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Center for Curriculum and Transfer Articulation
Basic Welding Metal Sculpture
Course: WLD102

First Term: 2018 Fall
Lec + Lab   3 Credit(s)   6 Period(s)   6 Load  
Course Type: Occupational
Load Formula: T Lab Load

Description: Practical training for welders in artistic welding and metal sculpture with emphasis on oxy-ace welding, arc welding, and metal inert gas (MIG) welding

MCCCD Official Course Competencies
1. Explain safety procedures to follow when working with explosive and combustible substances. (I)
2. Explain and practice safe methods of storing and using acetylene and oxygen cylinders. (II)
3. Identify the functions, distinguishing characteristics, and uses of fittings, hoses, torches, and tips. (III)
4. Adjust the torch flame for various welding effects. (IV)
5. Explain basic points of welding, such as angle of torch and rod, speed of travel, volume of heat, and distance of cone from puddle. (V)
6. Describe various types of joints, and explain the uses of each type. (VI)
7. Explain and practice the process of brazing. (VII)
8. Define basic principles of arc welding, and explain the types of beads, electrodes, metal preparation, and welding techniques used in arc welding. (VIII, IX, X, XI, XII, XIII)
9. Identify and explain the function of equipment used in MIG welding. (XIV)
10. List and explain the steps involved in the process of MIG welding. (XV)
11. Identify the properties and uses of various metals used in MIG welding. (XVI)
12. Lay out patterns and designs for welded sculpture. (XVII)
13. Fabricate and critique original welded sculpture. (XVIII)
MCCCD Official Course Outline
I. Oxy-Ace Welding Safety
   A. Clothing
      1. Gloves
      2. Goggles
      3. Boots
      4. Long-sleeve shirt
      5. Cotton -no nylon
   B. Acetylene
      1. Man-made
      2. Explosive
      3. Low ignition
      4. Toxic
      5. Unstable
   C. Oxygen
      1. High pressure
      2. Odorless
      3. Supports combustion
      4. Extracted from air
II. Cylinders (Oxy-Ace)
   A. Storage
      1. Oxygen separate from acetylene
      2. Protective caps
      3. Out of direct rays of sun
      4. Upright position
   B. Usage (Oxy-Ace)
      1. Support in upright position
      2. Acetylene valve open one and one-half turns maximum
      3. Oxygen valve open all the way
      4. Keep away from sparks
      5. Keep reasonable distance from heat
      6. Keep away from flammable materials
III. Regulators, Hoses, Torches, and Tips (Oxy-Ace)
   A. Fittings
      1. Brass
      2. Acetylene-left hand
      3. Oxygen-right hand
      4. Use NO oil
   B. Hoses
      1. Acetylene-red
      2. Oxygen-green
      3. Do not use excessive length
   C. Torches
      1. Injector type
      2. Equal pressure type
   D. Tips
      1. Soft copper
      2. Cleaning-tip cleaner
      3. Seating in torch body
      4. Storage when not in use
IV. Flame (Oxy-Ace)
   A. Adjustments
      1. Carbonizing
      2. Neutral
      3. Oxidizing
      4. Temperature
V. Welding Fundamentals (Oxy-Ace)
   A. Key points
      1. Angle of torch and rod
      2. Speed of travel
      3. Volume of heat
      4. Distance of cone from puddle
VI. Joint Types (Oxy-Ace)
   A. Corner joint
   B. Lap joint
   C. T or fillet joint
   D. Butt joint
   E. Edge joint
      1. Forehand
      2. Backhand
VII. Brazing (Oxy-Ace)
   A. Cleaning
      1. Mechanical
      2. Chemical
   B. Joint Design
      1. Bevels
      2. Root spacing
      3. Overlaps
      4. Clearance
VIII. Arc Welding (ARC)
   A. Trapping
   B. Strike
IX. Four Key Points (Arc)
   A. Arc length
   B. Speed of travel
   C. Volume of heat
   D. Angle of rod
X. Beads (Arc)
   A. Stringer
   B. Weave
   C. Whipping
XI. Electrodes (Arc)
   A. Classification
   B. Heat range
   C. Coating types
   D. Diameter
   E. Storage
   F. Positions
XII. Metal Preparation (Arc)
   A. Size and shape
   B. Types of joints
   C. Set-up
   D. Edge preparations
   E. Metal thickness
XIII. Welding Techniques (Arc)
   A. Whipping (root pass)
   B. Oscillation
   C. Direction of weld
XIV. MIG Welding Equipment (MIG)
   A. DC Generator
   B. Transformer rectifier
   C. Wire feeder
   D. Wire feed gun
   E. Spooled wire
   F. Electrical system
   G. Shielding gas system
   H. Possible water system
XV. Procedures (MIG)
   A. Joint design
   B. Cleaning
   C. Wire diameter
   D. Voltage
   E. Wire speed-amperage
   F. Welding techniques
   G. Gas flow rate-CFH
   H. Nozzle size
   I. Drive roll pressure
XVI. Metals (MIG)
   A. Aluminum
   B. Stainless steel
   C. Carbon steels
XVII. Layout
   A. Patterns
   B. Scratches
   C. Designs
XVIII. Application
   A. Fabrication
   B. Critique
MCCCD Governing Board Approval Date: 12/14/1993

All information published is subject to change without notice. Every effort has been made to ensure the accuracy of information presented, but based on the dynamic nature of the curricular process, course and program information is subject to change in order to reflect the most current information available.