logo-polimi
Loading...
Risorse bibliografiche
Risorsa bibliografica obbligatoria
Risorsa bibliografica facoltativa
Scheda Riassuntiva
Anno Accademico 2017/2018
Scuola Scuola di Ingegneria Industriale e dell'Informazione
Insegnamento 095840 - ADVANCED MANUFACTURING PROCESSES
Docente Strano Matteo
Cfu 10.00 Tipo insegnamento Monodisciplinare

Corso di Studi Codice Piano di Studio preventivamente approvato Da (compreso) A (escluso) Insegnamento
Ing Ind - Inf (Mag.)(ord. 270) - BV (483) MECHANICAL ENGINEERING - INGEGNERIA MECCANICA*EP095840 - ADVANCED MANUFACTURING PROCESSES

Programma dettagliato e risultati di apprendimento attesi

OBJECTIVES AND SUBJECTS OF THE COURSE

The objective ofADVANCED MANUFACTURING PROCESSES is to lead the students to completely "dominate" the main unconventional materials processing technologies, with special reference to material removal, but including also metal forming, welding, surface treatments and additive processing. The course starts from the classification of unconventional machining processes based on the elementary mechanisms and for each process presents the basic principles, the most relevant industrial solutions, and the main applications. Numerical and PC-based exercises, visits to laboratories, companies and trade fairs integrate the program.

LIST OF CONTENTS

  • Classification of unconventional manufacturing processes. A framework for traditional and unconventional manufacturing processes. Classification and overview of special processes, based on the type of energy applied (thermal, mechanical, electrochemical, etc.) and the tool as a “beam” of energy.
  • General modeling of processes and systems. Distinctions and feature of physical, logical and mathematical (analytical, numerical, empirical) models.

THERMAL PROCESSES

  • Thermal modeling. Review of fundamentals of heat transfer. The heat equation and its practical applications in thermal machining and heat treatments.
  • Laser beam processing. Fundamentals of the physics of lasers: stimulated emission, properties of the laser beam. The technology of laser generation (sources) and transmission (optics, glass fibers). Interaction mechanisms between the laser beam and the engineering materials. Laser beam machining by fusion, melt and blow, vaporization and ablation. Laser beam (conduction and keyhole) welding. Other applications of lasers.
  • Electro discharge machining. The technology of EDM by plunge and wire. The mechanism of material removal by spark erosion. Process parameters influence and cutting quality. Applications.
  • Plasma arc processing. Properties of plasmas. The technology of plasma beam generation: historical evolutions of plasma torches. Process parameters influence and cutting quality. Other applications of plasmas.

MECHANICAL PROCESSES

  • Waterjet processing. Introduction to pure and abrasive waterjet machining. The technology of WJ/AWJ systems: pumps and pressure intensifiers, the cutting head and its components. Modeling the jet formation and the interaction mechanisms between the jet and the engineering materials. Process parameters influence in AWJ machining and cutting quality. Empirical modeling and cost optimization of waterjet machining.
  • Hydroforming. Hydroforming of tubes: systems, loading curves, forming mechanisms and main applications. Hydroforming of sheets: systems and applications.
  • Ultrasonic processing. The technology of vibrations generation: electromagnetic and piezoelectric transducers, the sonotrode. Interaction mechanisms between the tool, the abrasive slurry and fragile materials. Main applications of the process. The process of ultrasonic welding: process parameters and applications.
  • Micromachining. Main differences between traditional machining and ultra-precision machining. Typical tolerances and application of micromachining. Examples of systems.

OTHER MANUFACTURING PROCESSES

  • Electrochemical machining. Overview of removal mechanisms and systems.
  • Additive manufacturing processes. Overview of the main processes/systems for metals (SLM, EBM, etc.). Product quality and examples of applications.

Note Sulla Modalità di valutazione

The final exam will consist in a written test, where the student will have to read and comprehend a scientific research paper and than answer a number a questions about the paper, which require numerical calculations.

After the test, an oral discussion will allow to assign the final grades.

Optionally, the students can develop a project during the semester which can yield up to 2/30 additional points.


Bibliografia
Risorsa bibliografica obbligatoriaLecture notes Beep course website
Risorsa bibliografica facoltativaSteen, Laser Material Processing , Editore: springer, Anno edizione: 2003
Risorsa bibliografica facoltativaElman, C. Jameson, Electrical Discharge Machining
Risorsa bibliografica facoltativaCarl Sommer, Non-Traditional Machining Handbook, Editore: Advance Publishing(TX).
Risorsa bibliografica facoltativaGibson, Ian, Rosen, David W., Additive Manufacturing Technologies , Editore: Springer
Risorsa bibliografica facoltativaMichele Monno, Barbara Previtali, Matteo Strano, Tecnologia meccanica. Le lavorazioni non convenzionali , Editore: CittàStudi, ISBN: 978-8825173772

Mix Forme Didattiche
Tipo Forma Didattica Ore didattiche
lezione
60.0
esercitazione
32.0
laboratorio informatico
0.0
laboratorio sperimentale
0.0
progetto
0.0
laboratorio di progetto
10.0

Informazioni in lingua inglese a supporto dell'internazionalizzazione
Insegnamento erogato in lingua Inglese
Disponibilità di materiale didattico/slides in lingua inglese
Disponibilità di libri di testo/bibliografia in lingua inglese
Possibilità di sostenere l'esame in lingua inglese
Disponibilità di supporto didattico in lingua inglese
schedaincarico v. 1.6.5 / 1.6.5
Area Servizi ICT
20/09/2020