ICALEO 2008 Paper #702 (Influence of Material and Process Parameters on the Humping Effect)
Influence of Material and Process Parameters on the Humping Effect
Authors:
Steffen Neumann, BIAS Bremer Institut für angewandte Strahltechnik GmbH; Bremen Germany
Thomas Seefeld, Bias Bremer Institut F Angewandte Strahltechnik Gmbh; Bremen Germany
Matthias Schilf, Bias Bremer Institut F Angewandte Strahltechnik Gmbh; Bremen Germany
Presented at ICALEO 2008
In laser beam welding processes, a serious challenge is to overcome limitations in processing speed set by the humping effect. This effect, which starts if a certain welding speed is exceeded for a given configuration of material and processing parameters, is characterized by melt pool instabilities leading t...$28.00
ICALEO 2008 Paper #701 (Laser Processing for Alternatives Energy Devices: Advanced Battery and Fuel Cell Applications)
Laser Processing for Alternatives Energy Devices: Advanced Battery and Fuel Cell Applications
Authors:
Hans Herfurth, Fraunhofer Center for Laser Technology (Clt); Plymouth MI USA
Rahul Patwa, Fraunhofer Center for Laser Technology (Clt); Plymouth MI USA
Henrikki Pantsar, Fraunhofer Center for Laser Technology (Clt); Plymouth MI USA
Golam Newaz, Wayne State University, College of Engineering; Detroit MI USA
Stefan Heinemann, Fraunhofer Center for Laser Technology (Clt); Plymouth MI USA
Presented at ICALEO 2008
Hybrid Electric Vehicles (HEVs) are a fast expanding global market, driven by consumer concerns about steadily rising gasoline prices,...$28.00
ICALEO 2008 Paper #609 (Lbw of High Stiffness Light Weight Structures Generated by Scanned Fiber Laser Beams)
Lbw of High Stiffness Light Weight Structures Generated by Scanned Fiber Laser Beams
Authors:
Renald Schedewy, Fraunhofer Institute Material and Beam Technology; Dresden Germany
Dirk Dittrich, Fraunhofer Institute Material and Beam Technology; Dresden Germany
Jens Standfu Fraunhofer Institute Material and Beam Technology; Dresden Germany
Berndt Brenner, Fraunhofer Institute Material and Beam Technology; Dresden Germany
Presented at ICALEO 2008
Stiff light weight structures can be generated by a spatial arrangement of thin metallic sheets stiffened by intersecting sheets. However welding of such slot-tab joints is more challenging than typical sheet meta...$28.00
ICALEO 2008 Paper #608 (Laser Welding of 18Ct Gold and Stainless Steel)
Laser Welding of 18Ct Gold and Stainless Steel
Authors:
Denis Favez, Ecole Polytechnique Federale De Lausanne (Epfl); Lausanne Switzerland
Jean-Daniel Wagniere, Ecole Polytechnique Federale De Lausanne (Epfl); Lausanne Switzerland
Michel Rappaz, Ecole Polytechnique Federale De Lausanne (Epfl); Lausanne Switzerland
Presented at ICALEO 2008
In jewelry manufacturing, joining dissimilar materials is usually achieved by soldering, but this technique has several disadvantages as compared for example with laser welding. However, laser welding of metals with significantly different physical properties such as gold and steel can result in the formation of new intermediate phase...$28.00
ICALEO 2008 Paper #607 (Analysis of Dissimilar Alloy Laser Weld Shear Test Data)
Analysis of Dissimilar Alloy Laser Weld Shear Test Data
Authors:
Gerald A. Knorovsky, Sandia National Laboratories; Albuquerque NM USA
Charles V. Robino, Sandia National Laboratories; Albuquerque NM USA
Brad L. Boyce, Sandia National Labs; Albuquerque NM USA
Presented at ICALEO 2008
Small laser welds of dissimilar alloys are often encountered in the hermetic packaging of high performance components in the medical, automotive, aerospace and defense industries. In many instances the mechanical properties of these dissimilar alloy welds are unknown, and hence analysis of mechanical behavior via finite element methods is effectively impossible. A number of years ago, our...$28.00
ICALEO 2008 Paper #606 (Evolution of LAMP Joining to Dissimiliar Metal Welding)
