50-420-714Engineering Drawings for Machine Trades Apprentices
Course Information
Description
This course will acquaint the apprentice with the interpretation of engineering prints and other technical and manufacturing documentation. The primary focus of the course will be on the part of manufacturing most closely related to machining and tooling. Background information is provided relative to the process used to create and finish the product or piece part on the prints being examined.
Total Credits
1
Course Competencies
  1. Interpret imperial and metric print information
    Assessment Strategies
    Demonstration
    Criteria
    describe the basic concept of base 10 numbering that constitutes the metric system compared to standard numbering
    make conversions from standard to metric, and metric to standard system using charts or tables
    make conversions from standard to metric, and metric to standard system without charts or tables using conversion formulas
    identify features from standard and metric orthographic views.
    describe features found on metric system drawings compared to standard system drawings
    match standard and metric drawing symbols to representation on print

  2. Draw an orthographic projection
    Assessment Strategies
    Drawing/Illustration
    Criteria
    explain the unique features of an orthographic projection
    select prints that are 3rd angle from those that are 1st angle
    review the 6 surfaces in an orthographic projection
    draw various line types and weights to represent specific information
    analyze an object to determine the required views for an orthographic projection
    sketch using both 1st and 3rd angle projection views

  3. Dimension a drawing
    Assessment Strategies
    Demonstration
    Criteria
    add dimensions to the drawing or sketch of a simple part
    scale and clean up the sketch
    draw line leaders of the correct weight
    place dimension lines according to convention
    add needed measurements and remove unnecessary dimensions
    examine for all normal, inclined, and oblique surfaces
    examine for all flat, curved, or circular surfaces
    examine for hidden lines, surfaces or holes
    draw in a professional manner

  4. Interpret section views
    Assessment Strategies
    Critique
    Criteria
    explain the unique features of section views
    review the use of cutting lines to reveal certain section views
    analyze an object and visualize the view that the section view is depicting
    explain how to identify different surfaces depicted in a section view
    calculate sub-part sizes and dimensions in a section view
    relate a section view to the total part

  5. Interpret surface texture symbols
    Assessment Strategies
    Drawing/Illustration
    Criteria
    describe surface measuring techniques
    describe the various types of surface textures
    identify surface texture symbols
    define and use surface texture terminology
    break down the steps required to create a specific texture
    correlate the manufacturing process to lay pattern
    explain the individual parts of surface texture symbols

  6. Interpret threaded screw component specifications
    Assessment Strategies
    Demonstration
    Criteria
    explain the three methods of representing threads on an engineering drawing
    identify washer styles for various applications
    identify graded steel fasteners by the head markings
    describe fastener plating and finish specifications commonly depicted on an engineering drawing.
    relate machining operations such as for chamfers and necks to threaded components
    use screw thread terminology
    interpret screw thread specifications
    interpret screw thread representations
    use screw pipe thread terminology
    interpret pipe thread specifications
    interpret pipe thread representations

  7. Summarize information from an assembly drawing
    Assessment Strategies
    Demonstration
    Criteria
    interpret an assembly drawing for information required by the trade
    locate specific information on the assembly drawing
    describe piece orientation from the drawing
    use correct nomenclature
    identify drawing parts