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Syllabus

Gas Tungsten Arc Welding
WE112

YEAR:

2023-2024

CREDIT HOURS:

3.00

PREREQUISITES:

None

COREQUISITES:

None

COURSE NOTES:

None

CATALOG COURSE DESCRIPTION:

Through classroom and lab/shop activities; theory associated with the handling, preparation and process for common production base metals, GTAW electrode and filler metal classifications relative to base metals and joint criteria; proper electrode and filler metal selection and use based on metal types and thicknesses; safe and correct set up of the GTAW workstation; welding on carbon steel, aluminum and stainless steel base metals covering various weld joints in the flat (1F & 1G) and horizontal (2F & 2G).

HutchCC INSTITUTION-WIDE OUTCOMES:

  1. Demonstrate the ability to think critically and make reasonable judgments by acquiring, analyzing, combining, and evaluating information.
  2. Demonstrate the skills necessary to access and manipulate information through various technological and traditional methods.
  3. Demonstrate effective communication through reading, writing, listening, and speaking.
  4. Demonstrate effective interpersonal and collaborative skills.
  5. Demonstrate effective quantitative-reasoning and computational skills.

AREA OR PROGRAM OUTCOMES

  1. Demonstrate the safe, effective and efficient set up of welding and cutting process to meet industry standards.
  2. Demonstrate work ethics including collaboration and communication skills.
  3. Produce and evaluate quality welds/cuts to meet or exceed industry standards.
  4. Read and accurately interpret blueprints/welding symbols.
  5. Demonstrate the accurate application of layout tools, mathematics, and measuring devices to complete assignments.
  6. Choose and apply appropriate manufacturing processes in the completion of projects.
  7. Relate theory-based welding principles to industry-based welding.

COURSE OUTCOMES AND COMPETENCIES:

