Course Title:

Intermediate Welding Using Multiple Processes

Course Prefix & Number:

WLDG2413

Section Number: 

810

Term Code:

151S

Semester Credit Hours:

4

Lecture Hours:

2

Lab Hours:

6

Course Description (NCTC Catalog):

Basic welding techniques using some of the following processes: Oxy-fuel welding (OFW) and cutting, shielded metal arc welding (SMAW), gas metal arc welding (GMAW), and gas tungsten arc welding (GTAW).

Course Prerequisite(s): Intermediate Welding using Multiple Processes

Course Type:

o - Academic General Education Course (from Academic Course Guide Manual but not in NCTC Core)

o- Academic NCTC Core Curriculum Course

x- WECM Course

Name of Instructor:

Mike Borden

Campus/Office Location:

Bowie

Telephone Number:

940-735-5958

E-mail Address:

mborden@nctc.edu

Name of Chair/Coordinator:

Darrell Smith

Office Location:

CTC2110

Telephone Number:

940-668-7731, x4426

E-mail Address:

ddsmith@nctc.edu

# of Graded Course Elements

Graded Course Elements

Percentage or Points Values

1

Chapter 2

5%

1

Chapter 3

5%

1

Chapter 9

5%

1

Chapter 8

5%

1

Chapter 13

5%

1

Final Chapters 1,3,6,9,8, and 13

25%

1

Chapter 14

5%

1

Chapter 16

5%

1

Chapter 27

5%

1

Chapter 29 and 30

5%

1

Chapter 33

5%

1

Final Exam

25%

Student Learning Outcome

Identify proper safety equipment and tools and identify and select the proper welding process for a given application

Demonstrate skills training using more than one approved welding process

Demonstrate ability to analyze situations and make decisions using skills as taught concerning safety and electrode selections

Select the most economic and practical welding process for the given task

Topic

General Description of Subject Matter

Safety in the Welding Shop

Identify several common causes of accidents. Recognize possible safety hazards in the welding shop or other work environments. Recognize and evaluate potential safety hazards and react appropriately to prevent accidents.

Welding  Joints, Positions, and Symbols

Identify the five basic welding joints. Label the parts or areas of a grooved butt weld and fillet weld. List and describe welding positions. Locate and apply required weld and joint information from an AWS welding symbol.

Shielded Metal Arc Welding

Demonstrate your ability to use the SMAW process to create acceptable welds on all five basic joints in all positions. Describe all types of weld defects and demonstrate your ability to inspect and differentiate between acceptable and un acceptable welds. Successfully pass a safety test as related to arc welding work areas, equipment, clothing tools and correct welding procedures in all positions.

Gas Metal and Flux Cored Arc Welding

Correctly prepare metals for welding. Weld using GMAW, make acceptable welds on all types of joints in all positions using GMAW. Weld using FCAW, make acceptable welds on all types of joints in the flat and horizontal positions using FCAW. Be able to pass a safety test o proper use of GMAW and FCAW processes.

Gas Tungsten Arc Welding

Correctly prepare a tungsten electrode for welding with an ac or dc power source. Correctly prepare metals of welding and create acceptable welds on all types of joints in all positions. Correctly set and adjust the welding current and shielding gas flow rate. Weld different base metals using GTAW process. Identify the potential safety hazards of using the GTAW process in a working environment and describe ways to safely dealing with these hazards.

Oxy-fuel Gas Cutting Equipment and Supplies

Identify the various components of an oxy-fuel gas cutting outfit. Cite the maximum safe working pressure used for acetylene gas. Describe the equipment used to semi automate or fully automate the cutting process.

Oxy-fuel Gas Cutting

Cut base metal using an oxy-acetylene cutting torch. Distinguish between a well cut surface and a poorly cut surface, and be able to adjust where necessary to perform a good cut. Describe the gouging process and state when it is used. Pass a test on safe practices and procedures while oxy-fuel gas cutting or gouging.

Brazing and Braze Welding

Differentiate between brazing and braze welding. Select the proper filler metal and flux for brazing or braze welding to ensure a strong finished joint. List, in the proper order, the procedures for making an acceptable brazed joint.

Production or Metals

Describe and identify several of the modern methods of manufacturing metals. Describe and identify the various semi-finished and finished shapes produced in a rolling mill. Assess the differences in volume, speed of production, and cost of production among several of the metal making methods.

Metal Properties and Identification

List and describe eight physical properties of metal. Find from tables, the tensile strength and yield strength for various plain carbon steels. Determine the structure of steel and various points on the iron carbon diagram. Know how to identify cast iron, plain carbon steel, and alloy steels by making a spark test on a grinder and using comparison charts.

Heat Treatment of Metals

List at least seven reasons for heat treatment. Name the methods used to heat metals for heat treatment. Describe the crystalline structure of steel when it is cooled quickly, slowly, or in different stages.

Define the following terms: annealing, normalizing, tempering, spheroid zing, hardening, and case hardening.

Inspecting and Testing Welds

Make visual inspection of a weld. Perform a properly conducted dye penetrant test on a weld. Make a safe and proper bend test on a groove weld. Describe various non-destructive examination methods and what flaws or defects they identify.

Procedure and Welder Qualifications

List several governmental agencies that use and produce various types of welding codes. Understand and relate the reasons for welding codes and specifications.  Lest the essential and non-essential welding variables. Define “Welding procedure specification” “Welding procedure qualification record” and “welding performance qualification”.

Welding Tests

Each student is required to pass two welding test for each welding process. (Oxy-fuel Welding, Shielded Metal Arc Welding, Gas Metal Arc Welding, Flux Core Arc Welding, and Gas Tungsten Arc Welding Process. The positions required are up to the student to determine. Failure to pass any one of the required ten tests to the visual requirement of American Welding Society will cause the student to fail.

Last day to Withdraw

.For the Spring 2023 semester, the last day to withdraw from a course with a “W” is Monday 04/03/2023.

Student Rights & Responsibilities

NCTC Board policy FLB (Local) Student Rights and Responsibilities states that each student shall be charged with notice and knowledge of the contents and provisions of the rules and regulations concerning student conduct.  These rules and regulations are published in the Student Handbook published in conjunction with the College Catalog. 

Scholastic Integrity

Scholastic dishonesty shall constitute a violation of college rules and regulations and is punishable as prescribed by Board policies. Scholastic dishonesty shall include, but not be limited to cheating on a test, plagiarism, and collusion.  See the Student Handbook for more information.

Disability Services (OSD)

The Office for Students with Disabilities (OSD) provides accommodations for students who have a documented disability. On the Corinth Campus, go to room 170 or call 940-498-6207. On the Gainesville Campus, go to room 110 or call 940-668-4209.  Students on the Bowie, Graham, Flower Mound, and online campuses should call 940-668-4209.

North Central Texas College is on record as being committed to both the spirit and letter of federal equal opportunity legislation, including the Americans with Disabilities Act (ADA) of 1990, ADA Amendments Act of 2009, and Section 504 of the Rehabilitation Act of 1973 (P.L. 93-112).   http://www.nctc.edu/StudentServices/SupportServices/Disabilityservices.aspx

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Tobacco-Free Campus

NCTC restricts the use of all tobacco products including cigarettes, cigars, pipes and smokeless tobacco on campus property.