ICALEO 2007 Paper #610 (The Impact of Zinc-coating on Laser Hybrid Welding of Steel)
The Impact of Zinc-coating on Laser Hybrid Welding of Steel
Authors:
Alexander Kaplan, Luleå University of Technology; Luleå Sweden
Greger Wiklund, Luleå University of Technology; Luleå Sweden
Tony Nilsson, SSAB Tunnplåt; Bolänge Sweden
Presented at ICALEO 2007
Hybrid Nd:YAG/MAG welding of ultra high strength steel is studied for 1,5 mm thick sheets in I-, T- and overlap joint type configuration. Untreated and zinc-coated steels were compared, causing distinct differences in terms of process stability and welding result. For zinc coating it can be distinguished between domains of trapped zinc layers like in overlap and T-joints and free surface zinc coatings. Wh...$28.00
ICALEO 2007 Paper #609 (Laser Welding of a Lean Duplex Stainless Steel)
Laser Welding of a Lean Duplex Stainless Steel
Authors:
Elin Westin, Outokumpu Stainless; Avesta Sweden
Enda Keehan, Creganna medical devices; Galway Ireland
Mats Ström, Nordic Laser Production; Mölndal Sweden
Bernt von Brömssen, Nordic Laser Production; Mölndal Sweden
Presented at ICALEO 2007
Nd:YAG laser welding and laser gas tungsten arc (GTA) hybrid welding of the lean duplex stainless steel LDX 2101® (EN 1.4162, UNS S32101) were performed with and without filler wire and nitrogen additions to the shielding gas. The high energy density associated with laser welding of duplex stainless steels can affect the mechanical strength and corrosion resista...$28.00
ICALEO 2007 Paper #608 (Hybrid Laser Welding of Dual Phase Steel DP600: Microstructural and Mechanical Properties)
Hybrid Laser Welding of Dual Phase Steel DP600: Microstructural and Mechanical Properties
Authors:
Jo Verwimp, VITO; Mol Belgium
Eric Geerinckx, Vito; Mol Belgium
Jan Gedopt, VITO; Mol Belgium
Wim Van Haver, Belgian Welding Institute; Ghent Belgium
Alfred Dhooge, Belgian Welding Institute / Faculty of Engineering, Ghent University; Ghent Belgium
Debby Criel, Arcelor Research Industry Gent (Ocas); Zelzate Belgium
Presented at ICALEO 2007
The desire to combine the high productivity of laser welding with the robustness in terms of joint preparation of the GMAW process constitutes one of the main reasons for the increasing interest in...$28.00
ICALEO 2007 Paper #606 (Laser-Arc Hybrid Welding for the Cover Plate of ITER TF Coil)
Laser-Arc Hybrid Welding for the Cover Plate of ITER TF Coil
Authors:
Katsunori Shiihara, Toshiba Corporation; Yokohama Japan
Y. Makino, Toshiba Corporation; Yokohama Japan
T. Ogawa, Toshiba Corporation; Yokohama Japan
S. Asai, Toshiba Corporation; Yokohama Japan
T. Kanahara, Toshiba Corporation; Yokohama Japan
I. Senda, Toshiba Corporation; Yokohama Japan
K. Okuno, Japan Atomic Energy Agency; Ibaraki Japan
N. Koizumi, Japan Atomic Energy Agency; Ibaraki Japan
K. Matsui, Japan Atomic Energy Agency; Ibaraki Japan
Presented at ICALEO 2007
A laser-arc hybrid welding combining the laser beam and ...$28.00
ICALEO 2007 Paper #605 (Robot Application for Laser-GMA Hybrid Welding in Shipbuilding)
Robot Application for Laser-GMA Hybrid Welding in Shipbuilding
Authors:
Simon Olschok, ISF Welding and Joining Institute, RWTH Aachen University; Aachen Germany
Uwe Reisgen, ISF - Welding and Joining Institute, RWTH Aachen University; Aachen Germany
Ulrich Dilthey, ISF Welding and Joining Institute, RWTH Aachen University; Aachen Germany
Presented at ICALEO 2007
Laser hybrid welding stands for a process where laser beam and arc are acting in one common process zone. For five years now, this method has been successfully employed for V-type welds and fillet welds by the Meyerwerft -Shipyard. A new research project deals with the problems of vertical down welds a...$28.00
ICALEO 2007 Paper #604 (Progress in Laser-MAG Hybrid Welding of High-Strength Steels Up to 30 MM Thickness)
