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针对锻造过程中钢锭内部裂纹缺陷的愈合情况进行研究,设计了裂纹愈合的实验室模拟实验与工业级模拟实验.通过在Gleeble热压缩试样中预制裂纹缺陷,研究了变形温度和变形量对内部裂纹愈合的影响,发现变形温度越高,变形量越大,内裂纹的愈合效果越好.为了验证Gleeble实验结果的准确性,保证其结果在实际锻造生产中的适用性,设计了锻件内部裂纹愈合的工业级模拟实验.结果表明在1200℃,变形量为40%时,可以有效焊合锻件内部裂纹.
In order to study the healing condition of internal crack defects in ingot during forging process, laboratory simulation experiment and industrial simulation experiment of crack healing were designed.Through the prefabricated crack defects in Gleeble samples, the effects of deformation temperature and deformation on internal It is found that the higher the deformation temperature and the larger the deformation, the better the healing effect of the internal crack.In order to verify the accuracy of the Gleeble test results and ensure the applicability of the results in actual forging production, the internal cracks in the forging Healing industrial simulation results show that at 1200 ℃, the deformation of 40%, can effectively weld the internal cracks forgings.