Hub extrusion forming method

A technology of extrusion forming and wheel hub, applied in the direction of wheels, transportation and packaging, metal processing equipment, etc., can solve the problems of complex forming equipment, reduced material utilization rate, increased production cost, etc., to achieve a simple and easy forming process, improve material Utilization rate, the effect of saving production costs
CN110508737AActive Publication Date: 2019-11-29NANJING UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NANJING UNIV OF SCI & TECH
Publication Date
2019-11-29

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Abstract

The invention discloses a hub extrusion forming method. A hub is produced and manufactured in a pre-forging and final forging two-step extrusion forming mode. In the pre-forging stage, a rim and an inner rim portion of the hub are extruded and formed through downward reverse extrusion motion of a pre-forging upper male die, and an outer rim and wheel arm parts of the hub are extruded and formed through the downward extruding motion of a final forging upper die in the final forging forming stage. The hub producing and manufacturing process by adopting the forming method is simple, the production efficiency is high, the forming pressure is smaller, the near-net forming material utilization rate is high, and the hub mechanical performance is more excellent.
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Description

technical field

[0001] The invention belongs to the technical field of hub forming, in particular to a hub extrusion forming method. Background technique

[0002] The existing wheel hub forming methods mainly include: 1. The cast hub is obtained by die-casting. The die-casted hub often has congenital defects such as shrinkage, shrinkage, and coarse grains, which lead to less than optimal performance of the hub. , unable to give full play to its supposed excellent mechanical properties; 2. Upsetting-reverse extrusion-flaring-spinning and bulging, the production efficiency of this forging and spinning forming method is low, the forming equipment is complicated, and after forming The forming quality of the wheel hub is not good, there are defects such as cracks and folds on the surface, the utilization rate of the material is reduced, and the production cost is greatly increased. Contents of the invention

[0003] The purpose of the present invention is to provide a wheel hu...

Claims

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