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Method for processing drive axle half-axle gear by hot forging

A side gear and drive axle technology, which is applied in the field of hot forging of drive axle side gears, can solve the problems of low material utilization rate, complex shape of side gears, low processing efficiency, etc.

Inactive Publication Date: 2011-08-31
蒋永宋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The shape of the side shaft gear is very complicated. Its shape is composed of a bevel gear and a stepped cylinder. Its inner shape is an inner spline, and it has high requirements for machining accuracy and mechanical performance. The gear shape is processed by milling, planing, forging blind holes, etc. This processing technology has low material utilization rate and low processing efficiency, and the equipment investment and tool cost are high.

Method used

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  • Method for processing drive axle half-axle gear by hot forging
  • Method for processing drive axle half-axle gear by hot forging

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Embodiment Construction

[0014] As shown in Figure 1, a method for processing the drive axle side gear by hot forging, the present embodiment selects 457 rear axle side gear, and the hot forging process steps are as follows:

[0015] Step 1, unloading, down a predetermined volume of round steel billet 1;

[0016] Step 2, heating the billet, putting the round steel billet 1 into the intermediate frequency furnace, heating it to 850-900 ℃ by electric current, and keeping the temperature for 6 minutes;

[0017] Step 3, lead-in, put the heated round steel blank 1 into the lead-in die, carry out preliminary lead-shape, and obtain the lead-in part 2 with blind holes and no teeth;

[0018] Step 4, rough forging, first remove the oxide layer on the lead-in part 2, then put it into the rough forging die, and carry out rough forging to obtain the rough forging part 3 with blind holes and teeth;

[0019] Step 5, trimming, put the rough forging 3 into the trimming die, and cut off the flash in the large outer ci...

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Abstract

The invention relates to a method for processing a drive axle half-axle gear by hot forging. The drive axle half-axle gear processed by using the method has the advantages of high accuracy, high quality and excellent rigidity and toughness. The method disclosed by the invention mainly comprises the following steps of: heating a blank, and then performing molding, rough forging, punching, fine forging and other process steps. In the method, the whole process flow can be completed under the condition that the original blank is heated only once in the production process; time and electricity are saved; and the prepared drive axle half-axle gear has the advantages of high accuracy, good mechanical strength and the like.

Description

technical field [0001] The invention relates to a hot forging method in the technical field of forging, in particular to a hot forging method for a drive axle side gear. Background technique [0002] The shape of the side gear is very complex. Its shape is composed of a bevel gear and a stepped cylinder. Its inner shape is an inner spline, and it has high requirements for machining accuracy and mechanical performance. The gear shape is processed by milling teeth, planing teeth, forging blind holes, etc. This processing technology has low utilization rate of materials and low processing efficiency, and equipment investment and tool costs are high. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to overcome the deficiencies of the prior art, and propose a method for machining the drive axle side gear by hot forging, so that the machined drive axle side gear has high precision, high quality and good rigidity and toughness. [0004] The processing te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J5/02
Inventor 蒋永宋
Owner 蒋永宋