Processos de Conformação Plástica

Engenharia Mecânica
4 ECTS; 3º Ano, 2º Semestre, 45,0 TP + 3,0 OT

Lecturer
- Bruno Miguel Santana Chaparro

Prerequisites
NA

Objectives
In this unit the main concepts of science and technology associated to metal forming technologies are presented. The theoretical and practice of metal forming technologies are explored.

Program
1. PLASTICITY
1.1 Introduction
1.2 Models
2. WORK HARDENING
2.1 Work hardening Mechanics
2.2 Work hardening Modelling
3. PLASTIC INSTABILITY
3.1 Localized Deformation
3.2 Luders Bands
3.3 Port-vin Le Chatelier Behaviour
4. TEMPERATURE AND STRAIN-RATE EFFECTS
4.1 Velocity - Hardening rate
5. TECHNOLOGY
5.1 Wire Drawing
5.2 Forging
5.3 Extrusion
5.4 Rolling
5.5 Deep drawing
5.6 Cut process
6. NUMERICAL SIMULATION OF LARGE DEFORMATION PROCESSES
6.1 Modelling
6.2 Examples

Evaluation Methodology
Summative assessment consists of final exams: regular exam (1st season), Supplementary exam (2nd season)
and Supplementary special exam.

Bibliography
- HOSFORD, W. e CADDELL, R. (2007). METAL FORMING: MECHANICS AND METALLURGY. (Vol. 1). Cambrige: Cambridge University Press   
- BANABIC, D. (2007). ADVANCED METHODS IN MATERIAL FORMING. (Vol. 1). Springer: Springer
- Khan, S. (1995). CONTINUUM THEORY OF PLASTICITY. (Vol. 1). Wiley: Wiley-Interscience   
- Rodrigues, J. e Martins, P. (2010). Tecnologia Mecânica - Tecnologia da Deformação Plástica.. (Vol. I e II). Lisboa: Escolar Editora

Method of interaction
Student will be introduced to each subject through presentation of each topic, followed by some practical
examples to consolidate the concepts. Theoretical lectures are complemented with the resolution of exercises.

Software used in class
DD3IMP
LISA FEA