Based on DEFORM software, the forging process and predict the forging defect locations were simulated that provided a theoretical basis for the actual forging production.
同时利用DEFORM软件对锻造过程进行模拟研究，预测出锻件上的缺陷位置，为实际锻造生产提供理论依据。
The forming defect of the bend forging and the influence of blank and die shape parameters are studied. All of these provide theoretical basis for practice.
分析了弯曲成形中出现的主要缺陷，提出了毛坯形状和尺寸、模具参数对成形质量的影响规律，为实际生产提供了理论依据。
The defects of forging technology of upper head of 1200mm urea synthesis tower were analysized, and it was thought that the inter defect was loosen.
分析了尿素塔上封头体锻造工艺存在的缺陷，认为疏松是造成缺陷的原因。
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