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浅析级进模的排样设计甘肃省天水213机床电器厂赵曦1引言级进模的排样设计在级进模的设计中占很重要的地位,它具体反映了零件的整个冲制过程,以及工位数量、各工位的安排、步距大小、定距方式,同时也反映出模具的基本结构。工件质量等。2级进模的使用要求在设计级... 相似文献
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级进模料带排样设计的合理对提高生产效率、降低材料成本至关重要。本文通过实例对级进模料带排样设计要点和经验进行总结,对此类设计有较强的指导和借鉴作用。 相似文献
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多工位级进模排样设计的合理对模具生产的稳定性、生产效率及降低制件的成本等至关重要,本文通过生产中的实例说明对多工位级进模带料的排样设计要点和实践中所得的经验进行分析总结,经过多年来的生产验证,所例举的排样设计合理,具有较高的生产效率。对同类制件的排样设计具有一定参考价值。 相似文献
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CAD/CAM系统在造型等功能的进一步发展似乎已经有很长时间没有重大的突破,各CAD/CAM开发商,纷纷将系统功能的完善寄希望于其他能为系统功能增值的方面,如有的系统对产品的生命周期和生产管理等辅助功能的开发和推广,各开发商为此绞尽脑汁,进行了巨大的投入,借此提升系统的价值和延长系统的生命周期。最近,在一个偶然的机会,得以接触和 相似文献
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基于AutoCAD的级进模排样系统设计 总被引:1,自引:0,他引:1
针对级进模难于实现自动化排样问题,利用VBA开发工具开发和设计了一套基于AutoCAD平台的级进模排样系统,该程序能够自动生成级进模各工位的冲切刃口和外形,实现级进模的自动排样。 相似文献
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赵亚夫 《锻压装备与制造技术》2017,52(4)
角部雨檐是铁路客车车体关键零部件,由于板料成形各处变形相差较大,制件成形后产生翘曲和边线参差不齐等诸多质量问题。本文全面分析了角部雨檐原有成形工艺及成形需要克服的难点,提出了一种全新的成形工艺和模具结构,并应用在生产实际中,取得良好效果。 相似文献
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传统板类零件角部成形工艺工序繁琐且成本较高。文章针对这些缺点,提出角部拉深成形新方法;设计了某板类零件角成形模具结构。该模具包括角部拉深成形结构与余料裁剪结构。利用DYNAFORM5.6软件对厚度为1mm的铝合金方板的角部成形过程进行模拟与实验,结果显示,采用角部成形新方法无需在板料两邻边开槽,即可一次拉深成形角部,而且可省去后续焊接、打磨等工序,生产效率大大提高;成形角部无褶皱,外表光滑美观。 相似文献
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A process design approach for multi-stage stretch forming was proposed by combining the strain distribution method and finite element method (FEM) to determine the minimum stage number and deformation amount of each stage. The strain distribution method was used to calculate the deformation amount of each stage and evaluate the formability through a safety criterion. FE simulation was taken as an analysis tool to reveal the deformation behaviour, to predict the strain contour and to determine the process parameters at each stage. To evaluate the effect of heat treatment after pre-strain on occurrence of deformation defects during the subsequent deformation, a multi-stage uniaxial tension test for 2B06 aluminium alloy sheet was carried out. A case study demonstrates that the approach has high reliability and good practicability. 相似文献
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介绍了螺旋形板类零件成形模具的设计方法及工作原理,通过对不锈钢螺旋板的成形工艺及设计方案进行分析、比较,阐述了采用试验螺旋导程回弹量参数设计模具的合理性及采用成形模进行成形的合理性,对类似产品的模具设计具有一定的参考价值. 相似文献
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Process planning for laser-assisted forming 总被引:4,自引:0,他引:4
Laser forming has emerged as a viable means of assisting conventional forming processes with geometrical accuracy-related problems. By combining the incremental nature of laser forming with conventional processes such as brakeforming which forms material by a single continuous movement of the tooling, the exact specified bend angle and radius of curvature of the bent component may be approached. This may be achieved by sequential or simultaneous application of the conventional tooling and the laser beam. The laser beam may be applied once to the forming zone or multiple laser beam scans may be used.
The combined process allows the forming of highly accurate sheet metal products in a cost effective way, through the possibility to make corrections to the bend angle in a controlled way. Furthermore, the combined process makes it possible to form intricate products that cannot be bent on a press brake due to collision problems or problems emanating from spring-back.
Consequently there are new implications for process planning in brakeforming when a laser beam is used in combination. These implications are discussed for some primitive applications. 相似文献
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阐述了特种电机端罩冲压工艺方案.基于压杆稳定理论,探讨了该制件镦压凸肩的工艺条件,计算了所需的工艺力,介绍了其镦压成形模具的设计结构、工作原理.该模具已经投入实际生产使用,完全满足制件制造质量要求和企业新产品开发的需要. 相似文献