Subtractive and Additive Manufacturing

Recommended Prerequisites

Technical drawing. Computer Aided Design (CAD). Materials Science. Engineering Materials. Elasticity and plasticity. Mechanical Behaviour of Materials. Heat and Mass transfer. Manufacturing Processes.

Teaching Methods

The classes take place in theoretical and theoretical-practical regime. In theoretical classes the concepts and technologies associated with concepts are presented. In practical classes some more aspects of technologies using audio-visual and performed application exercises. Students have an active participation throughout the formative process, being asked to present, produce reports and discuss the solutions found for the problems and distributed work. Practical classes are also complemented with visits to companies.

Learning Outcomes

The aim of the curricular unit is to provide skills considered complementary in the area of subtractive and additive technologies, in order to provide the student with autonomy in the design and manufacture of mechanical components, using these technologies.

At the end of the curricular unit the student should: (1) know the most usual CAD/CAM systems and know how to use their functions; (2) know the basic principles of numerical control systems and the associated machine tools; (3) develop numerical command programs for machining and additive manufacturing operations; (4) recognize the complementarity between subtractive and additive manufacturing in all stages of processing: conception, design for sustainability, monolithic and/or hybrid manufacturing and cost versus complexity.

Work Placement(s)

No

Syllabus

1. Unconventional cutting and machining processes.

2. Selection of tools and cutting parameters.

3. Machine control systems.

4. Computer numerical control (CNC).

5. Computer Aided Manufacturing (CAM).

6. Additive manufacturing technologies.

7. Compleity versus cost in additive approach

8. Energietic costs associated with additive manufacturing.

Head Lecturer(s)

Carlos Miguel Almeida Leitão

Assessment Methods

Continuous Assessment
Project: 40.0%
Frequency: 60.0%

Final Assessment
Frequency: 100.0%

Bibliography

- H.A.-G. El-Hofy, Advanced Machining Processes: Nontraditional and Hybrid Machining Processes, McGraw Hill Professional, 2005. ISBN-13: 978-0071453349.

- H.B. Kief, T.F. Waters; Computer Numerical Control, Glencoe/McGraw-Hill, 1992. ISBN: ISBN-13: 9780026764117.

- S. Krar, A. Gill; Computer Numerical Control Programming Basics. Industrial press, inc., 1999. ISBN: 0-8311-3131-4.

- Tuhin Mukherjee, Tarasankar DebRoy ; Theory and Practice of Additive Manufacturing; Wiley, 2023. ISBN: 978-1-394-20227-0.

-  Sualp Ozel; 3D Printing with Fusion 360: Design for additive manufacturing, and level up your simulation and print preparation skills, Packt Publishing, 2023. ISBN-13: 978-1803246642.

- Mastercam 2025 - Mill 2D Training Guide, Caminstructor, Inc., 2025. ISBN:978-1-77851-031-1

- Mastercam 2025 - Mill 3D Training Guide, Caminstructor, Inc., 2025, ISBN: 978-1-77851-032-8