Actions for Weld peaking on heavy aluminum structures

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Weld peaking on heavy aluminum structures

Author
Bayless, E.
Published
Jun 1, 1978.
Physical Description
1 electronic document
Additional Creators
Poorman, R. and Sexton, J.
Online Version

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Unclassified, Unlimited, Publicly available.
Free-to-read Unrestricted online access
Summary
Weld peaking is usually undesirable in any welded structure. In heavy structures, the forces involved in the welding process become very large and difficult to handle. With the shuttle's solid rocket booster, the weld peaking resulted in two major problems: (1) reduced mechanical properties across the weld joint, and (2) fit-up difficulties in subsequent assembly operation. Peaking from the weld shrinkage forces can be fairly well predicted in simple structures; however, in welding complicated assemblies, the amount of peaking is unpredictable because of unknown stresses from machining and forming, stresses induced by the fixturing, and stresses from welds in other parts of the assembly. When excessive peaking is encountered, it can be corrected using the shrinkage forces resulting from the welding process. Application of these forces is discussed in this report.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 19780017484.
Accession ID: 78N25427.
NASA-TM-78176.
Terms of Use and Reproduction
No Copyright.
View MARC record | catkey: 15728681