A Cold Stamping Process for Automotive Shock Absorber Lugs
An automotive shock absorber and cold stamping technology, applied in vehicle parts, transportation and packaging, etc., can solve the problems that stamping cannot be completed in one step, affect the forming and accuracy of the lugs, reduce the service life of the mold, and reduce the directional anisotropy coefficient. , The effect of improving the resistance strength and preventing impact cracks
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Embodiment 1
[0019] A cold stamping process for a lug of an automobile shock absorber, comprising the following steps:
[0020] (1) Use a plasma cutter to cut the steel plate used for lug production into a size that exceeds 5% of the drawing, and polish the cutting periphery to obtain a smooth cutting edge, heat the cut piece to 600°C, and go through 2 low-temperature tempering The first treatment time is 6 seconds, the temperature of the cut piece is quickly reduced to 450°C, and after 40 minutes of heat preservation, it is cooled to 300°C by spraying water and cooled to room temperature after 15 seconds of stagnation. The yield strength of the cut piece obtained is uniform, without Anisotropy, high uniform elongation, low yield ratio, low work hardening;
[0021] (2) Soak the tempered cut pieces in the adsorption liquid for 2 hours. The adsorption liquid is composed of the following raw materials in parts by weight: 25 parts of oleic acid, 15 parts of glyceryl oleate, 17 parts of sodium...
Embodiment 2
[0029] A cold stamping process for a lug of an automobile shock absorber, comprising the following steps:
[0030] (1) Use a plasma cutter to cut the steel plate used for lug production into a size exceeding 7% of the drawing, and polish the cutting edge to obtain a smooth cutting edge, heat the cut piece to 650°C, and go through 2 low-temperature tempering Treatment, the first treatment time is 7 seconds, the cutting temperature is quickly reduced to 470 ° C, after 45 minutes of heat preservation, spray water to cool to 320 ° C, and cool to room temperature after 17 seconds of stagnation. Anisotropy, high uniform elongation, low yield ratio, low work hardening;
[0031] (2) Soak the tempered pieces in the adsorption solution for 2.5 hours. The adsorption solution is composed of the following raw materials in parts by weight: 27 parts of oleic acid, 16 parts of glyceryl oleate, 18 parts of sodium alkylbenzene sulfonate, 15 parts of polyacrylamide, 14 parts of nitrobenzene, 15...
Embodiment 3
[0039] A cold stamping process for a lug of an automobile shock absorber, comprising the following steps:
[0040] (1) Use a plasma cutter to cut the steel plate used for lug production into a size that exceeds 10% of the drawing, and polish the cutting edge to obtain a smooth trimming edge. Heating the cut piece to 700°C, and tempering at low temperature twice Treatment, the first treatment time is 8 seconds, the cutting temperature is quickly reduced to 500 ° C, after 50 minutes of heat preservation, spray water to cool to 350 ° C, and cool to room temperature after 20 seconds of stagnation, the yield strength of the obtained cuttings is uniform, without Anisotropy, high uniform elongation, low yield ratio, low work hardening;
[0041] (2) Soak the tempered cut pieces in the adsorption liquid for 3 hours. The adsorption liquid is composed of the following raw materials in parts by weight: 30 parts of oleic acid, 18 parts of glyceryl oleate, 19 parts of sodium alkylbenzene s...
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