NASA NTRS · 19990061889
MPTA Overview
Abstract
Presentation discusses Micro Plasma Transfer Arc (MPTA) welding. It was introduced in 1960, and has been used for blade refurbishment for jet engines since 1980. It is compared with Gas Tungsten Arc Welding. MPTA welding reduces the heat input to perform the weld. It uses controlled filler material, and it is easy to use.
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Weeks, Jack. 1999-04-13. MPTA Overview. https://ntrs.nasa.gov/citations/19990061889
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