  1. Explain the Gas Tungsten Arc Welding process (GTAW).
    1. Identify the advantages and disadvantages of the GTAW process.
    2. Describe the direction of electron flow in an electrical welding circuit.
    3. Differentiate between Direct Current Electrode Negative (DCEN), Direct Current Electrode Positive (DCEN) and Alternating Current (AC) effect weld penetration, finished weld bead shape and overall performance of the weld.
    4. Explain the differences between constant current and constant voltage type welding power sources and identify the common welding processes associated with the use of each type.
    5. Identify and/or list the required components needed to perform the GTAW process, including personal protective equipment, machine components and peripheral equipment requirements.
    6. List electrical safety requirements needed for safe operation of the GTAW process in the weld shop or field.
  2. Relate Gas Tungsten Arc Welding Electrode and filler metal classifications with base metals and joint criteria.
    1. Explain the AWS electrode nomenclature for GTAW electrodes and how it applies to a given material, transformer vs inverter design or polarity requirements.
    2. Explain the AWS nomenclature for GTAW filler materials and how it applies to a given material specification.
    3. Determine the proper electrode/s that could be used for a given joint based on the material provided and position of weld.
    4. Evaluate provided welding scenarios to justify a recommendation for or against the use of the GTAW process, and type of electrode and size of filler metal that would best be suited.
  3. Demonstrate the safe and correct set up of the GTAW workstation.
    1. Demonstrate electrical safety requirements needed for safe operation of the GTAW process in the weld shop or field.
    2. Demonstrate proper pre-use inspection of equipment and work area for potential hazards/safety issues, including personal protective equipment, machine components and peripheral equipment requirements.
    3. Troubleshoot and demonstrate basic maintenance required for the GTAW process including, replacing hoses on a water cooled torch, replacement of an air cooled torch, crimping or soldering of cable lugs, and quick style machine connectors.
    4. Demonstrate the proper use of personal protective equipment as needed for the welding environment and the task being performed.
    5. Demonstrate proper high pressure cylinder handling for changing or handling cylinders, start up and shut down procedures used with high pressure shielding gas cylinders and gas manifolds.
    6. Demonstrate safe setup of work area including, proper placement of workpiece connection, storage of extra filler metal, placement of peripheral equipment, and prevention of accidental grounding of GTAW torch.
  4. Demonstrate proper electrode and filler metal selection and use based on metal types and thicknesses.
    1. Demonstrate proper method for preparing tungsten for use on steel, stainless steel, and aluminum base materials.
    2. Select the proper form of tungsten or alloyed tungsten relative to base metal presented.
    3. Select appropriate diameter of tungsten and filler metal to match material thickness and required amperage range to perform weld.
    4. Demonstrate an understanding of compatible and incompatible base metals and filler metals.
    5. Demonstrate the correct method to trim and re-sharpen contaminated tungsten electrodes.
  5. Conduct visual inspection of GTAW welds.
    1. Identify common visual discontinuities and defects on welds.
    2. Determine causes of discontinuities and defects of welds and take proper action to correct discontinuities. Inspect welds for pass/fail ratings according to industry standards.
    3. Use appropriate tools for inspection.
  6. Demonstrate an 8” long autogenous fillet weld in the 2F position on a lap joint.
    1. Use GTAW equipment appropriately.
    2. Use the proper setup procedures.
    3. Use the proper safety procedures and PPE.
  7. Demonstrate an 8” long autogenous fillet weld in the 1F position on the outside of a corner joint using carbon steel sheet metal.
    1. Use GTAW equipment appropriately.
    2. Use the proper setup procedures.
    3. Use the proper safety procedures and PPE.
  8. Demonstrate surfacing welds to create a pad of beads in the flat position.
    1. Use GTAW equipment appropriately.
    2. Use the proper setup procedures.
    3. Use the proper safety procedures and PPE.
    4. Maintain proper material cleanliness to prevent porosity in subsequent welds.
  9. Demonstrate surfacing welds to create a pad of beads in the horizontal position.
    1. Use GTAW equipment appropriately.
    2. Use the proper setup procedures.
    3. Use the proper safety procedures and PPE.
    4. Maintain proper material cleanliness to prevent porosity in subsequent welds.
  10. Demonstrate an 8” long single pass fillet weld in the 2F position on a lap joint using 1/16” or 3/32” diameter ER70S-X filler material on using carbon steel sheet metal.
    1. Use GTAW equipment appropriately.
    2. Use the proper setup procedures.
    3. Use the proper safety procedures and PPE.
  11. Demonstrate an 8” long single pass fillet weld in the 2F position on one side of a T- joint that exhibits no suck-back or melt-thru on the backside of the joint using carbon steel sheet metal.
    1. Use GTAW equipment appropriately.
    2. Use the proper setup procedures.
    3. Use the proper safety procedures and PPE.
  12. Demonstrate an 8” long single pass fillet weld in the 1F position on the outside of a corner joint that exhibits none or consistent melt-thru on the backside of the joint using carbon steel sheet metal.
    1. Use GTAW equipment appropriately.
    2. Use the proper setup procedures.
    3. Use the proper safety procedures and PPE.
  13. Demonstrate a carbon steel tube to sheet metal fillet weld in the 2F position using tubing under 3 inches in diameter and wall thickness under 1/8”/10ga.
    1. Use GTAW equipment appropriately.
    2. Use the proper setup procedures.
    3. Use the proper safety procedures and PPE.
  14. Demonstrate an 8” long single pass fillet weld in the 2F position on a lap joint, on aluminum sheet metal.
    1. Use GTAW equipment appropriately.
    2. Use the proper setup procedures.
    3. Use the proper safety procedures and PPE.
  15. Demonstrate an 8” long single pass fillet weld in the 2F position on a T- joint, on aluminum sheet metal.
    1. Use GTAW equipment appropriately.
    2. Use the proper setup procedures.
    3. Use the proper safety procedures and PPE.
  16. Demonstrate an 8” long single pass fillet weld in the 1F position on the outside of a corner joint, on aluminum sheet metal.
    1. Use GTAW equipment appropriately.
    2. Use the proper setup procedures.
    3. Use the proper safety procedures and PPE.
  17. Demonstrate an aluminum tube to sheet metal fillet weld in the 2F position using tubing under 3 inches in diameter.
    1. Use GTAW equipment appropriately.
    2. Use the proper setup procedures.
    3. Use the proper safety procedures and PPE.
  18. Demonstrate an 8” long single pass fillet weld in the 2F position on a lap joint, on stainless steel sheet metal.
    1. Use GTAW equipment appropriately.
    2. Use the proper setup procedures.
    3. Use the proper safety procedures and PPE.
  19. Demonstrate an 8” long single pass fillet weld in the 2F position on a T- joint, on stainless steel sheet metal.
    1. Use GTAW equipment appropriately.
    2. Use the proper setup procedures.
    3. Use the proper safety procedures and PPE.
  20. Demonstrate an 8” long single pass fillet weld in the 1F position on the outside of a corner joint, on stainless steel sheet metal.
    1. Use GTAW equipment appropriately.
    2. Use the proper setup procedures.
    3. Use the proper safety procedures and PPE
  21. Demonstrate a stainless-steel tube to sheet metal fillet weld in the 2F position using tubing under 3 inches in diameter.
    1. Use GTAW equipment appropriately.
    2. Use the proper setup procedures.
    3. Use the proper safety procedures and PPE.

