|Unit Name||Computer Aided Design and Manufacturing|
|Unit Duration||1 Term (online) or 1 Semester (on-campus)|
Master of Engineering (Mechanical)
Duration: 2 years
|Unit Creator / Reviewer||Henry Wickham|
Masters total course credit points = 48
|Mode of Delivery||Online or on-campus.|
10 hours per week:
Lecture - 1 hour
Tutorial Lecture - 1 hours
Practical / Lab - 1 hour (where applicable)Personal Study recommended - 7 hours (guided and unguided)
Unit Description and General Aims
The unit enhances engineering expertise and confidence in Computer Aided Design (CAD) to not only conceive innovative and efficient designs but also to communicate these designs to customers and manufacturers via AS1100-101 standard detailed work and assembly drawings.
The student will be introduced to the history and principles of Mechanical Computer Aided Design and then undergoes an advanced study of modern Manufacturing Process and costing structures as well as the environmental impact thereof. This knowledge enables students to evaluate and select manufacturing processes for a particular application. The students will also be equipped with advanced modelling skills to purpose design parts for specific manufacturing processes and complete cost studies. Further skillsets are honed to set up and evaluate motion simulation of assemblies and create photorealistic renderings to communicate their ideas to their customers.
Students attain an in-depth knowledge on Additive Manufacturing processes enabling them to evaluate these technologies against user requirements, and configure and export their design for rapid prototyping.
On successful completion of this Unit, students are expected to be able to:
- Evaluate and make recommendations of computer aided manufacturing Processes. Evaluate mechanical components and select the appropriate computer aided manufacturing processes based on user requirements.
- Bloom’s Level 5
- Propose operations, using standard software tools, for parts particular to a specific computer aided manufacturing process with its cost calculations.
- Bloom’s Level 5
- Plan an assembly design in standard software, conduct clearance checks, perform motion simulations and generate photorealistic rendering
- Bloom’s Level 6
- Optimise Six sigma methodology to calculate and plot a statistical tolerance analysis.
- Bloom’s Level 5
- Make judgements based on evidence and external criteria of additive Manufacturing technology and file preparation methodologies.
- Bloom’s Level 5
- Plan detailed work drawings with an understanding and application of geometrical dimensioning and tolerances.
- Bloom’s Level 6
- Construct a complete assembly drawing from a mechanical assembly with AS1100-101 drawing standards including BOM’s and exploded representations.
- Bloom’s Level 6
(e.g. Assignment - 2000 word essay (specify topic) Examination (specify length and format))
|When assessed(e.g. Week 5)||Weighting (% of total unit marks)||Learning Outcomes Assessed|
Type: Multi-choice test (Proctored) / Group work / Short answer questions / Role Play / Self-Assessment / Presentation
Example Topic: Up to topic 4.
|15%||3, 6, 7|
Type: Mid-semester test (Proctored) / Report / Research / Paper / Case Study / Site Visit / Problem analysis / Project / Professional recommendation
Example: Short/Long answers and Problems to solve
Example Topics: Topics 1 to 6 Review a detailed work drawing and interpret the information. Apply different dimensions, Geometrical tolerance, limits and fits, welding symbols and parametric design intent. Application of statistical tolerance analysis for a mass production of a simple assembly.
|25%||3, 4, 6, 7|
Type: Practical assessments, Remote labs, Simulation software or Case studies.
Example: Development of 3D parts and assembly based on the design intent. Perform motion analysis to analyse kinematic/dynamic characteristics. Develop production drawings for part and assembly. Development of CAM/ AM files for any of the part.
|20%||2 - 7|
Type: Report (Final Project)
Word length: 4000 (excluding makers’ diagrams and layout drawings.)
Topic: To submit a complete Mechanical design with work and assembly drawings based on project criteria and taking everything into account the student has learned to date. The student will be given project criteria that must be met. The student must show calculations - engineering, economic and statistical analysis. Modify the existing design and compare both designs based on physical and kinematic characteristics.
|35%||1 - 7|
Attendance / Tutorial Participation
Example: Presentation, discussion, group work, exercises, self-assessment/reflection, case study analysis, application.
|Continuous||5%||1 - 7|
Prescribed and Recommended readings
- Zeid, Ibrahim. Mastering CAD/CAM. McGraw-Hill Higher Education(ISBN- 0072868457).
- Australian Technical Drawing Standard, AS1100-101, 1992.
- Zeid, Ibrahim. Mastering SolidWork. Peachpit Press; 2 edition, 2014) (ISBN- 978-0133885941).
- Part Cost estimators http://www.custompartnet.com
- Henzold, Geometrical Dimensioning and Tolerancing for Design, Manufacturing and Inspection - A Handbook for Geometrical Product Specification Using ISO and ASME Standards, 2nd Edition, Butterworth Heinemann, ISBN 978-0-7506-6738-8
- Groover, Fundamental of modern manufacturing: Materials, Processes, and Systems (ISBN: 978-1-119-47521-7)
- Howard, William E;Introduction to solid modelling using SolidWorks 2012; 2012 (2010 version can also be used); McGraw-Hill Higher Education, 2012.
- Other texts, peer-reviewed journals and websites. To be advised during lectures.
One topic is delivered per contact week, with the exception of part-time 24-week units, where one topic is delivered every two weeks.
