Computer Aided Engineering

Code:

EMM0037

Acronym:

EACO

Keywords
Classification	Keyword
OFICIAL	Engineering Sciences

Instance: 2017/2018 - 2S

Active?	Yes
Responsible unit:	Department of Metallurgical and Materials Engineering
Course/CS Responsible:	Master in Metallurgical and Materials Engineering

Cycles of Study/Courses

Acronym	No. of Students	Study Plan	Curricular Years	Credits UCN	Credits ECTS	Contact hours	Total Time
MIEMM	21	Syllabus since 2006/2007	4	-	6	56	162

Teaching language

Suitable for English-speaking students

Objectives

This curricular unit will present the most common techniques used in product development and expects students to have basic knowledge on technical drawing and 3D CAD

The goal of this course is to provide students with the necessary knowledge about CAD/CAM/CAE, reverse engineering, metrology and rapid prototyping, allowing them to be familiarized with each step of the product development cycle, regarding the CAD/CAM/CAE applications and relevant hardware equipments.

Learning outcomes and competences

At the end, the students should:

1. Have profound knowledge about the potential of CAD/CAM/CAE applications, that allow the 3D modelling, CNC milling, simulation of mechanical properties, simulation of filling and solidification of metallic alloys, rapid prototyping techniques, as well as, reverse engineering and computer aided metrology.
2. Master the mentioned applications.
3. Be able to solve common problems with CAD/CAM/CAE systems, reverse engineering and metrology.
4. Be able to develop in an integrated manner, a project from the initial idea into a working prototype, with suitable material, geometry and dimensions.

Working method

Presencial

Pre-requirements (prior knowledge) and co-requirements (common knowledge)

Students should have knowledge in technical drawings, 3D CAD and English.

Program

CAD – Computer Aided Design:
CAD 3D using surfaces
CAD 3D using solids
Modelling draft angles, parting line and split surface

Reverse Engineering:
3D scanning: Processes for the point cloud capture
Generation of triangle mesh from a point cloud
Generation of surfaces from a triangulated mesh
Advanced CAD techniques for reverse engineering

CAE – Computer Aided Engineering:
Mathematical models: finite elements and finite differences
Simulation of mechanical properties
Simulation of mould filling and alloy solidification

CAM – Computer Aided Manufacturing:
Introduction to CNC and the ISO language
Generating tool paths using a CAM software
Roughing and finishing strategies
Preparing a milling center and executing the generated NC tool path

Metrology:
Presentation of the metrology equipment available
Geometric measurement in 3D
Three dimensional Inspection

Rapid Prototyping:
Subtractive methods and additive methods
Presentation of the different rapid prototyping processes
Preparation and production of the prototype using a SLS machine

Mandatory literature

Plastock, Roy A.; Computação gráfica. ISBN: 972-9241-18-X
Desenho Técnico Moderno, Arlindo Silva, João Dias, Luís Sousa, Editora Lidel. ISBN: 972-757-189-1
Controlo Numérico Computorizado - Conceitos Fundamentais, Carlos Relvas, Publindústria - Edições Técnicas, 2000. ISBN: 972-95794-6-6

Complementary Bibliography

Manuais e tutoriais das seguintes aplicações:
SolidCAST
AutoCAD
Cosmos
SolidWorks
PowerSHAPE
PowerMILL

Comments from the literature

All students have access to the PowerPoint presentations used during classes, which cover all lectured subjects.

Teaching methods and learning activities

At the beginning of the course there will be one lecture to present the basic principles and methodologies. Afterwards, groups of two students will be invited to develop a project of a component selected by themselves. A small report, describing the project and the routes to be followed, will be presented and evaluated.

Before starting to use each software, there will be a small presentation, up to 30 minutes, to explain how to use and its potentialities. 

The project will be developed by means of tutorials. 

Software

Delcam PowerSHAPE
Delcam CopyCAD
Delcam PowerMILL
SolidWorks
AutoCAD
PC DMIS
Cosmos Works
SOLIDCast

keywords

Technological sciences > Technology > Production technology > Manufacturing systems
Technological sciences > Engineering > Simulation engineering
Technological sciences > Technology > Measurement technology

Evaluation Type

Distributed evaluation with final exam

Assessment Components

Designation	Weight (%)
Defesa pública de dissertação, de relatório de projeto ou estágio, ou de tese	30,00
Exame	70,00
Total:	100,00

Eligibility for exams

It is necessary to achive 50% evaluation in both “practical classification" and “theorical classification".

Number of missed classes less than or equal to 25% of the total number of classes.

Calculation formula of final grade

The final classification is calculated with this formula: Final classification = "practical classification" * 0.30 + “theorical classification" * 0.70

Special assessment (TE, DA, ...)

The classification in special situations is done through a practical test and the final exam. Both require a minium score of 50%.

The final classification is calculated with this formula:

Final classification = "practical test" * 0.30 + “theorical classification" * 0.70

Classification improvement

Practical classification (project): no improvement provided

Theorical classification (exam): students may attend the final exam to improve the classification

Observations

Classes are lectured at CINFU (www.cinfu.pt).