In hot impression die forging, the principal modes of die failure are erosion, thermal fatigue, mechanical fatigue and permanent (plastic) deformation.
在热压模缎中，模具失效的主要模式是腐蚀作用、热疲劳、机械疲劳和永久性即塑性变形。
The four-axle 3D numerical controlled rolling-forging machining technology for die impression is studied and developed.
研究开发了辊锻模膛四轴三联动数控加工技术。
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