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Automobile connecting rod production process

A technology of automobile connecting rod and production process, applied in the direction of forming tools, manufacturing tools, metal processing equipment, etc., can solve the problems that cast aluminum cannot meet the strength requirements, manual removal is time-consuming and labor-intensive, etc., to achieve ingenious perfection of process, cost control, cutting high precision effect

Pending Publication Date: 2022-04-29
江苏天南铝材锻造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the past, the connecting rods of automobiles were formed by casting. The casting of this connecting rod was used in automobiles. The material of cast iron was used before. Although the strength was satisfactory, it was too heavy. Now the automobiles are becoming popular in light weight, and aluminum is introduced on the market. products, but cast aluminum cannot meet the strength requirements, using forged aluminum can improve the strength of the product, how to effectively forge and process the blanks of automobile connecting rods is a technical problem to be solved at present
The automobile connecting rod blank forged by the forging die has redundant scrap edges during forging and extrusion; manual removal is time-consuming and laborious, how to quickly remove the scrap edges is a problem to be solved at present

Method used

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  • Automobile connecting rod production process

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Embodiment Construction

[0040] Refer to attached Figure 1-5 , a kind of automobile connecting rod production process, the steps are as follows:

[0041] Step 1, blanking, select the aluminum rod, the aluminum rod is ∅85 mm aluminum rod made of 6082 material, and the blanking length is 655±1 mm; or the ∅85 aluminum rod made of 6082 material is used, and the blanking length is 655±1 mm.

[0042] Step 2, turning, turning the ∅85×655±1 mm aluminum rod into a forged billet with the two heads of the aluminum rod being ∅80±0.2×117±1 mm and the middle aluminum rod being ∅48±0.2 mm; the aluminum rod The two heads are near the end of the middle aluminum rod for a transition fillet R20mm.

[0043] Step 3. Before hot forging, put the turned forging blank into the heating and holding furnace, raise the temperature to 480°C after 8 hours, and keep the heat for 4 hours to keep the aluminum rod at 470~480°C. The heating should be uniform, and there should be no underheating. and over-burning defects, blanks with ...

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Abstract

The invention relates to an automobile connecting rod production process which comprises the following steps: step 1, selecting an aluminum bar; step 2, turning the aluminum bar into a forging blank with two thick ends and a thin middle part; thirdly, the turned forging blank is put into a heating and heat preservation furnace, the temperature is increased to 480 DEG C after 8 hours, and heat preservation is conducted for 4 hours; fourthly, the hot forging die is installed on a press machine, the hot forging die is heated through a heating pipe, and the temperature is controlled to be 200 DEG C + / -5 DEG C; the aluminum bar is placed in a hot forging die to be forged and formed, and an automobile connecting rod blank is obtained; 5, the automobile connecting rod blank is fed into a trimming die for trimming, and 6, heat treatment is conducted, specifically, quenching is conducted firstly, and then annealing is conducted; and 7, finish machining the molded surface of the automobile connecting rod blank to form a finished product. And 8, inspecting, packaging and warehousing the finished product. The process has the advantages that the process is ingenious and perfect, aluminum materials are adopted to replace previous cast iron materials, the process is light, and meanwhile product quality is guaranteed through operation modes such as a hot forging die, a trimming die and heat treatment.

Description

technical field [0001] The invention relates to the field of automobile connecting rod production, in particular to an automobile connecting rod production process. Background technique [0002] In the past, the connecting rods of automobiles were formed by casting. The casting of this connecting rod was used in automobiles. The material of cast iron was used before. Although the strength was satisfactory, it was too heavy. Now the automobiles are becoming popular in light weight, and aluminum is introduced on the market. Products, but cast aluminum can not meet the strength requirements, using forged aluminum can improve the strength of the product, how to effectively forge and process the automotive connecting rod blank is a technical problem to be solved at present. The automobile connecting rod blank forged by the forging die has redundant scrap edges during forging and extrusion; manual removal is time-consuming and laborious, and how to quickly remove the scrap edges i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J5/02B21J13/02B21J5/00B21J1/00B21J1/06B21D28/14B21D37/14C21D1/18C21D1/26C21D9/00
CPCB21J5/025B21J13/02B21J5/002B21J1/003B21J1/06B21D28/14B21D37/14C21D1/18C21D1/26C21D9/0068
Inventor 姚栋宇徐炎炎费小玲
Owner 江苏天南铝材锻造有限公司
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