CAD Mechanical Design 3
Printable Version (pdf)

 

Course Introduction

 

Core Standards of the Course

Strand 1
Students will be able to understand and properly specify the correct type of fasteners.

Standard 1
Define thread terminology.

Standard 2
Identify strengths, weaknesses and differences between different thread forms.

1. Unified
   
2. Acme
   
3. Pipe
   
4. Square
   
5. Buttress
   

Standard 3
Calculate thread pitch.

Standard 4
Develop thread callout notes.

Standard 5
Draw the simplified and schematic thread forms for internal and external type threads.

Standard 6
Specify different types of cap screw and machine screws.

1. Head types
   
2. Hardness
   
3. Finish
   

Standard 7
Identify standard threads sizes and lengths.

Standard 8
Correctly draw, locate, and label fasteners on production, assembly drawings, and parts lists.

Strand 2
Students will be able to understand and identify basic welding symbols.

Standard 1
Understand, identify and draw basic weld symbols.

Standard 2
Understand and create detail drawings for welded part.

Standard 3
Understand and specify welds on drawings.

1. Type
   
2. Size and length
   
3. Finish & contour
   
4. Field welds
   
5. Basic welding processes
   

Strand 3
Students will be able to develop and correctly place sectional views and auxiliary views.

Standard 1
Be familiar with and appropriately use section views.

1. Full
   
2. Half
   
3. Offset
   
4. Broken out
   
5. Removed
   
6. Revolved
   

Standard 2
Section lines are evenly spaced and drawn at a 45-degree angle unless a more appropriate angle is justified.

Standard 3
Cutting plane lines, section lines, and break lines are drawn according to the alphabet of lines.

Standard 4
Visible edges, hidden lines, and contours behind the cutting plane are correctly shown.

Strand 4
Students will be able to demonstrate the ability to create a flat pattern development.

Standard 1
Understand and calculate bend allowance.

Standard 2
Create a flat pattern development of a simple part to be made from sheet metal.

Strand 5
Students will be able to understand and demonstrate the basics of Geometric Dimensioning and Tolerancing (GD&T).

Standard 1
Know basic GD&T terminology.

Standard 2
Understand, identify, and draw basic GD&T symbols.

Standard 3
Specify position and geometric tolerances.

Standard 4
Draw and place feature control symbols and datum references on a drawing.

1. Specify form tolerances, e.g. straightness, flatness, roundness (circularity), cylindricity, profile of a line, and profile of surface.
   
2. Specify orientation tolerances, e.g., angularity, parallelism, perpendicularity, and concentricity.
   
3. Specify positional tolerances in reference to maximum material condition (MMC), regardless of feature size (RFS), and least material condition (LMC).
   

Standard 5
Specify and apply the tolerance symbols, tolerances and datums on various drawings.

Strand 6
Students will create assembly and working drawings.

Standard 1
Develop a set of working drawings of six or more parts, of industry assembled parts.

1. Draw all necessary views of each part.
   
2. Draw only one part per sheet.
   
3. Dimension parts as per ANSI Y14.5 standards.
   
4. Apply appropriate tolerances.
   
5. Apply necessary notes, material specifications, symbols, and other data.
   
6. Complete a parts list of the parts, which include, parts number, manufacturer's name, manufacturer's stock number, material specs, quantity of each part, and notes for assembly.
   
7. Complete an assembly drawing showing the relationship the parts to each other.
   
8. Include title block and border on each production drawing sheet.
   

Performance Skills

1. Create and maintain a portfolio of exemplary work.
   
2. Demonstrate practice of the Technology & Engineering Professional Workplace Skills.
   
3. Participate in a significant activity that provides each student with an opportunity to render service to others, employ leadership skills, or demonstrate skills they have learned through this course, preferably through participation in a Career & Technical Student Organization (CTSO) such as the Technology Student Association (TSA).
   

---

http://www.uen.org - in partnership with Utah State Board of Education (USBE) and Utah System of Higher Education (USHE).  Send questions or comments to USBE Specialist - Doug  Livingston and see the CTE/Engineering & Technology website. For general questions about Utah's Core Standards contact the Director - THALEA  LONGHURST.

These materials have been produced by and for the teachers of the State of Utah. Copies of these materials may be freely reproduced for teacher and classroom use. When distributing these materials, credit should be given to Utah State Board of Education. These materials may not be published, in whole or part, or in any other format, without the written permission of the Utah State Board of Education, 250 East 500 South, PO Box 144200, Salt Lake City, Utah 84114-4200.