Thinning drawn punching process and die
A thinning, deep drawing and process technology, applied in the field of stamping technology, can solve the problems of single-process processing of multiple pairs of molds, and achieve the effects of high processing accuracy, improving processing efficiency and avoiding precision errors.
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[0044] Embodiment 1, the present embodiment is a kind of such as figure 1 , figure 2 The deep-drawing and thinning hole-drawing process of the product shown, the structural characteristics of this product are: the material thickness is 2mm SPCC cold-rolled steel plate 1, the outer diameter of the deep-drawing hole 2 is φ9+0 / -0.3mm, and the height of the hole wall 3 is 9±0.5mm, the outer diameter of the product is φ46±0.1mm, and 3 drawing and thinning holes are processed on the circumferential position of φ33, and the evacuation positions are evenly distributed, smooth and without obvious steps4. Due to the limited size of the product, it is impossible to use the material storage shrinkage cavity deep drawing process, and the material can only be deeply deformed and extruded within a limited size range. The deformation far exceeds the deformable range of the material itself. It belongs to the cold stamping extrusion deformation process.
[0045] A thinning and deep drawing h...
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