本文選題：脈沖旁路耦合電弧焊 + 峰值脈沖�。� 參考：《焊接學(xué)報(bào)》2017年06期

【摘要】：針對脈沖旁路耦合電弧焊(pulsed DE-GMAW)焊接過程中熔滴過渡和焊縫成形控制難題,基于高速攝像等在內(nèi)的硬件系統(tǒng)和x PC的快速原型軟件系統(tǒng)構(gòu)成的試驗(yàn)系統(tǒng),對不同的脈沖數(shù)量對熔滴過渡和焊縫成形的影響進(jìn)行了分析.結(jié)果表明,在主路電流不變的情況下,隨著雙脈沖旁路電流的峰值脈沖數(shù)增加,自由過渡的次數(shù)增加;隨著雙脈沖旁路電流的基值脈沖數(shù)增加,短路過渡的次數(shù)增加.但較多的短路過渡次數(shù)會(huì)導(dǎo)致焊接過程不穩(wěn)定,產(chǎn)生較大飛濺.在此基礎(chǔ)上,確立了雙脈沖旁路電流的雙脈沖峰值脈沖數(shù)與基值脈沖數(shù)匹配來控制熔滴過渡方式,因此獲得較好的焊縫成形.
[Abstract]:Aiming at the problems of droplet transfer and weld forming control in pulsed DE-GMAW (pulsed arc welding) welding process, the test system based on high-speed camera and the rapid prototyping software system of x PC is developed. The effects of different pulse numbers on droplet transfer and weld formation are analyzed. The results show that the number of free transitions increases with the increase of the peak pulse number of the double pulse bypass current and the number of short circuit transitions with the increase of the basic pulse number of the double pulse bypass current. However, more short-circuit transition times will lead to unstable welding process, resulting in large spatter. On this basis, the matching of double pulse peak pulse number with basic pulse number is established to control droplet transfer mode, so better weld formation is obtained.
【作者單位】： 蘭州理工大學(xué)省部共建有色金屬先進(jìn)加工與再利用國家重點(diǎn)實(shí)驗(yàn)室;
【基金】：國家自然科學(xué)基金資助項(xiàng)目(51205179) 蘭州理工大學(xué)紅柳青年資助項(xiàng)目(Q201202)
【分類號】：TG444.72

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 黃健康;石s，

本文編號：1936941