| 摘要 |
PROBLEM TO BE SOLVED: To provide an aluminum alloy member which, when quality characteristics required for a product are different per part, is partially modified in accordance with the parts to be required, and to provide a method for producing the same, particularly, when the quality characteristics to be required are mutually contrary per part, which is effective in making both the characteristics consistent. SOLUTION: In a precipitation hardening type aluminum alloy in which, by relatively controlling a rapidly cooled part and a gradually cooled part partially after the whole is heated to a solid solution temperature, a strength difference is formed between the rapidly cooled part and the gradually cooled part after the subsequent artificial aging treatment. COPYRIGHT: (C)2010,JPO&INPIT |
