ICALEO 2010 Paper #P168 (Hybrid 4kW Fiber Laser-GMAW Welding of Half-Inch Mild Steels)

Hybrid 4kW Fiber Laser-GMAW Welding of Half-Inch Mild Steels
Authors:
Shanglu Yang, GM China Science Lab; Shanghai Peoples Republic of China
Rouzbeh Sarrafi, Research Center for Advanced Manufacturing; Dallas TX USA
Radovan Kovacevic, Research Center for Advanced Manufacturing; Dallas TX USA
Presented at ICALEO 2010

Thick plates with different gauges have increased their use in various industries such as the shipyard and offshore industries. The arc welding techniques are the common ways to join the thick plates, which usually requires multipass and interlayer control. In addition, high heat input during arc welding also leads to the large distortion in the weld. Indus...

ICALEO 2010 Paper #P169 (Characteristics of Lamp Joining Structures for Several Materials)

Characteristics of Lamp Joining Structures for Several Materials
Authors:
Seiji Katayama, Osaka University, Joining and Welding Research Institute; Ibaraki, Osaka
Yousuke Kawahito, Osaka University, Joining and Welding Research Institute; Ibaraki, Osaka Japan
Presented at ICALEO 2010

Joining of the dissimilar materials is necessary and important from a manufacturing viewpoint. Therefore, the authors have developed a new laser direct joining method between metals and plastics (Laser-Assisted Metal and Plastic joining method). Recently it has been reported that the LAMP joining between several metals and engineering plastics could produce sufficiently strong joints.
In this resea...

ICALEO 2010 Paper #P177 (Picosecond Laser Fabrication of Nitinol for Coronary Stent Application)

Picosecond Laser Fabrication of Nitinol for Coronary Stent Application
Authors:
N. Muhammad, Laser Processing Research Centre, School of Mechanical, Aerospace and Civil Engineering, The University of Manchester; - Great Britain
D. Whitehead, Laser Processing Research Centre, School of Mechanical, Aerospace and Civil Engineering, The University of Manchester; - Great Britain
F. Viejo, Corrosion and Protection Centre , School of Materials, The University of Manchester; - Great Britain
R. Abuaisha, Corrosion and Protection Centre , School of Materials, The University of Manchester; - Great Britain
A. Boor, Swisstec AG; Schaan Liechtenstein
W. Oppenlae...

ICALEO 2010 Paper #P181 (Application of Air Pomp in the Laser Drilling Due to Solve Mud Circulation Problem in Oil Wells Drilling Industry)

Application of Air Pomp in the Laser Drilling Due to Solve Mud Circulation Problem in Oil Wells Drilling Industry
Authors:
Mahdi Bakhtbidar, Islamic Azd University, Omidieh Branch, Young Research Center; -
Mohsen Ghorbankhani, Islamic Azad University, Omidieh Branch; Tekab
Siyamak Moradi, Islamic Azad University, Mahshahr Branch; Tehran
Presented at ICALEO 2010

Application

Although studying widespread about laser drilling in the world but, so far lasers doesn't have been operative in oil and gas wells drilling industry because there were several problems. Also, need for bring a new method for oil and gas wells drilling is necessary. Drilling with laser technology...

ICALEO 2010 Paper #P187 (Variation of Topography on the Ti-Based Bulk Metallic Glass After Femtosecond Laser Irradiation)

Variation of Topography on the Ti-Based Bulk Metallic Glass After Femtosecond Laser Irradiation
Authors:
Togo Shinonaga, Graduate School of Engineering, Osaka University; Suita, Osaka Japan
Masahiro Tsukamoto, Joining and Welding Research Institute, Osaka University; Ibaraki, Osaka Japan
Daisuke Tone, Graduate School of Engineering, Osaka University; Suita, Osaka Japan
Sayaka Maruyama, Graduate School of Science and Engineering, Tokyo Institute of Technology; Yokohama, Kanagawa Japan
Nobuhiro Matsushita, Materials and Structures Laboratory, Tokyo Institute of Technology; Yokohama, Kanagawa Japan
Takeshi Wada, Institute for Materials Research, Tohok...