Progress in Laser-MAG Hybrid Welding of High-Strength Steels Up to 30 MM Thickness
Authors:
Dirk Petring, Fraunhofer ILT; Aachen Germany
Christian Fuhrmann, Copeland GmbH; Aachen Germany
Norbert Wolf, Fraunhofer ILT; Aachen Germany
Reinhart Poprawe, Fraunhofer ILT; Aachen Germany
Presented at ICALEO 2007
Within the European project HYBLAS, funded by the Research Fund for Coal and Steel (RFCS), significant progress has been achieved in laser-MAG hybrid welding of thick high-strength steel plates up to 30 mm. Results are presented in this paper. Fraunhofer ILT as leader of the HYBLAS work package Process development and production of welds, has perform...$28.00
ICALEO 2007 Paper #603 (Laser-Arc Welding of Duplex Stainless Steel)
Laser-Arc Welding of Duplex Stainless Steel
Authors:
Ambroise Vandewynckele, Aimen; Porrino Spain
Eva Vaamonde Couso, AIMEN; Porriño Spain
Gabriel Quintáns Rodríguez, FACTORIAS VULCANO; VIGO Spain
Jorge Luis Arias Otero, AIMEN; Porriño Spain
María Peréz de Lama, FACTORIAS VULCANO; VIGO Spain
Presented at ICALEO 2007
Duplex stainless steels are used in shipbuilding industry to build chemical and oil tanker vessels. The use of these steels is justified to ensure good corrosion behaviour during lifetime. The main limitation of traditional welding processes when welding duplex stainless steel is that the level of distortion reached is very h...$28.00
ICALEO 2007 Paper #602 (MIG-Laser Combined Welding of Aluminum Alloy to 304 Stainless Steel)
MIG-Laser Combined Welding of Aluminum Alloy to 304 Stainless Steel
Authors:
Giuseppe Casalino, DIMeG - Politecnico di Bari; Bari Italy
Carlo Rella, DIMeG Politecnico di Bari; Viale Japigia Italy
Presented at ICALEO 2007
In this paper a study on some aspects of the weldability of a Magnesium Aluminium alloy to an austenitic stainless steel through a MIG-Laser combined heat source is presented. In particular the effect on the interface between the two alloys due to the heat source position over the welding sheets was investigated. Using either a steel or an aluminium feed wire the combined heat source was positioned in the following working positions the ideal axis from the torch to...$28.00
ICALEO 2007 Paper #601 (On the Influence of Metal Cored Wire Composition on the Laser Hybrid Welding Process)
On the Influence of Metal Cored Wire Composition on the Laser Hybrid Welding Process
Authors:
Alexander Kaplan, Lulea University of Technology; Lulea Sweden
Jan Zachrisson, Esab Ab; Gothenburg Sweden
Pål (Paul) Dyberg, ESAB AB; Gothenburg Sweden
Presented at ICALEO 2007
Metal cored wires are often used in gas metal arc welding to increase productivity. Cored wires can, however, also easily be designed to affect weld metal composition or arc characteristics. Specially formulated metal cored wires, designed for laser hybrid welding, could therefore potentially be used to improve the arc and weld pool characteristics and enhance the process flexibility, robustness and pr...$28.00
ICALEO 2007 Paper #510 (Enhancing Dual Phase Steel Formability by Diode Laser Heat Treatment)
Enhancing Dual Phase Steel Formability by Diode Laser Heat Treatment
Authors:
Barbara Previtali, Politecnico Di Milano; Milano Italy
Edorado Capello, Politecnico di Milano; Milan Italy
Presented at ICALEO 2007
In the automotive world, increasing demands regarding weight, safety, and cost have led to the introduction of the so-called advanced high-strength steels (AHSS) . During forming processes, compared to conventional steels, AHSS steel usually has higher yield strengths and much higher ultimate tensile strengths, which require higher press loads and produce greater springback and die wear.
Heat treating just the areas which are mainly involved in high deformation, could be a ...$28.00
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