- Docente: Alessandro Fortunato
- Credits: 6
- SSD: ING-IND/16
- Language: Italian
- Moduli: Alessandro Fortunato (Modulo 1) Lorenzo Donati (Modulo 2)
- Teaching Mode: Traditional lectures (Modulo 1) Traditional lectures (Modulo 2)
- Campus: Forli
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Corso:
First cycle degree programme (L) in
Mechanical Engineering (cod. 0949)
Also valid for First cycle degree programme (L) in Aerospace Engineering (cod. 8263)
Learning outcomes
The student will learn the basic principles of manufacturing processes based on cutting by means of machine tools and casting techniques. He will be able also to organize simple production sequences (including tooling geometry, machine tool selection) basing on product geometry, batch number and dimensional requirements.
Course contents
FUNDAMENTALS OF CUTTING: Mechanics of chip formation, types of chips, Cutting forces, stresses and power, theory of Merchant, cutting temperatures, wear and failure. Roughness finishing and surface integrity. Machinability
TOOL MATERIALS: Carbon steels, high speed steels, High strength Alloys, sintered carbides, ceramic tools, diamonds, TiN coated high speed steels, cermets, cubic boron nitrides. Monitoring of tool wear, cutting fluids, cutting fluid management.
MACHINING OPERATIONS: turning, boring, facing, drilling, reaming. Lathe design and terminology, boring machine and boring tools. Workholding in lathes: mandrels, chucks, collets. Drilling Machines and drills. Milling: fundamentals of milling, milling cutters and milling machines.
Broaching, Sawing, Shaping, Planing
ABRASIVE MACHINING: Abrasive grain size and geometry, grinding, grinding wheels, bonding materials, dressing and truing, honing.
WORKHOLDING DEVICES: design criteria, location principles, clamping consideration, group jigs and fixtures
CASTING TECNOLOGIES: generalities, metal solidification, micro/macro segregation, related issues. Sand casting, shell casting, high pressure die casting, investment casting.
Readings/Bibliography
A.Fortunato, A. Ascari, E. Liverani "Tecnologia Meccanica. Introduzione alle lavorazioni per asportazione di truciolo", Esculapio editore, Bologna, 2016
F. Gabrielli, R. Ippolito, F. Micari “Analisi e tecnologia delle lavorazioni meccaniche” McGraw-Hill
A. Zompi, R Levi "Tecnologia Meccanica-Lavorazioni ad asportazione di truciolo" UTET
S. Kalpakjian "Manufacturing Engineering and technology", Addison-Wesley
Teaching methods
Powerpoint presentation; Exercices and discussion of industrial problems.
Assessment methods
Final test in written form with 2 questions about the cutting principle and one test about the fabrication of a mechanical component. Design of a foundery cycle and open/closed questions on casting theory.
Tests list and results are managed through Almaesami website:
https://almaesami.unibo.it/
It's mandatory to sign in on the website in order to attend the exam, the lists are closed 2 days before the exam.
Teaching tools
Book and slides
Office hours
See the website of Alessandro Fortunato
See the website of Lorenzo Donati