COURSE ASSESSMENT AND EVALUATION:

Lab based welding assignments account for the minimum amount of the final grade as follows: 25% = Welding assignments not associated with multi-pass groove welds 25% = Multi-pass groove welds Multi-pass groove welds are graded according to applicable welding codes PASS/FAIL criteria. Other welds may be graded on a points, percentage, A-F, or PASS/FAIL based system as designated in the instructor sheet.

ACCOMMODATIONS STATEMENT:

Any student who has a documented disability and wishes to access academic accommodations (per the 1973 Rehabilitation Act and Americans with Disability Act) must contact the HCC Coordinator of Disability Services, at 620-665-3554, or the Student Success Center, Parker Student Union. The student must have appropriate documentation on file before accommodations can be provided.

ACADEMIC HONESTY:

Education requires integrity and respect for HutchCC's institutional values. HutchCC students are required to maintain honesty through a "responsible acquisition, discovery, and application of knowledge" in all academic pursuits. Preserving and upholding academic honesty is the responsibility of Hut chCC students, faculty, administrators and staff.

I. Student Responsibilities

All HutchCC students are required to:

  • Submit all work in all courses without cheating, fabrication, plagiarism, dissimulation, forgery, sabotage, or academic dishonesty as defined below.
  • Provide all academic records such as transcripts and test scores that are free of forgery.
  • Refrain from participating in the academic dishonesty of any person.
  • Use only authorized notes and student aids.
  • Use technology appropriately, including refraining from submitting AI (Artificial Intelligence)-generated work without express written consent from your instructor.
  • Protect the security of passwords/login/privacy/electronic files, and maintain sole individual access for any online course information.

II. Definition of Academic Dishonesty

  • Academic dishonesty is any intentional act, or attempted act, of cheating, fabrication, plagiarism, dissimulation, forgery, or sabotage in academic work.
  • Cheating includes using unauthorized materials of any kind, whether hard copies, online, or electronic, such as unapproved study aids in any academic work, copying another student's work, using an unauthorized "cheat sheet" or device, or purchasing or acquiring an essay online or from another student.
  • Fabrica tion is the invention or falsification of any information or citation in any academic work, such as making up a source, providing an incorrect citation, or misquoting a source.
  • Plagiarism is the representation of words, ideas and other works that are not the student's own as being original to the student. A no n-inclusive list of examples includes work completed by someone else, work generated by an external entity (such as AI), omitting a citation for work used from another source, or borrowing the sequence of ideas, arrangement of material, and/or pattern of thought of work not produced by the student, even though it may be expressed in the student's own words.
  • Dissimulation is the obscuring of a student's own actions with the intention of deceiving others in any academic work, such as fabricating excuses for absences or missed assignments, or feigning attendance.
  • Forgery of academic documents is the unauthorized altering, falsification, misrepresentation, or construction of any academic document, such as changing transcripts, changing grades on papers or on exams which have been returned, forging signatures, manipulating a digital file of academic work, or plagiarizing a translation.
  • Sabotage is any obstruction or attempted obstruction of the academic work of another student, such as impersonating another student, stealing or ruining another student's academic work.
  • Aiding and abetting academic dishonesty is considered as knowingly facilitating any act defined above.
  • Academic honesty violations can also include the omission or falsification of any information on an application for any HutchCC academic program.

III. Sanctions for Academic Dishonesty

Students who violate the Academic Honesty Policy may be subject to academic or administrative consequences.