Evolution of LAMP Joining to Dissimiliar Metal Welding
Authors:
Yusuke Niwa, Osaka University, Joining and Welding Research Institute; Ibaraki, Osaka Japan
Shuji Kubota, Research Center, Toyobo Co., Ltd; Otsu, Shiga Japan
Yousuke Kawahito, Osaka University, Joining and Welding Research Institute; Ibaraki, Osaka Japan
Seiji Katayama, Osaka University, Joining and Welding Research Institute; Ibaraki, Osaka Japan
Presented at ICALEO 2008
In recent years, transport machines such as automobiles and aircrafts need to be lightened from the environmental viewpoint, because the weight saving connects to saving energy and emission of greenhouse effect gas or air pol...$28.00
ICALEO 2008 Paper #605 (Infrared Observations of a Laser Transmission Welding Process)
Infrared Observations of a Laser Transmission Welding Process
Authors:
Layla S. Mayboudi, QueenS University; Kingston ON Canada
A. Michael Birk, QueenS University; Kingston ON Canada
Gene Zak, QueenS University; Kingston ON Canada
Philip J. Bates, Royal Military College of Canada; Kingston ON Canada
Presented at ICALEO 2008
Laser transmission welding (LTW), a technique to join thermoplastic components, involves a laser beam passing through a laser-transmitting part and then being absorbed by the laser-absorbing part at the weld interface. To form a strong bond, it is important that the weld interface be exposed to sufficient heat to melt the poly...$28.00
ICALEO 2008 Paper #604 (A Finite Volume Model for Laser-Soot Interaction for a Laser Transmission Welding Process)
A Finite Volume Model for Laser-Soot Interaction for a Laser Transmission Welding Process
Authors:
Layla S. Mayboudi, QueenS University; Kingston ON Canada
A. Michael Birk, QueenS University; Kingston ON Canada
Gene Zak, QueenS University; Kingston ON Canada
Philip J. Bates, Royal Military College of Canada; Kingston ON Canada
Presented at ICALEO 2008
Laser transmission welding (LTW), a technique to join thermoplastic components, involves a laser beam passing through a laser-transmitting part being absorbed by a laser-absorbing part at the weld interface. The heat generated at the interface melts a thin layer of the plastic in both parts and for...$28.00
ICALEO 2008 Paper #603 (Effects of the Diode Laser Irradiation on Polypropylene due toTransmission Welding)
Effects of the Diode Laser Irradiation on Polypropylene due toTransmission Welding
Authors:
Elhem Ghorbel, Universite De Cergy Pontoise; Cergy Pontoise France
Giuseppe Casalino, DIMeG - Politecnico di Bari; Bari Italy
Stephane Abed, Cooperation Laser Franco-Allemande; Arceuil Cedex France
Presented at ICALEO 2008
Diode laser welding is a non-contact process especially efficient for joining thermoplastic polymers. This technology has already industrial applications in series production in some sectors like automobile and packaging but a lack of knowledge concerning the influence of thermal history on the weld seam morphology of semicrystalline polymer has to recover sin...$28.00
ICALEO 2008 Paper #602 (The Effect of Clamping Force when using Ultrasonic Welding Ridge on Ultra High Speed Fiber Laser Welding of Polycarbonate)
The Effect of Clamping Force when using Ultrasonic Welding Ridge on Ultra High Speed Fiber Laser Welding of Polycarbonate
Authors:
Tuomas Purtonen, Lappeenranta University of Technology; Lappeenranta Finland
Antti Salminen, Lappeenranta University of Technology; Lappeenranta Finland
Petri Laakso, VTT Technical Research Centre of Finland; Lappeenranta Finland
Presented at ICALEO 2008
The electronic and automobile industries are having a growing interest in laser welding of polymers. Laser welding of polycarbonate has been widely researched in numerous different occasions. Novel ways for creating stronger and visually better welds are continuously studied. The need for s...$28.00
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