NIST Special PublicationThe Institute, 2002 |
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Page 4
... length disturbance . Studies on the arc characteristics are very important to understand the stability of arc under various pulsing conditions . Therefore , studies are carried out by focusing efforts on solving these problems . Peak ...
... length disturbance . Studies on the arc characteristics are very important to understand the stability of arc under various pulsing conditions . Therefore , studies are carried out by focusing efforts on solving these problems . Peak ...
Page 10
... length . Zone ' F ' In the zone ' F ' , arc breaks because of the excessive arc length . Therefore , this zone is highly undesirable . Filler metal Droplet detachment time = 5.33 ms Stages of 10.
... length . Zone ' F ' In the zone ' F ' , arc breaks because of the excessive arc length . Therefore , this zone is highly undesirable . Filler metal Droplet detachment time = 5.33 ms Stages of 10.
Page 43
... length of time , and returned the processed values of the sampled data when queried . One type of processing performed was excluding sampled arc voltage readings from the average when sampled arc current was below peak levels . BLOCK ...
... length of time , and returned the processed values of the sampled data when queried . One type of processing performed was excluding sampled arc voltage readings from the average when sampled arc current was below peak levels . BLOCK ...
Page 47
... length . This paper presents the dynamic simulation of wire melting by using the variable space network method and by modeling the heat flux from the molten end of the wire into the electrode . A new type of arc rotation mechanism with ...
... length . This paper presents the dynamic simulation of wire melting by using the variable space network method and by modeling the heat flux from the molten end of the wire into the electrode . A new type of arc rotation mechanism with ...
Page 49
... length of the Peclet number is S / Le , where S is the cross - sectional area of wire and L , is the wire extension length . S is in proportion to the volumetric melting rate and Le to the Joule heating inside the electrode . Equation 1 ...
... length of the Peclet number is S / Le , where S is the cross - sectional area of wire and L , is the wire extension length . S is in proportion to the volumetric melting rate and Le to the Joule heating inside the electrode . Equation 1 ...
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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.