Cracking of H13 steel die blank for fan impellers was analyzed by means of SEM, EDS and metallographic microscope.
通过电镜、能谱分析、金相分析等手段对H13钢制风机叶轮模坯开裂进行了综合分析。
To introduce the points needed to be attended during machining the die blank and die sleeve and inserting die core.
介绍拉丝模模坯、模套的加工及模芯装镶过程中应注意的要点；
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。
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。
This paper mainly introduces structure and prinicipe of mouth bulging die for diffusion tube, calculation method of blank size and forming force, design technology of main work parts.
主要介绍扩散管胀口模具的结构与工作原理、毛坯尺寸及胀口力计算方法和主要工作部件的设计技术。
The optimization of blank layout is of great importance in the design of stamping die.
毛坯优化排样是冲压工艺数字化设计中的重要环节。
The general problems on press automation are analysed in this paper, including die structure, loading and unloading of workpiece, blank destacking, workpiece stacking and safety.
本文分析讨论了冲压自动化领域中的若干基本问题，包括模具结构、工件上下料、毛坯开垛上料、工件码垛、安全问题等。
The preparation treatment of the blank, the structure design of the cold-forging die and the manufacturing technical requirements were generated basing on practice experience.
根据实践经验总结了毛坯的制备处理、冷镦模具结构设计及加工技术要求。
The preparation treatment of the blank, the structure design of the backward extruding die and the manufacturing technical requirements of the main part are introduced.
介绍了毛坯制备处理、反挤压模具结构设计及主要零件的加工技术要求。
The optimization of drawing technique was researched, and the influence of different blank holder force and minimum die fillet radius on stamping forming was studied as well.
对该零件成形工艺进行了优化，研究了不同的压边力、最小模具圆角半径对冲压成形的影响，通过对模拟结果的分析得出了空调前板的最优化成形方案。
To reduce the cost and lead time of developing a trimming die, a method to obtain the trimming line in flange process is proposed on the basis of blank grid deformation.
为减少修边模的开发周期和成本，提出一种基于板料网格变形的修边线确定方法。
The effect of blank quality in cold extrusion on the damage way and service life of working parts (mould and die)is analysed, and some countermeasures presented.
分析了冷挤压毛坯质量对模具的工作部分（上、下凸模和凹模）的损坏形式和寿命的影响，指出了保证毛坯质量应采取的措施。
The forming defect of the bend forging and the influence of blank and die shape parameters are studied. All of these provide theoretical basis for practice.
分析了弯曲成形中出现的主要缺陷，提出了毛坯形状和尺寸、模具参数对成形质量的影响规律，为实际生产提供了理论依据。
The new technology of cross wedge rolling has been using in production of blank forming of oil ejector body. This article shows main design parameters about cross wedge rolling die.
介绍了一种楔横轧制坯—精密模锻成形喷油器壳体毛坯的新工艺，及楔横轧模具设计工艺参数的选取。
How to measure the frictional coefficient between sheet blank and die quantificationally by experiments is still a problem for the research work on sheet metal forming.
板料成形研究中的一个难点是如何采用实验方法定量测定板料成形过程中板料与模具之间的摩擦系数。
The preparation treatment of the blank, the structure design of the backward extruding die and the manufacturing technical requirements of the main part are int...
介绍了毛坯制备处理、反挤压模具结构设计及主要零件的加工技术要求。
The structure, main design parameters and work process of the compound die installed on single action press and working for blanking and drawing with constant blank holder pressure were presented.
介绍了用于单动压力机的新型恒压边力落料拉伸复合模的结构及主要设计参数和模具工作过程。
This technique is no longer restricted by the formal regularity of diamond polycrystal blank, and can give an effective tight protection to diamond polycrystal blank in wire-drawing die.
该工艺不受人造聚晶金刚石外形及尺寸的限制，可对拉丝模中的人造金刚石聚晶块提供有效的紧固保护。
Accroding to the structure characteristics of the Santana brake pad, determined product stamping process and blank size, the die design method was introduced, and solved the bending spring back.
根据桑塔纳汽车刹车片卡子结构特点，确定该产品的冲压工艺和产品展开尺寸，介绍模具设计方案，解决产品弯曲回弹问题。
Cross wedge rolling technique is introduced in this article and this kind of technique is applied to spanner blank forming. This article shows main design parameters about cross wedge rolling die.
介绍了楔横轧成形工艺及其在双头呆扳手制坯上的应用，阐明了楔横轧模具的主要设计参数。
According to numerical analysis, the proper blank shape, the design of bend die and finished die structure were designed.
通过数值模拟提出了合理的自由锻制坯形状，弯曲模具和终锻模具结构的设计。
Structure design and material choice of important parts such as the die, blank holder, etc. were stated in detail. Also, fine blanking clearance was analysed and selected.
详细阐述了光洁冲裁凹模、压边圈等重要零件的结构设计与选材，并对光洁冲裁间隙进行了分析和选择。
Therefore, to maintain uniform temperature distribution of the blank is crucial for the cooling system design of the die.
因此使板料在成形过程中保持均匀的温度分布是模具冷却系统设计的关键。
The preparation and treatments of the tips blank and structure design of the cold upsetting die were introduced.
介绍了漏嘴坯制备处理及冷镦模具结构设计。
The blank layout of the CAM part, the calculation of the fine blanking force and the design of the die structure were introduced.
介绍了凸轮零件的排样、精冲压力计算及模具结构设计。
A new processing technique for seamless tubes manufacture of austenitic stainless steel is introduced in the present work, in which die casted hollow blank is directly used for a hot extrusion.
介绍了一种新的奥氏体不锈钢无缝管材制备工艺，即对空心铸坯直接热挤压制备荒管。
The pipe blank dimensions and the necking force were calculated. The structure of necking die for the flame pipe was introduced.
确定了缩口次数并计算了管坯尺寸和缩口力。
The design of drawing die with assembled-fixed blank holder device was introduced.
探讨了其工作零件的设计和安装，同时也讨论了其特殊压边装置的设计方法。
The design of drawing die with assembled-fixed blank holder device was introduced.
探讨了其工作零件的设计和安装，同时也讨论了其特殊压边装置的设计方法。
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