QT-600 nodular cast iron connection arm and steering wheel processing technology
A QT-600, nodular cast iron technology, applied in the field of heat treatment technology, can solve the problems of difficult processing, difficult machining, and low processing accuracy, and achieve the effect of reducing the tendency of gradual cracking, ensuring hardness and smoothness, and improving metallographic structure
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[0022] Embodiment: a kind of linkage arm of QT-600 nodular cast iron and steering wheel processing technology, concrete steps are as follows:
[0023] Step 1: Stress-relief annealing treatment of castings to eliminate internal stress of cast iron as much as possible;
[0024] Step 2: Carry out rough machining according to the cutting amount specified in the process;
[0025] Step 3: Carry out normalizing treatment on the rough-machined workpiece, and improve the matrix strength through normalizing treatment;
[0026] Step 4: Finishing the normalized workpiece according to the cutting amount specified in the process;
[0027] Step 5: Nitriding compound treatment on the overall surface of the workpiece after finishing;
[0028] Step 6: Carry out laser quenching treatment on the parts of the workpiece with rounded corners;
[0029] Step 7: Detect the deformation of the workpiece through the detection equipment;
[0030] Step 8: Perform 0.1mm finishing and polishing adjustment...
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