Mar 28, 2024  
Course/Program Inventory 
    
Course/Program Inventory

CAD 3050 - Mechanical Design I



Clock Hours: 426

Delivery Mode
on-ground

Prerequisites: Detail Drafter Certificate (864 Hours)

Industry Certifications Elective - AutoDesk Certified Professional, Certified Solidworks Associate, Certified Solidworks Professional, ADDA Certified Drafter

Course Description:
Coverage of this unit of instruction is intended to teach the student about manufacturing processes, materials and their properties, tools, fabrication techniques, standardization, planning, control, precision measurement and the methodology associated with the design process.

The student will also gain a thorough understanding of screw thread forms, specifications, terms, applications, proportions, standards, tapping and other hole preparation, methods of representation, methods of notation, and dimensioning. Standardized fastening devices including bolts, washers, nuts, set-screws, self-tapping screws, rivets, keys and pins as well as locking devices such as locknuts and lock washers are covered. Helical and flat springs are covered in the Threads and Fasteners unit. Solid Modeling will be used extensively thru this section. Coverage power transmissions will give the student a broad view of the different methods of accomplishing power transfer in mechanical systems. Emphasis will be on understanding the detailed drawings of various types of gears and cams.

Student Learning Outcomes:

  1. Mechanical Theory and Processes
  • Understanding the procedure of the design process.
  • Knowledge of manufacturing processes, tool capabilities and results.
  • Ability to define terms and phrases associated with manufacturing.
  • Understanding of fabrication techniques.
  • Understanding the use of precision measuring methods, tools and gages. 
  • Selection of the proper methods for joining various materials.
  • Finding and selecting standard or stock parts or hardware items.
  • Understanding the proper use of standards, handbooks, and reference sources.
  • Understanding of quality assurance principles and standards.
  • Understanding of welding processes, types of welds and types of joints.  Ability to comprehend and apply welding symbols on drawings.

B.  Threads and Fasteners

  • Describing the various applications of threads.
  • Researching and using thread standards, tables and handbooks.
  • Selection of fasteners for specific applications.
  • Deciding when it is necessary to make detail drawings of screws to be used in assemblies.
  • Defining and understanding thread terms, forms and series.
  • Drawing and dimensioning common types of both internal and external screw threads using the detailed, schematic and simplified methods.
  • Drawing and dimensioning bolts, nuts and washers.
  • Drawing standard screws with various heads and point types.
  • Understanding riveting, types of rivets, and types of rivet heads.
  • Drawing and dimensioning basic riveted joints.
  • Describing springs by type and uses.
  • Drawing and dimensioning springs. 

C.  Solid Modeling/Visualization Basics

  • Describe how solid models are used in engineering, design and drafting.
  • Describe how solid models support the design/drafting process.
  • Build solid models of simple assemblies/structures.
  • Create two-dimensional drawings from the three-dimensional models.

D.  Mechanical Drawings and Specifications

  • Defining and describing the stages of the design process.
  • Comprehension of rough to detailed design sketches.
  • Recording ideas using freehand sketches.
  • Proper selection of the necessary views, sections, auxiliary views, notations and details for inclusion in working drawings.
  • Development of detailed orthographic drawings with all necessary views.
  • Specification of dimensions, tolerances, processes and notations.
  • Proper usage of symbols and standard abbreviations on drawings.
  • Understanding, researching and following standards, manuals, and references.
  • Research of existing, stock, standard parts for inclusion in designs.
  • Development of assembly drawings.
  • Pictorial representation by means such as axonometric projection or perspective of assembly drawings.
  • Proper identification of parts in an assembly.
  • Recording required information in parts lists.
  • Recording required information in the title block.
  • Knowledge of the various steps a drawing passes through from creation to completion: this includes checking, correcting, and revising.
  • Understanding the concept and development of prototypes. 

E.  Power Transmission

  • Use of handbooks and reference resources.
  • Understanding and defining gear characteristics, terms and uses.
  • Usage of standard formulas for gear design calculations.
  • Understanding the working drawings of gears.
  • Understanding and defining cam types, terms and uses.
  • Usage of standard formulas used in cam design.
  • Understanding cam displacement diagrams and profiles.
  • Knowledge of associated parts such as bearings, seals, and lubrication methods.