Introduction to Mechanical Computer Aided Design and Manufacturing
- Review contents and outcomes of this course. End of term Project options
- A brief review of CAD history; developments to date, 2D, 3D, Solids & Surfaces
- CAD output: 2d Drawings, CAM, FEA, PDM, Motion Simulation, Photorealistic Renderings
- Basic design methodology and tools used in early phase of the product development
- Overview of computer aided manufacturing system, conversion of CAD file to CAM environment.
Solid Modelling – Strategy and Outputs
- Identify design intent behind parts and features and develop an appropriate approach for modelling the parts and assemblies.
- Applying general solid modelling techniques employed in design and manufacture.
- Create fully constrained solid part and assembly models that can be quickly modified using standard software tools.
Solid Modelling – Configurations and Parametric Design
- Create design table configurations for part and features
- Develop mathematical relations between different dimensions and features
- Implement expression for the design optimization
Solid Modelling – Assembly
- Create assembly of different parts with their exploded views
- Generate motion simulations for the kinematic and dynamic analysis of the assembly
- Use standard software tools to conduct clearance checks.
- Produce bottom-up and top-down assemblies and photorealistic renderings
- Identify the elements of a detail drawing and create a simple detail drawing complete with annotation
- An understanding of the common elements of a title block, revision tables and revision process
- Understanding Bill of materials population, including purchased parts
- Create a typical drawing sequence of numbers, Ability to construct an assembly drawing and exploded view of a machine unit
- Construct a set of working drawings of a machine assembly including assembly drawings, according to AS 1100-101, bill of materials, revisions block, part specifications, and general notes
Geometric Dimensioning and Tolerancing
- Interpret and create limit dimensions, describe the nominal size, tolerance, limits, and allowances of two mating parts
- Identify a clearance fit, interference fit, and transition fit, describe the basic hole and basic shaft systems
- Ability to dimension two mating parts using limit dimension, unilateral tolerances, and bilateral tolerances.
- Understand, interpret and apply geometric tolerances.
- Introduction to Six sigma process. Statistical tolerance analysis, calculating and plotting parameter distribution within a tolerance and defining interrelation of distributed variables.
CAM – Manual Programming
- Understand the use of computer numerical control (CNC) system
- Understand the process definition for CNC machining
- Identify and understand different M and G-Codes
- Develop different CNC programming for milling, lathe and grinding operations
CAM – Software and Economics
- Introduction to SolidCAM software – defining the coordinate systems, null-points.
- Applying CAM in different machining operations and applying the software to create M-codes and G-codes.
- Economics of machining using CNC machines
Computer Aided Manufacturing and Automation processes
- Fundamentals of automated production lines
- Working of manual and automated production lines
- Introduction and analysis of cellular manufacturing
- Applications of flexible manufacturing systems
Additive Manufacturing Processes
- Different types of additive manufacturing processes
- Understand different components for extrusion, fusion, jetting, lamination and decomposition AM processes
- Material properties and strength characteristics of the product developed from AM processes
Additive Manufacturing- Economics and Selections
- Ability to evaluate a component and select the appropriate additive manufacturing process based on user requirements.
- Design for Additive manufacturing with its complexity and functionality
- Software requirements and conversion for direct digital manufacturing
Project and/or Unit Review
- Research and technology advancement in CAD/CAM
- In the final week students will have an opportunity to review the contents covered so far. Opportunity will be provided for a review of student work and to clarify any outstanding issues. Instructors/facilitators may choose to cover a specialized topic if applicable to that cohort.
The Australian Engineering Stage 1 Competency Standards for the Professional Engineer, approved as of 2013. This table is referenced in the mapping of graduate attributes to learning outcomes and via the learning outcomes to student assessment.
|Stage 1 Competencies and Elements Competency|
|1.||Knowledge and Skill Base|
|1.1||Comprehensive, theory based understanding of the underpinning natural and physical sciences and the engineering fundamentals applicable to the engineering discipline.|
|1.2||Conceptual understanding of the mathematics, numerical analysis, statistics, and computer and information sciences which underpin the engineering discipline.|
|1.3||In-depth understanding of specialist bodies of knowledge within the engineering discipline.|
|1.4||Discernment of knowledge development and research directions within the engineering discipline.|
|1.5||Knowledge of engineering design practice and contextual factors impacting the engineering discipline.|
|1.6||Understanding of the scope, principles, norms, accountabilities and bounds of sustainable engineering practice in the specific discipline.|
|2.||Engineering Application Ability|
|2.1||Application of established engineering methods to complex engineering problem solving.|
|2.2||Fluent application of engineering techniques, tools and resources.|
|2.3||Application of systematic engineering synthesis and design processes.|
|2.4||Application of systematic approaches to the conduct and management of engineering projects.|
|3.||Professional and Personal Attributes|
|3.1||Ethical conduct and professional accountability.|
|3.2||Effective oral and written communication in professional and lay domains.|
|3.3||Creative, innovative and pro-active demeanor.|
|3.4||Professional use and management of information.|
|3.5||Orderly management of self and professional conduct.|
|3.6||Effective team membership and team leadership.|
- Software: Solid works with solid CAM
- Version:16 or above
- Instructions: Add in-solid cam
- Additional resources or files: N/A