ICALEO 2010 Paper #P189 (Laser Micro Processing using a High Repetition Rate Femto Second Laser)

Laser Micro Processing using a High Repetition Rate Femto Second Laser
Authors:
J. Schille, University of Applied Sciences Mittweida, Laser Application Centre, The University of Manchester, The Photon Sciences Institute & CEAS; Mittweida Germany
U. Loeschner, University of Applied Sciences Mittweida, Laser Application Centre; Mittweida Germany
R. Ebert, University of Applied Sciences Mittweida, Laser Application Centre; Mittweida Germany
P. Scully, The University of Manchester, The Photon Sciences Institute & CEAS; Manchester
N. Goddard, The University of Manchester, The Photon Sciences Institute & CEAS; Manchester
H. Exner, University of Applied...

ICALEO 2010 Paper #P191 (Thermal Lensing Compensation Objective for High Power Lasers)

Thermal Lensing Compensation Objective for High Power Lasers
Authors:
Michael Scaggs, Neoteric Concepts, LLC; Weston FL USA
Gil Haas, Haas Laser Technologis, Inc.; Flanders NJ USA
Presented at ICALEO 2010

Athermalization of focusing objectives is a common technique for optimizing imaging systems in the infrared where thermal effects are a major concern. The athermalization is generally done within the spectrum of interest and not generally applied to a single wavelength. By applying athermalization techniques to a laser system, a significant reduction in thermal lensing of the laser system can be realized. We describe a passive method minimizing thermal lensing of high power lasers.

ICALEO 2010 Paper #P193 (Laser Surface Alloying of Mn-Ni-Al Bronze for Cavitation Erosion Resistance)

Laser Surface Alloying of Mn-Ni-Al Bronze for Cavitation Erosion Resistance
Authors:
Chi Tat Kwok, University of Macau; Macau Peoples Republic of China
Poo Kee Wong, University of Macau; Macau Peoples Republic of China
Fai Tsun Cheng, The Hong Kong Polytechnic University; Hong Kong Peoples Republic of China
Hau Chung Man, The Hong Kong Polytechnic University; Hong Kong Peoples Republic of China
Weng Kin Chan, University of Macau; Macau Peoples Republic of China
Presented at ICALEO 2010

Cavitation erosion of a metal surface is caused by the repeated nucleation, growth and collapse of cavities in vibratory and high-speed flowing liquid. It occur...

ICALEO 2010 Paper #P197 (Evaluation of Optical Sensors for Laser Welding in a Technical Cognitive Environment)

Evaluation of Optical Sensors for Laser Welding in a Technical Cognitive Environment
Authors:
Lukas Lohaus, Lehrstuhl für Photonik und Terahertztechnologie, Ruhr-Universität Bochum; - USA
Thibault Bautze, Institute of Date Processing and CoTeSys, Technische Universität Műnchen; Munich Germany
Presented at ICALEO 2010

Focal spot positioning and robot path control require online measurement of the distance between a welding head and the workpiece to be processed. For autonomously working applications, such as cognitive focal shift control, distance measurements can be used to teach coaxial video images at different distances. This paper compares optical sensors based on laser tri...

ICALEO 2010 Paper #P199 (Laser Parallel Micro/Nano Patterning of Hydrophobic Surfaces in Optical Near Fields)

Laser Parallel Micro/Nano Patterning of Hydrophobic Surfaces in Optical Near Fields
Authors:
Ashfaq Khan, Laser Processing Research Centre, School of Mechanical, Aerospace and Civil Engineering, The University of Manchester; Manchester Great Britain
Zengbo Wang, Laser Processing Research Centre, School of Mechanical, Aerospace and Civil Engineering, The University of Manchester; Manchester Great Britain
Mohammad A Sheikh, Laser Processing Research Centre, School of Mechanical, Aerospace and Civil Engineering, The University of Manchester; Manchester Great Britain
David J Whitehead, Laser Processing Research Centre, School of Mechanical, Aerospace and Civil Engineering, The ...