ICALEO 2006 Paper #1606 (Surface Layer Modification of AlSi6Cu4 Aluminium Alloy via CO2 Laser Treatment)
Surface Layer Modification of AlSi6Cu4 Aluminium Alloy via CO2 Laser Treatment
Authors:
Andrzej Wolynski, Poznan University of Technology; Poznan Poland
Jacek Borowski, Poznan University of Technology; Poznan Poland
Konrad Bartkowiak, Fraunhofer Center for Coatings and Laser Appliations; Plymouth MI USA
Konrad Bartkowiak, Poznan University of Technology; Poznan Poland
Leszek Foltynowicz , Poznan University of Technology; Poznan Poland
Presented at ICALEO 2006
The AlSi6Cu4 is a well known aluminum alloy used for combustion engine cylinder heads in mass production. Long life of the engine is important requirement in the world-wide automotive mar...$28.00
ICALEO 2006 Paper #1605 (Empirical Modelling of Laser Texturing of 304L Stainless Steel)
Empirical Modelling of Laser Texturing of 304L Stainless Steel
Authors:
Adriana Soveja, LTm - IUT Le Creusot; Le Creusot France
Eugen Cicala, University Politehnica of Timisoara; Timisoara Romania
Bruno Martin, ISAT Nevers; Nevers Cedex France
Gerard Duffet, IUT Chalon sur Saone; Chalone sur Saone France
Dominique Grevey, LTm - IUT Le Creusot; Le Creusot France
Jean-Marie Jouvard, LTm - IUT Le Creusot; Le Creusot France
Presented at ICALEO 2006
The automotive industry needs for tools with textured metallic surfaces increased progressively during the last years. In response to these needs, the texturing process has evolved in view ...$28.00
ICALEO 2006 Paper #1604 (Integrated Heat Treatment - Comparison of Different Machine Concepts)
Integrated Heat Treatment - Comparison of Different Machine Concepts
Authors:
Steffen Bonss, Fraunhofer IWS; Dresden Germany
Jan Hannweber, Fraunhofer IWS; Dresden Germany
Marko Seifert, Fraunhofer IWS; Dresden Germany
Udo Karsunke, Fraunhofer IWS; Dresden Germany
Berndt Brenner, Fraunhofer IWS; Dresden Germany
Eckhard Beyer, Fraunhofer IWS; Dresden Germany
Presented at ICALEO 2006
Heat treatment of machine components or automotive parts traditionally is done at separate facilities or companies. Very effective manufacturing becomes possible if heat treatment processes can be integrated in line to avoid logistics and to save time a...$28.00
ICALEO 2006 Paper #1603 (Experimental Analysis of Laser Stripping Effects on Thin Composites)
Experimental Analysis of Laser Stripping Effects on Thin Composites
Authors:
Ted Reutzel, ARL, The Penn State University; State College PA USA
Kent Knock, Sikorsky Aircraft Corporation; Stratford CT USA
Mitch Wool, General Lasertronics Corporation; San Jose CA USA
Ken Meinert, ARL Penn State; State College PA USA
Presented at ICALEO 2006
Currently, orbital hand sanding is used to remove paint from composite rotor blades during refurbishment operations. This method is time consuming, expensive, generates significant hazardous waste, and often results in secondary damage to the blade. Safe, effective removal of paint can be achieved using laser processing ...$28.00
ICALEO 2006 Paper #1602 (Dual Function Laser Surface Treatment Improves Die Casting Die Life)
Dual Function Laser Surface Treatment Improves Die Casting Die Life
Authors:
Zhiyue Xu, Argonne National Laboratory; Argonne IL USA
Claude B. Reed, Argonne National Laboratory; Argonne IL USA
Presented at ICALEO 2006
Aluminum die casting dies, used to cast the light automobile parts for better fuel economy, face two major failure mechanisms: hot check and soldering. Hot check is a failure phenomenon of surface thermal cracks caused by thermal cycling loads during die casting. And soldering is a failure in which the melted aluminum chemically reacts with die surface material and bonds to the surface after solidification. Die casting dies are extremely expensive and their costs accou...$28.00
ICALEO 2006 Paper #1601 (Optimisation of Production Rate in Diode Laser Hardening)
Optimisation of Production Rate in Diode Laser Hardening
Authors:
