Medium manganese steel part treatment method based on combination of plastic forming and heat treatment
A technology of plastic forming and processing methods, applied in forming tools, manufacturing tools, metal processing equipment, etc., can solve the problems of mechanical properties of parts not meeting requirements, poor quality and precision of formed parts, large equipment tonnage, etc., and achieve low forming resistance. , The effect of high quality and dimensional accuracy of parts and small tonnage
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Embodiment 1
[0018] A method for processing medium manganese steel parts based on the combination of plastic forming and heat treatment, such as figure 1 shown, including the following steps:
[0019] (1) Heating the medium manganese steel parts to 850℃ for 10min to make the structure completely austenitized;
[0020] (2) The medium manganese steel parts obtained after the austenitization in step (1) are subjected to hot stamping at a temperature of 230° C. between the martensite transformation start temperature Ms point and the martensite transformation end temperature Mf point, and Holding pressure for 10s, holding pressure is 3000KG, during this period, the interrupted quenching process is completed;
[0021] (3) Transfer the medium manganese steel parts obtained after interrupting the quenching in step (2) to a heating furnace, carry out carbon partitioning at a temperature of 300°C (40°C higher than the martensite transformation start temperature Ms point) for 30s, and then cool to r...
Embodiment 2
[0024] A method for processing medium manganese steel parts based on the combination of plastic forming and heat treatment, such as figure 1 shown, including the following steps:
[0025] (1) Heating the medium manganese steel parts to 840℃ for 10min to make the structure completely austenitized;
[0026] (2) The medium manganese steel parts obtained after the austenitization in step (1) are subjected to hot stamping at a temperature of 260°C between the martensite transformation start temperature Ms point and the martensite transformation end temperature Mf point, and Holding pressure for 10s, holding pressure is 3000KG, during this period, the interrupted quenching process is completed;
[0027] (3) Transfer the medium manganese steel parts obtained after interrupting the quenching in step (2) to a heating furnace, carry out carbon partitioning at a temperature of 290°C (30°C higher than the martensite transformation start temperature Ms point) for 60s, and then cool to roo...
Embodiment 3
[0030] A method for processing medium manganese steel parts based on the combination of plastic forming and heat treatment, such as figure 1 shown, including the following steps:
[0031] (1) Heating the medium manganese steel parts to 860 °C for 5 minutes to make the structure completely austenitized;
[0032] (2) The medium manganese steel parts obtained after the austenitization in step (1) are subjected to hot stamping at a temperature of 230° C. between the martensite transformation start temperature Ms point and the martensite transformation end temperature Mf point, and Holding pressure for 20s, holding pressure is 3000KG, during this period, the interrupted quenching process is completed;
[0033] (3) Transfer the medium manganese steel parts obtained after interrupting the quenching in step (2) to a heating furnace, carry out carbon partitioning at a temperature of 310°C (50°C higher than the martensite transformation start temperature Ms point) for 10s, and then coo...
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Abstract
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