IN-SPACE COLDWELDING TESTS.
Abstract
The experimental studies include the development of a system to perform direct in-space measurements of coldwelding between periodically contacted metal combinations. Included are preflight ultrahigh vacuum simulation test results under varying mechanical testing conditions. These tests fail to show any basis upon which to make direct extrapolations of materials coldwelding data to the same materials in component configurations. Also strong evidence was obtained which indicates that the tenacity of residual surface contaminants under normal force loading can preclude the occurrence of significant coldwelding. The flight results presented represent the first actual in-space coldwelding data pertinent to the engineering problem. This information further serves as a basis for examining the adequacy of ground simulation test environments, and coldwelding test criteria. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1967
- Accession Number
- AD0380181
Entities
People
- J. Rodman
- R. J. Martin
- R. L. Hammel