Forging process of heavy truck steering knuckle

Abstract

The invention relates to a forge piece blank of a car component, in particular to a forging process of a heavy truck steering knuckle. During the process of manufacturing the heavy truck steering knuckle, a medium-frequency induction furnace is used for heating, and a blank of a fire molding product is manufactured by using 6, 300 tons of hot die forgings to perform closed extrusion. The technological parameters of the whole process are controllable and the economic benefit is considerable; by utilizing the forging process, the use ratio of the material can be increased by about 15%, and meanwhile the production efficiency is improved by five times and the labor is reduced by 50%; and the quality of the product is in a controllable state because of being undetermined, a mold can be used for producing five thousand to eight thousand products, and auxiliary blank manufacturing devices and persons are omitted.

Description

technical field [0001] The invention relates to a forging blank of auto parts, in particular to a forging process of a steering knuckle of a heavy truck. The invention can meet the technical development and production requirements of the forging die for the steering knuckle of the front wheel of a heavy truck. Background technique [0002] The steering knuckle for heavy-duty trucks belongs to the long-stem type steering knuckle with special-shaped parting. The blank is a complex forging with a complexity coefficient of S4. The traditional production method is to use a square billet or bar to produce it. The weight of the material is generally 46Kg~48Kg. It is heated to 1050 ° C ± 100 with a gas furnace, and the 750 Kg air hammer is used to throw it out. The rod part is then put into the forming mold and formed with a 5-ton forging hammer. The output is more than 100 pieces in 8 hours a day. The heating time of the raw materials in the traditional process is based on 3 tons o...

AI Technical Summary

Problems solved by technology

The blank is a complex forging with a complexity coefficient of S4. The traditional production method is to use a square billet or bar to produce it. The weight of the material is generally 46Kg~48Kg. It is heated to 1050 ° C ± 100 with a gas furnace, and the 750 Kg air hammer is used to throw it out. The rod part is then put into the forming mold and formed with a 5-ton forging hammer. The output is more than 100 pieces in 8 hours a day. The heating time of the raw materials in the traditional process is based on 3 tons of raw materials. Each furnace takes at least 2 hours, and two furnaces need 4 hours. The heating time requires one person to operate, three people are needed to make the billet by air hammer, the billet making time is at least 90 seconds, two people are required to forge for 5 tons of hammer ton, and the forging time is 30 seconds. 20 seconds, two operators are needed, so 8~10 people are needed to cooperate with the production, the parameters in the production process are not easy to control, the intermediate process takes a long time, the metal temperature will increase or decrease at any time, and sometimes two-fire forging is required, and Product quality is difficult to guarantee, and mass production is particularly difficult. It is a very headache for forging companies. It is time-consuming and laborious. Production efficiency is low, quality is unstable, and material utilization is low, but social demand is huge.

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