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三维复杂槽型铣刀片切入破损机理及其应用的研究

Study on the Theory and Application of Cut-In Disrepair with 3D Complex Groove Wave-Edge Milling Insert

【作者】 赵平

【导师】 王志刚;

【作者基本信息】 哈尔滨理工大学 , 机械制造及其自动化, 2009, 硕士

【摘要】 本文来源于黑龙江省重大科技攻关项目:“大型、复杂零部件用现代刀具系列产品化与开发研究”课题中的一个子项。以研究波形刃铣刀片切入类型的理论分析及相关刀具的开发为主要内容。本论文深入研究三维复杂槽型波形刃铣刀片的运动切入接触理论;推导三维复杂槽型波形刃铣刀片九种切入类型的判别数学模型;建立不同切入类型刀片的冲击破损寿命累积分布函数优选数学模型。基于模拟实验与数学分析,进行了三维复杂槽型波形刃铣刀片前刀面方程的推导、前刀面运动方程的推导、接触线方程的推导、交线方程的推导和切削域形貌方程的推导,引入前刀面接触角变化量δ这一定义,提出了三维复杂槽型波形刃铣刀片九种新的切入接触形式,建立了三维复杂槽型波形刃铣刀片切入类型判别数学模型。从而形成三维复杂槽型波形刃铣刀片运动切入接触理论。建立了不同切入类型刀片的三维复杂槽型波形刃铣刀片冲击破损寿命累积分布函数数学模型,得出刀片冲击破损寿命的概率分布服从威布尔概率分布函数的结论,优选出三维复杂槽型波形刃铣刀片切入破损类型,最佳的切入类型为U型,其余依次为V型、T型、S型。基于切入破损理论,设计开发了两种三维复杂槽型铣刀。为铣刀的重构、铣刀片槽型的开发提供一定的设计基础。

【Abstract】 This is the sub-subject“The modern cutters on large and complex part are series manufactured and researched”of Heilongjiang province great science and technology tackle key problem item, which is mainly about the study of face milling cutter cut-in type.This paper described the moving contact theory of the 3D complex groove wave-edge milling insert. The mathematical model of nine kinds of cut-in style discriminant for the 3D complex groove wave-edge milling insert is deduced. The excellent mathematical model of the cumulate function of impacting disrepair life is founded on various cut-in styles.Based on mathematical analysis and simulation experiment, the front face equation, the front face moving equation, the cut-in contact equation, the join line equation and the shape of cutting field equation for 3D complex groove wave-edge milling insert are deduced. The changing quantityδof contact angle of the front face is imported. The nine new kinds of contact forms of the 3D complex groove wave-edge milling insert are put forward. Thereafter, the mathematical model of the nine kinds of cut-in style discriminant for the 3D complex groove wave-edge milling insert is established. The contact theory of 3D complex groove wave-edge milling insert is formed.The mathematical model of the cumulate function of impacting disrepair life is founded on various cut-in styles. That conclusion of the cumulate function of impacting disrepair life obey to the function of Weibull is reached. The cut-in style of the 3D complex groove wave-edge milling insert is chosen for best. The excellent cut-in style is the U style, and the V style, T style and S style are followed in order.Based on the theory of cut-in disrepair, two types of 3D complex groove milling insert are designed and developed. It provides a basis for milling cutter reconstruction. All the productions above are the theory foundation for further developing the 3D complex groove milling inserts.

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