ICALEO 2009 Paper #602 (Effects of Internal Design Geometry in De Laval Nozzles for Off-Axis Assist Gas Injection on Inert-Gas Laser Cutting Performance)
Effects of Internal Design Geometry in De Laval Nozzles for Off-Axis Assist Gas Injection on Inert-Gas Laser Cutting Performance
Authors:
Antonio Riveiro, Universidade De Vigo; Vigo Spain
Felix Quintero, Universidade De Vigo; Vigo Spain
Rafael Comesana, Universidade De Vigo; Vigo Spain
Jesus Del Val, Universidade De Vigo; Vigo Spain
Mohamed Boutinguiza, Universidade De Vigo; Vigo Spain
Fernando Lusquinos, Universidade De Vigo; Vigo Spain
Juan Pou, Universidade De Vigo; Vigo Spain
Presented at ICALEO 2009
The aerodynamic interactions of the assist gas during fusion laser cutting are an essential parameter determining c...$28.00
ICALEO 2009 Paper #601 (Scaling Laws for the Reactive-Gas Laser Cutting of Thick Steel Sheets)
Scaling Laws for the Reactive-Gas Laser Cutting of Thick Steel Sheets
Authors:
Anatoly Orishich, Institute of Theoretical and Applied Mechanics, Russian Academy of Sciences, Sib; Novosibirsk Russia
Alexandr Malikov, Itpm Sb Ras; Novosibirsk Russia
Victor Shulyatyev, Itpm Sb Ras; Novosibirsk Russia
Presented at ICALEO 2009
In spite of many investigations, modern theoretical models do not allow to predict the optimum modes of the laser cutting from the viewpoint of the minimum roughness. This is particularly important for thick sheets. In the present paper, for the case of low-carbon steel of 5 25 mm thick, we defined experimentally the parameter range at which the cu...$28.00
ICALEO 2009 Paper #509 (Investigation on the Electrochemical Catalysis Properties of NI-Decorated Nanoporous Copper Formed by Hybrid Laser Deposition)
Investigation on the Electrochemical Catalysis Properties of NI-Decorated Nanoporous Copper Formed by Hybrid Laser Deposition
Authors:
Yu Gu, Tsinghua University, Dept of Mechanical Engineering; Beijing Peoples Republic of China
Mingxing Ma, Tsinghua University, Dept of Mechanical Engineering; Beijing Peoples Republic of China
Minlin Zhong, Tsinghua University; Beijing Peoples Republic of China
Wenjin Liu, Tsinghua University, Dept of Mechanical Engineering; Beijing Peoples Republic of China
Changsheng Dong, -; -
Yide Kan, -; -
Presented at ICALEO 2009
Nano-alloys or nano-structure often display novel physical, chemical and mech...$28.00
ICALEO 2009 Paper #508 (Nano WC Powder Cold Enhancing of Light Metal Surface by Laser Shock Peening Process)
Nano WC Powder Cold Enhancing of Light Metal Surface by Laser Shock Peening Process
Authors:
Renjie Zhu, Tsinghua University, Dept of Mechanical Engineering; Beijing Peoples Republic of China
Minlin Zhong, Tsinghua University; Beijing Peoples Republic of China
Liang Lv, -; -
Changsheng Dong, -; -
Wenjin Liu, -; -
Presented at ICALEO 2009
Light metal alloys are nowadays widely used as structure materials in aerospace, transportation and electronic industries due to their good strength and light weight. One of the issues is their poor surface hardness resulting in poor wear resistance and shorter life time. Many efforts have been made to hard...$28.00
ICALEO 2009 Paper #507 (New Analysis on Laser-induced Damage Mechnism of CCD Device)
New Analysis on Laser-induced Damage Mechnism of CCD Device
Authors:
Jingjing Dai, Institute of Laser Engineering, Beijing University of Technology; Beijing Peoples Republic of China
Zhiyong Wang, Institute of Laser Engineering, Beijing University of Technology; Beijing Peoples Republic of China
Presented at ICALEO 2009
CCD (Charge Coupled Devices )is a solid-state TV camera tube which is widely used in many fields for its high nicety and sensitivity. However, just because of its high sensitivity to light, it is easily disturbed or damaged by laser. The research on laser inducing effect to CCD is of a great significance. Now the researches on the damage of CCD are focused on the po...$28.00
