Tecnologia de Maquinagem

Objectives

This course introduces the latest machining technologies and techniques to provide students with the knowledge and skills needed to address and solve industrial challenges. The main focus is on understanding and characterisation of the influence of material removal mechanism and process parameters on production and product quality. Technology evaluation and selection are introduced and illustrated by industrial case studies as well as the machining economics.

Syllabus

1.Introduction to conventional machining technologies, applications and terminology. 2.Conventional machining technologies and typical cutting operations: (i) turning, (ii) milling, (iii) drilling; 3.Cutting tools: (i) geometry, (ii) surface coating and substrate materials, (iii) wear, failure and tool life; 4.Finishing and ultra-precision technologies: (i) AFM, (iii) USM; 5.Introduction to non-conventional machining technologies: (i) EDM, (ii) ECM; 6.Machined products quality: (i) geometrical and dimensional accuracy, (ii) superficial integrity; 7.Technology selection and machining economics; 8.Environmental topics.

Prerequisites

Approval in Manufacturing Processes I or equivalent course.

Cross Competence Component

The work to be carried includes the following soft skills: critical and innovative thinking, decision making, teamwork, leadership, written communication and oral communication, use of computer and multimedia tools, report structuring and presentation.

Laboratorial Component

1. Experimental machinability tests. 2. Conventional and non-conventional machining tests. 3. Finite element simulation of machining processes.

Programming And Computing Component

The computational tasks aim at the numerical simulation of machining processes using the finite element method (FEM). A computer program is used to illustrate the influence of key process parameters on the overall machining performance. Numerical estimates are evaluated against results obtained from industrial case studies.

Ethical Principles

All members of a group are responsible for the group’s work In any assessment, every student shall honestly disclose any help received and sources used. In an oral assessment, every student shall be able to present and answer questions about the entire assignment and solution.