Triple-gear process of one-time heating continuous forging precision forming through bridge

Abstract

The invention relates to a triple-gear process of a one-time heating continuous forging precision forming through bridge. The triple-gear process is characterized by comprising the following processing steps in sequence: (1) heating forging blanks: heating the forging blanks to the pre-forging temperature of 1040 DEG C to 1060 DEG C in an intermediate frequency furnace; (2) performing rough forging and forming; (3) performing rough forging and forming tapered teeth; (4) removing surface scale from forgings with superhigh-pressure water; (5) performing finish forging and forming: performing finish forging and forming the shapes of the tapered teeth so as to prepare finish forgings, wherein no machining is needed in the next step; and (6) isolating the surfaces of the finish forgings from air, and performing anti-oxidation treatment: covering the surfaces of the finish forgings with silver sand, and isolating the surfaces of the finish forgings from outside air, so that the finish forgings are prevented from being oxidized. The triple-gear process has the advantages of one-time heating, water recycling, water conservation, scale removal, good wear resistance, good finish forging andforming quality of the shapes of the tapered teeth, air oxidation resistance of forgings, good forging forming quality, high precision, high production efficiency, material saving, low production cost, energy conservation and long service life. The triple-gear process can be widely applied to wheeled vehicles.

Description

technical field [0001] The invention relates to a process of one-time heating continuous forging precision forming through-bridge triple gear, which can be widely used in wheeled vehicles. Background technique [0002] At present, the design structure of domestic heavy truck bridges adopts triple gear transmission in the middle bridge. The traditional process has the disadvantages of complicated procedures, time-consuming and laborious, high scrap rate, low production efficiency, poor precision, low strength, and high production costs, especially for gear forging. The final oxidation problem is serious, and the post-processing will increase a lot of costs, and even cause a large batch of defective products, and the performance of the product will also be reduced. Because the forging process cannot effectively control the oxidation of the bevel tooth part, it will be damaged during work. The gear will cause pitting and the service life will be short. Contents of the inventi...

AI Technical Summary

Problems solved by technology

[0002] At present, the design structure of domestic heavy truck bridges adopts triple gear transmission in the middle bridge. The traditional process has the disadvantages of complicated procedures, time-consuming and laborious, high scrap rate, low production efficiency, poor precision, low strength, and high production costs, especially for gear forging. The final oxidation problem is serious, and the post-processing will increase a lot of costs, and even cause a large batch of defective products, and the performance of the product will also be reduced. Because the forging process cannot effectively control the oxidation of the bevel tooth part, it will be damaged during work. Pitting corrosion of gears and short service life

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