Barbara Previtali, Politecnico Di Milano; Milano Italy
Edoardo Capello, Politecnico di Milano; milan Italy
Moreno Castelnuovo, Politecnico di Milano; Milano Italy
Presented at ICALEO 2006
Thanks to the development of diode lasers, laser hardening of steels has become a stable, less expensive and reliable process if compared to CO2 laser hardening. Nevertheless, it is still characterized by a low production rate, and the time required for the hardening of a component is often not compatible with the limited cycle time imposed by the high investment costs of the laser technology. The present paper is a con...$28.00
ICALEO 2006 Paper #1509 (Laser Surface Modification of NiTi with Mo and Zr)
Laser Surface Modification of NiTi with Mo and Zr
Authors:
HC Man, The Hong Kong Polytechnic University; Hong Kong
Ng Ka Wai, Hong Kong Polytechnic University; Hong Kong
TM Yue, The Hong Kong Polytechnic University; Hong Kong
Presented at ICALEO 2006
Because of its biocompatibility, superelasticity and shape memory characteristics, NiTi alloys have been gaining immerse interest in the medical field. Applications such as stent and other implant devices have been widely accepted in the industry. However, there are still concerns on the wear resistance of this alloy if it is going to be implanted for a long time. Debris from wear and the subsequent release of Ni+ i...$28.00
ICALEO 2006 Paper #1508 (3-D Biomimetic Micro-Channel Network by Laser Direct Writing)
3-D Biomimetic Micro-Channel Network by Laser Direct Writing
Authors:
Donghyuck Kam, University of Michigan; Ann Arbor MI USA
Presented at ICALEO 2006
Nanosecond and femtosecond near IR laser direct write is a useful tool for fabricating 3D, multiple-level microfluidic structures. Using a diode-pumped nanosecond fundamental Nd:YAG laser, multi-depth, multi-width microstructures on silicon were fabricated without lithography-based technology. The molten material inside the microchannel was ejected by a modified assist gas and thus the amuount of laser ablation was increased. The solidified molten material and the debris build-up due to the strong thermal reaction of silicon to the nanosecond IR...$28.00
ICALEO 2006 Paper #1506 (CO2 Laser Irradiation of a Magnesia Partially Stabilized Zirconia (MgO-PSZ) Bioceramic and the Subsequent Improvements in Human Osteoblast Cell Adhesion)
CO2 Laser Irradiation of a Magnesia Partially Stabilized Zirconia (MgO-PSZ) Bioceramic and the Subsequent Improvements in Human Osteoblast Cell Adhesion
Authors:
Jonathan Lawrence, Loughborough University; Leicestershire Great Britain
Liang Hao, Loughborough University; Leicestershire Great Britain
Presented at ICALEO 2006
In order to acquire the ideal surface properties to favour osseointegration at the implant-bone interface, osteoblast cells were used in an in vitro test to examine changes in cell adhesion on a magnesia partially stabilised zirconia (MgO-PSZ) bioceramic after CO2 laser treatment. The surface roughness, microstructure, crystal size and surface energy of untreated...$28.00
ICALEO 2006 Paper #1505 (Laser-Induced Wettability Characteristics Modification and the Effect Thereof on Cell Response on a Titanium Alloy)
Laser-Induced Wettability Characteristics Modification and the Effect Thereof on Cell Response on a Titanium Alloy
Authors:
Jonathan Lawrence, Loughborough University; Leicestershire Great Britain
Liang Hao, Loughborough University; Leicestershire Great Britain
Presented at ICALEO 2006
It was found that interaction of a Nd:YAG laser beam with the Ti6Al4V alloy resulted in the wettability characteristics of the bio-metal improving. Such improvements in the wettability characteristics of the Ti6Al4V alloy were found to be due to: an increase in the surface roughness; and increase in the surface oxygen content and an increase in the polar component of the surface energy. From in vitro...$28.00
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