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后角形式对钻头性能的影响

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后角形式对钻头的切削力、应力、温度等有着重要的影响.对钻头整个的切削过程建立三维模型,并进行热力耦合仿真,分析了不同后角形式的钻头在干切状态下的Mises应力、切削力及温度的变化状况,找出两者之间的优缺点.建立内冷状态下钻头和冷却液流入流出三维模型,并进行热流耦合仿真,分析了不同后角形式的钻头冷却液流动及温度变化情况,找出两者之间的差距.为钻头的设计思路和应用场景提供参考.
Influence of backangle form on drill performance
The form of the back angle has a significant impact on the cutting force,stress,temperature,etc.of the drill.A three-dimensional model of the entire cutting process of the drill was established,and thermal coupling simulation was car-ried out to analyze the Mises stress,cutting force,and temperature changes of the drill with different back angle forms under dry cutting state,and to identify the advantages and disadvantages of the two.A three-dimensional model of the inflow and outflow of the coolant of the drill under internally cooled state was established,and heat flow coupling simulation was conduc-ted to analyze the flow and temperature changes of the coolant of the drill with different back angle forms,and to identify the differences between the two.This study has provided reference for the design and application of the drill.

drillfinite element simulationback anglethermodynamicshydrodynamics

廖湘辉、尹麒麟、汪万勇

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三峡大学 机械与动力学院,湖北 宜昌 443000

宜昌永鑫精工科技股份有限公司,湖北 宜都 443000

钻头 有限元仿真 后角 热力学 流体力学

2024

现代机械
贵州省机电研究设计院,贵州省机械工程学会

现代机械

影响因子:0.172
ISSN:1002-6886
年,卷(期):2024.(4)
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