NIST Special PublicationThe Institute, 2002 |
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... develop , maintain , and retain custody of the national standards of measurement , and provide the means and methods for comparing standards used in science , engineering , manufacturing , commerce , industry , and education with the ...
... develop , maintain , and retain custody of the national standards of measurement , and provide the means and methods for comparing standards used in science , engineering , manufacturing , commerce , industry , and education with the ...
Page 3
... developed computer software EL - JS . The statistical analysis was carried out to determine uniformity of average current . Results show that one droplet detachment during peak duration can provide stable weld compared to other types of ...
... developed computer software EL - JS . The statistical analysis was carried out to determine uniformity of average current . Results show that one droplet detachment during peak duration can provide stable weld compared to other types of ...
Page 7
... developed computer package EL - JS . The average current per cycle time was calculated by dividing area of waveform under one pulse by pulse cycle time . Statistical analysis was carried out on the basis of mean average current ...
... developed computer package EL - JS . The average current per cycle time was calculated by dividing area of waveform under one pulse by pulse cycle time . Statistical analysis was carried out on the basis of mean average current ...
Page 24
... developed using a high frame rate camera as a vision sensor to detect the vertical coordinate of the droplet along the axis of the wire ( Ref . 13-14 ) . However , there are some issues that still need to be addressed , such as the ...
... developed using a high frame rate camera as a vision sensor to detect the vertical coordinate of the droplet along the axis of the wire ( Ref . 13-14 ) . However , there are some issues that still need to be addressed , such as the ...
Page 25
... developed based on the composite wave form using C ( a ) Bordering the middle part of an image ( b ) Prewitt gradient edge enhancement ( c ) Scanning an image differentially subtracted ( d ) Worm tracing of an edge for binary image ( e ) ...
... developed based on the composite wave form using C ( a ) Bordering the middle part of an image ( b ) Prewitt gradient edge enhancement ( c ) Scanning an image differentially subtracted ( d ) Worm tracing of an edge for binary image ( e ) ...
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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.