Copyright Goodheart-Willcox Co., Inc. May not be reproduced or posted to a publicly accessible website. 58 Welding Fundamentals Lab Workbook Always wear approved chipping goggles when chipping and wire brushing. CAUTION 10. Place a second 1 1/2″ (40 mm) wide piece as shown in the following illustration. Tack weld the pieces only on the weld side of the joint. 1/4 1 in. mm 1/4 1 6 25 11. After cleaning the tack welds, make the third weld on the weldment as indicated in the drawing for step 10. 12. Repeat steps 5–11, using the other three pieces of metal. Inspection The welds must be made according to the AWS welding symbol. The weld beads must be straight, convex in shape, and have uniformly and evenly spaced ripples. All restarts should be made without low spots.