Maricopa Community Colleges  SML111   19952-20046 
Official Course Description: MCCCD Approval: 11/22/94
SML111 19952-20046 LEC 5 Credit(s) 5 Period(s)
Sheet Metal I
History and background of the sheet metal apprentice. Basics of drafting, layout and pattern development used in the sheet metal trade. Prerequisites: Indentured Status with the Phoenix Sheet Metal Joint Apprenticeship and Training Committee or permission of the Apprenticeship Coordinator.
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MCCCD Official Course Competencies:
 
SML111   19952-20046 Sheet Metal I
1. Describe the opportunities, obligations and general provisions of an apprentice agreement in the sheet metal industries. (I a,b)
2. Explain the development of the sheet metal industry from medieval time through Colonial America to the present. (I c,d)
3. Use common drafting equipment to draft patterns on paper. (II a,b)
4. Demonstrate proper lettering techniques. (II c)
5. Draft specific geometric construction used in sheet metal pattern drafting. (II d)
6. Layout the pattern for a rectangular pan or box. (II e,f)
7. Demonstrate the basic techniques for marking patterns on metal. (II g)
8. Layout the patterns for simple duct work and duct fittings. (II h,i)
9. Layout the patterns for a standard offset and for a transitional cheek Soffset. (II j)
10. Define the following terms: pattern drafting, triangulation , parallel lines, radial lines. (II k)
11. Read and interpret plan and elevation views. (II L,m)
12. Identify true length lines on plan and elevation views. (II L,m)
13. Locate points on a pattern using true length lines. (II m)
14. Layout patterns by triangulation. (II n)
15. Layout simple parallel line development patterns. (II o)
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MCCCD Official Course Outline:
 
SML111   19952-20046 Sheet Metal I
    I. Introduction to Apprenticeship
        A. Opportunities and Obligations
          1. Occupational Stability
          2. Opportunity for Advancement
          3. Earning Power
          4. Job Security
          5. Job Satisfaction
        B. Sheet Metal Industries
          1. Heating
          2. Air Conditioning
        C. Historical Background
          1. Ancient Times
          2. Middle Ages
          3. America
          4. Development of Apprenticeship
        D. Organizations and the Apprentice
          1. Federal
          2. State
          3. Local
      II. Basic Drafting
          A. Introduction
            1. Equipment
            2. Materials
            3. Layout, Pattern Development
          B. Lines
            1. Cleanliness
            2. Horizontal, Vertical, Oblique
            3. Extension, Center, Hidden, Projection
            4. Radius, Angular Measurement
          C. Lettering
            1. Single Stroke Gothic
            2. Pencils
            3. Techniques
            4. Inclined Upper and Lower Case
          D. Working with Lines
            1. Triangulation and Triangulating
            2. Erecting a Perpendicular
            3. Copying an Angle
            4. Bisecting an Angle
            5. Triangles
            6. Circle
            7. 3-4-5 Triangle
            8. Polygon
            9. Ellipse
          E. Basic Layout
            1. Terminology
            2. Pattern for a Round Pipe
            3. Pattern for a Square or Rectangular Pipe
          F. Layout on Metal
            1. Tools
            2. Metal Layout Steps
          G. Making Patterns
            1. Clarity
            2. Marking Patterns Steps
          H. Duct Layout
            1. Construction
            2. Rectangular Duct Elbows
            3. Square Throat Elbows
          I. Duct Elbows Other Than 90
            1. Determine Angle
            2. Transitional Cheek Angle
          J. Ducts "S" Ogee Offsets
            1. Patterns for a Standard "S" Offsets
            2. Transitional Cheek S Offset
          K. Principles of Pattern Development
            1. Basics
            2. Definition
            3. Types
          L. Introduction to Triangulation
            1. Definition
            2. Plan Views
            3. Elevation Views
          M. True Lengths
            1. Identify True Lengths
            2. Elevation Views - True Lengths
            3. Finding True Lengths
            4. Eliminating True Length Triangles
            5. Applying True Lengths
          N. Practical Triangulation
            1. Circles
            2. Squares
            3. Curves
            4. Square to Round "Wings"
            5. Layout
          O. Introduction to Parallel Lines
            1. Definition
            2. Steps of Development
            3. Round Pipe
            4. Profiles
            5. Layout
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