钛合金型面侧壁铣削力建模与仿真  

Modeling and simulation of milling force in side milling of profile walled surface of titanium alloy

作　　者：李安海[1,2] 朱晓丽 张茹凤 盖少磊 LI Anhai;ZHU Xiaoli;ZHANG Rufeng;GAI Shaolei(Key Laboratory of High Efficiency and Clean Mechanical Manufacture of MOE,School of Mechanical Engineering,Shandong University,Jinan 250061,CHN;National Demonstration Center for Experimental Mechanical Engineering Education(Shandong University),Jinan 250061,CHN;Shelfoil Petroleum Equipment&Services Co.,Ltd.,Dezhou 253034,CHN;Shandong Binzhou Bohai Piston Co.,Ltd.,Binzhou 256602,CHN)

机构地区：[1]山东大学机械工程学院高效洁净机械制造教育部重点实验室,山东济南250061 [2]机械工程国家级实验教学示范中心(山东大学),山东济南250061 [3]德州大陆架石油工程技术有限公司,山东德州253034 [4]滨州渤海活塞有限公司,山东滨州256602

出　　处：《制造技术与机床》2023年第2期52-56,共5页Manufacturing Technology & Machine Tool

基　　金：山东省自然科学基金(ZR2021ME043);山东省重大科技创新工程(2019JZZY010114);山东大学青年学者未来计划(2018WLJH57);2022年山东大学教育教学改革研究项目(2022Y120)。

摘　　要：钛合金型面件侧壁的铣削一般采用整体硬质合金立铣刀进行加工,因切削力的影响,加工过程较难控制且会产生零件变形,对铣削力进行建模和预测是控制加工变形的有效措施。通过圆柱螺旋立铣刀微元切削力矢量求和及合成,建立了整体立铣刀侧面铣削过程中的瞬态切削力预测模型;采用不同进给速度条件下的铣削力辨识试验,并对平均切削力试验数据进行数值线性拟合,获得了钛合金侧面铣削试验圆柱螺旋立铣刀的剪切力和犁耕力系数。计算了不同切削参数下的四刃整体硬质合金立铣刀的瞬时切削力,并结合钛合金侧面铣削试验验证了所建立的仿真模型的有效性。这为钛合金结构件侧面铣削加工工艺参数的制定和优化选择提供了理论指导依据。The side milling of the profile walled of titanium alloy parts is generally processed with solid carbide end mills.Due to the influence of cutting forces,the machining process is difficult to control and will produce part deformation.Modeling and predicting of the milling forces is an effective method to control the machining deformation.Through the summation and synthesis of micro element cutting force vector of cylindrical spiral end mill,the transient cutting force prediction model in the side milling process of integral end mill was established.Both the shearing and ploughing force coefficients of the cylindrical spiral end mill for titanium alloy side milling test were obtained by using the milling force identification test under different feed speeds and the numerical linear fitting of the average cutting force test data.The instantaneous cutting forces of four edge solid carbide end mills with different cutting parameters were calculated,and the validity of the simulation model is verified by the side milling experiments of titanium alloy.This will provide a theoretical basis for the formulation and optimal selection of side milling process parameters of titanium alloy structural parts.

关 键 词：钛合金 铣削力 整体立铣刀 侧铣 

分 类 号：TG506[金属学及工艺—金属切削加工及机床]