Technical Drawing

Code:

EM0006

Acronym:

DT

Keywords
Classification	Keyword
OFICIAL	Drawing, Design and Manufacture

Instance: 2020/2021 - 1S

Active?	Yes
Web Page:	http://www.fe.up.pt/~fonseca/dtlem/dtlem.html
Responsible unit:	Industrial Drawing Section
Course/CS Responsible:	Master in Mechanical Engineering

Cycles of Study/Courses

Acronym	No. of Students	Study Plan	Curricular Years	Credits UCN	Credits ECTS	Contact hours	Total Time
MIEM	240	Syllabus since 2006/2007	1	-	6	52	162

Teaching language

Portuguese

Objectives

Introduction of the concept of Standardization in general and of its importance in Engineering. Acquisition of deep knowledge about the representation of the nominal shape and dimensions of objects. Development of spatial visualization and technical communication skills. Introduction to the concept of Geometrical product specification (GPS). Acquisition of basic knowledge about surface development methods. Introduction to diagrammatic drawings.

Learning outcomes and competences

At the end of the course, the students should be able to:

1) Make drawings of objects in orthographic representation and with nominal dimensioning.

2) Read drawings of objects in orthographic representation and make the correspondent pictorial representations (isometric drawings).

3) Interpret the meaning of the dimensional tolerances inscribed in drawings and determine the ISO fits that fulfils the design requirements previously established.

4) Make the developed views of polyhedral and single-curved surfaces.

Technical skills acquired in this Unit are important for course units like Mechanical Engineering Drawing, Computer Aided Design and Manufacturing and Introduction to Machine Design.

Working method

Presencial

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

Basic notions about drafting and drawing instruments (secondary school). - Fundamentals of plane and solid Euclidean geometry (secondary school). - Elements of descriptive geometry (secondary school).

Program

STANDARDIZATION in general and in technical drawings. TECHNICAL PRODUCT DOCUMENTATION: scales, drawing media, ISO lettering and lines. Types of projection systems. Short references to the dihedric method. ORTHOGRAPHIC REPRESENTATIONS: general principles of presentation for views, the choice of views, partial views, auxiliary views, cuts and sections. The reading of orthographic drawings. PICTORIAL REPRESENTATIONS: axonometric representations (isometric drawings). PRESENTATION OF DIMENSIONS AND TOLERANCES: general principles; dimensioning of angles and slopes on prisms and wedges; dimensioning of conical tapers and taper angles; dimensioning of profiles; theory of nominal dimensioning and preferred numbers. GEOMETRICAL PRODUCT SPECIFICATION (GPS): The concept of GPS, the model for geometric specification; fundamental tolerancing principle; dimensional tolerances - ISO system of limits and fits. SURFACE DEVELOPMENT. Simplified representation of PIPELINES.

Mandatory literature

Almacinha, J.; Simões Morais, J.; Texto de Apoio à Unidade curricular de Desenho Técnico (MIEM), AEFEUP, 2020
Morais, José Manuel de Simões; Desenho técnico básico. ISBN: 972-96525-2-X

Complementary Bibliography

ISO Switzerland; ISO Standards Handbook - TECHNICAL DRAWINGS. Vols 1 e 2, 4ª ed, 2002
ISO Standards Handbook - Technical product specification, ISO, 2009. ISBN: 978-92-67-10510-9
International Organization for Standardization; Limits, fits and surface properties. ISBN: 92-67-10288-5
CHEVALIER, A.; Guide du Dessinateur Industriel , Paris: Hachette Technique, 2004
Silva, Arlindo 070; Desenho técnico moderno. ISBN: 972-757-337-1
Earle, James H.; Engineering design graphics. ISBN: 0-13-030365-8
French, Thomas E.; Engineering drawing and graphic technology. ISBN: 0-07-113302-X
Morais, José Manuel de Simões; Desenho básico. ISBN: 972-9247-00-5

Teaching methods and learning activities

Lectures are based on detailed expositions of each basic topic of the course, illustrated by the presentation of application examples.

Tutorials are based on brief presentations of complementary topics of the course, intercalated with the resolution, by the students, of exercises considered relevant and that can be found in the main bibliography of the course unit. 

keywords

Technological sciences > Technology > Graphic techniques
Technological sciences > Engineering > Mechanical engineering
Technological sciences > Engineering > Project engineering
Social sciences > Communication sciences > Graphic communication
Technological sciences > Technology > Measurement technology

Evaluation Type

Distributed evaluation without final exam

Assessment Components

Designation	Weight (%)
Teste	100,00
Total:	100,00

Amount of time allocated to each course unit

Designation	Time (hours)
Estudo autónomo	110,00
Frequência das aulas	52,00
Total:	162,00

Eligibility for exams

Students have to attend to 75 % of the classes, according to Article 6 of the Specific Rules for FEUP's Students Assessment.

Calculation formula of final grade

Final grade = 0,4 * A + 0,35 * B + 0,25 * C

where:

A - is the exercice of "Orthographic representation and dimensioning" (1st test);

B - is the exercice of "Isometric representation" (2nd test);

C - is the exercice of "Dimensional tolerances and surface development or pipelines" (2nd test).

Carrying out the three individual evaluation exercices is a necessary condition for considering that exists a minimum number of elements that allows a correct assessment of each student.

It will take place an optional resit exam (it will cover one of the two tests).

When the final grade is greater or equal than 9,0/20, information (if it exists) about the remaining work developed in classes may increase this grade up to a maximum of 2,0/20.

The attainment of a final grade, in the course unit, greater than 18/20 must be confirmed by a complementary test.

Special assessment (TE, DA, ...)

An exam at the special season (according to items 8.1, 8.3 c) and 8.4 c) in Article 8 of the Specific Rules for FEUP's Students Assessment).

Classification improvement

According to Article 11 and 12 of the Specific Rules for FEUP's Students Assessment.