风机叶片成形工艺分析及模具设计（本科毕业论文设计）.doc
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风机叶片成形工艺分析及模具设计（本科毕业论文设计）,摘要板料冲压成形是一种重要的塑性加工方法，在现代汽车工业中的应用越来越广泛，汽车行业日益激烈的竞争，不仅要求提高冲压的生产效率，而且对冲压生产工艺的优化控制提出了更高的要求。因此，冲压工艺技术方法的不断完善和提高，一直是板料成形技术的研究热点。随着计算机软硬件技术，计算...
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风机叶片成形工艺分析及模具设计（本科毕业论文设计）
摘 要
板料冲压成形是一种重要的塑性加工方法，在现代汽车工业中的应用越来越广泛，汽车行业日益激烈的竞争，不仅要求提高冲压的生产效率，而且对冲压生产工艺的优化控制提出了更高的要求。因此，冲压工艺技术方法的不断完善和提高，一直是板料成形技术的研究热点。随着计算机软硬件技术，计算机图形学等学科的迅猛发展、CAD技术已成为产品设计人员进行研究开发的重要工具，其中的三维造型技术已被制造业广泛应用于产品及模具设计、方案评审、自动化加工制造及管理维护各个方面。
本次毕业设计以风机叶片的冲压工艺为研究对象。根据给定的三维实体模型，对零件的几何外形和结构进行分析以确定其成形过程中需要的成形方法。然后，以冲压工艺手册等大量参考资料为依据，通过计算和分析对成形方法的可行性进行验证。在确定单工序之后，根据各工序的自身特点确定成形次数和工序的复合方式，然后利用三维建模软件UGNX画出每一个工步的三维简图，从而合理的表述其工艺流程，并通过软件模拟并研究解决软件成型过程中出现的回弹问题。最后，利用模具设计2D、3D CAD软件，对模具关键部件进行三维造型，用于模具制造和模具绘图。并且对其中2个关键工序（拉深成形和修边冲孔）进行模具设计，对其模具总装进行计算机绘图。并且拆绘其中的非标准零件，确定各零件的材料规格和技术要求。
通过这次毕业设计，在巩固以前所学知识的基础上，对冲压技术、模具设计、模具制造及计算机辅助设计和计算机仿真技术等方面的知识有了进一步的深入学习。所设计的模具能够达到实际使用要求，为该产品的成功开发提供技术保证。
关键词：板料冲压,模具设计,冲压工艺分析,风机叶片,回弹分析
ABSTRACT
Sheet stamping is the most important plastic working method and it's applied to automobile widely more and more. With the increasingly drastic market competition in automobile industry, it requires not only high production efficiency, but also optimized
control on the production process. So the continuous improvement of sheet stamping technique and process has been there search hotspot of sheet forming all along. With the swift and violent development of computer hardware and software, finite element method and computer graphics, the computer aided engineering (CAE) technology based on numerical simulation is widely used in sheet forming field.
The part this paper designed is the gas turbine compressor blade solid model, According to the three-dimensional the geometric shape and structure of the part was analysis to certain the forming method in the forming process of pars. Then, based on the large amount of reference material, the validation of forming methods was designed by calculation and analysis .In according with the characteristics of every process, the frequency and manner of composite process can be certain, after determining the single operation. Then, every step of three-dimensional diagram was painted with 3D modeling software UGNX, to express a reasonable representation of its process. Finally, using 2D mold design, 3D CAD software, the mold 3D modeling of the key components can be painted for mold and die manufacturing drawings. And of these two key processes (drawing and trimming and punching) Mold Design, Die assembly of its computer graphics. And demolition of painting the non-standard components, determine the components of material specifications and technical requirements.
Through this graduation project, in the consolidation of previous knowledge on the basis of stamping technology, tooling design, Die manufacturing and computer-aided design and computer simulation technology, and other aspects of knowledge has been further in-depth study. Die designed to achieve actual use requirements for the successful development of products providing technical assurance.
