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CNC lathe processing heat treatment of three steps
Add Time：2025-03-28
When machining the workpiece in CNC lathe, there is generally a heat treatment process, which step is there for heat treatment of the workpiece when CNC lathe machining?
First. Prepare for heat treatment. The purpose of preheating treatment is to improve the cutting performance of the trend, eliminate the residual stress of the blank manufacturing era of CNC lathe processing, and improve the organization. Its process position is mostly before machining, often used for annealing, normalizing and so on.
Second. Heat treatment to eliminate residual stress. Because the internal stress generated by the blank in the manufacturing and machining process can cause the workpiece deformation and affect the processing quality, it is necessary to arrange residual heat treatment. Heat treatment of residual stress should be arranged after rough machining before finishing. For parts that do not require high accuracy, manual aging and annealing to remove residual stress are usually arranged before the blank enters the machining shop. For complex castings with high precision requirements, two aging treatments are usually arranged in the machining process: casting - roughing - aging - semi-finishing - aging - finishing. For high-precision parts, such as precision steel wire, precision spindle, etc. Multiple heat treatments to remove residual stress and even cold treatments should be arranged to stabilize the size.
Third. Final heat treatment. The purpose of final heat treatment is to improve the strength, surface hardness and wear resistance of the part, which is usually arranged before the finishing process (grinding processing). Commonly used are quenching, carburizing, nitriding, carbonitriding.
First. Prepare for heat treatment. The purpose of preheating treatment is to improve the cutting performance of the trend, eliminate the residual stress of the blank manufacturing era of CNC lathe processing, and improve the organization. Its process position is mostly before machining, often used for annealing, normalizing and so on.
Second. Heat treatment to eliminate residual stress. Because the internal stress generated by the blank in the manufacturing and machining process can cause the workpiece deformation and affect the processing quality, it is necessary to arrange residual heat treatment. Heat treatment of residual stress should be arranged after rough machining before finishing. For parts that do not require high accuracy, manual aging and annealing to remove residual stress are usually arranged before the blank enters the machining shop. For complex castings with high precision requirements, two aging treatments are usually arranged in the machining process: casting - roughing - aging - semi-finishing - aging - finishing. For high-precision parts, such as precision steel wire, precision spindle, etc. Multiple heat treatments to remove residual stress and even cold treatments should be arranged to stabilize the size.
Third. Final heat treatment. The purpose of final heat treatment is to improve the strength, surface hardness and wear resistance of the part, which is usually arranged before the finishing process (grinding processing). Commonly used are quenching, carburizing, nitriding, carbonitriding.