Mechanical Engineering Drawing

Technical Drawing

The curricular unit involves two components: Traditional drawing, which is included in theoretical-practical classes, and computer-aided design, which is included in practical laboratory classes.

In theoretical-practical classes, a theoretical exposition of each subject is made, complemented by the resolution of application exercises. In laboratory classes, a theoretical introduction to the teaching content is made, followed by the resolution of practical exercises on the computer.

Objectives: Knowledge acquisition and development of skills in dimensional and geometric standardization and tolerance in Mechanical Construction Design. Improvement of spatial visualization and technical communication capabilities. Reading, interpretation and execution of complete drawings of mechanical assemblies from a functional aspect using traditional means and computer-aided design (CAD) tools.

Generic skills: Promote the exchange of ideas and discussion of problems and solutions; Develop self-learning habits.

Specific skills:

Create, read and interpret assembly drawings and parts lists of mechanical systems, with the selection of standardized elements.

Make definition drawings of mechanical system components based on a functional analysis based on their overall drawings.

Identify standard components existing in real-world mechanical systems.

Know their representations in drawing and elementary mechanical functions.

1. Functional dimensioning: Functional dimensions; Dimensional tolerance; Geometric tolerance: Definitions; Geometric symbols; Application and interpretation of geometric tolerances; Quotas without indication of tolerances; Adjustments; Enrollment of tolerated quotas; Surface states. 2. Design of connection elements and machine parts: Main parts connection processes; Threads; Threaded parts; Nuts; Screws; Coverings; Dowels and sections; Welding; Legs; Washers; Cog wheels. 3. Design of sets: Types of set designs; Execution of set drawings; Parts lists. 4. Parametric modeling: Sketches; Restrictions; Creation of three-dimensional models; Assemblies; Manufacturing design – Projection methods, Drawing resources, Sheet formats, Legends, Symbols, Projections, Dimensioning, Dimensioning styles; Assembly drawings; Welded Construction; Sheet metal modeling; Bolted connections; Animation. Presentations.

NAO

RECOMMENDED BIBLIOGRAPHY:

SILVA, A., RIBEIRO, C., DIAS, J., SOUSA, L. (2013) – DESENHO TÉCNICO MODERNO, Ed. FCA (available in the ISEC Library: 4-7-66)

MORAIS, J.M. (2015) – DESENHO TÉCNICO BÁSICO – III VOLUME, Ed. Porto Editora (available in the ISEC Library: 4-7-69)

CUNHA, L. V. (1982) – DESENHO TÉCNICO, Ed. Fundação Calouste Gulbenkian (available in the ISEC Library: 4-7-42)

Solidworks 2023 Manual. (www.solidworks.com)