发明名称 |
Verfahren zur Herstellung von Sandwich-Strukturen aus Titan-Aluminium-Legierung. |
摘要 |
<p>A method for fabricating of intermetallic titanium aluminide sandwich structures in which blanks of titanium aluminide are bonded to one another, under vacuum in a retort, at selected areas to form a pack, and then, upon removal of the retort, expanded superplastically to form a desired sandwich structure. Bonding of the various preselected areas of the metal blanks is accomplished using elevated temperature gas diffusion bonding techniques. The invention contemplates a first thermal cycle during which the pack is diffusion bonded in an evacuated retort at one temperature within a predetermined range of temperatures, and a second thermal cycle during which subsequent superplastic forming of the pack of bonded blanks, with the retort removed, is carried out. Optionally, during the first thermal cycle, a step of superplastic preforming may be carried out whereby the pack is preformed against arcuate or other shaped forming members.</p> |
申请公布号 |
DE69201319(T2) |
申请公布日期 |
1995.09.21 |
申请号 |
DE1992601319T |
申请日期 |
1992.02.20 |
申请人 |
ROCKWELL INTERNATIONAL CORP., SEAL BEACH, CALIF., US |
发明人 |
STACHER, GEORGE W., WESTMINSTER, CALIFORNIA 92683, US |
分类号 |
B21D26/055;B21D47/00;B23K20/00;B23K20/18;(IPC1-7):B21D26/02 |
主分类号 |
B21D26/055 |
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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