WELD 1050 Syllabus

Subject Code

WELD

Course Number

1050

Course Title

Horizontal Shielded Metal Arc Welding

Prerequisites

Corequisites

WELD 1040

Terms Offered

Offered Spring

Credit Hours

(2-5-4)

Course Description

This course introduces the major theory, safety practices, and techniques required for shielded metal arc welding (SMAW) in the horizontal position. Qualification tests, horizontal position, are used in the evaluation of student progress toward making industrial standard welds. Topics include horizontal SMAW safety and health practices, selection and applications of electrodes, selection and applications for horizontal SMAW, horizontal SMAW joints, and horizontal SMAW to specification. Students must pay a $20 supply fee when registering for this course.

Course Outcomes

Horizontal SMAW Safety and Health Practices
Order             Description
   1                  Operate the AC and DC welding generators, AC transformers, and AC/DC rectifier welding
                       machines in a safe manner.
   2                  Define safety procedures when dealing with high voltage which is capable of inflicting severe and
                       often potential fatal injuries.
   3                  Recognize when the machine is properly in order to insure that the two never make contact.
   4                  Handle positive and negative circuits properly in order to insure that the two never make contact.
   5                  Identify the possible dangers of looking directly or indirectly at the welding rays.
   6                  Select the proper safety clothing for any welding job (leather jacket, head cap, leather, steel toed
                       boot, etc.)

Selection and Application for Horizontal SMAW
Order             Description
   1                  Select and remove all loose scale and rust from the weld area.
   2                  Select a fast freeze electrode and set the power supply output to that used for horizontal welding.
   3                  Hold the electrode jointed upward at 5 to 10 degree angle when using.
   4                  Demonstrate ability to determine the most efficient electrodes.

 

Horizontal SMAW Joints
Order             Description
   1                  Select ¼ inch plate to forma lap joint, angle the electrode to 45 degrees and run single bead along
                       the edge using a slight weaving motion.
   2                  Select and tack two ¼ inch plates to form a T joint.
   3                  Form a regular single fillet but add more passes to meet the thickness specifications.
   4                  Form a regular single fillet but add more passes to meet the thickness specifications.
   5                  Obtain two pieces of ¼ inch steel plate and bevel the edge to 60 degrees.
   6                  Tack the two plates together to form a vee butt joint with 1/16 inch root opening.
   7                  Deposit the first bead deep in the root of the joint after removing slag and lay the second bead,
                       then follow with a third bead.
   8                  Determine the number of passes necessary on the joint needed to give the strength equal to the
                       thickness of the metal.

 

Horizontal SMAW to Specification
Order             Description
   1                  Describe the purposes and meaning of welding specifications. Complete horizontal welds to comply
                       with the American society of Mechanical Engineers general code.