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The progressive die in the body manufacture is developing ratime：2017-10-14 16:05On the automatic punching machine with progressive die or rotor, stator plate combination die processing, or applied to plugging operation, is known as the stamping technology, in recent years, the progressive combination die started getting more and more extensive application in automobile body manufacturing, progressive die with the coiled material directly to the processing and stretch for molding parts. The machining parts are also getting bigger and bigger, which eliminates the following procedures such as cutting, oil and slab transportation of the plates which are necessary for the production of multi-station presses and die sets. Progressive combination die has been widely used in automobile industry in the United States, its advantage is that productivity is high, the mould cost is low, don't need sheet metal shear, compared with multistage pressure machine use ladder model, save 30%. But level into the application of the combination die technology by stretching depth, orientation and transport the limitation of the strip edge material surface hardening, it is mainly used for the simple components of the drawing depth is shallow, so you can't completely replace transfer press, most of the parts should be considered in multi-station press eugenics processing.