Bulging die for forging aluminum alloy wheel

Abstract

A bulging die for forging an aluminum alloy wheel comprises an upper die plate and a lower die plate. A lower die core is fixed above the lower die plate through a lower supporting plate. An upper die core is downward fixed to the upper die plate. A punch pin is downward arranged at the center of the bottom of the upper die core. A hole punching female die is arranged at the center of the upper portion of the lower die core. A discharge passageway is downward arranged on the portion, below a center hole of the hole punching female die, of the lower die core. A material receiving plate which outward extends out of the lower supporting plate is arranged at the outlet position of the bottom of the discharge passageway. A vertical guide column is upward arranged on the lower supporting plate. A positioning through hole which is matched with the guide column is formed in the upper die plate. The bulging die is convenient to detach, assemble and replace, a center hole of a finish-forged workpiece is punched through a punch pin downward arranged at the center of the bottom of the upper die core so that punched materials can slide out of the die along the material receiving plate, time for subsequently machining the center hole is effectively shortened in the center hole punching process, positioning is provided for subsequent machining, and mechanical performance of products is improved.

Description

technical field [0001] The invention relates to a die, in particular to a bulging die for forging an aluminum alloy wheel. Background technique [0002] The forging method of aluminum alloy wheels began in China at the beginning of this century, which is a new technology. Forged aluminum alloy wheels have been widely used in passenger cars, trailers, tank trucks, engineering vehicles, school buses and other vehicles, but the forging dies for forging aluminum alloy wheels are still in the growth stage in China, and the traditional bulging dies are not convenient for disassembly and maintenance. , and the workpiece after final forging cannot be flash removed, which greatly prolongs the subsequent processing time. The products forged by traditional dies are short of materials, have poor mechanical properties and low product qualification rate. Contents of the invention [0003] The technical problem to be solved by the present invention is to propose a bulging die for forgin...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved in the present invention is to propose a bulging die for forging aluminum alloy wheels that is convenient for disassembly and maintenance, and can solve the problem that the workpiece cannot be trimmed after final forging.

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