Method for stress relieving of metal |
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| 申请号 | JP21382490 | 申请日 | 1990-08-14 | 公开(公告)号 | JPH0387342A | 公开(公告)日 | 1991-04-12 |
| 申请人 | Bonal Technol Inc; | 发明人 | OOGASUTO JIYOOJI HEEBERU JIYUN; OOGASUTO JIYOOJI HEEBERU SAADO; | ||||
| 摘要 | PURPOSE: To provide a method for obtaining effective stress relieving by mechanically applying periodical vibration energy to an object, monitoring the attenuation effect thereof, identifying the peaks of plural higher harmonic vibrations and applying vibration energy to the object at the frequencies corresponding to the fractional harmonic frequencies of these peaks. CONSTITUTION: The stresses of a beam 10 which is the metal to be the object are relieved. The periodical vibration energy is first mechanically applied by a vibrator 16 on the object (beam) 10 in a test frequency range. The attenuation effect of the energy flowing into the object 10 is monitored as the function of the frequency. The absorption peaks of the plural higher harmonic vibrations consisting of the peaks of the resonance absorption of the respective plural vibrations are identified by an electron controller 18. The mechanical periodical vibration energy is applied by using the vibrator 16, an electronic controller 18 and a control means 22 on the object for the substantial time at the specified frequencies corresponding to the fractional harmonic frequencies of the absorption peaks of the harmonic vibrations. As a result, the method for stress relieving of a wide range of metallic alloys including both soft and hard alloys is provided. COPYRIGHT: (C)1991,JPO |
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