A non-tuned and tempered half shaft and its manufacturing method
A manufacturing method, non-quenching and tempering technology, applied in manufacturing tools, furnaces, heat treatment equipment, etc., can solve the problems of aggravating environmental pollution, large energy consumption, quenching deformation, etc., to reduce environmental pollution, simplify production processes, and avoid quenching deformation. Effect
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Embodiment 1
[0013] A method for manufacturing a non-quenched and tempered half shaft, comprising: blanking → induction heating → pre-forging → final forging → trimming → straightening → controlled cooling → induction normalizing → machining → surface induction hardening and tempering. The φ60 38MnVS bar is firstly heated to 1250°C by induction; the flange and spline parts of the workpiece are partially forged through the pre-forging and final forging processes, and the final forging temperature is 1100°C; after forging, edge trimming and Straightening, the temperature of the workpiece after trimming is about 1000°C, and the temperature of the workpiece after straightening is about 960°C. After straightening, enter the controlled cooling process, place the workpiece in the air, and cool it to room temperature at a cooling rate of about 1.8°C / s. 950°C induction normalizing is performed on the spline part of the workpiece, and the whole workpiece is treated by surface induction hardening aft...
Embodiment 2
[0015] A method for manufacturing a non-quenched and tempered half shaft, comprising: blanking → induction heating → pre-forging → final forging → trimming → straightening → controlled cooling → machining → surface induction hardening and tempering. The 38MnVS bar with φ25 is firstly heated to 950°C by induction; the flange and spline parts of the workpiece are partially forged through the pre-forging and final forging processes, the pre-forging temperature is 950°C, and the final forging temperature is 850°C; forging After trimming and straightening, the temperature of the workpiece after trimming is about 820°C, and the temperature of the workpiece after straightening is about 780°C. After straightening, enter the controlled cooling process, place the workpiece in the air, and cool it to room temperature at a cooling rate of about 1.8°C / s. Carry out 800°C induction normalization on the spline part of the workpiece, and use surface induction hardening to treat the whole workp...
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