NASA NTRS · 19830000211
Holding Tubes in Place for Brazing
Abstract
Simple method prevents loosening due to thermal mismatch. Four segment die pushed outward against tubing wall by tapered ram. Boss on each segment of die produces dimple in wall. Ram driven by commercial pneumatic cylinder powered by air at 250 psi. Method applicable to brazing of heat exchanges, thrust chambers, and other assemblies in which thermal expansion coefficients of materials differ significantly.
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Ambrisco, D., Arbino, P.. 1983-10-01. Holding Tubes in Place for Brazing. https://ntrs.nasa.gov/citations/19830000211
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