拔模斜度

它能制造没有拔模斜度和缝脊的复杂形状铸件。

This can make complex shaped castings without any draft or flash .

拔模斜度余量只有经与铸造厂商定后才能合并到尺寸公差或形位公差中。

Draft allowances can be incorporated into dimensional tolerances or geometric tolerances only upon consultation with the foundry .

此方法有效地解决了传统UV-LIGA方法中的倒拔模斜度的问题。但因直齿圆柱齿轮不允许有拔模斜度，使其挤压成形在模具设计上有一定的难度。

This method solves the problem of negative demoulding taper occured in traditional UV-LIGA . But spurs gears have some difficulties in extrusion for they have no drawing slope .

镦挤拔模斜度对成形的影响规律研究

Study on the law of influence of drafting angle on upset-extruding

法兰轴类锻件顶锻拔模斜度的设计

To design the draft angle of upsetting die for flanged axle-type forgings

但因直齿圆柱齿轮不允许有拔模斜度，使其挤压成形在模具设计上有一定的难度。

But spurs gears have some difficulties in extrusion for they have no drawing slope .

根据摩托车档位齿轮的产品特点，进行成型工艺分析优化，获得合理的产品精化毛坯，拔模斜度等参数，获取产品的预成型毛坯尺寸。

The rational rough and technological parameter of profile modified gear is gained by analysis and optimizing of forming , and the preliminary shaping size of product is defined .

新型精压模的上模设有顶件装置，锻件半轴的拔模斜度小，锻件半轴的金属敷料少。

There is a shedder on the upper die of the new type of finish forging die , so that pattern draft angle of half axle of forging is small , oversize for machining is little .