Novel forging process of vehicle rear wheel hub axle and special wedge-shaped die thereof
A rear wheel hub and new process technology, which is applied in the field of metal parts forging and processing, can solve the problems of low material utilization rate, poor product quality, cumbersome processes, etc., and achieve the effect of simple process, fewer circulation times, and improved product quality.
Inactive Publication Date: 2011-02-02
SHANDONG JINMA INDAL GROUP
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Problems solved by technology
This process needs to heat the blank twice, die forging twice and remove the flash twice, the process is cumbersome, the material utilization rate is low, waste of energy, waste of manpower, and poor product quality
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[0014] Below in conjunction with accompanying drawing, the present invention is described in detail as follows:
[0015] As shown in the above drawings, the present invention discloses a new forging process for the rear hub shaft of an automobile, which includes the following steps: (1) heating process, that is, heating the initial blank 2 to 1000°C-1300°C; (2) blank making process, that is, heating The final initial billet 2 is made into a billet through the roll 1 and the wedge-shaped die 3, and the volume of the billet is reasonably distributed to obtain two symmetrical preforms 4, so that the shape of the preform 4 is more in line with the forging die cavity; (3) cutting process, that is, the above-mentioned Two symmetrical preforms 4 are cut and separated; (4) die forging process, that is, the above-mentioned preform 4 continues to be deformed to obtain a final forging; (5) edge trimming process, that is, cutting flash to obtain a final qualified forging.
[0016] The new...
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The invention discloses a novel forging process of a vehicle rear wheel hub axle and a special wedge-shaped die thereof. The process comprises the following specific flows of: (1) heating procedure: heating an initial blank to 1,000-1,300 DEG C; (2) blank manufacturing procedure: manufacturing the heated initial blank into a blank through a roller and a wedge-shaped die, reasonably allocating the volume of the blank to obtain two symmetrical prefabricated blanks and ensuring that the shapes of the prefabricated blanks more conform to a forging die impression; (3) segmenting procedure: segmenting and separating the two symmetrical prefabricated blanks; (4) die forging procedure: continuously deforming the prefabricated blanks to obtain a final forged piece; and (5) trimming procedure: cutting trimmings to obtain a final qualified forged piece. In the whole process flow, a product can be forged and molded only with once heating and once die forging, thus the process has the advantages of simple procedures, fewer turning numbers of times, raw material saving, energy consumption reduction and production efficiency improvement.
Description
technical field [0001] The invention relates to the technical field of forging processing of metal parts, in particular to a new forging process of an automobile rear hub shaft and a special wedge-shaped mold thereof. Background technique [0002] The rear hub axle is mainly used in small cars. It connects the rear axle, rear wheel brake system and rear wheel of the car, and is an important part of the car. Since the rear hub shaft requires high strength, toughness, mechanical properties and dimensional accuracy, and the structural section of the rear hub shaft changes greatly, vertical forging cannot be heated once and needs to be heated twice. The general process is: heating→die forging →Car flashing→heating→die forging→trimming→shaping. This process needs to heat the blank twice, die forging twice and remove the flash twice. The process is cumbersome, the material utilization rate is low, energy and manpower are wasted, and the product quality is poor. Contents of the ...
Claims
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Login to View More IPC IPC(8): B21J13/02B21K7/12
Inventor 马祖文赵昌德郭建春刘虹许峰
Owner SHANDONG JINMA INDAL GROUP