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METHOD FOR INCREASING A FATIGUE STRENGTH OF A METALLIC COMPONENT, WHICH IS PROVIDED WITH AT LEAST ONE CAVITY, WHILE SUBJECTING IT TO A CYCLIC INNER PRESSURE LOAD
METHOD FOR INCREASING A FATIGUE STRENGTH OF A METALLIC COMPONENT, WHICH IS PROVIDED WITH AT LEAST ONE CAVITY, WHILE SUBJECTING IT TO A CYCLIC INNER PRESSURE LOAD
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机译:增加金属零件疲劳强度的方法,该零件至少要承受一个内腔,同时承受循环的内部压力载荷
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摘要
The invention relates to a method for increasing a fatigue strength of a metallic component (1), particularly a component (1) of a fuel injection system of a motor vehicle, said component being provided with at least one cavity (4). During a pressurization phase, the component (1), inside its cavity (4), is subjected to the action of pressure in such a manner that the component (1) undergoes a semiplastic deformation at least in sections in order to generate internal compressive forces inside the component (1). In addition, the component (1) is heated to a component temperature that is higher than room temperature during a temperature treatment phase.
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