INVESTIGATION OF DISTORTION REMOVAL IN WELDED STRUCTURES

The objective of the study is to investigate mechanisms of flame straightening with emphasis on its effectiveness on high-strength-steel structures. In the Phase 1 study an investigation was made of mechanisms of flame straightening on simple weldments in low-carbon steel and HY-80 steel (quenched and tempered steel with specified minimum yield strength of 80,000 psi). Flame straightening was two to three times more effective on low-carbon steel specimens than on HY-80 steel specimens. In the Phase 2 study an investigation was made of mechanisms of flame straightening on framed panel structures. The specimens were made in low-carbon steel (AISI 1020), low-alloy high-strength steel (U.S. Steel CORTEN), and quenched and tempered steel (U.S. Steel T-1). It was also found that flame straightening techniques were more effective on low-carbon steel specimens than on high-strength steel specimens. (Author)

• Corporate Authors:

  Massachusetts Institute of Technology

  Department of Naval Architecture and Marine Engineering
  Cambridge, MA  United States  02139
• Authors:
  • Walsh, R A
  • Duffy, D K
  • Masubuchi, K
• Publication Date: 1970-11

Media Info

• Pagination: 51 p.

Subject/Index Terms

• TRT Terms: HY 80 steel; Joints (Engineering); Low alloy steel; Ship structural components; Welds
• Uncontrolled Terms: Welded joints
• Old TRIS Terms: Flame straightening
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00019206
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: Tech Rpt
• Contract Numbers: DOT-CG-92784
• Files: TRIS
• Created Date: Nov 8 1973 12:00AM