Shielded Metal Arc Welding II: All Positions

Groove welds and all-position stick welding, followed through an apprentice's path to his CWB all-position plate test at a fabrication shop in Nisku, near Edmonton: groove preparation and backing, root passes with backing and open roots, fill and cap passes, vertical and overhead fillet and groove welds, cutting, preparing and bending test coupons to CSA W47.1, finding, gouging out and repairing weld defects, and a capstone in which the flat, horizontal, vertical and overhead test plates are welded, inspected and bent.

WLD-230 12 lessons · 3 h 21 min ▶ Video lessons coming soon

Offered by HSM University · Welding

This is the Canadian version of this course. See the American version.

What you'll learn

Explain how groove welds differ from fillet welds, identify the parts of a groove, calculate groove cross-sections, and describe plate weld positions and how groove tests qualify positions
Prepare single-V groove joints on backing by cutting, cleaning and checking bevels, fitting backing and run-off tabs, setting the root opening, tacking and pre-setting for distortion
Run root passes on backed grooves that fuse both bevel corners and the backing, with correct current, angles, motion, restarts and cleaning
Run open-root passes on plate with cellulosic electrodes by controlling the keyhole, make sound restarts and hot passes, and calculate heat input from timed passes
Plan and deposit fill and cap passes with correct pass placement, layer splitting, cleaning and interpass temperature control, and meet the visual criteria for test caps
Make vertical-up fillet welds with correct setup, current, angles and weave, and calculate the heat input of vertical passes
Weld vertical groove (3G) plates with backing from root to woven cap while controlling interpass temperature and following test rules
Make overhead fillet welds safely with correct protection, body position, settings and stringer sequences, and estimate overhead welding time
Weld overhead groove (4G) plates with backing using small stringer passes and a stringer cap, and use a practice log to target weaknesses
Lay out, cut, prepare and bend face, root and side bend specimens, calculate bend strain, and judge bend results against acceptance limits
Identify groove weld discontinuities and their causes, excavate defects by grinding and gouging, confirm removal, and make and record repair welds
Take and evaluate an all-position plate qualification test, and interpret the positions, backing condition and thickness range it qualifies

Course content

12 lessons · 3 h 21 min total · final exam

1 From fillets to groove welds 16 min · quiz
2 Groove weld preparation and backing 16 min · quiz
3 Root passes on plate with backing 16 min · quiz
4 Open-root technique on plate 18 min · quiz
5 Fill and cap passes 17 min · quiz
6 Vertical fillet welds (3F) 17 min · quiz
7 Vertical groove welds (3G) 17 min · quiz
8 Overhead fillet welds (4F) 17 min · quiz
9 Overhead groove welds (4G) 17 min · quiz
10 Bend test coupons: cutting, preparing and bending 16 min · quiz
11 Weld defects, gouging and repairs 17 min · quiz
12 Capstone: the all-position plate test 17 min · quiz
E Final exam 20 questions

Requirements

Recommended background. You can start any course at any time.