Experimental and Theoretical Analysis of Deep Penetration Welding Processes with Low-Power Laser-Assisted Plasma Arcs
低功率激光辅助等离子弧深熔焊接工艺的实验和理论分析
基本信息
- 批准号:263050501
- 负责人:
- 金额:--
- 依托单位:
- 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
- 起止时间:2014-12-31 至 2018-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
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.
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接工艺的认识,特别考虑到在低激光束强度和低电弧电流下实验验证的深熔深效应。首先,通过针对不同类型的金属(例如铁、铝、镁、钛或其合金)的板上焊道焊接试验来确定加工条件。其次,它的目的是揭示最相关的相互作用机制负责转移到深熔焊接制度的特定的实验和理论方法。第一次,新的研究假设,关于激光辅助等离子弧焊过程中的能量传递效率和热和流体-机械相互作用的可能变化,将得到验证。这涉及深熔透焊接条件下的光束吸收、弧根形成和预热效果的研究。此外,在环境压力分布和局部流场的变化的影响,引起的电弧流与激光诱导蒸发过程的相互作用,对深穿透效果的特点。自行研制的激光束和等离子弧同轴布置,引导激光束通过薄空心钨阴极,将应用于激光辅助等离子弧焊接试验。此外,不同的实验装置被设计用于详细调查可能的相互作用现象。经过调整的数值模拟模型支持对无法通过实验方法直接观察到的影响进行评估。因此,在激光辅助等离子弧焊接中最重要的相互作用机制将被确定。随着对工艺的进一步了解,可以根据被焊接材料的特定特性,得出激光辅助等离子弧焊接的最佳参数设置指南。
项目成果
期刊论文数量(3)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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:
- 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:
- 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
Thermal Efficiency Analysis for Laser-Assisted Plasma Arc Welding of AISI 304 Stainless Steel
- DOI:10.3390/ma12091460
- 发表时间:2019-05-01
- 期刊:
- 影响因子:3.4
- 作者:Hipp, Dominik;Mahrle, Achim;Fuessel, Uwe
- 通讯作者:Fuessel, Uwe
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Professor Dr.-Ing. Eckhard Beyer其他文献
Professor Dr.-Ing. Eckhard Beyer的其他文献
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{{ truncateString('Professor Dr.-Ing. Eckhard Beyer', 18)}}的其他基金
Reduction of hot cracking by magnetofluiddynamic modification of the laser-induced melt pool convection during powder-based generative laser cladding
通过磁流体动力学修改粉末基生成激光熔覆过程中激光诱导熔池对流来减少热裂纹
- 批准号:
396298896 - 财政年份:2018
- 资助金额:
-- - 项目类别:
Research Grants
Evaluation of dynamic beam shaping approaches for the optimization of laser beam cutting of thick-section stainless steel sheets with high-brilliant laser sources
用于优化高亮度激光源厚截面不锈钢激光束切割的动态光束整形方法的评估
- 批准号:
298949414 - 财政年份:2016
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Research Grants
Structure, oxidation resistance and erosion of dc-arc deposited Cr2AlC MAX phase coatings
直流电弧沉积 Cr2AlC MAX 相涂层的结构、抗氧化性和侵蚀性
- 批准号:
248110559 - 财政年份:2013
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Micro-structuring and macro-structuring of deep drawing tools for dry forming condition
干成形条件下拉深工具的微观结构和宏观结构
- 批准号:
244947573 - 财政年份:2013
- 资助金额:
-- - 项目类别:
Priority Programmes
High-performance synchronous reluctance motors by local manipulation of the magnetic properties of electrical steel laminations during the laser cutting process
通过在激光切割过程中局部控制电工钢叠片的磁性来实现高性能同步磁阻电机
- 批准号:
245194688 - 财政年份:2013
- 资助金额:
-- - 项目类别:
Research Grants
Magnetic pulse welding: Targeted manipulation of weld seam formation
磁脉冲焊接:有针对性地控制焊缝形成
- 批准号:
227652982 - 财政年份:2012
- 资助金额:
-- - 项目类别:
Priority Programmes
Experimentelle und theoretische Untersuchungen zur Steigerung der Prozesseffizienz und Schnittkantenqualität beim Inertgasschneiden mit Faserlasern
提高光纤激光器惰性气体切割工艺效率和切削刃质量的实验和理论研究
- 批准号:
194800593 - 财政年份:2011
- 资助金额:
-- - 项目类别:
Research Grants
Strukturbildende Prozesse in amorphen Kohlenstoffschichten
无定形碳层的结构形成过程
- 批准号:
165684430 - 财政年份:2010
- 资助金额:
-- - 项目类别:
Research Grants
Experimentelle und theoretische Untersuchungen zur Verfahrensoptimierung beim Wolfram-Plasmaschweißen durch Laserstrahlung geringer Leistung
低功率激光辐射钨等离子焊接工艺优化的实验和理论研究
- 批准号:
60003819 - 财政年份:2008
- 资助金额:
-- - 项目类别:
Research Grants
Beeinflussung der Prozesscharakteristik des Laserstrahlschweißens durch adaptives Strahlpendeln
通过自适应光束振荡影响激光束焊接的工艺特性
- 批准号:
26927493 - 财政年份:2006
- 资助金额:
-- - 项目类别:
Priority Programmes
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