叶序排布超硬磨粒砂轮滚磨结构化沟槽表面的仿真
2019-05-20
作者：陈天宇，吕玉山，车东泽，熊伟，李兴山
单位：沈阳理工大学
摘要：基于生物学的叶序排布理论设计了叶序排布超硬磨粒砂轮，并提出了应用该砂轮滚磨外圆表面结构化沟槽的方法。对叶序排布超硬磨粒砂轮的滚磨加工过程进行运动学仿真研究，获得了磨削参数的变化对磨削区域结构化沟槽表面形貌的影响规律。仿真结果表明:砂轮与工件之间的转速比决定了沟槽的数量，且转速比越大沟槽间距越小；轴向进给速度越小，加工出沟槽表面的表面波纹度越低，当轴向进给速度超过临界轴向进给速度时，将无法形成沟槽表面；磨削深度越深，磨痕截面尺寸越大，磨痕长度越长。
关键词：超硬磨料砂轮；滚磨；结构化表面；叶序排布仿真
中图分类号：TG74；TH161+.14文献标志码：ADOI：10.3969/j.issn.1000-7008.2019.05.014
Reseach on Simulation of HobGrinding Structured Groove Surface with
Superabrasive Grinding Wheel with Abrasive Phyllotactic Pattern
Chen Tianyu，Lv Yushan，Che Dongze，Xiong Wei，Li Xingshan
Abstract:A kind of the super abrasive grinding wheel，which has defined abrasive grain pattern，are designed based on the phyllotaxis theory of biology，and puts forward the method of hobgrinding the structured groove surface.The kinematics simulation is proceeded to the process of grinding.The change of grinding parameters has an impact on the surface morphology of the structured groove surface in the grinding area，and the influence rule of the change of grinding parameters is obtained.The simulation results show that the speed ratio between the grinding wheel and workpiece determines the number of grooves，and as the speed ratio increases，the distance between grooves will decrease.In the grinding process，the smaller the axial feeding speed is，the lower the waviness of the will be.When the axial feeding speed exceeds the critical axial feeding speed，the groove surface will not be generated.As the depth of grinding deepens，the section size of grinding mark becomes larger and the length of grinding mark becomes longer.
Keywords:superabrasive grinding wheel；hobgrinding；structured surface；simulation phyllotactic pattern