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。
During the milling process,the size of the helix angle of the cutter has a decisive influence on the cutting force coefficient,which affects the stability of the whole milling process. In order to achieve the correct calculation of the effect of different helix angle milling on the cutting force,two kinds of cutting force coefficient calculation methods are proposed,which are based on the traditional experimental measurement and orthogonal oblique transformation of the hybrid calculation method and the Taylor series method. Firstly,the mathematical model of the hybrid method and the Taylor series method is established according to the existing knowledge and related theories. Then,the software of ABAQUS is used to simulate the milling experiment of five different spiral angle milling tools. The cutting angle and shear And the three-way cutting force in the milling process is calculated by the two methods. Finally,the comparison of the three-way cutting force obtained by the simulation experiment shows that the mixed calculation method and the Taylor series method have the effect of calculating the helix angle on the cutting force coefficient accuracy.
出处
《组合机床与自动化加工技术》
北大核心
2017年第12期133-136,共4页
Modular Machine Tool & Automatic Manufacturing Technique
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)
关键词
螺旋角
稳定性
混合计算方法
泰勒级数法
helix angle
stability
hybrid calculation method
taylor series method
