Lesson Plan
Course Title: Advanced Welding
Session Title: Mild Steel Welding ( Flat, Vertical, and Horizontal)
Performance Objective:
Upon completion of this assignment, the student will be able to mig weld using mixed
gas, and weld flat, vertically, and horizontally with mild steel.
Specific Objectives:
1. Develop the ability for gas arc welding
2. Weld flat
3. Weld vertically
4. Weld horizontal
5. Perform lap welds
6. Pass qualifying test
Preparation
TEKS Correlations:
This lesson, as published, correlates to the following TEKS. Any changes/alterations
to the activities may result in the elimination of any or all of the TEKS listed.

Advanced Welding:
130.324(c)(8)(A)(B)(C)
…observe safe operating practices;
…apply safe handling of compressed gases; and
…perform advanced cutting processes according to accepted welding
standards.

130.324(c)(9)(A)(B)
…observe safe operating practices; and
…perform advanced shape cutting processes according to accepted welding
standards.

130.324(c)(10)(A)(B)
…use safe operating practices; and
…demonstrate advanced knowledge of qualified welding positions using
accepted welding standards.

130.324(c)(11)(A)(B)(C)(D)
…use safe operating practices;
…perform fillet welds;
…perform groove welds; and
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…perform welds in all appropriate positions according to accepted welding
standards.

130.324(c)(12)(A)(B)(C)(D)
…use safe operating practices;
…perform fillet welds;
…perform groove welds; and
…perform welds in all appropriate positions according to accepted welding
standards.

130.324(c)(13)(A)(B)(C)(D)(E)
…use safe operating practices;
…perform fillet welds;
…perform groove welds;
…perform welds in all appropriate positions according to accepted welding
standards; and
…perform welds on metals such as carbon steel, stainless steel, pipe, and
aluminum.
Interdisciplinary Correlations:
English:
110.42(6) – Reading/word identification/vocabulary development
 110.42(6)(A)(B)
…expand vocabulary development through wide reading, listening, and
discussing;
…rely on context to determine meanings of words and phrases such as figurative
language, idioms, multiple meaning of words, and technical vocabulary;
Instructor/Trainer
References:
1. Jeffus, Larry; Welding Principles and Applications Third Edition, Delmar Publishers
Inc.ISBN 0-8273-5048-1; Chapter 27.
2. Miller, R.T., Welding Skills Second Edition, American Technical Publishers, Inc.
ISBN 0-8269-3007-7; Chapter 25
3. Gellerman, Mike; Welding Fundamentals; Delmar Publishers ISBN 0-8273-5937-3;
Unit 6
4. American Welding Society
http://www.aws.org/
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Instructional Aids:
1. Mild Steel Welding PowerPoint
2. Rubric for grading mild steel
Materials Needed:
3 x 6 3/8” steel plate
.035 mig wire
Gas 75%-25% (argon, carbon dioxide)
Equipment Needed:
Personal safety equipment
Mig machine
Mig gun
Learner
Knowledge of safety in the welding classroom.
Introduction
Introduction (LSI Quadrant I):
SAY: Mild steel is the easiest metal to gas weld. At the conclusion of this lesson you will
be able to weld flat, vertically, and horizontally.
Outline
Outline (LSI Quadrant II):
I. Set - up
A. Equipment
B. Material needed
C. Coupons (from previous lesson)
II. Weld
Lab 1
Flat Welding
Lab 2
Vertical Welding
Lab 3
Horizontal Welding
Lab 4
Lap Welding
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III. Clean-up and inspection
A. General clean-up
B. Visual inspection
Application
Guided Practice (LSI Quadrant III):
The teacher will demonstrate the different position of the welds in the different
labs. Students will then work in the labs to complete the welds.
Independent Practice (LSI Quadrant III):
Lab 1 – Flat weld
Lab 2 – Vertical weld
Lab 3 – Horizontal weld
Lab 4 – Lap weld
Summary
Review (LSI Quadrants I and IV):
Monitor the students correct their welds as the lesson progresses.
Evaluation
Informal Assessment (LSI Quadrant III):
The assessment will be visual and discussion.
Formal Assessment (LSI Quadrant III, IV):
The students will weld coupons and will be graded using a rubric. The rubric will
include uniformed welds, not undercuts, and a good cosmetic look to the coupon.
The rubric is similar to the one used in VICA competition.
Extension/Enrichment (LSI Quadrant IV):
The students that show mastery of the skill will weld personal projects or outside
projects.
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RUBRIC FOR GRADING MILD STEEL
Grading for Flat mild steel weld
Grading for Horizontal steel weld
Uniformed
Uniformed
No under
welds
No under
welds
Cosmetic
Cosmetic
Total Score
Total Score
5-best score for each
1-lowest score for each
15-Perfect score
Grading for vertical mild steel weld
5-best score for each
1-lowest score for each
15-Perfesct score
Grading for lap weld for mild steel
Uniformed
Uniformed
No under
welds
No under
welds
Cosmetic
Cosmetic
Total Score
Total Score
5-best score for each
1-lowest score for each
15-Perfect score
5-best score for each
1-lowest score for each
15-Perfesct score
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