AWS Certified Welder case studies
AWS Certified Welder · Put your knowledge to work in context.
The AWS Certified Welder Program (CWP) is a performance-based credential. No prerequisite courses or certifications are required to attempt it, and certification provides "transferrable" credentials that you may take with you wherever you go. The AWS Certified Welder case studies are 5 cases and about 3,016 words.
1Vertical-Up Root on 8-Inch Schedule 80 Pipe
A welder is assigned an 8-inch NPS, Schedule 80 carbon steel pipe spool (wall thickness roughly 12.7 mm) using SMAW with a cellulosic electrode for the root and a low-hydrogen electrode for fill and cap. The procedure requires a vertical-up progression.
665 words, about 3 min2Overhead Fillet Weld on Thin Aluminum Plate
A fabricator is building a bracket from 3 mm thick 6061-T6 aluminum plate joined to a 6 mm thick 6061-T6 base using GTAW with 4043 filler. The joint is a T-joint fillet weld performed overhead.
616 words, about 3 min3Horizontal Position Root on Dissimilar Stainless to Carbon Steel
A piping contractor must join a 4-inch NPS Schedule 40 304L stainless steel nozzle to a carbon steel header using GTAW for the root and SMAW for fill and cap. The joint is in the horizontal fixed position, rolled so the welder works around the pipe without rotating it.
592 words, about 3 min4Flat Position Lap Joint on Galvanized Sheet
A maintenance crew is repairing a guardrail assembly made from 2 mm galvanized steel sheet lap-joined to a 5 mm galvanized channel. The joint is in the flat position and will be welded with GMAW short-circuit transfer using ER70S-6 wire and 75/25 argon-CO2 shielding gas.
576 words, about 3 min5Vertical-Down Root on Small-Diameter Pipe
A welder is qualifying on 2-inch NPS Schedule 80 carbon steel pipe using SMAW with a cellulosic electrode in the vertical-down progression. The procedure allows vertical-down for the root and hot pass, with vertical-up for fill and cap.
567 words, about 3 min