ICALEO 2009 Paper #P133 (Comparative Study on the Application of Fiber Laser and Slab CO2 Laser in Welding DP780 High Strength Steel Plate)
Comparative Study on the Application of Fiber Laser and Slab CO2 Laser in Welding DP780 High Strength Steel Plate
Authors:
Lijun Xin, College of Laser Engineering, Beijing Univ. of Technology; Beijing Peoples Republic of China
Tao Huang, Beijing University of Technology and Baoshan Iron & Steel CO., LTD; Beijing Peoples Republic of China
Jun Shao, Beijing Univ. of Technology and IPG (Beijing) Fiber Laser Technology CO., LTD; Beijing Peoples Republic of China
Zhiyong Wang, College of Laser Engineering, Beijing Univ. of Technology; Beijing Peoples Republic of China
Presented at ICALEO 2009
Welding experiments of high strength steel plate produced by Baosteel...$28.00
ICALEO 2009 Paper #P132 (Innovative Approach of Joining Hybrid Components)
Innovative Approach of Joining Hybrid Components
Authors:
Andreas Roesner, Fraunhofer ILT; Aachen Germany
Alexander Olowinsky, Fraunhofer Institute for Laser Technology; Aachen Germany
Arnold Gillner, Fraunhofer Institute for Laser Technology; Aachen Germany
Presented at ICALEO 2009
Joining of dissimilar materials is gaining importance especially in the automotive industry. The latest international initiatives concerning the average fleet CO2-emissions force the manufacturers to reduce the fuel consumption and the exhaust gas. This can mainly be achieved by the weight reduction of the vehicles. New methods for weight optimization are enabled by material selections adap...$28.00
ICALEO 2009 Paper #P130 (Influences of Gap Size on the Fatigue Strength of Welded Titanium Alloy Overlap Joints)
Influences of Gap Size on the Fatigue Strength of Welded Titanium Alloy Overlap Joints
Authors:
Bing Wu, BAMTRI; - Peoples Republic of China
Shuili Gong, BAMTRI; - Peoples Republic of China
Li Chen, BAMTRI; - Peoples Republic of China
Jianxun Zhang, Xi'an Jiaotong University; - Peoples Republic of China
Presented at ICALEO 2009
In this paper, the influences of the gap size on the fatigue strength of welded titanium alloy overlap-joints are studied. A finite element model (FEM) is established to evaluate the local stress concentration of overlap joint. By employing this FE model, the effects of the gap size on the local stress concentration of overlap joint...$28.00
ICALEO 2009 Paper #P128 (Fibre Laser Welding for Lightweight Design)
Fibre Laser Welding for Lightweight Design
Authors:
Jan Karlsson, Luleå University of Technology; - Sweden
Alexander Kaplan, Lulea University of Technology; Lulea Sweden
Presented at ICALEO 2009
Two different high strength steel grades have been welded by a fibre laser as a fillet corner joint. The purpose of the experiments is to use thinner materials of higher strength as a weight reduction strategy. The sensitivity of the welding process to the beam inclination angle, the beam positioning and the focal plane position were studied. High-speed imaging, process emission monitoring, measurement of the weld surface topography, mechanical testing and FE-analysis have been used to ana...$28.00
ICALEO 2009 Paper #P127 (Structure Modification of Carbon Nanotube Powder and Film by Laser Shock Peening Process)
Structure Modification of Carbon Nanotube Powder and Film by Laser Shock Peening Process
Authors:
Liang Lv, Tsinghua University, Dept of Mechanical Engineering; Beijing Peoples Republic of China
Minlin Zhong, Tsinghua University; Beijing Peoples Republic of China
Renjie Zhu, Key Laboratory for Advanced Materials Processing Technology Ministry of Education; Beijing Peoples Republic of China
Changsheng Dong, Key Laboratory for Advanced Materials Processing Technology Ministry of Education; Beijing Peoples Republic of China
Wenjin Liu, Key Laboratory for Advanced Materials Processing Technology Ministry of Education; Beijing Peoples Republic of China
