NIST Special PublicationThe Institute, 2002 |
From inside the book
Results 1-5 of 55
Page 3
... wire feed speed ( WF ) . Selecting the most suitable GMAW - P parameter is very complex due to interdependence of parameters . Therefore effects of the GMAW - P parameters on different types of droplet detachments , namely one droplet ...
... wire feed speed ( WF ) . Selecting the most suitable GMAW - P parameter is very complex due to interdependence of parameters . Therefore effects of the GMAW - P parameters on different types of droplet detachments , namely one droplet ...
Page 4
... wire diameter for low average welding current . Peak duration -Background duration Peak duration -Background duration A verage current Spray current level Background_ current Time , ms a ) Pulsed current Peak current Voltage , V ...
... wire diameter for low average welding current . Peak duration -Background duration Peak duration -Background duration A verage current Spray current level Background_ current Time , ms a ) Pulsed current Peak current Voltage , V ...
Page 5
... channel , digital storage oscilloscope . The peak duration , wire feed speed , and cycle time could be independently adjusted using the welding power supply control . 10 1 16 T 1. Personal computer 2. Double channel 5.
... channel , digital storage oscilloscope . The peak duration , wire feed speed , and cycle time could be independently adjusted using the welding power supply control . 10 1 16 T 1. Personal computer 2. Double channel 5.
Page 8
... wire speed of 100 mm's . The welding torch was positioned normal to the base metal surface . Filler metal was connected to the direct - current - electrode- positive ( DCEP ) polarity . Prior to welding , the oxide film was removed from ...
... wire speed of 100 mm's . The welding torch was positioned normal to the base metal surface . Filler metal was connected to the direct - current - electrode- positive ( DCEP ) polarity . Prior to welding , the oxide film was removed from ...
Page 13
... wire feed rate , WF = 100 mm / s , automatically this particular pulsed waveform is selected , and the operator gets good quality weld . Thus process - integrated quality assurance of the weld can be possible on the basis of more ...
... wire feed rate , WF = 100 mm / s , automatically this particular pulsed waveform is selected , and the operator gets good quality weld . Thus process - integrated quality assurance of the weld can be possible on the basis of more ...
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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.