High-Vacuum Annealing of Ultra-Clean / High Performance Welding Wire
Photo courtesy of
www.usweldingcorp.com
This critical welding wire presented California Brazing with a unique heat treating challenge: the project required vacuum annealing to obtain minimum physical properties without yielding detectable surface contamination or oxidation. To achieve these requirements, we used high-vacuum annealing in the 10-6 Torr Range vacuum level. We used a combination of nickel and cobalt base superalloys, and adhered to ASTM E18, ASTM E10 and ASTM E8 testing specifications. Our customer’s testing requirements included hardness and tensile testing, as well as surface analysis. We provided our client with testing reports, certificates of conformance, and furnace profile charts. When we were certain we had met and surpassed our client’s expectations, we delivered the high-performance welding wire to our client, to be used in turbine and aerospace structural repair applications.
To learn more about this project, see below or contact California Brazing for more information
Ultra-Clean / High Performance Welding Wire Specifications:
Heat Treating Challenge: | Vacuum anneal to obtain minimum physical properties while yielding no detectable surface contamination or oxidation. |
Customer Testing Requirements: | Hardness Testing / Tensile Testing / Surface Analysis |
Customer Documentation Requirements: | Testing Reports / Certificates of Conformance / Furnace Profile Charts |
Testing Specifications: | ASTM E18 / ASTM E10 / ASTM E8 |
Industries: | Aerospace / Military & Defense / Nuclear / Energy |
Application: | Turbine and Structural Repair |
Alloy: | Nickel and Cobalt Base Superalloys |
Alloy Grades: | AISI / SAE / AMS / AWS / Proprietary / Custom Vacuum Melted |
Process: | High-Vacuum Annealing |
Lead Time: | 24 hours (maximum) |
Vacuum Level: | 10-6 Torr Range |
Quenchant: | Argon |
Backfill Gas Dewpoint: | -90°F (minimum) per CGA G-10.1 2008 |
Backfill Gas Purity: | 99.999% mole (minimum) per CGA G-10.1 2008 |
Process Specifications: | AMS 2759 / AMS-H-6875 / MIL-H-6875 / AMS 2769 / AMS 2774 / Special Customer Requirements |
Pyrometry and Instrumentation Calibration: | AMS 2750D (+/- 10°F from 900°F to 2150°F) |
Furnace Leak-Back Requirements: | 5 micron per hour (maximum) |
Quality Systems: | AC7004 / AC7102 / ISO9001:2008 |
Approvals Required: | Customer / Aerospace Prime |
Accreditations Required: | Nadcap |