Key words：Sheet stamping, Die design, Analysis for stamping technology, Gas turbine compressor blade, Analysis of springback
目 录
摘 要 I
ABSTRACT II
1绪论 1
1.1引言 1
1.2国内外研究现状 1
1.3 课题目的及内容 2
1.4课题可行性分析 3
2工艺分析 4
2.1零件成形性分析 4
2.1.1结构及尺寸分析 4
2.1.2材料分析 5
2.2工艺方案的选择及确定 6
2.2.1冲压工艺卡片 7
3 拉深成型模拟分析 7
3.1冲压成形有限元仿真理论 7
3.1.1有限元控制方程的求解 8
3.2模拟分析思路及流程图 8
3.3拉深成形模拟 10
3.3.1坯料的展开 10
3.3.2成形过程模拟 12
3.3.3拉深成形方案的优化 15
4风机叶片拉深成形中的回弹问题 19
4.1 回弹基础理论 19
4.2回弹产生的机理 19
4.3板料回弹的影响因素 21
4.4板料回弹分析的建模方法 22
4.5回弹模拟过程 22
4.6 回弹补偿方法的确定 27
4.7回弹补偿结果 28
5模具设计 31
5.1概述 31
5.2模具设计（拉深模） 31
5.3 工艺零件设计 31
5.3.1成形零件 31
5.3.2 定位零件 35
5.3.3 卸料零件 35
5.3.4 模板和模架设计 36
5.4 模具的装配简图 38
6结论 39
参考文献 40
致谢 42
摘 要
板料冲压成形是一种重要的塑性加工方法，在现代汽车工业中的应用越来越广泛，汽车行业日益激烈的竞争，不仅要求提高冲压的生产效率，而且对冲压生产工艺的优化控制提出了更高的要求。因此，冲压工艺技术方法的不断完善和提高，一直是板料成形技术的研究热点。随着计算机软硬件技术，计算机图形学等学科的迅猛发展、CAD技术已成为产品设计人员进行研究开发的重要工具，其中的三维造型技术已被制造业广泛应用于产品及模具设计、方案评审、自动化加工制造及管理维护各个方面。
本次毕业设计以风机叶片的冲压工艺为研究对象。根据给定的三维实体模型，对零件的几何外形和结构进行分析以确定其成形过程中需要的成形方法。然后，以冲压工艺手册等大量参考资料为依据，通过计算和分析对成形方法的可行性进行验证。在确定单工序之后，根据各工序的自身特点确定成形次数和工序的复合方式，然后利用三维建模软件UGNX画出每一个工步的三维简图，从而合理的表述其工艺流程，并通过软件模拟并研究解决软件成型过程中出现的回弹问题。最后，利用模具设计2D、3D CAD软件，对模具关键部件进行三维造型，用于模具制造和模具绘图。并且对其中2个关键工序（拉深成形和修边冲孔）进行模具设计，对其模具总装进行计算机绘图。并且拆绘其中的非标准零件，确定各零件的材料规格和技术要求。
通过这次毕业设计，在巩固以前所学知识的基础上，对冲压技术、模具设计、模具制造及计算机辅助设计和计算机仿真技术等方面的知识有了进一步的深入学习。所设计的模具能够达到实际使用要求，为该产品的成功开发提供技术保证。
关键词：板料冲压,模具设计,冲压工艺分析,风机叶片,回弹分析
ABSTRACT
Sheet stamping is the most important plastic working method and it's applied to automobile widely more and more. With the increasingly drastic market competition in automobile industry, it requires not only high production efficiency, but also optimized
control on the production process. So the continuous improvement of sheet stamping technique and process has been there search hotspot of sheet forming all along. With the swift and violent development of computer hardware and software, finite element method and computer graphics, the computer aided engineering (CAE) technology based on numerical simulation is widely used in sheet forming field.
The part this paper designed is the gas turbine compressor blade solid model, According to the three-dimensional the geometric shape and structure of the part was analysis to certain the forming method in the forming process of pars. Then, based on the large amount of reference material, the validation of forming methods was designed by calculation and analysis .In according with the characteristics of every process, the frequency and manner of composite process can be certain, after determining the single operation. Then, every step of three-dimensional diagram was painted with 3D modeling software UGNX, to express a reasonable representation of its process. Finally, using 2D mold design, 3D CAD software, the mold 3D modeling of the key components can be painted for mold and die manufacturing drawings. And of these two key processes (drawing and trimming and punching) Mold Design, Die assembly of its computer graphics. And demolition of painting the non-standard components, determine the components of material specifications and technical requirements.
Through this graduation project, in the consolidation of previous knowledge on the basis of stamping technology, tooling design, Die manufacturing and computer-aided design and computer simulation technology, and other aspects of knowledge has been further in-depth study. Die designed to achieve actual use requirements for the successful development of products providing technical assurance.
Key words：Sheet stamping, Die design, Analysis for stamping technology, Gas turbine compressor blade, Analysis of springback
目 录
摘 要 I
ABSTRACT II
1绪论 1
1.1引言 1
1.2国内外研究现状 1
1.3 课题目的及内容 2
1.4课题可行性分析 3
2工艺分析 4
2.1零件成形性分析 4
2.1.1结构及尺寸分析 4
2.1.2材料分析 5
2.2工艺方案的选择及确定 6
2.2.1冲压工艺卡片 7
3 拉深成型模拟分析 7
3.1冲压成形有限元仿真理论 7
3.1.1有限元控制方程的求解 8
3.2模拟分析思路及流程图 8
3.3拉深成形模拟 10
3.3.1坯料的展开 10
3.3.2成形过程模拟 12
3.3.3拉深成形方案的优化 15
4风机叶片拉深成形中的回弹问题 19
4.1 回弹基础理论 19
4.2回弹产生的机理 19
4.3板料回弹的影响因素 21
4.4板料回弹分析的建模方法 22
4.5回弹模拟过程 22
4.6 回弹补偿方法的确定 27
4.7回弹补偿结果 28
5模具设计 31
5.1概述 31
5.2模具设计（拉深模） 31
5.3 工艺零件设计 31
5.3.1成形零件 31
5.3.2 定位零件 35
5.3.3 卸料零件 35
5.3.4 模板和模架设计 36
5.4 模具的装配简图 38
6结论 39
参考文献 40
致谢 42
