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过去由于型面复杂、无法设计成整体而必须用紧固体连接的一些组合件,在应用超塑成形工艺之后便可重新设计成一个单片构件而减少了重量和成本。超塑性成形的零件没的残余应力,因此没有回弹;与传统的落锤成形比较,超塑成形不需要精确吻合的阴模与阳模而只需一个摸具,这样不仅减少了模具制造成本,也缩短了调整模具所需要的时间。由于模具较简单,对于生产量在50～10000件的零件应用超塑成形在成本上特别有竞争力。在超塑形(SPF,SUPER PLASTIC FORMING)中气体压力较低,只需2MPa左右,与大多数标准的金属成形与锻造工艺不同,SPF不因零件尺寸增大而需要增加成形压力,因此,尺寸较大的板金零件特别适合于应用SPF以发挥其优点,目前
In the past, due to the complexity of the profiles, some of the assemblies that could not be designed as a whole and had to be fastened together were redesigned into a single piece after the application of the superplastic forming process to reduce the weight and cost. Compared with the traditional drop weight forming, the superplastic forming does not need exactly matching negative and positive molds and only needs a touch mold, thus not only reducing the manufacturing cost of the mold , But also shorten the time required to adjust the mold. Due to the simple mold, the application of superplastic forming for parts with a production volume of 50 to 10,000 pieces is particularly cost-competitive. In SPF (SUPER PLASTIC FORMING) gas pressure is low, only about 2MPa, with most of the standard metal forming and forging process, SPF does not increase the part size due to the need to increase the forming pressure, so the size Larger sheet metal parts are particularly suitable for applying SPF to their advantage, at the moment