J. Kowalewski, SECO/WARWICK Corporation, Meadville, PA
Each brazing material and braze filler combination behaves differently during the vacuum brazing operation and each circumstance must be evaluated separately to confirm that the desired properties have been attained. Successful brazing requires no more than common sense and some basic metallurgical understanding. 90% of the successful outcome is attributable to preparation; cleanliness, consistency of fit, correct gap at the brazing temperature, good jigging and optimum placement of the correct amount of braze filler. The paper will discuss the following: 1. How to check vacuum furnace at the end of the brazing process. 2. How to evaluate temperature, time, vacuum curves and other vacuum process parameters. 3. Possible furnace problems and what to expect.
Each brazing material and braze filler combination behaves differently during the vacuum brazing operation and each circumstance must be evaluated separately to confirm that the desired properties have been attained. Successful brazing requires no more than common sense and some basic metallurgical understanding. 90% of the successful outcome is attributable to preparation; cleanliness, consistency of fit, correct gap at the brazing temperature, good jigging and optimum placement of the correct amount of braze filler.
The paper will discuss the following:
1. How to check vacuum furnace at the end of the brazing process.
2. How to evaluate temperature, time, vacuum curves and other vacuum process parameters.
3. Possible furnace problems and what to expect.
