ICALEO 2009 Paper #1102 (Assessment of Part Quality in Laser Assisted Milling of Silicon Nitride Ceramic)
Assessment of Part Quality in Laser Assisted Milling of Silicon Nitride Ceramic
Authors:
Budong Yang, Kansas State University; Manhattan KS USA
Jiangang Sun, Argonne National Laboratory; Argonne IL USA
Elizabeth Frink, Kansas State University; Manhattan KS USA
Shuting Lei, Kansas State University; Manhattan KS USA
Kevin Lease, Kansas State University; Manhattan KS USA
Presented at ICALEO 2009
Due to the high brittleness of ceramic materials, the performance of ceramic components is very sensitive to machining damage. As laser assisted machining (LAM) poises to become a potentially cost-effective machining process for structural ceramics such a...$28.00
ICALEO 2009 Paper #1101 (Fiber Laser Assisted Machining of Silicon Nitride)
Fiber Laser Assisted Machining of Silicon Nitride
Authors:
Federico Sciammarella, Northern Illinois University; DeKalb IL USA
Michael Matusky, Northern Illinois University; Dekalb IL USA
Presented at ICALEO 2009
Laser Assisted Machining (LAM) of ceramics is an important area of research concerning the improvement upon conventional diamond grinding machining processes. The problems associated with the machinability of these advanced ceramic materials, specifically silicon nitride (Si3N4), have already lead to previous research work done with LAM. Utilizing the advent of high power fiber diode lasers, current research can now be completed outside the realm of traditional lasers such...$28.00
ICALEO 2009 Paper #107 (On the Meaning of Zinc Coatings in Hybrid Welding of Aluminium to Steel)
On the Meaning of Zinc Coatings in Hybrid Welding of Aluminium to Steel
Authors:
Frank Vollertsen, BIAS GmbH; Bremen Germany
Claus Thomy, BIAS GmbH; Bremen Germany
Presented at ICALEO 2009
Laser MIG hybrid welding was recently suggested as a feasible process for joining of aluminium to steel for both structural and tailored blank applications. In this process, the aluminium is molten to create a brazed bond to the zinc-coated steel sheet, which remains solid. To further investigate the effect of process parameters, laser power, MIG arc power, wire feed rate, welding speed and arc position relative to the abutting edges were varied for the case of butt joints of aluminium alloy AA 6...$28.00
ICALEO 2009 Paper #106 (High Brightness Hybrid Welding of Steel)
High Brightness Hybrid Welding of Steel
Authors:
Brian Victor, EWI; Columbus OH USA
Brad Nagy, EWI; Columbus OH USA
Stan Ream, EWI; Columbus OH USA
Dave Farson, Ohio State University; Columbus OH USA
Presented at ICALEO 2009
With the increasing power and performance of high-brightness solid-state lasers, laser-GMAW hybrid welding is becoming more practical for thick-section welding applications. This study evaluated hybrid welding of steel butt joints with a 10kW fiber laser. Welding trials were conducted to evaluate the effect that beam-to-wire distance and process orientation (arc-leading vs. laser-leading) had on the hybrid process. Both full and par...$28.00
ICALEO 2009 Paper #105 (Monitoring of Hybrid Laser-Arc Welding of Galvanized Steels in a Gap-Free Lap Joint Configuration)
Monitoring of Hybrid Laser-Arc Welding of Galvanized Steels in a Gap-Free Lap Joint Configuration
Authors:
Shanglu Yang, Southern Methodist University; Dallas TX USA
Rouzbeh Sarrafi, -; -
Radovan Kovacevic, -; -
Presented at ICALEO 2009
Hybrid laser-arc Welding of galvanized steels in a gap-free lap joint configuration is a complicated welding process, which is involved in many welding parameters such as laser power, welding speed as well as the distance between laser beam and GTAW torch. Furthermore, the dynamic behaviors of the molten pool, which reflect the stability of the welding process, is significantly affected by the dynamic behaviors of highly-pressurized z...$28.00
