Gas Tungsten Arc Welding

SYLLABUSGAS TUNGSTEN ARC WELDINGWELD-11752011WESTERN NEBRASKA COMMUNITY COLLEGEDIVISION OF APPLIED TECHNOLOGY

I. CATALOG DESCRIPTION:Weld-1175Gas Tungsten Arc WeldingPrerequisite: NoneThis course provides the student with a thorough technical understanding of gastungsten arc welding, arc characteristics and welding safety. It provides trainingto develop the skill necessary to make quality gas tungsten arc welds on 16 and11 gauge mild steel, .060-inch and .062-inch gauge stainless steel and .125-inchaluminum, using both direct and alternating current. In addition, material ispresented on the weld characteristics of carbon steel, stainless steel andaluminum. Information on pulsed current is included to prepare the student formore detailed applications of pulsed current used in gas tungsten arc weldingpipe.(6/60/90/0/0/10)II.COURSE OBJECTIVES/COMPETENCIES:The student will be able to:A. Acquire AWS QC10 – Entry Level Welder GTAW skills. [GE Goal: 5]B. Employ GTAW safety in the work place using AWS Standard QC11. [GEGoal: 5]C. Set up, adjust and shut down gas tungsten arc welding equipment. [GE Goal:5]D. Produce quality fillet and square groove welds on thin carbon steel, stainlesssteel and aluminum in the flat, horizontal and vertical positions, using the gastungsten arc welding process. [GE Goal: 5]III.INSTRUCTIONAL MATERIALS:A. Required Text:1. Hobart EW369 GTAWB. Hobart media covering related topicsC. Hobart SoftwareD. Written exams and computer generated examsE. Instructor generated handouts

IV.COURSE OUTLINE:GAS TUNGSTEN ARC WELDINGWELD-1175A. Perform safety inspections of equipment and accessoriesB. Make minor external repairs to equipment and accessoriesC. Set up for GTAW operations on carbon steel, aluminum, and stainless steelD. Operate GTAW equipmentE. Make fillet welds, all positions, on carbon steelF. Make groove welds, all positions, on carbon steelG. Make 1F – 2F welds on aluminumH. Make 1G welds on aluminumI. Make 1F – 3F welds on stainless steelJ. Make 1G – 2G welds on stainless steelV. SPECIFIC COURSE REQUIREMENTS:A. Introduction to Gas Tungsten Arc WeldingB. Safety and Health of WeldersC. Preparation for Gas Tungsten Arc WeldingD. Stringer Bead, Flat Position, With and Without Filler Metal (Carbon Steel)E. Fillet Weld Lap Joint, Horizontal Position With and Without Filler Metal(Carbon Steel)F. Welding Characteristics of Carbon SteelG. Fillet Weld, Outside Corner Joint, Flat Position Without and With Filler Metal(Carbon Steel)H. Fillet Weld, Tee Joint Flat, Horizontal, Vertical and Overhead, Uphill TravelWith Filler Metal (Carbon Steel)I. Square Groove Weld, Butt Joint, Flat Position, With Filler Metal (CarbonSteel)J. Square Groove Weld, Butt Joint, Horizontal Position, With Filler Metal(Carbon Steel)2

K. Single Groove Weld, Butt Joint, Guided Bend TestGAS TUNGSTEN ARC WELDINGWELD-1175L. Square Vee Groove Weld, Butt Joint, Vertical Position with Filler Metal(Carbon Steel)M. Stringer Bead, Flat Position, With Filler Metal (Alum)N. The Effect of Equipment Adjustments on the Welding ArcO. Square Groove Weld, Butt Joint, Flat Position, w/ Filler Metal (Alum)P. The Welding Characteristics of AluminumQ. Fillet Weld, Lap Joint, Flat & Horizontal Position, w/ Filler Metal (Alum)R. Fillet Weld, Outside Corner Joint, Flat Position, w/ Filler Metal (Alum)S. Fillet Weld, Tee Joint, Flat and Horizontal Position, (Alum)T. Visual Inspection Test, AluminumU. Fillet Weld, Outside Corner Joint, Vertical Position w/ Filler Metal (Alum)V. Fillet Weld, Tee Joint, Vertical Up, (Alum)W. Single Vee Groove Weld, Butt Joint, Vertical Fixed Position (2G) 3 or 4 Inch,Schedule 40 Steel PipeX. Single Vee Groove Weld, Butt Joint, Horizontal Fixed Position (5G), 3 or 4Inch, Schedule 40 Steel PipeY. Single Vee Groove Weld, Butt Joint 45 Degree Fixed Position (6G) 3 or 4Inch, Schedule 40 Steel PipeZ. Pipe Weld QualityAA.Square Groove Weld, Butt Joint 45 Degree Fixed Position (6G) 3 or 4 Inch,Schedule 10BB.Single Vee Grove Weld, Butt Joint, Horizontal Position, (1G) 6 or 8 Inch,Schedule 60 Steel Pipe, One Quarter Turn Segment WeldingCC.Single Vee Groove Weld, Butt Joint, Horizontal Fixed Position (5G) 6 or 8Inch, Schedule 60 Steel PipeDD.Single Vee Groove Weld, Butt Joint, Vertical Fixed Position (2G), 6 or 8 Inch,Schedule 60 Steel Pipe3

GAS TUNGSTEN ARC WELDINGWELD-1175EE.Single Vee Groove Weld, Butt Joint, 45 Degree Fixed Position (6G) 6 or 8Inch, Schedule 60 Steel PipeFF.Single Vee Groove Weld, Butt Joint, 45 Degree Fixed Position (6G) withpulsed CurrentVI.METHOD OF PRESENTATION:A. Audio/Visual MediaB. Student workbooksC. Instructor demonstrations and individualized instructionD. Power Point presentationsVII.METHOD OF EVALUATION:A. Grade: The academic grade in the course will be based on homeworkassignments, test scores, weld laboratory exercises, and attendance.B. Attendance: Punctuality is expected. Regular attendance is expected.Participation is expected.C. It is the student’s responsibility to acquire assignments and make-up work.Students will not submit work in the event of unexcused absences.D. Textbooks, and required course materials are expected to be in student’spossession at every class.VIII. ACADEMIC INTEGRITY:Academic integrity forms a fundamental bond of trust between colleagues, peers,teachers, and students, and it underlies all genuine learning. At WNCC, there isno tolerance for plagiarism or academic dishonesty in any form, includingunacknowledged “borrowing” of proprietary material, copying answers or papers,using crib sheets, unauthorized help during exams, altering tests, or passing offsomeone else’s work as one’s own.A breach of ethics or act of dishonesty can result in: failure of a paper or exam within a course (instructor level) failure of an entire course (institutional level) suspension or expulsion from the college (institutional level)IX.EQUAL ACCESS STATEMENT:Western Nebraska Community College seeks to make all programs and services,including electronic and information technology, accessible to people withdisabilities. In this spirit, and in accordance with the provisions of Sections 5044

GAS TUNGSTEN ARC WELDINGWELD-1175and 508 of the Rehabilitation Act and the Americans with Disabilities Act (ADA),the College provides students, faculty, staff, and visitors with reasonableaccommodations to ensure equal access to the programs and activities of theCollege. For assistance or further information, students with disabilities shouldcontact the WNCC Disability Services Officer, Norman Stephenson, at308.635.6050 or stephens@wncc.edu. Helpful information may also be found inthe “Disability Services Transition Guide” on the WNCC web-site under DisabilityServices.(4-12-11) 4-26-125