NIST Special PublicationThe Institute, 2002 |
From inside the book
Results 1-5 of 43
Page v
... Laser Weld Keyhole Dynamics : Simulation and Experiment Dr. D. F. Farson , OSU , Columbus , Ohio 289 B3-2 Finite Element Modeling on Welding Processes and Welding Phenomena Dr. B. Palotas , Budapest University of Technology and ...
... Laser Weld Keyhole Dynamics : Simulation and Experiment Dr. D. F. Farson , OSU , Columbus , Ohio 289 B3-2 Finite Element Modeling on Welding Processes and Welding Phenomena Dr. B. Palotas , Budapest University of Technology and ...
Page 22
... laser . Current and voltage sensors are integrated with a data acquisition system . A positioning system driven by stepper motors is also interfaced with the system . A CCD camera with high shutter speed is attached to the front of the ...
... laser . Current and voltage sensors are integrated with a data acquisition system . A positioning system driven by stepper motors is also interfaced with the system . A CCD camera with high shutter speed is attached to the front of the ...
Page 26
... laser source . This is done after a droplet detaches during the period of the base current . A band pass filter that allows 330 nm N2 laser light to pass through is attached to the front of the camera . The light is guided through a ...
... laser source . This is done after a droplet detaches during the period of the base current . A band pass filter that allows 330 nm N2 laser light to pass through is attached to the front of the camera . The light is guided through a ...
Page 31
... laser are used . Due to the extreme brightness these approaches are using the shadowgraphing technique , described by Allemand et . al . ( Ref . 1 ) . For the mentioned problems the systems are unsuitable due to a set of disadvantages ...
... laser are used . Due to the extreme brightness these approaches are using the shadowgraphing technique , described by Allemand et . al . ( Ref . 1 ) . For the mentioned problems the systems are unsuitable due to a set of disadvantages ...
Page 44
... laser printer . Trials were also conducted to determine optimum attenuation factors and maximum move factors for vertical and horizontal tracking . Tracking was given time to stabilize and then a step change was made to either the cross ...
... laser printer . Trials were also conducted to determine optimum attenuation factors and maximum move factors for vertical and horizontal tracking . Tracking was given time to stabilize and then a step change was made to either the cross ...
Contents
3 | |
21 | |
31 | |
39 | |
47 | |
57 | |
71 | |
79 | |
147 | |
155 | |
173 | |
183 | |
203 | |
211 | |
223 | |
233 | |
87 | |
97 | |
105 | |
117 | |
125 | |
137 | |
241 | |
251 | |
265 | |
281 | |
297 | |
317 | |
Other editions - View all
Common terms and phrases
algorithm analysis angular distortion arc length arc voltage average current background duration boundary butt weldment calculated camera coefficient of variation detachment during peak developed droplet detachment dynamic effect electrode equation experimental Figure filler metal Friction Stir Welding geometry GMAW GMAW-P GTA weld GTAW hoop stress increase interface keyhole laser machine vision martensite material measured mechanical melting metal arc welding method microstructure mm/min mm/s mode molten pool monitoring NIST oscillation frequency peak duration penetration plasma arc welding plate predicted procedure pulsed current resetting residual stress robot rotational sensor shear stress shown in Fig splash strain structure surface technique Technology thermal types of droplet variation VPPAW waveform weld diameter weld fixture weld joint weld pool weld quality welding current Welding Journal welding parameters welding power supply welding process welding simulation welding speed width wire feed speed workpiece zone
Popular passages
Page ii - Certain commercial equipment, instruments, or materials are identified in this paper in order to adequately specify the experimental procedure. Such identification does not imply recommendation or endorsement by the National Institute of Standards and Technology, nor does it imply that the materials or equipment identified are necessarily the best available for the purpose.
Page 94 - Proceedings of the institution of Mechanical Engineers; Part B: Journal of Engineering Manufacture, Vol. 207, pp.9- 1 4, 1 993 [4] Soar RC and Dickens, PM, "Design of Laminated Tooling for High Pressure Die -Casting," Proceedings-SPIE The international society for Optical Engineering, pp.
Page 123 - Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy.