; Ju, Ganggang; Wan, Yi] Shandong Univ, Sch Mech Engn, Minist Educ, Key Lab High Efficiency & Clean Mech Manufacture, 17 更多
通讯作者：Song, Qinghua;Song, QH
通讯作者地址：[Song, QH]Shandong Univ, Sch Mech Engn, Minist Educ, Key Lab High Efficiency & Clean Mech Manufacture, 17923 Jingshi Rd, Jinan 250061, Shandong, Peopl 更多
来源：PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE
关键词：Generalized milling cutter; cutting force; cutter-workpiece engagements;; five-axis milling; aero-engine impeller
摘要：A generalized mechanical model is proposed to predict cutting forces for five-axis milling process of sculptured surfaces with generalized milling cutter, which is considered as a revolution around tool axis of an arbitrary section curve composed of variable lines and curves. Solid-analytical-based method is presented and extended to precisely and efficiently identify the cutter-workpiece engagements between the generalized milling cutter and workpiece being machined. And the undeformed chip thickness is calculated with respect to pre-defined tool coordinate system, which is regarded as the transformation form of feed cross-feed normal system by lead and tilt angles. Although only two experimental validations (peripheral milling with cylinder end mill and multi-axis milling with ball end mill) are performed to estimate the robustness and flexibility of the method presented, it can be applied for an arbitrary mill geometry in multi-axis milling as well as three-axis milling, two-and-a-half-axis milling. Finally, a case study of aero-engine impeller five-axis milling with ball end mill is performed to further illustrate the validation of the model.