SST Technology Follow-On Program, Phase I. Titanium Alloy Welding.

Lobb, A. E.; Lindh, D. V.; Wahlin, B. M.; Lovell, D. T.

SST Technology Follow-On Program, Phase I. Titanium Alloy Welding.

Active / Technical Report | Accession Number: AD0902460 |

Abstract:

This document summarizes results of development and production efforts on the fusion welding of titanium alloys, primarily Ti-6Al-4V, for the SST prototype. It covers discussions on process development and controls, mechanical properties of joints, joint design, environmental effects on weldments, and hardware producibility on a scale-up basis using the various fusion welding processes. Development efforts involving the following welding processes are described gas tugsten arc welding GTAW, gas metal arch welding GMAW, plasma arc welding PAW, in place tube welding, and electron beam welding EBW. In addition, filler wire evaluation is included. Fatigue data, effects of defects and weld repair, and residual stress and stress relief investigations are presented. Typical SST prototype welding applications are illustrated. Process and material specifications resulting from this effort are included. Recommendations for future work are described. Author

Author(s):

Lobb, A. E. ; Lindh, D. V. ; Wahlin, B. M. ; Lovell, D. T.

Author Organization(s):

BOEING COMMERCIAL AIRPLANE CO SEATTLE WA

Descriptive Note:

Final rept. on Task 1,

Supplementary Note:

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:

Approved For Public Release

RECORD

Collection: TR

Identifying Numbers

Report Number(s):

D6-60209, FAA-SS-72-09

Contract/Grant Number(s):

DOT-FA-SS-71-12

Monitor Series:

72-09

Subject Terms

Communities of Interest:

No COI(s) Identified

Descriptor(s):

*JET TRANSPORT AIRCRAFT, *AIRFRAMES, *TITANIUM ALLOYS, WELDING, INERT GAS WELDING, ARC WELDING, ELECTRON BEAM WELDING, FATIGUE(MECHANICS), DEFECTS(MATERIALS), WELDS, WELDABILITY, STRESSES, STRESS RELIEVING, SPECIFICATIONS, MAINTENANCE, THERMAL STRESSES, ALUMINUM ALLOYS, VANADIUM ALLOYS, SUPERSONIC AIRCRAFT

Field(s)/Group(s):

Transport Aircraft, Metallurgy and Metallography

Keyword(s):

GAS METAL ARC WELDING, GAS TUNGSTEN ARC WELDING, PLASMA ARC WELDING, SST TECHNOLOGY FOLLOW ON PROGRAM, SUPERSONIC TRANSPORTS, TITANIUM ALLOY 6AL 4V

Report Date:

1972 Jul 01