Ag Mechanics Curriculum Project
Arc Welding

Resources:

Teachers:

• Dick Piersma - Hilmar
• Darrell Hirschler - Fresno Central
• Ryan Patterson - Ripon

Texts:

• Lincoln Electric, No Teacher Left Behind; CD Series (see link below)
• Agriculture Mechanics Fundamentals and Applications � 6th Edition, Ray Herren; Thompson-Delmar Learning � Modern Welding, Andrew Althous, Carl Turnquist, William Bowditch, Kevin Bowditch, and Mark Bowditch; Goodheart-Wilcox Company, INC.
• Modern Welding � Instructor Manual, Bowditch, Bowditch, Bowditch; Goodheart-Wilcox Company, INC.
• Modern Welding � Laboratory Manual, Bowditch, Bowditch, Bowditch; Goodheart-Wilcox Company, INC.

Web Sites:

• American Welding Society

• Miller - Video Library

• Lincoln Electric Books, Videos, DVDs, and Design Tools

• Lincoln Welding Curriculum (E-course, PPT)

Other Resources:

Posters from Lincoln Electric.  These and other posters can be ordered from Lincoln (see above) for free.  The full sized posters are excellent for display in your classroom/shop.

• Power Source Poster
• SMAW Poster
• Welding Symbols
• Weld Symbols Poster (See AWS site)
• Parts of a Weld
• Welding Positions

Curriculum:

2300, 2301, 2302, 2303, 2304, 2305, 2306, 2307, 2349

Methods:

• Read the Arc Welding units in the text book(s) you are using.

• Be familiar with all handouts that you plan to use as support materials for this unit.

• Be sure you are comfortable performing any of the skills you will be demonstrating to your class.

Standards:

B1.0 Students understand personal and group safety:

B1.1    Practice the rules for personal and group safety while working in an agricultural mechanics environment.

B1.2    Know the relationship between accepted shop management procedures and a safe working environment.

B5.0 Students understand agricultural cold metal processes:

B5.1    Know how to identify common metals, sizes, and shapes.

B5.3    Know layout skills.

B5.4    Know basic cold metal processes (e.g., shearing, cutting, drilling, threading, bending.).

B8.0 Students understand electric arc welding processes:

B8.1    Know how to select, properly adjust, safely employ, and maintain appropriate welding equipment (e.g., gas metal arc welding, shielded metal arc welding, gas tungsten arc welding).

B8.2    Apply gas metal arc welding, shielded metal arc welding, or flux core arc welding processes to fusion-weld mild steel with appropriate welding electrodes and related equipment.

B8.3    Weld a variety of joints in various positions.

B8.4    Know how to read welding symbols and plans, select electrodes, fit-up joints, and control heat and distortion.

4.0 Technology

Students know how to use contemporary and emerging technological resources in diverse and changing personal, community, and workplace environments:

4.1       Understand past, present, and future technological advances as they relate to a chosen pathway.

4.6       Differentiate among, select, and apply appropriate tools and technology.

5.0 Problem Solving and Critical Thinking

Students understand how to create alternative solutions by using critical and creative thinking skills, such as logical reasoning, analytical thinking, and problem-solving techniques:

5.1       Apply appropriate problem-solving strategies and critical thinking skills to work-related issues and tasks.

5.3       Use critical thinking skills to make informed decisions and solve problems.

Unit Topics:

1. Introduction
2. Safety (Rules-Word) (Safety Test)
3. Terminology
   1. Teacher Reference
   2. Student Reference
4. Equipment & Safety
   1. Topic Objectives: Upon completion of this unit, students will be able to:
      1. Pass a safety test and demonstrate proper use of arc welding equipment.
      2. Be able to identify the components of a welding circuit and their function(s).
   2. Topic Presentation (Student Outline) (PPT) (Teacher's Notes)
5. Striking an Arc Topic
   1. Objectives: Upon completion of this unit, students will be able to:
      1. Strike and maintain an arc correctly.
      2. Select various sizes and types of electrodes and correctly adjust the current setting for each application.
      3. Understand and be able to identify the causes of weld defects.
   2. Topic Presentation (Student Outline)  (PPT) (Teacher's Notes)

Worksheets

Unit Assessment

• Arc and Oxy-Fuel Final Project (Instructions - PDF), (Instructions - CAD)
• Arc Welding Unit Test  (Word)

Skill Assignments / Projects

Objective: Complete a skill assignment that demonstrates the student�s ability to weld correctly.

• Padding a Plate (Instructions - Word)

• Arc Welding Assignment (Arc Weld Assignment-CAD) (Arc Weld Assignment - PDF)

Objective: Construct a project requiring at least three different welds.

• Sawhorse Plans (CAD)
• Sawhorse Plans (PDF)

California Ag Mechanics Curriculum Project