| 基于数学建模的铝合金双脉冲MIG焊专家数据库设计 |
| |
| 引用本文： | 陈小峰,林放,魏仲华,薛家祥.基于数学建模的铝合金双脉冲MIG焊专家数据库设计[J].焊接学报,2011,32(5):37-40. |
| |
| 作者姓名： | 陈小峰 林放 魏仲华 薛家祥 |
| |
| 作者单位： | 华南理工大学机械与汽车工程学院,广州,510640 |
| |
| 基金项目： | 国家自然科学基金资助项目，广东省科技攻关项目，番禺区攻关项目，黄埔区攻关项目 |
| |
| 摘 要： | 研制基于DSP的数字化双脉冲MIG焊电源,建立并论证了双脉冲MIG焊波形的定频模型和变频模型.结果表明,从50～300A电流范围内实现了精确到1 A的双脉冲焊铝.专家数据库设计以调节强弱脉冲群中脉冲个数为主、脉冲基值为辅,一方面实现了焊接电流的连续性可调,另一方面达到了焊接过程中小电流细调、大电流粗调的"人性化"效果....
|
| 关 键 词： | 双脉冲参数建模 专家数据库 低频变频 |
| 收稿时间： | 2010/10/12 0:00:00 |
Double-pulsed MIG expert database based on mathematical modeling |
| |
| CHEN Xiaofeng,LIN Fang,WEI Zhonghua and XUE Jiaxiang.Double-pulsed MIG expert database based on mathematical modeling[J].Transactions of The China Welding Institution,2011,32(5):37-40. |
| |
| Authors: | CHEN Xiaofeng LIN Fang WEI Zhonghua and XUE Jiaxiang |
| |
| Affiliation: | School of Mechanical & Automotive Engineering, South China University of Technology, Guangzhou 510640, China,School of Mechanical & Automotive Engineering, South China University of Technology, Guangzhou 510640, China,School of Mechanical & Automotive Engineering, South China University of Technology, Guangzhou 510640, China and School of Mechanical & Automotive Engineering, South China University of Technology, Guangzhou 510640, China |
| |
| Abstract: | Double-pulsed gas metal arc welding machine was developed based on both static-frequency and dynamic-frequency models.The feasibility of the models was proved and an expert database was developed based on welding experiments.The results indicate that:the accuracy can be guaranteed to 1 A for the current range 50-300 A of double-pulsed welding of Al continuous adjustments can be achieved by adjusting dominant role of the number of pulses and the subsidiary role of the base-current value.Moreover,by using this method,the current can be adjusted slowly for low welding current,and rapidly for high welding current.The adjusting range of welding current can be kept constant and continuous for the dynamic-frequency mode.The fish scale pattern weld with proper density scaly can be obtained by adjusting the modulation frequency.The welding currents are kept stable and there is interruption arc and little spatter,the welding seams are beautiful. |
| |
| Keywords: | double-pulsed modeling expert database dynamic-frequency |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《焊接学报》浏览原始摘要信息 |
|
点击此处可从《焊接学报》下载全文 |
|
