Wrinkling usually happens in the punching process of curved surface sheet metal.
曲面板件在冲压成形时常常发生起皱现象。
The punching process of the lead frame was analyzed, the multi-position progressive die was designed.
分析了引线框的冲压工艺性，设计出了多工位级进模。
Through analyzing the punching process for the supporting pipe, introduced various processing characteristics.
通过对支撑管零件冲孔工艺进行了分析，介绍了各种加工工艺的特点。
The punching process and die structure design of precision punching gear piece were introduced. hoped it to be a reference for die design of similar parts.
介绍了精冲片齿轮的工艺方法及模具结构设计，希望能为类似零件模具设计提供参考。
In this paper two contents are studied: the data library of mold standard parts, dynamic simulation of the punching process and the mold's mechanical-electrolytic polishing.
本文进行了模具标准件数据库、冲压过程动态仿真和模具的机械电解复合抛光技术两方面内容的研究。
The punching process of the lead frame was analyzed, the multi-position progressive die was designed. and the technology points of die design and manufacture were introduced in detail.
分析了引线框的冲压工艺性，设计出了多工位级进模。并详细介绍了模具设计制造的技术要领。
The process of punching a well hasn't changed in a century.
打井的过程已经持续了一个世纪而没有变化。
By observing and analyzing cold punching process at the factory, the cause of the crack formation was found.
通过对冷冲压过程的实地观察分析，找准了裂纹产生的原因。
Be experienced in cold punching tooling design and improvement, be familiar with the design and process of worm clamps.
有冷冲模具设计，改进经验；熟悉蜗轮蜗杆卡箍类产品的设计及生产工艺者优先；
The hot forming process of cannonball body semiproduct is mainly composed of four operations: pressing, punching, ironing, and shell nosing.
炮弹弹体毛坯热精密成形过程主要由压型、冲孔、引伸和收口四道工序组成。
The actuality and development of automotive cover panel punching process are introduced and the characters and selection method of punching production lines was summarized.
介绍了我国汽车车身覆盖件冲压生产工艺的现状和发展趋势，总结了各类冲压生产线的特点和选择生产线的方法；
Punching process is a high production efficiency, no or less process methods, in the economic and technical aspects which has many advantages.
冲压工艺是一种生产效率很高的、少切屑或无切屑的先进加工方法，在经济和技术方面都有很多的优点。
Analyzing the craft features of a punching piece, ascertain the process and scheme of a progressive die blank layout, and the design of main die working parts and final assembly structures.
通过该冲件特点的工艺分析，确定级进模排样方案过程和模具主要工作零件及模具总装结构设计。
By means of this new kind of welding material and the corresponding surfacing process, some cold punching dies have been repaired and manufactured which function well during practical application.
采用研制的堆焊材料及相匹配的堆焊工艺成功地堆焊制造与堆焊修复了一批冷冲模具，经工况运行表明效果良好。
With the application process, the finite element method, principle and influencing factors of automobile cover punching are described.
结合这一应用过程阐述了汽车覆盖件冲压数值成形有限元方法、原理及影响因素。
Based on study of punching process requirements and processing sequence, the polychromatic sets theory was applied to construct the mathematical model of punching process planning.
在研究冲压工艺加工需求和加工工序的基础上，应用多色集合理论建立了冲压工艺规划的数学模型。
Punching is a kind of pressure process method that punching dies are used in press sheet to put pressure on the plastic deformation or separation, for a certain shape and size of components.
冲压是利用冲压模在压力机上对板料或热料施加压力使其产生塑性变形或分离，以获得具有一定形状和尺寸的零件压力加工方法。
A drawing process for sealing cover of automobile connecting rod and a method of chamfering by punching were analyzed. The die structures designed for the key procedures were introduced.
分析了汽车连杆油封盖拉伸工艺及用冲压成形完成倒角的方法，介绍了关键工位的模具结构。
Furthermore, the trimming, smooth punching, related process and punching die of high-precise instrument parts are introduced respectively.
介绍了高精度仪表零件的整修、光洁冲裁及相关工艺及冲模。
Based on main characteristics of punching and flanging process, this paper describes the design of rules to stamping features.
该文针对冲孔、翻孔两类板材冲压成形工艺方法的主要特点，设计了两类成形件的特征识别规则。
The decomposing process of punching, layout, die structure, work principle and design of key part of die are introduced.
介绍了冲压工艺分解过程、排样图、模具结构、工作原理以及模具关键零部件的设计。
Analyzing the craft features of a punching piece, ascertain the process and scheme of a progressive die blank layout, and the design of main die working parts and final assembly structures.
分析了支架的冲压工艺，给出了排样设计方案和相应的模具结构，并就主要零件设计加工中应注意的问题进行了分析，提出了解决办法。
The tube punching processes are classified and defined in this paper. The characteristics and application ranges of the various tube punching process are compared.
对管材冲孔工艺进行了归纳分类与定义，并比较了各类冲孔工艺特点及其适用范围。
Analyzed forming process of the fixed frame in automobile steering system, mainly introduced side hold punching die structure design.
分析了汽车转向系统中固定架的成形工艺，主要介绍了冲侧孔的模具结构设计。
The reasons of scrap rising and missing material during the working process of punching die are analyzed, and the solving methods in theory and actual manufacture are provided.
分析了在冲裁模工作中，废料上浮及不带料产生的原因，以及在理论、实际生产中的解决办法。
The utility model relates to a diaphragm punching machine used in the manufacture process of a button battery.
本实用新型涉及一种用于扣式电池生产过程中的隔膜冲切机。
The manufacture process of aluminum foil was analyzed, explained the performance and the merit of the polyurethane rubber punching die.
分析了铝钎焊料的加工工艺，说明了聚氨酯橡胶模的性能和优点。
This article describes the in-field fabrication process of those steel structures, such as lining, shear, groove preparation, punching hole, bending, assembling and welding etc.
介绍了火电厂承重钢结构的现场加工制作、划线、剪切、坡口加工、打孔、弯制、拼装及焊接等工艺过程。
This article describes the in-field fabrication process of those steel structures, such as lining, shear, groove preparation, punching hole, bending, assembling and welding etc.
介绍了火电厂承重钢结构的现场加工制作、划线、剪切、坡口加工、打孔、弯制、拼装及焊接等工艺过程。
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