Forging method of automotive stabilizer bar
A technology for stabilizer bars and automobiles, which is applied in the forging field of stabilizer bars for automobiles, can solve the problems of potential safety hazards, poor corrosion resistance, short service life, etc., and achieve the effects of reducing energy consumption, scientific and rational overall structure, and reduced power consumption.
Inactive Publication Date: 2013-03-27
CHANGLI FORGING
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AI Technical Summary
Problems solved by technology
General manufacturers in the industry just spray the anti-rust paint directly or without shot blasting during surface treatment, and then paint the black paint after the anti-rust paint is dry. This kind of coating has poor corrosion resistance, short service life, and potential safety hazards.
Method used
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Experimental program
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Embodiment Construction
[0027] A method for forging a stabilizer bar for an automobile, comprising the following steps:
[0028] a. Pouring steel ingot
[0029] The weight percentage of the chemical composition in the steel ingot is: 0.086%≤C≤0.150%, 1.60%≤Si≤1.90%, 1.10%≤Mn≤1.35%, trace ≤P≤0.030%, trace ≤S≤0.030%. 12.50% ≤ Cr ≤ 14.50%, trace ≤ B ≤ 0.0018%, the balance is iron and unavoidable impurities; the temperature of the cast ingot is reduced to 350°C, then heated to 670-760°C, and kept for 3-5 hours, Cool the furnace to 300°C, hold for 3 hours, then heat to 650-760°C, hold for 10 hours, cool to 400°C at 45°C / hour, then cool to 150°C at 25°C / hour;
[0030] b. Forging steps
[0031] 1) Select steel ingots poured by forging process;
[0032] 2) Sawing the raw steel selected according to the type of the stabilizer bar, the size of the cutting blank is consistent with the forging process regulations, the inclination of the saw edge is not more than 2°, and the burr is not more than 2mm;
[0033...
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Abstract
The invention discloses a forging method of an automotive stabilizer bar, which comprises the steps of: a, pouring steel ingots which contain the chemical components of, by weight percent: 0.086% to 0.150% of C, 1.60% to 1.90% of Si, 1.10% to 1.35% of Mn, trace amount to 0.030% of P, trace amount to 0.030% of S, 12.50% to 14.50% of Cr, trace amount to 0.0018% of B and the balance: Fe and inevitable impurities, cooling the poured steel ingots to 350 DEG C, then heating to 670-760 DEG C, thermally insulating for 3-5hours, furnace cooling to 300 DEG C, thermally insulating for 3 hours, heating again to 650-760 DEG C, thermally insulating for 10hours, cooling to 400 DEG C at cooling speed of 45 DEG C / hour and then cooling to 150 DEG C at cooling speed of 25 DEG C / hour; and b, forging: 1) selecting the well poured steel ingots for the forging process. The forging method is good for large scale industrial production of the automotive stabilizer bars and reduces the problems of slag inclusion and short shot in the forging process. The mechanical property of the automotive stabilizer bar is further improved, material consumption of the stabilizer bar is reduced and the service life of a die for forging the stabilizer bar is prolonged.
Description
technical field [0001] The invention relates to a forging method of a stabilizer bar for automobiles. Background technique [0002] As an important part of automobile suspension components, the stabilizer bar can improve the roll angle stiffness of the suspension and adjust the ratio of the front and rear suspension angle stiffness to ensure that the car has good driving stability, thereby ensuring the safety, comfort and ride comfort of the car . General manufacturers in the industry just spray the anti-rust paint directly or without shot blasting during the surface treatment, and then paint the black paint after the anti-paint is dry. This kind of coating has poor corrosion resistance, short service life and potential safety hazards. Contents of the invention [0003] The purpose of the present invention is to provide a method for forging a stabilizer bar for automobiles, which is beneficial to large-scale industrial production, and reduces the phenomenon of contami...
Claims
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IPC IPC(8): B23P15/00B21J5/06
Inventor 杨奎琦陈正义张斌
Owner CHANGLI FORGING