基于Saber的CMT焊接电源仿真

TG444.7; 针对铝合金冷金属过渡焊接技术(cold metal transfer,CMT)分析了熔滴过渡过程,以Mast语言构建了相关模型,并测定瞬时送丝速度,给出了CMT过渡周期中送丝速度变化曲线,结合弧焊电源的电路结构,构建了基于Saber的CMT焊机主电路和控制电路仿真平台.通过该平台进行改变峰值持续时间的非一元化焊接仿真,并同实测的电流和电压信号进行对比,探讨了焊接电流、电弧电压、过渡频率、熔滴体积和送丝速度等参数误差.结果表明,仿真与实测值误差较小,均在 10%以下,证实了搭建CMT仿真平台的准确性,进而为理解CMT物理过程,优化工艺参数奠定了初步的基础....

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Bibliographic Details
Published in焊接学报 Vol. 45; no. 12; pp. 7 - 44
Main Authors 吕小青, 邹文洁, 徐连勇
Format Journal Article
LanguageChinese
Published 天津大学,材料科学与工程学院,天津,300350 01.12.2024
天津市现代连接技术重点实验室,天津,300350
Subjects
冷金属过渡
wire feed speed
droplet transfer model
熔滴过渡模型
Saber
送丝速度
cold metal transfer
Online AccessGet full text
ISSN0253-360X
DOI10.12073/j.hjxb.20231107004

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Abstract TG444.7; 针对铝合金冷金属过渡焊接技术(cold metal transfer,CMT)分析了熔滴过渡过程,以Mast语言构建了相关模型,并测定瞬时送丝速度,给出了CMT过渡周期中送丝速度变化曲线,结合弧焊电源的电路结构,构建了基于Saber的CMT焊机主电路和控制电路仿真平台.通过该平台进行改变峰值持续时间的非一元化焊接仿真,并同实测的电流和电压信号进行对比,探讨了焊接电流、电弧电压、过渡频率、熔滴体积和送丝速度等参数误差.结果表明,仿真与实测值误差较小,均在 10%以下,证实了搭建CMT仿真平台的准确性,进而为理解CMT物理过程,优化工艺参数奠定了初步的基础.
AbstractList TG444.7; 针对铝合金冷金属过渡焊接技术(cold metal transfer,CMT)分析了熔滴过渡过程,以Mast语言构建了相关模型,并测定瞬时送丝速度,给出了CMT过渡周期中送丝速度变化曲线,结合弧焊电源的电路结构,构建了基于Saber的CMT焊机主电路和控制电路仿真平台.通过该平台进行改变峰值持续时间的非一元化焊接仿真,并同实测的电流和电压信号进行对比,探讨了焊接电流、电弧电压、过渡频率、熔滴体积和送丝速度等参数误差.结果表明,仿真与实测值误差较小,均在 10%以下,证实了搭建CMT仿真平台的准确性,进而为理解CMT物理过程,优化工艺参数奠定了初步的基础.
Abstract_FL In order to explore the cold metal transfer mechanism of aluminum alloy,the droplet transition process was analyzed,and a droplet transfer model was constructed using Mast language.The instantaneous wire feed speed was measured,and the change curve of wire feed speed in CMT transition period was given.Combined with the circuit structure of the arc welding power supply,a simulation platform for the main circuit and control circuit of the CMT welding source was established using Saber software.Through this platform,the simulation of non-united welding with changing boost duration time was carried out.The simulation of electrical signal was compared with the measurement,and the parameter errors of current,voltage,transition frequency,droplet volume and wire feed speed were discussed.The results showed that the errors between the simulation and the measurement are also less than 10%,which confirmed the accuracy of the CMT simulation platform.It lays a preliminary foundation for understanding the physical process of CMT and optimizing the process parameters.
Author 邹文洁
徐连勇
吕小青
AuthorAffiliation 天津大学,材料科学与工程学院,天津,300350;天津市现代连接技术重点实验室,天津,300350
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ZOU Wenjie
XU Lianyong
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Keywords 冷金属过渡
wire feed speed
droplet transfer model
熔滴过渡模型
Saber
送丝速度
cold metal transfer
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天津市现代连接技术重点实验室,天津,300350
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Title 基于Saber的CMT焊接电源仿真
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