The fatiguebreakdown is the main form of die failure. To improve the use life of dies, an approach for increasing fatigue resistance of die material is reviewed.
疲劳破坏是模具失效的主要形式,为了提高模具的使用寿命,综述了提高模具材料疲劳抗力的多种途径。
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The shape is very complex, rigidity is poor. It exist serious stress concentrates, and it can cause fatiguebreakdown easily.