Study of the current path in gas metal arc welding for the generation of a dynamic phenomenological system model

研究熔化极气体保护焊中的电流路径,以生成动态唯象系统模型

基本信息

项目摘要

The regulation of the arc length in gas metal arc welding is an important part of control concepts in many welding power sources to adjust a stable welding process. Up to now, estimations and statistical values from the current-voltage characteristics are used as input for the arc length determination. Here, often for simplicity a one-dimensional arc model is assumed where mainly the arc column length can be vary whereas variations in the arc sheath regions, wire electrode and contact tube are neglected. However, in particular the arc sheath regions must be expected to contribute considerably to the power input and to cause additional voltage fluctuations. Therefore, the detailed experimental study of the current path from the contact tube over wire, droplet, arc including sheathes up to the work piece is aimed in the research project. The different parts of this path should be analysed separately by specific experimental techniques as well as by determining and using the different time scales of the underlying physical mechanisms. In particular, the study of the whole path by time series of electrical signals and measuring the complex impedance should be coupled with optical and spectroscopic investigations of the arc and probe measurements at the droplet depot. A description of the current path in form of a process model will be available as a result of the basic study which describes the dynamic and interdependent behaviour of the subsystems. Herewith the prerequisites for a considerable improvement of the arc length control in gas metal arc welding processes in contrast to existing solutions will be provided. In addition, the results can be used in following studies to improve the physical models of arc attachment and sheath regions at melted electrodes under the impact of metal evaporation.
在气体保护金属极电弧焊中,电弧长度的调节是许多焊接电源中调节稳定焊接过程的控制概念的重要部分。到目前为止,来自电流-电压特性的估计值和统计值被用作电弧长度确定的输入。这里,为了简单起见,通常假设一维电弧模型,其中主要是弧柱长度可以变化,而忽略电弧护套区域、线电极和接触管中的变化。然而,特别地,必须预期电弧鞘区域对功率输入有相当大的贡献并且引起附加的电压波动。因此,本课题的研究目标是对从导电管经过焊丝、熔滴、电弧(包括护套)到工件的电流路径进行详细的实验研究。这一路径的不同部分应通过具体的实验技术以及通过确定和使用基本物理机制的不同时间尺度分别进行分析。特别是,整个路径的电信号的时间序列和测量的复阻抗的研究,应结合光学和光谱的电弧和探针测量的研究在液滴库。作为描述子系统动态和相互依赖行为的基本研究的结果,将以过程模型的形式描述电流路径。因此,与现有解决方案相比,将提供气体保护金属极电弧焊工艺中电弧长度控制的显著改进的先决条件。此外,研究结果可用于后续研究,以改善在金属蒸发的影响下熔化电极的电弧附着和鞘区的物理模型。

项目成果

期刊论文数量(2)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Study of the arc voltage in gas metal arc welding
熔化极气体保护焊电弧电压的研究
  • DOI:
    10.1088/1361-6463/aaf588
  • 发表时间:
    2019
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Kozakov;Uhrlandt;Reisgen;Willms;Sharma;Lozano
  • 通讯作者:
    Lozano
Study of the wire resistance in gas metal arc welding
熔化极气体保护焊焊丝电阻的研究
  • DOI:
    10.1088/1361-6463/aaf5bb
  • 发表时间:
    2019
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Kozakov;Uhrlandt;Reisgen;Willms;Sharma;Lozano
  • 通讯作者:
    Lozano
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Professor Dr.-Ing. Uwe Reisgen其他文献

Professor Dr.-Ing. Uwe Reisgen的其他文献

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{{ truncateString('Professor Dr.-Ing. Uwe Reisgen', 18)}}的其他基金

Electro-mechanical molten pool control for adapting deviations in the process boundary conditions during automated gas shielded metal arc welding
机电熔池控制,用于适应自动气体保护金属电弧焊过程中工艺边界条件的偏差
  • 批准号:
    409759303
  • 财政年份:
    2019
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Investigation of the voids formation process in friction stir welding by numerical modeling and experiment on the basis of a stress-condition-hypothesis
基于应力条件假设的数值模拟和实验研究搅拌摩擦焊中的空隙形成过程
  • 批准号:
    386865820
  • 财政年份:
    2018
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Investigating of the influence of non-stationary processes in arc plasma on the depth penetration in high frequency TIG welding
研究电弧等离子体非平稳过程对高频 TIG 焊熔深的影响
  • 批准号:
    390246097
  • 财政年份:
    2018
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Process analysis of ultrasonic metal welding by acoustic emission
声发射超声波金属焊接工艺分析
  • 批准号:
    395129909
  • 财政年份:
    2018
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Influence of heat cycle and degree of dilution in electron beam welding on the properties and the long-time behaviour of aluminium copper dissimilar material joints in current-carrying parts
电子束焊接热循环和稀释程度对载流部件铝铜异种材料接头性能和长期行为的影响
  • 批准号:
    342185193
  • 财政年份:
    2017
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Development of a physical-mathematical model of the gas metal arc welding process for pulsed mode by using multicomponent filler materials and molecular gases
使用多组分填充材料和分子气体开发脉冲模式熔化极气体保护焊工艺的物理数学模型
  • 批准号:
    261101799
  • 财政年份:
    2015
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Load-appropriate arc brazed joint of high-strength sheet steels under metallurgical and geometrical aspects (joint proposal)
冶金和几何方面的高强度钢板的负载适当电弧钎焊接头(接头提案)
  • 批准号:
    233150244
  • 财政年份:
    2013
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Selbstkonsistentes Modell für das Laser-WIG/Plasma-Hybridschweißen im Wärmeleitungmodus
热传导模式激光TIG/等离子复合焊接的自洽模型
  • 批准号:
    203825349
  • 财政年份:
    2012
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Untersuchung von Gasen und Gasadditiven auf ihre Eignung als Flussmittel beim Lichtbogenlöten
研究气体和气体添加剂作为电弧焊助焊剂的适用性
  • 批准号:
    218274193
  • 财政年份:
    2012
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Modellbildung und Simulation der Phasen- und Strukturumwandlungen beim Elektronenstrahlschweißen von Stahl/Aluminium- und Stahl/Kupfermischverbindungen
钢/铝和钢/铜混合化合物电子束焊接过程中相和结构转变的建模和模拟
  • 批准号:
    192100460
  • 财政年份:
    2011
  • 资助金额:
    --
  • 项目类别:
    Research Grants

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循环二氧化碳水平升高导致延迟钠电流增加的致心律失常作用及其发生机制的研究
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