Technical Terms Chapter 12 SMAW: Flat Welding Position After studying this chapter, you will be able to: Learning Objectives arc blow arc length backhand welding backward arc blow chipping chipping goggles closed arc drag angle drag welding fast-freeze electrode forehand welding forward arc blow keyhole layer magnetic fi eld open arc oval-shaped ripples overlap phosgene gas porosity push angle reading the weld bead restarting the arc root pass running a weld bead slag inclusions spatter tack weld travel angle undercut under load whip and pause technique work angle Click on the activity icon or visit www.g-wlearning.com/welding/6938 to access online vocabulary activities using key terms from the chapter. • Identify the safety rules required for arc welding. • Strike an arc. • Explain methods to prevent or reduce arc blow. • Run a weld bead using the correct electrode angles. • Use drag welding techniques. • Clean a weld. • Read a weld bead. • Make a fi llet weld on a lap joint, inside corner, and T-joint in the fl at welding position using shielded metal arc welding. • Make square-, J-, and V-grooved welds on a butt joint in the fl at welding position using shielded metal arc welding. • Identify weld defects. Copyright Goodheart-Willcox Co., Inc. 167