Industrial Drawing

Code:

L.EGI003

Acronym:

DI

Keywords
Classification	Keyword
OFICIAL	Design and Manufacturing

Instance: 2024/2025 - 1S

Active?	Yes
Responsible unit:	Industrial Drawing Section
Course/CS Responsible:	Bachelor in Industrial Engineering and Management

Cycles of Study/Courses

Acronym	No. of Students	Study Plan	Curricular Years	Credits UCN	Credits ECTS	Contact hours	Total Time
L.EGI	126	Syllabus	1	-	4,5	52	121,5

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).

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) Read or write geometrical specifications (tolerances) in the detail drawings of mechanical systems components and select ISO fits in order to fulfil the predetermined design requirements.

Technical skills acquired in this Unit are important for course units like “Manufacturing Processes”, “Computer Aided Design and Drafting” and “Design and Manufacturing”.

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. The Standardization in general and in technical drawings. TECHNICAL PRODUCT DOCUMENTATION. Scales, drawing media, ISO lettering and lines. ORTHOGRAPHIC REPRESENTATIONS. Types of projection systems. The dihedral method. 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 wedges, cones and 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 tolerancing - ISO system of limits and fits; geometrical tolerancing; interdependence requirements between size and geometry (envelope, maximum material, least material and reciprocity); general tolerances; indication of surface texture.

Mandatory literature

Almacinha, J.; "Texto de Apoio à Unidade curricular de Desenho Industrial (L.EGI)", 4ª ed., Porto: Ed. AEFEUP, 2024
Morais, José Manuel de Simões; Desenho técnico básico. ISBN: 972-96525-2-X

Complementary Bibliography

ISO Standards Handbook - TECHNICAL DRAWINGS. Vols 1 e 2, Switzerland: ISO. 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
French, Thomas E.; Engineering drawing and graphic technology. ISBN: 0-07-113302-X
Earle, James H.; Engineering design graphics. ISBN: 0-13-030365-8
Morais, José Manuel de Simões; Desenho básico. ISBN: 972-9247-00-5

Teaching methods and learning activities

Weekly lectures (1 h T) are based on detailed expositions of each basic topic of the course, illustrated by the presentation of application examples.

Weekly tutorials (1.5 h TP + 1.5 h TP) 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.

The attendance to the students, by the teachers, exists throughout the semester, in pre-established hours. At the times of evaluation tests, the teachers provide, in previous days, longer periods of service.

keywords

Technological sciences > Engineering > Project engineering
Technological sciences > Engineering > Industrial engineering
Technological sciences > Technology > Graphic techniques
Social sciences > Communication sciences > Graphic communication

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	69,50
Frequência das aulas	52,00
Total:	121,50

Eligibility for exams

To be approved in this course unit, students cannot miss more than 25 % of 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 - "Orthographic representation and dimensioning" (1st test);

B - "Isometric representation" (2nd test exercise);

C - "Geometrical product specification (tolerancings)" (2nd test exercise).

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

The approval in this course unit depends on the average of the evaluation exercises A and B marks to be greater or equal than 8,0/20 and on the “geometrical product specification” evaluation exercise mark to be greater or equal than 8,0/20.

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 9/20, information (if any) about students’ remaining work and performance may improve this grade up until two more values.

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

Examinations or Special Assignments

Not applicable

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

An exam (according to Articles 11 and 12 of the Specific Rules for FEUP's Students Assessment).