Programme

AIM OF THE COURSE. The course in Manufacturing Technology provides the student with the basic knowledge of the main mechanical processing technologies. Specifically, the course aims to illustrate, transversely, the traditional processes of transformation and mechanical processing, starting from the study of the properties of the materials and related techniques of characterization and arriving at a detailed analysis of the technologies and related processing parameters, as well as the productive context in which they fit. The course aims to provide the student with all the tools to define the processing cycle of a component and to highlight the links between the parameters of the process, the properties of the raw material and the final properties of the semi-finished / finished product. The contents of the course will pour, in a first introductory part, on the study and understanding of the micro / macroscopic properties of the materials and related analysis techniques. Subsequently, the main processing technologies will be examined, such as the manufacturing processes for casting, the processing by plastic deformation (both of massive components and sheets) and the connection processes. Every single processing technology will be analyzed in terms of operating principle, type of production context and technological criticality.

DETAILED PROGRAM OF THE COURSE. Introduction to the course. Overview of production processes and transformation technologies. Metrology and dimensional control. Dimensional accuracy and tolerance, geometric tolerance. Main properties of materials of technological interest. Tests for the determination and measurement of the mechanical properties of materials: Traction, Compression, Flexion, Fatigue. Milling processes. The casting and solidification of the castings. Foundry defects. Casting processes in transitional form. Permanent casting processes. Forming in earth, in shell, in vacuum, die-casting, centrifugal and lost wax. Notes on the design of anime and models. Notes on the sizing of the power supply system. Coolers. Allowances. Technical and economic aspects of foundry processes. The workings for plastic deformation. The theory of plasticity. Massive deformation processes. Forging and molding. Slab method. Molding cycle. Forging defects. Design of the molds. Presses and knits. Lamination. The mechanics of the flat rolling process. The defects of laminated products. Extrusion: general information and equipment. Drawing: general information and equipment. Sheet metal deformation processes. Formability of the plates. Shearing. Bending. Cupping. Joining techniques. Weldings: classification and general information. Structure of welded joints. Welding defects. Flame welding. Arc welding. Resistance welding. Solid state welding. Welding with unconventional techniques. Mechanical junctions. Bonding.

Core Documentation

Text: Mechanical technology. Ediz. MyLab. With e-text. With online expansion by Serope Kalpakjian, Steven R. Schmid
Publisher: Pearson
Necklace: Engineering
Edition: 2
Publication Date: September 2014
EAN: 9788865183748
ISBN: 8865183748
Pages: XIV-872
Format: produced in several parts of different sizes

Type of delivery of the course

PROGRAMMA DETTAGLIATO DEL CORSO: Introduzione al corso. Panoramica dei processi produttivi e delle tecnologie di trasformazione. Metrologia e controllo dimensionale. Accuratezza e tolleranza dimensionale, tolleranza geometrica. Principali proprietà dei materiali di interesse tecnologico. Prove per la determinazione e la misura delle proprietà meccaniche dei materiali: Trazione, Compressione, Flessione, Fatica. Le lavorazioni per fusione. La fusione e la solidificazione dei getti. I difetti di fonderia. Processi di colata in forma transitoria. Processi di colata in forma permanente. Formatura in terra, in conchiglia, sottovuoto, pressofusione, centrifuga e cera persa. Cenni sulla progettazione di anime e modelli. Cenni sul dimensionamento del sistema di alimentazione. Raffreddatori. Sovrametalli. Aspetti tecnico economici dei processi di fonderia. Le lavorazioni per deformazione plastica. La teoria della plasticità. I processi di deformazione massiva. Forgiatura e stampaggio. Metodo dello slab. Ciclo di stampaggio. Difetti di forgiatura. Progetto degli stampi. Presse e magli. Laminazione. La meccanica del processo di laminazione piana. I difetti dei prodotti laminati. Estrusione: generalità e attrezzature. Trafilatura: generalità e attrezzature. I processi di deformazione delle lamiere. Formabilità delle lamiere. Tranciatura. Piegatura. Imbutitura. Lavorazioni per asportazione di truciolo. Meccanica del taglio. Utensili monotaglienti e angoli di taglio. Usura e durata degli utensili. Materiali per gli utensili da taglio. Ottimizzazione dei parametri di taglio. Tornitura. Fresatura. Foratura. Taglio rettilineo. Operazione e macchine di rettifica. Le tecniche di giunzione. Saldature: classificazione e generalità. Struttura dei giunti saldati. Difetti di saldatura. Saldatura a fiamma. Saldatura ad arco. Saldatura per resistenza. Saldatura allo stato solido. Saldature con tecniche non convenzionali. Giunzioni meccaniche. Incollaggio.

Type of evaluation

Verification of students' learning will be done through a written and oral test at the end of the course. In the case of an extension of the health emergency from COVID-19, all the provisions that regulate the methods of carrying out the teaching activities and student assessment will be implemented. In particular, the following methods will apply: an oral exam will be performed at a distance.