铣削过程中不同铣刀螺旋角对切削力系数影响研究

发布时间：2018-05-08 23:36

本文选题：螺旋角 + 稳定性　；参考：《组合机床与自动化加工技术》2017年12期

【摘要】：铣削加工中,铣刀螺旋角的大小对切削力系数具有决定性影响,进而影响整个铣削过程中的稳定性。为了实现正确计算不同螺旋角铣刀铣削过程中对切削力大小的影响,文章提出两种切削力系数计算方法,分别是基于传统实验测量和正交斜变换的混合计算方法以及泰勒级数法。首先根据现有知识和相关理论建立了混合计算方法和泰勒级数法的数学模型;然后利用abaqus软件对五种不同螺旋角铣刀进行铣削仿真实验得到混合计算方法所需要的切削角和剪切力,用提出的两种方法分别计算铣削过程中的三向切削力;最后通过仿真实验获得的三向切削力值对比证明了混合计算方法和泰勒级数法计算螺旋角对切削力系数影响的准确性。
[Abstract]:In milling, the helical angle of milling cutter has a decisive effect on the cutting force coefficient, and then affects the stability of the whole milling process. In order to correctly calculate the influence on the cutting force in the milling process of different helical angle milling cutters, two calculating methods of cutting force coefficient are put forward in this paper. The mixed calculation method based on traditional experimental measurement and orthogonal skew transformation and Taylor series method respectively. Firstly, the mathematical models of mixed calculation method and Taylor series method are established according to the existing knowledge and relevant theories. Then the cutting angle and shear force needed by the mixed calculation method are obtained by the simulation experiment of five different helical angle milling cutters with abaqus software, and the triaxial cutting forces in the milling process are calculated respectively by the two methods proposed. Finally, the accuracy of the mixed calculation method and Taylor series method for calculating the influence of helical angle on the cutting force coefficient is proved by the comparison of the values of the triaxial cutting force obtained from the simulation experiments.
【作者单位】：北华大学信息技术与传媒学院;
【基金】：国家教育部春晖计划(104900150,104900071) 吉林省自然科学基金(20140101177JC) 吉林省高校科学技术研究规划项目(2016057) 吉林市科技局指导性科技计划项目(201467007,2015334001)
【分类号】：TG54

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