ICALEO 2009 Paper #506 (Transition Metal Coatings on Graphite Via Laser Processing)
Transition Metal Coatings on Graphite Via Laser Processing
Authors:
Deepak Rajput, Univ. of Tenn. Space Institute; Tullahoma TN USA
Lino Costa, University of Tennessee Space Institute; Tullahoma TN USA
Kathleen Lansford, University of Tennessee Space Institute; Tullahoma TN USA
Alexander Terekhov, -; -
George Murray, University of Tennessee Space Institute; Tullahoma TN USA
William Hofmeister, University of Tennessee Space Institute; Tullahoma TN USA
Presented at ICALEO 2009
Graphite is a potential high temperature structural material due to its low specific gravity and high strength along with exceptional chemical and physicomec...$28.00
ICALEO 2009 Paper #505 (Research and Development of Laser Additive Manufacturing in Northwestern Polytechnical University)
Research and Development of Laser Additive Manufacturing in Northwestern Polytechnical University
Authors:
Weidong Huang, Northwestern Polytechnical University; Xian Peoples Republic of China
Presented at ICALEO 2009
Research of Laser Additive Manufacturing (LAM) began at 1995 at the State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, China. The emphasis has been focused on obtaining excellent mechanical properties for LAMed metal parts through careful control of the material microstructures. The materials of LAMed parts include alloys of titanium, superalloys, and stainlessness steel. The mechanical properties of LAMed samples are usually in the classes of...$28.00
ICALEO 2009 Paper #504 (3D Laser Forming Through Circle Line Heating)
3D Laser Forming Through Circle Line Heating
Authors:
K. Venkadeshwaran, School of Laser Science and Engineering; Jadavpur WA India
Sandip Das, School of Laser Science and Engineering; Jadavpur India
Dipten Misra, School of Laser Science and Engineering; Jadavpur India
Presented at ICALEO 2009
Metal forming by a moving heat source is a proven method for forming a sheet metal into desired shape. Line heating in straight line path is sufficient to form shapes with single curvature. However, to form spatially curved or doubly curved surfaces, it is more convenient to apply circle line heating. A single pass of circle line heating at a stretch for full circle over the plat...$28.00
ICALEO 2009 Paper #503 (Investigations on Interface Debonding of the Particle Reinforced Metal Matrix Composites in Laser Forming)
Investigations on Interface Debonding of the Particle Reinforced Metal Matrix Composites in Laser Forming
Authors:
Furong Liu, Beijing University of Technology; Beijing Peoples Republic of China
K.C. Chan, The Hong Kong Polytechnic University; Hong Kong Hong Kong
C.Y. Tang, The Hong Kong Polytechni University; Hong Kong Hong Kong
J.M. Chen, Beijing University of Technology; Beijing Peoples Republic of China
Presented at ICALEO 2009
Laser forming is a promising technology to deform the work pieces by thermal stress caused by laser irradiations. Up to date, considerable investigations have been carried out to clarify the process, however, much attention has ...$28.00
ICALEO 2009 Paper #502 (Laser Beam Hardening - Energy Efficient Heat Treatment?)
Laser Beam Hardening - Energy Efficient Heat Treatment?
Authors:
Steffen Bonss, Fraunhofer IWS; Dresden Germany
Marko Seifert, Fraunhofer IWS; Dresden Germany
Berndt Brenner, Fraunhofer Iws; Dresden Germany
Eckhard Beyer, Fraunhofer Iws; Dresden Germany
Presented at ICALEO 2009
Laser beam hardening has been established during the last years as a complementary technology for local heat treatment tasks at tool manufacturing and automotive industry. Especially new high power diode lasers and a lot of process supporting systems, what have been developed in recent years, are responsible for the increase of industrial laser hardening applications. In the context...$28.00
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