钛合金铣削加工中切削温度的三维有限元模拟研究
Three-dimensional finite element simulation of cutting temperature during milling of titanium alloy
结合航空钛合金立铣加工的实际情况，提出了主、副切削刃同时进行切削的螺旋齿双刃切削有限元模型，构建了切削加工环境下的材料本构关系模型，并采用了适合钛合金加工特性的绝热剪切模型。利用该有限元模型对航空钛合金Ti6Al4V进行了铣削加工切削温度的三维数值模拟，获得了铣削过程中切削温度的变化曲线和数值，结果表明最高切削温度位于刀屑接触区域，且更加靠近切削刃，并且前刀面温度高于后刀面温度。通过改进的切削温度实验测得了相同切削条件下的切削温度，实验结果与有限元模拟结果较为一致，证明所建立的有限元模型是正确的，可用于预报切削温度。
金属切削加工金属加工工具机械制造工艺
钛合金铣削加工双刃切削切削温度有限元模拟
李奎荣,杨勇.钛合金铣削加工中切削温度的三维有限元模拟研究[EB/OL].(2013-07-09)[2025-10-16].http://www.paper.edu.cn/releasepaper/content/201307-126.点此复制
A finite element model of helix double-edge cutting was developed to study the ending milling process of titanium alloy Ti6Al4V. To improve the accuracy of finite element simulation, a new method to construct material constitutive model was adopted, ant the adiabatic shear model was also applied. Three-dimensional numerical simulation of cutting temperature was carried out with major and minor cutting edge, and cutting temperature curves during milling process were obtained. An analysis indicates that the highest cutting temperature lies in tool-chip interface and is more close to cutting edge; moreover, the temperature is higher in tool face than tool flank. The semi-artificial thermo-couple cutting temperature experiment was improved by substituting constantan band for constantan wire. With the new cutting temperature experiment, the cutting temperature curves during milling process were obtained. A good agreement between simulation and experimental value was achieved, which proves that the finite element model presented in this paper is correct, and cutting temperature can be predicted by using this model. This work lays the foundation for milling parameter optimization and provides a new way to control machining distortion caused by thermal stress for titanium alloy aviation monolithic component.
titanium alloymilling processdouble-edge cuttingcutting temperaturefinite element simulation
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