Results 151 to 160 of about 10,810 (250)

Characteristics and performance of the variable polarity plasma arc welding process used in the Space Shuttle external tank [PDF]

open access: yes
Significant advantages of the Variable Polarity Plasma Arc (VPPA) Welding Process include faster welding, fewer repairs, less joint preparation, reduced weldment distortion, and absence of porosity.
Hung, R. J., Lee, C. C., Liu, J. W.
core   +1 more source

Characterization of GTA weldments in 10Ni-8CO-2Cr-1MO steel [PDF]

open access: yes
This study of 10Ni-8Co-2Cr-1Mo steel includes evaluations of tensile, impact, hardness, fracture toughness properties, and metallographic features. Base plate and three weldments in one-inch thicknesses were examined to compare as-welded properties with ...
Smith, H. L., Stonesifer, F. R.
core   +1 more source

Effect of Welding Current and Electrodes on Weld Width in Shielded Metal Arc Welding Process

open access: yesInternational Journal of Mechanical and Production Engineering Research and Development, 2020
Ajit Kumar Yadav Ajit Kumar Yadav, Tjprc
openaire   +1 more source

The variable polarity plasma arc welding process: Its application to the Space Shuttle external tank [PDF]

open access: yes
The technical history of the variable polarity plasma arc (VPPA) welding process being introduced as a partial replacement for the gas shielded tungsten arc process in assembly welding of the space shuttle external tank is described.
Bayless, O. E., Jr.   +4 more
core   +1 more source

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