Experimental and Theoretical Analysis of Deep Penetration Welding Processes with Low-Power Laser-Assisted Plasma Arcs
Experimental and Theoretical Analysis of Deep Penetration Welding Processes with Low-Power Laser-Assisted Plasma Arcs
批准号:
263050501
负责人:
Professor Dr.-Ing. Eckhard Beyer
金额:
$0.0万
依托单位国家:
德国
项目类别:
Research Grants
财政年份:
2015
资助国家:
德国
项目状态:
已结题
起止时间:
2014-12-31 至 2018-12-31
中文摘要
本研究项目旨在进一步提高我们目前对激光辅助等离子弧焊工艺的认识,特别是考虑到实验验证的低激光束强度和低电弧电流下的深熔效应。首先,通过对不同类型的金属,如铁、铝、镁、钛或其合金进行珠对板焊接试验,确定加工条件。其次,旨在通过特定的实验和理论方法揭示负责过渡到深熔焊接状态的最相关的相互作用机制。首次验证了激光辅助等离子弧焊过程中能量传递效率和热-流-力相互作用可能发生的变化。这包括在深熔焊接条件下的光束吸收、电弧根形成和预热效应的研究。此外,还研究了电弧流与激光诱导蒸发过程相互作用所引起的环境压力分布和局部流场的变化对深穿透效果的影响。在激光辅助等离子弧焊试验中,将采用自主研发的激光束与等离子弧同轴排列方式,引导激光束穿过空心钨阴极。此外,还设计了不同的实验装置,以详细研究可能的相互作用现象。适应的数值模拟模式支持对不能通过实验方法直接观察到的效应进行评估。因此,将确定激光辅助等离子弧焊中最重要的相互作用机制。随着对工艺理解的提高,根据被焊材料的特殊性能,可以推导出激光辅助等离子弧焊的最佳参数设置指南。
英文摘要
This research project aims at the further improvement of our current knowledge about laser-assisted plasma arc welding processes with particular consideration of the experimentally verified deep penetration effect at low laser beam intensities and low arc currents. Firstly, the processing conditions are to be identified by means of bead-on-plate welding trials for different types of metals such as iron, aluminum, magnesium, titanium or their alloys. Secondly, it is intended to reveal the most relevant interaction mechanisms being responsible for the transfer into the deep penetration welding regime by particular experimental and theoretical approaches. For the first time, new research hypotheses, concerning possible changes of the energy transfer efficiency and of thermal and fluid-mechanical interactions during laser-assisted plasma arc welding, will be verified. This involves investigations of beam absorption, arc root formation and preheating effects under conditions of deep penetration welding. Furthermore, the impact of changes in ambient pressure distribution and local flow fields, induced by the arc flow in interaction with laser-induced evaporation processes, on the deep penetration effect are to be characterized. A self-developed coaxial arrangement of the laser beam and the plasma arc, which directs the laser beam through a thin hollow tungsten cathode, will be applied for the laser-assisted plasma arc welding trials. In addition, different experimental setups are designed for detailed investigations of possible interaction phenomena. Adapted numerical simulation models support the evaluation of effects that cannot be directly observed by experimental methods. As a result, the most important interaction mechanisms in laser-assisted plasma arc welding will be identified. With the improved process understanding, guidelines for optimal parameter settings for laser-assisted plasma arc welding can be derived, depending on the particular properties of the material being welded.
