|SCIENTIFIC DISCIPLINARY SECTOR||ING-IND/15|
|MODULES||This unit is a module of:|
The course aims to introduce students to product design.
The course aims to introduce students to product design, with particular reference to the design process and to design for safety, for manufacturability, for cost, for assembly and for environment.
The purpose of the course is to introduce the student to Machine Design which is a universal visual language that conveys the way something works or how it is built.
Attendance to lectures and individual study will allow the student to:
The lessons introduce the UNI ISO standards necessary for the representation of objects in a unambiguous way. They also present the terminology and the basic rules for industrial technical drawing with the appropriate symbology to indicate threads, gears, bearings, etc. Particular attention is given to the methods of assembly/disassembly of the components in order to facilitate their assembly (DFA) but also to make easy their inspection and maintenance. The operation of the studied machine elements is also illustrated by means of videos and their shape and the material thay are made of are justified according to the DFM guidelines but also to the assembly methods (manual, robotic, automatic) to the eco- compatibility guide lines and those related to the aspects of workers' safety and health.
Design of mechanical elements
Connections that cannot be dismantled: Welds. Riveted joints. Glued on joints. Forced connections.
Connections that can be dismantled: Threads. Power screws. Threaded connections. Set screws (outlines).
Elements for transmission of power and lifting: Gears. Flexible elements: Belts; Wire ropes; Chains.
Members for storage or transfer of energy associated to rotating motion.
Brakes. Clutches. Flywheels.
Bearings: Rolling contact bearings. Journal bearings.
Elements of product design
New approach European Directives (outline).
Standards for the safety of machinery: Machinery Directive and Italian D. Lgs. 81/2008.
Total Design. Product design specification.
Cooperative and Eco-compliant Design.
Design for “X” (specifically: Design for manufacturing and for assembly/disassembly).
De Paulis A., Manfredi E., Costruzione di macchine: Criteri di base e applicazioni principali, Pearson Italia - Milano, 2012
Additional suggested books:
Shigley J.E., Progetto e costruzione di macchine, 2a ed., McGraw-Hill, 2009
Chirone, E., Tornincasa, S., Disegno tecnico industriale, Ed. Il Capitello - Torino, 2011
Medri G., Cenni di progettazione di prodotto, Liguori Editore, 2008
Office hours: The teacher is available for the students at the end of each lesson or via a MS Teams meeting.
MARGHERITA MONTI (President)
ROBERTO RAZZOLI (President Substitute)
All class schedules are posted on the EasyAcademy portal.
The exam includes a written test and an oral test.
The written test consists of an exercise to be solved within 2 hours. During the test, only the use of the calculator is allowed. Smartphones have to be switched off.
Those who obtain a score of at least 18/30 for the written test can access the oral exam. Those who do not pass the written test have to repeat it in any official scheduled date.
The oral exam, which can be held within a calendar year after passing the written test, includes two questions: one on the topics of Machine Design and one for those of Machine Drafting. A failed oral exam does not invalidate the written test which can be reused in the future (within one year).
The final mark is given by the average of the marks of the oral and written tests: if it is a decimal, it is rounded to the upper unit.
The written test assesses the student's ability to:
The oral exam focuses on the topics faced during the lectures and aims to assess to which extent the student: