coldworked hole 挤压孔
The experimental results show that the coldworked holes significantly extend the fatigue life of ultra-high strength steel.
试验结果表明，孔冷挤压显著提高两种超高强度钢的疲劳飞行寿命。
The residual stress around a coldworked hole is computed with elastoplastic finite element methods of both flow theory and deformation theory.
研究了基于形变理论的金属板料成形快速有限元分析的方法——反向方法 ，并实现了计算程序。
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