NDLI: Weld bead reinforcement removal: a method of improving the strength and ductility of peaked welds in 2219-t87 aluminum alloy plate

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Weld bead reinforcement removal: a method of improving the strength and ductility of peaked welds in 2219-t87 aluminum alloy plate

Content Provider	NASA Technical Reports Server (NTRS)
Author	Lovoy, C. V.
Copyright Year	1979
Description	The results of a study to determine the degree to which the ductility and tensile properties of peaked welds could be enhanced by removing the reinforcing bead and fairing the weld nugget into the adjacent parent metal are presented. The study employed 2219-T87 aluminum alloy plate, tungsten inert gas (TIG) welding, and 2319 filler wire. The study concluded that significant improvements in peak weld, ultimate strength, and ductility can be obtained through removal and fairing of the weld reinforcing bead. The specimens so treated and tested in this program exhibited ultimate strength improvements of 2 to 3 percent for peak angles of 5.8 to 10 degrees and 10 to 22 percent for welds with peak angles of 11.7 to 16.9 degrees. It was also determined that removal of the weld bead enhanced the ability of peaked welds to straighten when exposed to cyclic loading at stress levels above the yield strength.
File Size	5691003
Page Count	35
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19790013180
Archival Resource Key	ark:/13960/t3tt9dw7r
Language	English
Publisher Date	1979-01-01
Access Restriction	Open
Subject Keyword	Mechanical Engineering Removal Tables Data Metal Plates Ductility Weld Strength Aluminum Alloys Graphs Charts Tensile Properties Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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