ICALEO 2009 Paper #104 (Criterion for Online Evaluation of Penetration Status in Laser-MIG Hybrid Welding and Its Application)
Criterion for Online Evaluation of Penetration Status in Laser-MIG Hybrid Welding and Its Application
Authors:
Yongqiang Zhang, Shougang Research Institute of Technology; Beijing Peoples Republic of China
Wuzhu Chen, Department of Mechanical Engineering,Tsinghua University; Beijing Peoples Republic of China
Yuanqing Shuang, Department of Mechanical Engineering,Tsinghua University; Beijing Peoples Republic of China
Jun Zhang, Shougang Research Institute of Technology; Beijing Peoples Republic of China
Presented at ICALEO 2009
The root penetration status in hybrid butt welding is the most important criterion for evaluating the weld joint quality. The weld ro...$28.00
ICALEO 2009 Paper #103 (Comparative Analysis of GMA, Laser and Laser-GMA Hybrid Welding)
Comparative Analysis of GMA, Laser and Laser-GMA Hybrid Welding
Authors:
Jukka Siltanen, Rautaruukki Oyj; Hämeenlinna Finland
Markus Suomi, Helsinki University of Technology; Helsinki Finland
Presented at ICALEO 2009
Laser welding and laser-MAG hybrid welding are used more often in heavy industry. It is very typical that a product earlier welded by arc welding needs changes to its design when laser or laser-MAG hybrid welding processes are considered. This presentation is based on a Masters thesis, the aim of which was to give guidelines for structural designers. The material used in the welding tests was S355K2 (according to EN 10025-2:2004). Joint geometries were butt and T-j...$28.00
ICALEO 2009 Paper #102 (Diffusible Hydrogen Characteristics of Hybrid Laser Arc Welding (HLAW))
Diffusible Hydrogen Characteristics of Hybrid Laser Arc Welding (HLAW)
Authors:
Paul A. Blomquist, Applied Thermal Sciences, Inc.; Sanford ME USA
Stanley E. Ferree, ESAB Welding and Cutting Products; - USA
Brian M. Marx, Concurrent Technologies Corp; - USA
Presented at ICALEO 2009
With the increased interest in Hybrid Laser Arc Welding (HLAW) in the U.S., the process is being certified for use on increasingly higher strength steels. The addition of the laser to the traditional Gas Metal Arc Welding (GMAW) process results in a higher total melt volume than that of the GMAW process alone. Studies of hydrogen content of HLAW welds were carried out in which comparisons w...$28.00
ICALEO 2009 Paper #101 (The Effects of Surface Topography and Lack of Fusion on the Fatigue Strength of Laser Hybrid Welds)
The Effects of Surface Topography and Lack of Fusion on the Fatigue Strength of Laser Hybrid Welds
Authors:
Md. Minhaj Alam, Lulea University of Technology; Lule� Sweden
Zuheir Barsoum, Royal Institute of Technology (KTH); Stockholm Sweden
Per Jonsen, Lulea University of Technology; Lulea Sweden
Hans Ake Haggblad, Lulea University of Technology; Lulea Sweden
Alexander Kaplan, Lulea University of Technology; Lulea Sweden
Presented at ICALEO 2009
The geometrical aspects of laser hybrid welding before, during and after the process differ from autonomous laser welding and from arc welding. When studying the fatigue behaviour of laser hybrid weld...$28.00
ICALEO 2009 Paper #1006 (Phase Evolution in Laser Solid Formed Compositionally Graded Ti60-Ti2AlNb Alloys)
Phase Evolution in Laser Solid Formed Compositionally Graded Ti60-Ti2AlNb Alloys
Authors:
Xin Lin, Northwestern Polytechnical University; Xi'an Peoples Republic of China
Mocong Yang, State Key Laboratory of Solidification Processing, Northwestern Polytechnical University; Xi\'An Peoples Republic of China
Xiaojing Xu, State Key Laboratory of Solidification Processing, Northwestern Polytechnical University; Xi\'An Peoples Republic of China
Haiou Yang, -; -
Jing Chen, State Key Laboratory of Solidification Processing, Northwestern Polytechnical University; Xi\'An Peoples Republic of China
Weidong Huang, State Key Laboratory of Solidification Process...$28.00
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