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在35MN快锻机上,通过采用FM锻造工艺方法,成功生产出718H钢的800mm×1300mm大尺寸模块。结果表明,FM锻造法工艺合理可行;毛坯超声波探伤95%以上达到了GB/T4162-B级要求,很好地解决了大尺寸模具钢中心疏松问题。
In 35MN fast forging machine, through the use of FM forging process, the successful production of 718H steel 800mm × 1300mm large-size modules. The results show that the FM forging method is reasonable and feasible. Over 95% of the blank ultrasonic flaw detection meets the requirements of GB / T4162-B, which solves the problem of loose center of large-size die steel.