期刊论文(3)
专著(0)
科研奖励(0)
会议论文
Method for high accuracy measurements of energy coupling and melting efficiency under welding conditions
焊接条件下能量耦合和熔化效率高精度测量方法
DOI:
10.2351/1.5040615
发表时间:
2018
期刊:
Journal of Laser Applications
影响因子:
2.1
作者:
[D. Hipp, A. Mahrle, S. Jäckel, E. Beyer, C. Leyens, U. Füssel]
通讯作者:
U. Füssel
Numerical investigations on the thermal efficiency in laser-assisted plasma arc welding
激光辅助等离子弧焊热效率的数值研究
DOI:
10.1007/s40194-018-0641-3
发表时间:
2018
期刊:
Welding in the World
影响因子:
2.1
作者:
[S. Jäckel, M. Trautmann, M. Hertel, U. Füssel, D. Hipp, A. Mahrle, E. Beyer]
通讯作者:
E. Beyer
DOI:
10.3390/ma12091460
发表时间:
2019-05-01
期刊:
MATERIALS
影响因子:
3.4
作者:
[Hipp, Dominik, Mahrle, Achim, Fuessel, Uwe]
通讯作者:
Fuessel, Uwe
Reduction of hot cracking by magnetofluiddynamic modification of the laser-induced melt pool convection during powder-based generative laser cladding
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批准号:396298896
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项目类别:Research Grants
-
资助金额:$0.0万
-
财政年份:2018
-
负责人:Professor Dr.-Ing. Eckhard Beyer
-
依托单位:
Evaluation of dynamic beam shaping approaches for the optimization of laser beam cutting of thick-section stainless steel sheets with high-brilliant laser sources
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批准号:298949414
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项目类别:Research Grants
-
资助金额:$0.0万
-
财政年份:2016
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负责人:Professor Dr.-Ing. Eckhard Beyer
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依托单位:
Structure, oxidation resistance and erosion of dc-arc deposited Cr2AlC MAX phase coatings
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批准号:248110559
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项目类别:Research Grants
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资助金额:$0.0万
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财政年份:2013
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负责人:Professor Dr.-Ing. Eckhard Beyer
-
依托单位:
Micro-structuring and macro-structuring of deep drawing tools for dry forming condition
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批准号:244947573
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项目类别:Priority Programmes
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资助金额:$0.0万
-
财政年份:2013
-
负责人:Professor Dr.-Ing. Eckhard Beyer
-
依托单位:
High-performance synchronous reluctance motors by local manipulation of the magnetic properties of electrical steel laminations during the laser cutting process
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批准号:245194688
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项目类别:Research Grants
-
资助金额:$0.0万
-
财政年份:2013
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负责人:Professor Dr.-Ing. Eckhard Beyer
-
依托单位:
Magnetic pulse welding: Targeted manipulation of weld seam formation
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批准号:227652982
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项目类别:Priority Programmes
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资助金额:$0.0万
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财政年份:2012
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负责人:Professor Dr.-Ing. Eckhard Beyer
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依托单位:
Experimentelle und theoretische Untersuchungen zur Steigerung der Prozesseffizienz und Schnittkantenqualität beim Inertgasschneiden mit Faserlasern
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批准号:194800593
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项目类别:Research Grants
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资助金额:$0.0万
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财政年份:2011
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负责人:Professor Dr.-Ing. Eckhard Beyer
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依托单位:
Strukturbildende Prozesse in amorphen Kohlenstoffschichten
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批准号:165684430
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项目类别:Research Grants
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资助金额:$0.0万
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财政年份:2010
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负责人:Professor Dr.-Ing. Eckhard Beyer
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依托单位:
Experimentelle und theoretische Untersuchungen zur Verfahrensoptimierung beim Wolfram-Plasmaschweißen durch Laserstrahlung geringer Leistung
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批准号:60003819
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项目类别:Research Grants
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资助金额:$0.0万
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财政年份:2008
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负责人:Professor Dr.-Ing. Eckhard Beyer
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依托单位:
Beeinflussung der Prozesscharakteristik des Laserstrahlschweißens durch adaptives Strahlpendeln
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批准号:26927493
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项目类别:Priority Programmes
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资助金额:$0.0万
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财政年份:2006
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负责人:Professor Dr.-Ing. Eckhard Beyer
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依托单位:
Beeinflussung des Strömungsregimes in laserinduzierten Schmelzbändern durch Prozessgasgemische mit grenzflächenaktiven Komponenten
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批准号:26355070
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项目类别:Research Grants
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资助金额:$0.0万
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财政年份:2006
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负责人:Professor Dr.-Ing. Eckhard Beyer
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依托单位:
Erweiterung der Prozessgrenzen beim Laser-Pulver-Auftragsschweißen durch Verminderung von Spannungen und Verzug mittels prozessoptimierender Energiedeposition
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批准号:5431913
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项目类别:Priority Programmes
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资助金额:$0.0万
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财政年份:2004
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负责人:Professor Dr.-Ing. Eckhard Beyer
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依托单位:
Functionally graded thermal barrier coating for inner walls of cylindrical chambers for Cu-based alloys
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批准号:5312428
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项目类别:Priority Programmes
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资助金额:$0.0万
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财政年份:2001
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负责人:Professor Dr.-Ing. Eckhard Beyer
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依托单位:
Härtegradienten in Nanoschichtsystemen
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批准号:5181230
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项目类别:Priority Programmes
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资助金额:$0.0万
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财政年份:1998
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负责人:Professor Dr.-Ing. Eckhard Beyer
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依托单位:
海外基金