AWS D17.1 Endorsement case studies
AWS D17.1 Endorsement · Put your knowledge to work in context.
The Aerospace (D17.1) endorsement is one of the CWI and SCWI endorsements listed by the American Welding Society alongside Structural Steel (D1.1), Structural Aluminum (D1.2), Bridge Welding (D1.5), Railroad (D15.1), Pipeline (API 1104), and several NDE and coordination endorsements. It is designed for inspectors who already hold or are pursuing AWS inspector credentials and who want to demonstrate code-specific knowledge of aerospace fusion welding practice rather than general structural work. The AWS D17.1 Endorsement case studies are 5 cases and about 1,834 words.
1Fusion-Discontinuity Disposition in a D17.1 Repair
A fabrication shop is welding a 0.125 in (3.2 mm) thick 321 stainless steel fuel-line bracket per a D17.1 drawing note. The welder completes a single-pass autogenous GTAW butt joint and the inspector finds a 0.060 in (1.5 mm) linear indication on the radiograph, oriented transverse to the weld.
417 words, about 2 min2Thickness-Range Trap in a WPS Revision
A welding engineer is revising a GTAW WPS for 6061-T6 aluminum aerospace brackets. The original PQR was qualified on 0.250 in (6.4 mm) plate with a single-pass butt joint.
389 words, about 2 min3Welder Performance vs. Procedure Qualification
A certified GTAW welder with 12 years of experience is assigned to a D17.1 Class A joint in 0.063 in (1.6 mm) titanium. The welder's performance qualification was earned on 0.125 in stainless steel in the 6G position two years ago.
331 words, about 2 min4Porosity Cluster at the Root of a Class A Weld
A D17.1 Class A circumferential GTAW weld on 0.090 in (2.3 mm) 304L tubing is radiographed. The film shows a scattered cluster of rounded indications at the root, with the largest individual pore approximately 0.020 in (0.5 mm) and a cluster length of about 0.080 in (2.0 mm).
365 words, about 2 min5Preheat Decision on a Thick-Section D17.1 Joint
A D17.1 shop is welding a 0.750 in (19 mm) thick 17-4 PH stainless steel actuator housing with GTAW. Ambient shop temperature is 55°F (13°C) and the part has been stored outdoors overnight.
332 words, about 2 min