设计简介
摘 要
孔加工是金属切削加工中最重要的工序之一，据统计，约占所有金属切削加工工序的33%。在自动化生产线中，孔加工经常决定着生产周期的长短，由于钻头在孔的加工技术中起着重要的作用，国内外对其进行了广泛的研究和改进。过去采用实验手段分析麻花钻相当耗材，增加了企业成本，因此对麻花钻的有限元分析对分析就显得很重要，通过钻削的模拟仿真，可以很直观的看出刀具磨损、切削力、工件温度、应力及应变的变化，以提高设计的效率和合理性，降低企业的成本。
本设计采用三维软件solidworks对整体硬质合金麻花钻进行建模,在运用Solidworks系统成功建立麻花钻的三维模型后，可以通过Solidworks的Simulation功能模块对零件进行静态有限元分析。Solidworks主要是对麻花钻进行静态分析，利用DEFORM-3D可以进行钻削模拟仿真，能够有效地对钻削过程参数的变化进行分析。结果表明，位移、应力和应变的变化主要是在其施加的主切削刃和横刃上，麻花钻主切削刃的最外端位移变化最大，横刃上的应力和应变较集中；扭矩，轴向力和刀具磨损随麻花钻转速的增大而增大，随进给量的减小而减小。
【关键词】：麻花钻，Solidworks，有限元，DEFORM-3D
Abstrac
Hole machining is one of the most important process in the metal cutting, According to statistics, about 33% of metal cutting process is hole machining. Hole machining often determines the length of production cycle in the automated production line. In the past ,analysis of experimental methods used quite a twist drill supplies, increased business costs. Because of the drill plays an important role in the hole processing technology ,so the international researchs and improves it widely. Twist of the finite element analysis is very important in the past. In order to improve design efficiency and rationality, and reduce costs. We can see the tool wear, cutting force, workpiece temperature, stress and strain changes very intuitively from the Drilling Simulation.
This design uses solidworks to make model of cemented carbide twist drill. After the three-dimensional model of twist was successfully established with Solidworks system.. We can make the static finite element analysis of parts with the function module of Solidworks. Solidworks make the static analysis of the twist mainly, We can effectively analysis the change of the drilling process parameters by Simulation for Drilling of the DEFORM-3D. The FEM simulation demonstrates that the displacement, stress and strain changes are mainly applied in the main cutting edge and horizontal edge, and twist the main cutting edge of the outermost end of the maximum displacement, the stress on the horizontal edge and more focused response; the torque, thrust and tool wear increases with larger diameter of drill bit, and reduces with smaller feed.
【Key words】: twist, Solidworks, finite element method, DEFORM-3D
目 录
摘 要 2
引 言 4
第一章CAD技术 4
第一节 CAD技术概述 4
第二节 刀具CAD系统的发展 6
第三章SolidWorks软件 9
第一节 solidworks的发展 9
第二节 Solidworks软件特点 10
第三节 solidworks建模技术 11
第四章 麻花钻 12
第一节 麻花钻的三维建模 12
第二节 麻花钻的结构组成及几何参数计算 20
第五章 麻花钻的静态力分析 24
第一节 钻削力的产生及组成 24
第二节 麻花钻的静态分析 27
第六章 麻花钻的钻削仿真分析 38
第一节 Deform的概述 38
第二节 DEFORM功能 38
第三节 DEFORM软件操作流程 39
第四节 DEFORM-3D对麻花钻的有限元分析 41
总结与体会 53
致谢词 55
参考文献 56
孔加工是金属切削加工中最重要的工序之一，据统计，约占所有金属切削加工工序的33%。在自动化生产线中，孔加工经常决定着生产周期的长短，由于钻头在孔的加工技术中起着重要的作用，国内外对其进行了广泛的研究和改进。过去采用实验手段分析麻花钻相当耗材，增加了企业成本，因此对麻花钻的有限元分析对分析就显得很重要，通过钻削的模拟仿真，可以很直观的看出刀具磨损、切削力、工件温度、应力及应变的变化，以提高设计的效率和合理性，降低企业的成本。
本设计采用三维软件solidworks对整体硬质合金麻花钻进行建模,在运用Solidworks系统成功建立麻花钻的三维模型后，可以通过Solidworks的Simulation功能模块对零件进行静态有限元分析。Solidworks主要是对麻花钻进行静态分析，利用DEFORM-3D可以进行钻削模拟仿真，能够有效地对钻削过程参数的变化进行分析。结果表明，位移、应力和应变的变化主要是在其施加的主切削刃和横刃上，麻花钻主切削刃的最外端位移变化最大，横刃上的应力和应变较集中；扭矩，轴向力和刀具磨损随麻花钻转速的增大而增大，随进给量的减小而减小。
【关键词】：麻花钻，Solidworks，有限元，DEFORM-3D
Abstrac
Hole machining is one of the most important process in the metal cutting, According to statistics, about 33% of metal cutting process is hole machining. Hole machining often determines the length of production cycle in the automated production line. In the past ,analysis of experimental methods used quite a twist drill supplies, increased business costs. Because of the drill plays an important role in the hole processing technology ,so the international researchs and improves it widely. Twist of the finite element analysis is very important in the past. In order to improve design efficiency and rationality, and reduce costs. We can see the tool wear, cutting force, workpiece temperature, stress and strain changes very intuitively from the Drilling Simulation.
This design uses solidworks to make model of cemented carbide twist drill. After the three-dimensional model of twist was successfully established with Solidworks system.. We can make the static finite element analysis of parts with the function module of Solidworks. Solidworks make the static analysis of the twist mainly, We can effectively analysis the change of the drilling process parameters by Simulation for Drilling of the DEFORM-3D. The FEM simulation demonstrates that the displacement, stress and strain changes are mainly applied in the main cutting edge and horizontal edge, and twist the main cutting edge of the outermost end of the maximum displacement, the stress on the horizontal edge and more focused response; the torque, thrust and tool wear increases with larger diameter of drill bit, and reduces with smaller feed.
【Key words】: twist, Solidworks, finite element method, DEFORM-3D
目 录
摘 要 2
引 言 4
第一章CAD技术 4
第一节 CAD技术概述 4
第二节 刀具CAD系统的发展 6
第三章SolidWorks软件 9
第一节 solidworks的发展 9
第二节 Solidworks软件特点 10
第三节 solidworks建模技术 11
第四章 麻花钻 12
第一节 麻花钻的三维建模 12
第二节 麻花钻的结构组成及几何参数计算 20
第五章 麻花钻的静态力分析 24
第一节 钻削力的产生及组成 24
第二节 麻花钻的静态分析 27
第六章 麻花钻的钻削仿真分析 38
第一节 Deform的概述 38
第二节 DEFORM功能 38
第三节 DEFORM软件操作流程 39
第四节 DEFORM-3D对麻花钻的有限元分析 41
总结与体会 53
致谢词 55
参考文献 56
