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This revolutionary document represents the most significant change
to aviation welding standards in more than 30 years, including coverage
in three areas never addressed in MILSTDs design, repair, and nonflight
hardware. And, for the first time, there are authoritative procedures
for weld repair of inservice existing aerospace flight hardware. In fact,
the standards use of weld repair technology enables weld overhaul beyond
the areas originally designated for a weld. Bolstering the excellent coverage
on inspection is information to avoid both under and overinspection, arising
from the D17 Committees position that, Choosing acceptance criteria beyond
the capability of the welding process may lead to numerous inspection
rejections, increasing costs. To help, tables on acceptance criteria one
in U.S. Customary units, the other in SI units provide distinctions for
Class A, B, and C welds. Also includes an annex offering Guidelines for
Design, Analysis, and Fabrication of Weld Joints. D17.12001 emphasizes
fusion welding of aluminumbased, nickelbased, ironbased, cobaltbased,
magnesiumbased, and titaniumbased alloys using electric arc and high energy
beam processes. SI metric equivalents provided. ANSI Approved.
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