CAD06008 2019 CAD/CAM 201
The overall aim of this module is to equip students with the knowledge, skills and techniques needed to create solid model of mechanical products and mechanisms and to generate the CNC code necessary for computer aided manufacture. Student will use a 3D CAD system to produce 3D models and all necessary working drawings and will use a CAM system to produce the CNC code needed for manufacture.
On completion of this module the learner will/should be able to;
Create solid models of mechanical parts containing intricate features and patterns.
Build 3D assembly models of mechanical mechanisms.
Design mechanical devices which incorporate gears, cams, bearings, belts, chains and the use of wizards and other standard parts libraries.
Produce working drawings which communicate all necessary manufacturing information for parts and assemblies of mechanical products.
Read and interpret engineering drawings and produce drawings that conform to international standards.
Use CAM software to construct 2D & 3D geometry of components and import and manipulate geometry created in CAD packages.
Select and specify suitable machining operations, machine parameters, machine tooling and component set-ups.
Generate machining code and graphically simulate the CNC machining process using CAM software.
Teaching and Learning Strategies
This module will be delivered in a computer aided design laboratory and, along with the necessary theory, will involve the use of a 3D mechanical modelling CAD system to generate solid models of parts and assemblies and the drawings required to fully describe them. It will also involve the use of a CNC/CAM system to generate CNC code for CNC machining.
Students will be timetabled for three hours per week in a computer aided design laboratory.
Students will also be timetabled for two hours per week in a CNC laboratory.
In addition to the normal lectures and practical classes, Designers / Engineering Practitioners working in industry will be invited as guest lecturers and site visits to companies will be arranged, where possible.
Module Assessment Strategies
Continuous assessment will involve the assessment of all assignments undertaken in class, design project activity completed independently and an end of term in-house assessment test.
Students who fail the module but satisfy the attendance requirements will be required to resubmit all continuous assessment assignments and/or undertake an repeat end of semester assignment test.
Part Modelling: Sketch options, entities, tools and patterns, sketch dimensions and relations, sketching techniques, reference geometry, file types, feature creation, extrusions, cuts, revolves, lofts, sweeps, shells, ribs, fillets, chamfers, holes, patterns, part properties, editing definition, colour and appearance, suppressing features.
Assembly Modelling: Inserting/adding components to an assembly, assembly relations and mates, sub-assemblies, exploded views, component patterns, display controls.
Design: Design of mechanisms which incorporate a range of machine elements such as: gears, cams, belts, chains, bearings, actuators, fasteners. Basic calculations involving the design, selection and inclusion of machine elements in mechanical mechanisms. Use of design libraries, blocks, standard parts toolbox, feature and part calculators, hole wizards, electronic catalogues, downloading of parts and assemblies, file formats.
Drafting: Creation of detail and assembly drawings of mechanical parts and mechanisms, selection and specification of sheet size, scale, format and drawing standard, creation of standard and derived views, view display and manipulation, insertion of dimensions and annotations, creation and placement of tables and bill of materials.
Drawing Standards: Drawing interpretation, determination of shape, size and manufacturing instructions, ISO drawing standards, principles of presentation, orthographic, sectional and special views, dimensions and annotations on drawings.
CAM Modelling: Create 2D & 3D geometries and components using functions such as; lines, circles, arcs, fillets, chamfers, extrusions, cuts, shells, revolves, sweeps, lofts. Manipulate 2D & 3D geometries and components using functions such as; trim, break, join, extend, translate, mirror, rotate, scale. Import external 2D & 3D geometries and components using file conversion e.g.; IGES & DXF files.
CAM Machining: Selection of operation type e.g. mill, lathe, EDM. Selection of component material and stock size. Selection of workholding equipment. Definition of part & stock set-up. Selection of tooling and calculation of speeds and feeds. Program machining process using toolpath functions such as; contour, face, pocket, drill, thread, roughing, finishing, multiaxis (3D). Generate code for machining process using post processor and understanding of basic code generated (G-codes M-codes). Program simulation and troubleshooting.
Coursework & Assessment Breakdown
|Title||Type||Form||Percent||Week||Learning Outcomes Assessed|
|1||Continuous Assessment of Assignments (CAD)||Continuous Assessment||Practical Evaluation||30 %||OnGoing||1,2,3,4,5|
|2||End of Semester Assessment Test||Continuous Assessment||Closed Book Exam||30 %||End of Term||1,2,3,4,5|
|3||Continuous Assessment of Assignments (CAM))||Continuous Assessment||Practical Evaluation||40 %||OnGoing||6,7,8|
Full Time Mode Workload
|Design Projectwork||Computer Laboratory||Computer Aided Design||3||Weekly||3.00|
|Design Projectwork||Computer Laboratory||CNC programming & CAM||2||Weekly||2.00|
|Independent Learning||Not Specified||Study and practice||3||Weekly||3.00|
Required & Recommended Book List
I.S.O.Standards Handbook ISO
2009-02-02 The Mechanical Design Process McGraw-Hill Science/Engineering/Math
ISBN 0072975741 ISBN-13 9780072975741
The fourth edition of The Mechanical Design Process combines a practical overview of the design process with case material and real-life engineering insights. Ullman's work as an innovative designer comes through consistently, and has made this book a favorite with readers. This book conveys the "flavor" of design, addressing both traditional engineering topics as well as real-world issues like creative thinking, synthesis of ideas, visualization, teamwork, sense of customer needs and product success factors, and the financial aspects of design alternatives, in a practical and motivating manner. New in this edition are examples from industry and over twenty online templates that help students prepare complete and consistent assignments while learnign the material. This text is appropriate primarily for the Senior Design course taken by mechanical engineering students, though it can also be used in design courses offered earlier in the curriculum. Working engineers also find it to be a readable, practical overview of the modern design process.
2018 SOLIDWORKS 2018 FOR DESIGNERS.
ISBN 1640570098 ISBN-13 9781640570092
2012-05-15 Introduction to Computer Numerical Control (CNC)
ISBN 0132176033 ISBN-13 9780132176033
Aimed at undergraduate courses, this text uses a practical step-by-step approach to develop the most fundamental concepts in CNC (computer numerical control) technology. It focuses on word address (G and M code) programming for the industry standard Fanuc controllers.
2012-11-02 CNC Handbook McGraw-Hill Education
ISBN 0071799486 ISBN-13 9780071799485
Practical CNC design, construction, and operation techniques Gain a thorough understanding of computerbased numerical control systems, components, and technologies. Featuring hundreds of color images and schematic diagrams, CNC Handbook explains machining fundamentals and shows you how to build and safely operate fully automated, technically sophisticated mechatronic equipment. Learn how to work with position controllers, accomplish rapid and precise machine motions, use CAD and CAM systems, and integrate CNC into IT networks. The latest CNC programming languages, flexible manufacturing systems, and troubleshooting methods are also discussed in this hands-on guide. CNC HANDBOOK COVERS: Open- and closed-loop control systems Programmable logic controllers and switches Machine tools and machining centers Turning, milling, and grinding equipment Industrial robots and robot controllers Additive and flexible manufacturing systems Direct and distributed numerical control CNC programming platforms and languages Close-to-process production measurement
Suppliers Manuals as available
In Class links supplied
Addressed in Computer Aided Design and CAM/CNC Labatories