依据振动时效机理，应用模态分析技术，提出一种盘类铸件振动时效工艺参数优化设计的新方法。
The new method of the re-engineering VSR parameters of circle plate casting is figured out based on the modal Analysis technology.
通过实例分析，得出薄板焊接结构件自然时效周期远远小于实心件周期，并对其机理进行了分析。
Through the analysis of the example and mechanism, the natural ageing cycle of the structure welded by than plate is less than the one welded by solid metal.
根据振动时效工艺机理，针对工件特点，制定了具体操作程序，并从工艺效果评定工艺的可行性。
Based on the mechanism of vibrating aging process and features of work pieces, particular operating procedures are made and feasibility of the process is assessed from the result of the process.
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