一、锻模的损坏形式模锻的损坏可分为正常损坏和非正常损坏两种。正常损坏主要有磨损、机械疲劳裂纹、热疲劳裂纹及热变形四种形式。非正常磨坏有模体开裂等。1.磨损磨损的原因主要在锻造过程中,变形金属和锻模型槽相接触及相对运动产生的机械摩擦致使型槽磨损,机械摩擦磨损的锻模尺 First, the form of damage forging Die forging damage can be divided into two kinds of normal damage and abnormal damage. The main damage is normal wear and tear, mechanical fatigue cracks, thermal fatigue cracks and thermal deformation of four forms. Abnormal wear and tear, such as mold cracking. 1. Wear and tear of the wear and tear of the main reasons for the forging process, the deformation of metal and forging die groove contact and the relative movement of mechanical friction resulting groove wear, mechanical wear and tear of the die forging