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Faculdade de Ciências e Tecnologia

Technical Design

Code

3663

Academic unit

Faculdade de Ciências e Tecnologia

Department

Departamento de Engenharia Mecânica e Industrial

Credits

4.5

Teacher in charge

António Manuel Flores Romão de Azevedo Gonçalves Coelho

Weekly hours

4

Teaching language

Português

Objectives

 

1. To know how to apply the rules for graphical representation of mechanical components:

 

a) Representation through orthogonal projections. European and American methods. Representation into six orthogonal planes. Most used views of the European projection method. Orthogonal projection dimensioning. Assembly unit drawings. Sectional views representing mechanical components.

 

b) Perspective representation. Cavalier oblique views. Axonometric views. Dimensioning in perspective views.

 

 

 

 

2. To know the fundamentals of Descriptive Geometry and its connections with technical drawing:

 

 

a) Intersection of a line with a plane;

 

b) Intersection of two planes and intersection of a solid with a plane.

c) Intersection of two solids. General method. Intersection of plane surface solids. Intersection of curved surface solids. Rotations and revolutions, true size and shape. Developments.

Prerequisites

Not applicable

Subject matter

Fundamentals of Descriptive Geometry and its connections with technical drawing. Rules for graphical representation of mechanical components. Formats of paper for technical drawing. Types of lines and writing. Legends. Representation through orthogonal projections. European and American methods. Representation into six orthogonal planes. Most used views of the European projection method. Orthogonal projection dimensioning. Assembly unit drawings. Sectional views representing mechanical components. Perspective representation. Cavalier oblique views. Axonometric views. Dimensioning in perspective views. Intersections of geometrical elements. Intersection of two planes. Intersection of a line with a plane. Intersection of a solid with a plane. Intersection of two solids. General method. Intersection of plane surface solids. Intersection of curved surface solids. Rotations and revolutions, true size and shape. Developments.

Bibliography

Desenho Técnico – Luís Veiga da Cunha – Ed. Fundação Calouste Gulbenkian, 13ª edição (2004);

Desenho Técnico Mecânico – Manfé, Pozza, Scarato – Ed. Hemus;

Desenho Técnico Moderno – Arlindo Silva, Carlos Tavares Ribeiro, João Dias, Luís Sousa – Ed. Lidel  (2004)

Teaching method

The oral exposition is essentially the teaching method used, associated with sketches, schemes and resumes made by the teacher in the classroom blackboard. The video projector is also used in the classroom.The teacher solves some typical problems to teach the strategy of resolution to the students. Then some practical problems are distributed and the students have to answer them in the classroom in a period of time. The practical problems are evaluated and considered on the final classification of the student.

Evaluation method

a) The knowledge of each student will be evaluated by two tests, by an exam and by nine practical exercises done in the practical classrooms.

b) The nine practical exercises will be divided in three groups:
    -  Group I -  includes practical exercises number 1, 2 and 3;
    -  Group II -  includes practical exercises number 4, 5 and 6;
    -  Group III includes practical exercises number 7, 8 and 9.

c) The student is admitted to the exam if he gets an approval at least for two practical exercises of each Group. The student should also obtain an approval in the 9th practical exercise.

d)Admission to Exam is valid for one year.

e) Approval presupposes a classification of at least 9,5 points in the exam.

f) The student is freed from exam if he gets an average in two tests of at least 11,5 points and if he gets a classification of at least 8,5 points in each test.

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