Instructor Sanctions for Violation:

Students suspected of violating the Academic Honesty Policy may be charged in writing by their instructor and any of the following may apply:

  • Assign Avoiding Plagiarism Bridge Module
  • Receiving written warning that could lead to more severe sanction if a second offense occurs
  • Revising the assignment/work in question for partial credit
  • Voiding work in question without opportunity for make-up
  • Reducing the grade for work in question
  • Lowering the final course grade
  • Failing the work in question

Institutional Sanctions for Violation:

Students charged with academic dishonesty, particularly in instances of repeated violations, may further be subjected to an investigation and any of the following may apply:

  • Instructor recommendation to the Vice President of Academic Affairs (VPAA) to dismiss the student from the course in which the dishonesty occurs
  • Instructor recommendation to the VPAA to dismiss student from the course in which the dishonesty occurs with a grade of 'F." Student will not be allowed to take a 'W' for the course
  • Instructor recommendation to the VPAA that the student be suspended and/or dismissed from the program
  • Student barred from course/program for a set period of time or permanently
  • May be recommended by the instructor (after documented repeated offenses) to the VP AA that the student be placed on probation, suspended and/or dismissed from the institution.

IV. Procedure

  • Instructor will communicate in writing via the student's HutchCC email account and/or LearningZone email account to the student suspected of violating the Academic Honesty Policy.  That communication may include sanction(s). Department Chair will notify the student's academic advisor upon receipt of the Academic Honesty Violation Form.
  • For each violation, the instructor will submit a completed Academic Honesty Violation Form to the Department Chair. Department Chair will notify the student's academic advisor upon receipt of the Academic Honesty Violation form.
  • Should the instructor choose to pursue institutional sanctions, the instruct or shall notify the student in writing via the student's HutchCC email account.  Instructor shall also submit a completed Academic Honesty Violation Form and all prior completed forms regarding said student to the Department Chair and the office of the VPAA with recommendation to proceed with specific Institutional Sanctions. Department Chair will notify the student's academic advisor upon receipt of the Academic Honesty Violation Form.
  • The decision of the VPAA on Institutional Sanction is final. The VPAA will notify the student's academic advisor of any institutional sanctions.

V. Due Process Rights

Students charged with violations of academic honesty have the right of appeal and are assured of due process through the Academic Honesty Appeal process.

Academic Honesty Appeal Process

I. Due Process Rights: Students charged with violations of academic honesty have the right of appeal and are assured of due process through the Academic Honesty Appeal process.

  • If an instructor has recommended course or program dismissal, the student may continue in coursework (provi ding there are no threatening or security behavioral issues) until appeal processes are concluded. However, if an issue has been documented at a partnership location (e.g., clinical sites, secondary institutions, correctional or military facilities), then the student is no longer eligible to continue participation in internships, apprenticeships, and/or clinical-based practice. For clinical sites, this sanction is immediate.

II. Process

If the student disagrees with the charge of a violation of academic honesty, the student has the right to due process as described in the Academic Honesty Appeal process below:

  • If the matter is not resolved upon communicating with the instructor about the violation, the student shall, within five business days of the issuance of the written notice of violation, submit a completed Academic Honesty Appeal Form and supporting documentation to the appropriate department chairperson to initiate an Academic Honesty Appeal.
  • Within two business days of receiving the student's completed Academic Honesty Appeal Form, the Department Chair and VPAA will review and the VPAA will render a decision.
  • Within two business days, a response will be sent to the student's HutchCC email address. The VPAA's decision is final.

INCOMPLETE GRADE:

Instructors may give a student a grade of Incomplete (I) under the following conditions:

  1. The student must initiate the request prior to the time final course grades are submitted to Records.
  2. The request must be made because of an emergency, illness or otherwise unavoidable life-event.
  3. The instructor must agree to the request before a grade of Incomplete can be submitted.
  4. A written contract between the instructor and student, signed by both, will document the work required and date needed to complete course work.
  5. If a student does not complete the course requirements within the time frame established by the instructor, a grade of "F" will be recorded on the student's transcript at the end of the next semester.

HLC ACCREDITATION:

Hutchinson Community College is accredited by the Higher Learning Commission (HLC). The Higher Learning Commission is one of six regional institutional accreditors recognized by the US Department of Education and the Council on Higher Education Accreditation (CHEA).

Last Revised: 03/30/2023