Academic Year 2022/2023
- Docente: Alessandro Fortunato
- Credits: 6
- SSD: ING-IND/16
- Language: Italian
- Teaching Mode: Traditional lectures
- Campus: Bologna
- Corso: First cycle degree programme (L) in Mechanical Engineering (cod. 0927)
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from Feb 20, 2023 to Jun 09, 2023
Learning outcomes
The student will learn the basic principles of manufacturing processes based on cutting by means of machine tools. 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. Gear manufacturing.
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
NUMERICAL CONTROL AND MACHINING CENTERS: CAD-NC, level of automation, types of control, servomotors, ball lead screw, table positioning measure, velocity transducers, part programming, turning centers and milling centers.
Readings/Bibliography
A.Fortunato, A. Ascari, E. Liverani "Tecnologia Meccanica. Introduzione alle lavorazioni per asportazione di truciolo", Esculapio editore, Bologna, 2016
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 and oral form.
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