NIST Special PublicationThe Institute, 2002 |
From inside the book
Results 1-5 of 52
Page v
... Transfer of a TIG - Welded Part with Complex Geometry B4-2 M. Ericsson , University of Trollhattan / Uddevalla , Sweden Dynamic Modeling of GTAW for Rapid Manufacturing ..... 309 Prof. R. Kovacevic , SMU , Richardson , Texas ...
... Transfer of a TIG - Welded Part with Complex Geometry B4-2 M. Ericsson , University of Trollhattan / Uddevalla , Sweden Dynamic Modeling of GTAW for Rapid Manufacturing ..... 309 Prof. R. Kovacevic , SMU , Richardson , Texas ...
Page 4
... transfer or using thick wire diameter for low average welding current . Peak duration -Background duration Peak ... transfer Below IT- Globular metal transfer ; IB - Background current ( A ) Vp - Peak voltage ( V ) ; VB - Background ...
... transfer or using thick wire diameter for low average welding current . Peak duration -Background duration Peak ... transfer Below IT- Globular metal transfer ; IB - Background current ( A ) Vp - Peak voltage ( V ) ; VB - Background ...
Page 6
... the intentional pulsing . The reason for these variations is that when the droplet was transferred , the instantaneous arc voltage momentarily increased and formed voltage spikes on the peak voltage levels along the peak duration . 6.
... the intentional pulsing . The reason for these variations is that when the droplet was transferred , the instantaneous arc voltage momentarily increased and formed voltage spikes on the peak voltage levels along the peak duration . 6.
Page 7
... transferred from the oscilloscope to a personal computer and saved for later analysis . The personal computer was equipped with the General purpose Instrumentation Bus ( GB - IB ) for current and voltage data acquisition . Totally 1000 ...
... transferred from the oscilloscope to a personal computer and saved for later analysis . The personal computer was equipped with the General purpose Instrumentation Bus ( GB - IB ) for current and voltage data acquisition . Totally 1000 ...
Page 21
... transfer and weld pool penetration . INTRODUCTION The results of the previous researches showed that metal transfer and weld pool penetration both have a large influence on the generation of the defects such as undercut , burn through ...
... transfer and weld pool penetration . INTRODUCTION The results of the previous researches showed that metal transfer and weld pool penetration both have a large influence on the generation of the defects such as undercut , burn through ...
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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.