A Small Deformation Large Thickness Aluminum Alloy Sheet Blanking Die

Abstract

The invention provides a large-thickness aluminum alloy sheet blanking die with small deformation, which includes a die and a punch. A discharge hole is opened in the center of the die, and the punch and the discharge hole of the die are arranged concentrically and directly opposite to each other. , and the diameter of the punch is smaller than the diameter of the discharge hole, and the outer wall of the punching end of the die is a tapered surface, so that the punching end of the die forms a punching edge. The invention controls the deformation of the processed parts by controlling the angle at the cutting edge of the die and the gap between the die and the punch, including the radial displacement and axial displacement around the punching hole, that is, the contact position between the part and the die, and the amount of displacement of the part. Warping size, etc., the deformation of the parts after processing is small; for aluminum alloy parts with a thickness of 50mm, it takes about 30s to drill holes, but the punching time of the present invention is 10s, which reduces labor intensity and greatly improves production efficiency.

Description

technical field [0001] The invention belongs to the technical field of dies, and in particular relates to a large-thickness aluminum alloy sheet blanking die with small deformation. Background technique [0002] The hole forming of aluminum alloy parts with large thickness (such as aluminum alloy wheels) generally adopts the drilling method. This method can ensure that the deformation of the parts after processing is within a controllable range, but the efficiency is low. For example, for aluminum alloy wheels with a thickness of 50mm Drilling takes twice as long as punching. For the cost of tools consumed in the production of a unit of product (drill cost for drilling and die cost for punching), drilling is nearly twice as much as punching. In addition, the drilling operation has high labor intensity and poor automation. [0003] At present, there is also a punching method for forming such aluminum alloy holes, but the deformation is large, the parts are prone to cracking...

AI Technical Summary

Problems solved by technology

In addition, the drilling operation is labor-intensive and the degree of automation is poor.

[0003] At present, there is also a punching method for the formation of such aluminum alloy holes, but the deformation is large, and the parts are prone to cracking after punching, the processing accuracy cannot be guaranteed, and the yield is low.

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