Method for processing rectangular-tooth spline sleeve using 42CrMoE high-quality alloy steel as material
A spline sleeve, rectangular tooth technology, applied in the field of heat treatment, can solve the problems of poor lubrication of the spline sleeve, weakened shaft and shaft strength, shortened service life, etc., to overcome the crack phenomenon, the shaft strength is weakened, and the service life is prolonged.
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Embodiment 1
[0018] A method for processing a rectangular tooth spline sleeve, the material used is 42CrMoE high-quality alloy steel, mainly including the percentage content of the following elements: Ti 0.35%, C 0.52%, Mn 1.23%, Si 3.24%, Ni0.01%, P <0.03, S<0.03, the processing technology adopted, the key technology is as follows:
[0019] Forging blank: use steam-air hammer and hydraulic press for free forging, keep the original height and diameter ratio of the blank less than 2 during the upsetting and elongating process, and avoid upsetting and bending; carry out normalizing treatment, heat to 850°C in a high-temperature furnace, and keep warm 4h; Carry out rough machining of the spline sleeve with a machining allowance of 2 mm; carry out quenching and tempering treatment, spray burning oxyacetylene onto the surface of the workpiece, spray water to cool immediately after reaching the hardening temperature, and temper the temperature at 500°C. Quenching and tempering hardness 28HRC; mi...
Embodiment 2
[0021] A method for processing a rectangular tooth spline sleeve, the material used is 42CrMoE high-quality alloy steel, mainly including the percentage content of the following elements: Ti 0.42%, C 0.87%, Mn 1.82%, Si 5.25%, Ni0.03%, P <0.03, S<0.03. The processing technology adopted, the key technology is as follows:
[0022] Forging blank: use steam-air hammer and hydraulic press for free forging, keep the original height and diameter ratio of the blank less than 2 during the upsetting and elongating process, and avoid upsetting and bending; carry out normalizing treatment, heat to 900°C in a high-temperature furnace, and keep warm 6h; Carry out rough machining of the spline sleeve with a machining allowance of 2 mm; perform quenching and tempering treatment, spray burning oxyacetylene onto the surface of the workpiece, spray water to cool it immediately after reaching the hardening temperature, and temper the temperature at 600°C. Quenching and tempering hardness 32HRC; ...
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