Die for stamping forming of flange by using rolled steel plate and machining method

Abstract

The invention provides a die for stamping forming of a flange by using a rolled steel plate and a machining method, and belongs to the technical field of sheet metal stamping. The die comprises a convex die body, a concave die body and an extrusion die body, a blank is placed between the convex die body and the concave die body, the extrusion die body is placed at the other side of the concave diebody, the outer diameter size of the convex die body is consistent with the inner diameter size of the flange, and the diameter of the small circular surface of the convex die body is equal to or slightly smaller than the inner diameter of the blank. The method comprises the following machining steps of blank preparation, heating, stamping, extrusion and machining. The die for stamping forming ofthe flange by using the rolled steel plate and the machining method have the advantages that an existing flange machining process is changed, the machining method for stamping the flange by using therolled steel plate is provided, the production yield is effectively increased, the material utilization rate is increased, the machining allowance is low, and the production cost is greatly reduced;through stamping and extrusion forming and machining on surfaces, trimmings and the like, the integrity of metal fibers of the flange is not destroyed, the mechanical properties of the flange are ensured, and the strength is improved.

Description

technical field [0001] The invention relates to the technical field of plate punching, in particular to a die and a processing method for stamping and forming flanges of rolled steel plates. Background technique [0002] Flange is a widely used connecting device. In general, flange processing mainly adopts casting, forging, and then machining. The main problems are: the material utilization rate of the casting method is low, and forming defects such as shrinkage cavities and porosity are prone to occur inside the casting; the quality of the forging method is good, but there are many production processes, high energy consumption, low production efficiency, and large machining allowances. Disadvantages; In addition, there are also such problems in the turning method. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a mold and a processing method for stamping and forming flanges of rolled steel plates. The method us...

AI Technical Summary

Problems solved by technology

The main problems are: the material utilization rate of the casting method is low, and forming defects such as shrinkage cavities and porosity are prone to occur inside the casting; the quality of the forging method is good, but there are many production processes, high energy consumption, low production efficiency, and large machining allowances. Disadvantages; In addition, there are also such problems in turning methods

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