基于残留高度设计的模具加工用新型圆角端铣刀

发布时间：2018-05-25 03:26

本文选题：模具加工 + 残留高度　；参考：《机械工程学报》2015年05期

【摘要】：针对工厂实际加工编程时用常规圆角端铣刀进行大切深加工造成的加工后表面残留高度大且不均,在初次荒加工后需要建立残留模型进行二次荒加工的情况,对常规圆角端铣刀的R角刃形进行优化设计,设计出一种有效降低被加工工件表面残留高度的大切深高效铣削刀具。建立该新型圆角端铣刀以及常规圆角端铣刀的水平切削行距与表面残留高度的数学模型。模型参数分析表明,该新型圆角端铣刀具有良好的切削效果。对新型圆角端铣刀及常规圆角端铣刀的切削仿真表明,前者的加工效率最高可提高2.4倍。对设计的刀具进行磨制,实际加工实验表明,相比于常规圆角端铣刀,应用该新型圆角端铣刀可降低表面残留高度1.96倍。
[Abstract]:In view of the fact that the surface residual height is large and uneven due to the deep cutting of the conventional round end milling cutter in the factory, it is necessary to establish a residual model for secondary machining after the first machining. This paper optimizes the design of the R angle edge of the conventional round corner end milling cutter and designs a high efficiency milling tool with large tangent depth which can effectively reduce the surface residual height of the workpiece being machined. The mathematical models of horizontal cutting distance and surface residual height of the new round end milling cutter and conventional round end milling cutter are established. The model parameter analysis shows that the new round end milling cutter has good cutting effect. The cutting simulation of the new round end milling cutter and the conventional round end milling cutter shows that the processing efficiency of the former can be increased by 2.4 times as much as that of the conventional round end milling cutter. The experimental results show that compared with the conventional round end milling cutter, the surface residual height can be reduced by 1.96 times by using the new type of round end milling cutter.
【作者单位】：哈尔滨理工大学机械动力工程学院;
【基金】：国家自然科学基金重点资助项目(51235003)
【分类号】：TG714

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