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hollow punch
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     This paper discusses die construction of multiple ram forging-die construction to veparate horizontally,die construction to separate vertically,die construction to unite horizontal parting section with vertical parting section and peculiar die construction,and then,discusses main die design point of multiple ram forging about position of former,guiding device,dented die guiding,dented die for forging deep hollow,punch pin,push rod as well as die material.
     讨论多向模锻的模具结构水平分模模具结构、垂直分模模具结构、联合分模模具结构和特殊模具结构 ,在此基础上 ,又讨论多向模锻模具的型腔位置、导向装置、凹模导向、深孔锻件凹模、冲头、推杆等设计的要点以及模具材料的选用。
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  相似匹配句对
     Hollow Waveguides
     空芯光纤
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     Hollow Man
     透明人
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     DESIGN OF THE PUNCH WITH CAVITY
     带凸台零件用模冲的设计
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     Improvement in the Burring Punch
     翻孔凸模的改进
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     The hollow ball structure with divided segments made by punch press guarantees precision and quality,and(lowers) manufacture cost.
     阀芯采用空心球体结构和分段冲压成形加工工艺,有效地保证了球体的加工精度和质量,降低了生产成本;
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  hollow punch
A hollow punch-torque method was used to measure friction between tough pitch copper and three different lubricants.
      
Friction studies of tough pitch copper using a hollow punch-torque method
      


In this paper, hot extrusion technology and die designing process of a 340 mm-high cylinder are analysed. If once extrusion molding is adopted, present 3 150 kW oil press can′t account for the problem of part-extracting and pressure. A new die structure and twice extrusion technology are adopted, die was same in once/twice extrusion technology and hollow punch was designed in twice extrusion technology. The problem in once extrusion were solved. So a method to manufacture big parts in small machines was...

In this paper, hot extrusion technology and die designing process of a 340 mm-high cylinder are analysed. If once extrusion molding is adopted, present 3 150 kW oil press can′t account for the problem of part-extracting and pressure. A new die structure and twice extrusion technology are adopted, die was same in once/twice extrusion technology and hollow punch was designed in twice extrusion technology. The problem in once extrusion were solved. So a method to manufacture big parts in small machines was provided.

分析了高度为340mm的压气缸的热挤压工艺及模具的设计过程。如果采用一次挤压成形,现有3150kW压力机无法解决脱模和挤压力问题。采用新的模具结构,分2次挤压成形,将一、二序挤压凹模通用并且把第2序挤压凸模设计成中空式,很好地解决了以上问题,同时给出了一种在小设备上成形大零件的方法。

 
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