ICALEO 2007 Paper #408 (Microstructural Evolution in Laser Rapid Forming of a Graded Titanium-Nickel Alloy)
Microstructural Evolution in Laser Rapid Forming of a Graded Titanium-Nickel Alloy
Authors:
Haiou Yang, Northwestern Polytechnical University; xi'an Peoples Republic of China
Xin Lin, Northwestern Polytechnical University; Xi'an Peoples Republic of China
Jing Chen, Northwestern Polytechnical University; xi'an Peoples Republic of China
T.M. Yue, The Hong Kong Polytechnic University; Hong Kong Hong Kong
Weidong Huang, Northwestern Polytechnical University; Xi'an Peoples Republic of China
Presented at ICALEO 2007
The fabrication of near net shaping parts with functionally graded materials using laser rapid forming have been considered as a signif...$28.00
ICALEO 2007 Paper #410 (Control Method for 3D Laser Forming Based on Geometrical Data)
Control Method for 3D Laser Forming Based on Geometrical Data
Authors:
Emile Abed, The University of Liverpool; Liverpool Great Britain
Stuart Edwardson, The University of Liverpool; Liverpool Great Britain
Konrad Bartkowiak, Fraunhofer Usa; Plymouth MI USA
Geoff Dearden, The University of Liverpool; Liverpool Great Britain
Ken G Watkins, The University of Liverpool; Liverpool Great Britain
Presented at ICALEO 2007
2-Dimensional laser forming can currently control bend angle, with reasonably accurate results, in various materials including aerospace alloys. However, this is a different situation for 3-Dimensional laser forming. To advance this...$28.00
ICALEO 2007 Paper #501 (Diode Pump Requirements for High Power Fiber Lasers)
Diode Pump Requirements for High Power Fiber Lasers
Authors:
Bryce Samson, Nufern; East Granby CT USA
Gavin Frith, Nufern; East Granby CT USA
Presented at ICALEO 2007
The single most important factor in the recent power scaling of CW fiber lasers has been the continuing improvement in fiber coupled, high brightness pump diodes. As the available power/brightness per module has increased the cost associated with pumping a fiber laser has decreased and in turn the available CW power from a single fiber laser has increased from 100W to over a kWatt. In this talk we review some of the unique requirements associated with pumping high power fiber lasers in various architectures, the roa...$28.00
ICALEO 2007 Paper #502 (High Power Diode Lasers for Industrial Applications)
High Power Diode Lasers for Industrial Applications
Authors:
Wolfgang Horn, DILAS Diodenlaser GmbH; Mainz Germany
Presented at ICALEO 2007
New wavelengths, high brightness and increasing reliability are breaking new ground for diode lasers. The higher brightness allows direct fibre coupling of several 100 W in 200 μm and 400 μm fibres and therefore the pumping of fibre lasers. Such high power fibre coupled laser diodes combined with fast beam deflection units (Galvo Scanners) have been implemented in industrial processes and used for quasi-simultaneous welding of polymers, heat treatment in the sub millimetre range or selective soldering in solar cell production. Available as modules or as tu...$28.00
ICALEO 2007 Paper #504 (Diode Pump Engines for Open Architecture Solid State Lasers)
Diode Pump Engines for Open Architecture Solid State Lasers
Authors:
Chandler Kennedy, Northrop Grumman; USA
Jay Doster, Northrop Grumman Cutting Edge Optronics; Saint Charles MO USA
Presented at ICALEO 2007
The field of laser applications is so broad that a multitude of laser architectures is needed to satisfy it. This multitude of architectures, however, may be powered by comparatively few optical "engines" designed specifically to allow the laser designer the greatest freedom and flexibility in tailoring his design to reliably meet each application's unique set of specifications. We present here a family of such diode pumped laser amplifier modules and their principal charact...$28.00
ICALEO 2007 Paper #505 (Diode Laser Pump Sources for Advanced Solid-State Lasers)
Diode Laser Pump Sources for Advanced Solid-State Lasers
Authors:
Friedhelm Dorsch, Trumpf Photonics; Cranbury NJ USA
John Hostetler, Trumpf Photonics; Cranbury NJ USA
Ulrich Bonna, Trumpf Photonics; Cranbury NJ USA
Greg Charache, Trumpf Photonics; Cranbury NJ USA
Ching-Long Jiang, Trumpf Photonics; Cranbury NJ USA
Carl Miester, Trumpf Photonics; Cranbury NJ USA
Viorel Negoita, Trumpf Photonics; Cranbury NJ USA
Robert Roff, Trumpf Photonics; Cranbury NJ USA
Werner Uhlenberg, Trumpf Laser GmbH; Schramberg Germany
Nicholas Usechak, Trumpf Photonics; Cranbury NJ USA
Thilo Vethake, Trumpf...$28.00
ICALEO 2007 Paper #507 (Diode Laser Pumping of Thin Disk Lasers)
Diode Laser Pumping of Thin Disk Lasers
Authors:
Holger Schlueter, TRUMPF, Inc.; Farmington CT USA
Viorel Negoita, Trumpf Photonics; Cranbury NJ USA
John Hostetler, Trumpf Photonics; Cranbury NJ USA
David Havrilla, Trumpf Inc., Laser Technology Center; Plymouth Township MI USA
Juergen Stollhof, Trumpf Inc., Laser Technology Center; Plymouth Township MI USA
Alexander Killi, Trumpf Laser Gmbh + Co. Kg; Schramberg Germany
Christian Schmitz, Trumpf Laser Gmbh + Co. Kg; Schramberg Germany
Dirk Sutter, Trumpf Laser Gmbh + Co. Kg; Schramberg Germany
Jochen Kleinbauer, Trumpf Laser Gmbh + Co. Kg; Schramberg Germany$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
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 #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