Pres...$28.00
ICALEO 2009 Paper #P126 (The Influence of Laser Pulse Shape in Repair Welding of Tool Steels)
The Influence of Laser Pulse Shape in Repair Welding of Tool Steels
Authors:
Matej Pleterski, Faculty of Mechanical Engineering, University of Ljubljana; Ljubljana Slovinia
Janez Tusek, Faculty of Mechanical Engineering, University of Ljubljana; Ljubljana Slovinia
Damjan Klobcar, Faculty of Mechanical Engineering, University of Ljubljana; Ljubljana Slovinia
Ladislav Kosec, Faculty of Natural Sciences and Engineering, University of Ljubljana; Ljubljana Slovinia
Mitja Muhic, Tkc D. O. O.; Ljubljana Slovinia
Presented at ICALEO 2009
The majority of tool steels are commonly considered as non-weldable, because of their high carbon and high alloy el...$28.00
ICALEO 2009 Paper #P125 (Physical Study of Hybrid nd:YAG Laser -MAG Welding Process)
Physical Study of Hybrid nd:YAG Laser -MAG Welding Process
Authors:
Emilie Le Guen, Lalp (Cnrs); Paris France
Remy Fabbro, CNRS; Paris France
Frederic Coste, Lalp (Cnrs); Paris France
Muriel Carin, Limatb; Lorient France
Philippe Le Masson, Limatb; Lorient France
Presented at ICALEO 2009
Compared to laser or arc welding used separately, hybrid laser-MAG arc welding show decisive advantages when higher welding speeds, thicker materials, joint fit-up allowance, better molten pool stability, increase of metallurgical joint quality are required. The understanding of the main relevant involved physical processes are therefore very necessary if one ...$28.00
ICALEO 2009 Paper #P124 (Energy Efficiency of the Laser Based Manufacturing Processes)
Energy Efficiency of the Laser Based Manufacturing Processes
Authors:
Apostolos Fysikopoulos, Laboratory for Manufacturing Systems & Automation, University of Patras; Patras Greece
Konstantinos Salonitis, Laboratory for Manufacturing Systems & Automation, University of Patras; Patras Greece
George Chryssolouris, Laboratory for Manufacturing Systems & Automation, University of Patras; Patras Greece
John Pandremenos, SPEAKER NOT AUTHOR - University of Patras; Patras Greece
Presented at ICALEO 2009
This paper deals with the energy efficiency of various laser machining processes. Analytical models are developed and employed for assessing the energy requiremen...$28.00
ICALEO 2009 Paper #P123 (Acoustic and Optical Sensing for Monitoring of Blind Laser Drilling Geometrical Features)
Acoustic and Optical Sensing for Monitoring of Blind Laser Drilling Geometrical Features
Authors:
Aristidis Stournaras, Laboratory for Manufacturing Systems & Automation, University of Patras; Patras Greece
Konstantinos Salonitis, Laboratory for Manufacturing Systems & Automation, University of Patras; Patras Greece
George Chryssolouris, Laboratory for Manufacturing Systems & Automation, University of Patras; Patras Greece
John Pandremenos, SPEAKER NOT AUTHOR - University of Patras; Patras Greece
Presented at ICALEO 2009
The scope of this study is to investigate the utilization of optical and acoustic emissions, originating from processing zone, for real-t...$28.00
ICALEO 2009 Paper #P122 (CO2 Laser Welding Of AHSS)
CO2 Laser Welding Of AHSS
Authors:
John Pandremenos, Laboratory for Manufacturing Systems & Automation, University of Patras; Patras Greece
Konstantinos Salonitis, Laboratory for Manufacturing Systems & Automation, University of Patras; Patras Greece
George Chryssolouris, Laboratory for Manufacturing Systems & Automation, University of Patras; Patras Greece
Presented at ICALEO 2009
This paper deals with the laser welding of advanced high strength steels (AHSS) which have properties promising for automotive applications. Experimental investigation of the CO2 laser welding of similar and dissimilar grades of AHSS (such as DP-W600 and PM-800) and new sandwich material is...$28.00
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