Fundamental Mechanisms Affecting Friction Welding under Vacuum
Abstract
Inertia welding of 2024-T3 aluminum alloy studs to 2024-T3 plate is investigated at atmospheric pressure and under vacuum to determine the effects of vacuum, surface contamination, material, weld force and weld speed on the integrity of the weld. The vacuum conditions are limited to 10 torr or less due to experimental apparatus. The fundamental parameters involved in inertia friction welding are investigated here to lead to the development of a mathematical model for their affects in on-orbit welding in the construction of a space station. A bend test is used to determine a sufficient weld. The special conditions required for on orbit welding are discussed along with a survey of current welding methods and there feasibility and limitations for space station construction. Friction welding, as one of only a few joining techniques that is showing promise for all areas of concern for construction in space: minimal power consumption, ease of automation, minimal operator skill and lack of toxic by products, is discussed in detail prior to the experimental presentation.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1991
- Accession Number
- ADA245685
Entities
People
- Benedicta R. Jacoby
Organizations
- Massachusetts Institute of Technology