Introduction to Manufacturing Technologies

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In the theoretical classes, each process is explained.

In practical classes, presentations of practical content and generic works were carried out, leading students to a real contact with this technology.

To know in general the different classes of the engineering materials, as well as their most relevant properties or parameters, and fields of application.

Know the different manufacturing processes and equipment used in the production of components, especially for mechanical equipment, with special focus on manufacturing technologies used in metallic and polymeric materials.

Determine dimensions with the main measuring instruments used in mechanical components.

1. Materials and Processing

• Classes of materials – metals, ceramics, polymers and composites. General material properties and parameters.
• Metallic materials: properties and mechanisms of plastic deformation.

2. Metallic Materials Processing

• Conformation by plastic deformation processes: rolling mill, extrusion, drawing and deep drawing processes.
• Casting systems.

3. Polymeric Materials Processing

• Processing techniques: extrusion; injection; blow molding; tubular film casting; rotational molding; compression; thermoforming.

4. Dimensional Metrology

• Accuracy, resolution and repeatability.
• Principle of operation of measuring devices used in projects of mechanical components.
• Standard blocks and calibers.
• Dimensional and geometric tolerance.
• Adjustments, enrolment of tolerated dimensions and surface status inscription
• Execution of measurement operations with different instruments.
• Interpretation of technical drawings containing manufacturing specifications.

5. Machine Cutting Operations

• Conventional machine tools and controlled by computer.
• Sawing, drilling, tapping, turning, milling, grinding and boring operations.
• Cutting tools and parameters.
• Execution of machining operations with different equipment.

6. Rapid Prototyping

• Introduction to Rapid Prototyping technologies: Stereolithography (sl or sla); fabrication of objects by layers (lom); selective laser sintering (sls); three-dimensional printing (tdp); plastic extrusion molding (fdm); thermojet; conversion of prototypes to obtain functional prototypes; converting prototypes into plastic parts; prototype conversion without metal parts; execution of production tools (rt).

7. Welding

• Classification of welding processes.
• Visualization of weld beads executed in different types of materials and by different processes of welding.
• Welding defects and inspection tests.
• Preparation of joints: Terminology, types of joints.
• Execution of small weld seams with different processes

NAO

Recommended Bibliography:

• Smith, W. (1990). Principles of materials science and engineering. McGraw Hill [available in the ISEC library in 4-14-51]
• Rodrigues, J. (2010). Tecnologia Mecânica: Tecnologia da Deformação Plástica, Vol. I (Fundamentos Teóricos) e Vol. II (Aplicações Industriais). Escolar Editora [available in the ISEC library in 4-6-160 and 4-6-161]
• Chiaverini, V. (1986). Tecnologia Mecânica. Vol I e Vol. II, McGraw-Hill [available in the ISEC library in 4-6-44 and 4-6-45]
• Cunha L. (1989). Desenho Técnico. Fundação Calouste Gulbenkian [available in the ISEC library in 4-7-42]
• Davin, J. P., (2008). Princípios da maquinagem (2ª ed). Porto: Publindústria, Edições Técnicas [available in the ISEC library in 4-6-153]
• Santos, J. Quintino, L. (1998). Processos de soldadura. (2ª ed.). Instituto de Soldadura e Qualidade [available in the ISEC library in 4-2-55 and 4-2-56]
• Silva, F. (2017). Tecnologia da Soldadura – Uma abordagem técnico-didática (2ª edição). Publindustria
• Completo A., et al. (2009). Tecnologias de Fabrico, Publindústria