发明名称 |
METAL JOINING AND STRENGTHENING METHODS UTILIZING MICROSTRUCTURAL ENHANCEMENT |
摘要 |
A method for joining first and second metal portions includes welding together the portions such that a weld nugget joins them, compressively stressing the weld nugget throughout its volume, and heat treating the compressively stressed weld nugget to recrystallize metal therein. A method for strengthening a metal element includes imparting compressive stress within a region of the metal element, and heat treating it such that metal of the region recrystallizes with a finer grain structure than was present in the region before the step of imparting the compressive stress. A repaired metal part includes a first, original section made of metal alloy, and a second, repair section of metal alloy joined to the original section by a recrystallized metal weld having crystals within +/- 3 ASTM-112 grain sizes of the size of the crystals of the original and repair sections. |
申请公布号 |
WO2012112779(A2) |
申请公布日期 |
2012.08.23 |
申请号 |
WO2012US25453 |
申请日期 |
2012.02.16 |
申请人 |
KEYSTONE SYNERGISTIC ENTERPRISES, INC.;WALKER, BRYANT;WALKER, RAYMOND |
发明人 |
WALKER, BRYANT;WALKER, RAYMOND |
分类号 |
B23K5/12;C21D1/18 |
主分类号 |
B23K5/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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