Politecnico di Torino
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Politecnico di Torino
Academic Year 2017/18
01RKGNE
Technologies for Additive Manifacturing
Master of science-level of the Bologna process in Mechanical Engineering - Torino
Teacher Status SSD Les Ex Lab Tut Years teaching
Iuliano Luca ORARIO RICEVIMENTO PO ING-IND/16 60 0 40 0 5
SSD CFU Activities Area context
ING-IND/16 10 B - Caratterizzanti Ingegneria meccanica
Subject fundamentals
The objective of the lectures is to offer a general introduction to additive manufacturing technologies, but also to explain the reasons behind their worldwide diffusion in various industrial sectors (such as the aerospace, automobile and white engineering sectors) and in other sectors (such as the biomedical and jewelry sectors).
The AM cycle will be analyzed, the techniques will be classified and the main application fields will be illustrated. The AM techniques that are currently available on the market will be described in detail; the materials that are available, the advantages and drawbacks, the main sectors of use and the future perspectives will be indicated for each technique.
The theme of the introduction of the AM system into industry will be dealt with, highlighting the necessary requirements, the criteria, the management modality and the modifications to the supply chain and to the ICT company platform that will be necessary. The theme of the integration of AM techniques with conventional processes will also be dealt with, in order to maximize the advantages of both solutions. Finally, the AM techniques that could become widespread on the market in the near future will be illustrated as they develop.
Expected learning outcomes
The aim of the subject is to offer the students in-depth knowledge of additive manufacturing technologies and the relative application fields, while developing their ability to define the most suitable selection strategies on the basis of the product, of the material and of the production volume.
The students will also be able to integrate AM techniques with conventional ones in order to maximize the advantages, in terms of reduction of costs and time to market.
At the end of the semester, the students will be asked to:
1. Have knowledge of the AM systems available on the market, the materials associated with each technique, as well as the advantages and the drawbacks of their use;
2. Identify the most suitable AM technique to obtain a reduction in the product/process development times and costs on the basis of the typology of the product;
3. Integrate AM technologies with conventional ones;
4. Apply AM techniques to practical cases: from the conceptual model to the final production.
Prerequisites / Assumed knowledge
The students who follow the subject must have knowledge of industrial technical drawing, CAD 3D modeling techniques and conventional manufacturing processes.
Contents
Lectures (60 h)
1. Additive manufacturing (AM)
The philosophy of layer manufacturing and its economic justification;
Integration with 3D CAD systems;
Classification of AM techniques;
The economic reasons behind the diffusion of AM techniques.

2. AM techniques earmarked for the production of components in polymeric material:
Stereo-lithography;
Polyjet/Project processes;
Direct light projection;
Drop on Demand;
Fused Deposition Modeling;
3D Printing;
Selective laser sintering.

3. AM techniques earmarked for the production of components in metallic materials:
Powder bed processes:
 Selective laser melting;
 Selective laser sintering;
 Electron Beam Melting.
Laser deposition;
Electron Beam Additive Manufacturing.

4. Additive Manufacturing applications
Functional prototyping;
Rapid tooling;
Rapid casting;
Direct production.

5. Finishing processes that can be used on polymeric/metallic components produced by means of additive manufacturing, and methodologies for the evaluation of the performances of the techniques.

6. Trend of the Additive Manufacturing technologies
Techniques in the development phase;
The progressive introduction of process controls;
The simulation of processes as a forecasting instrument of the technological parameters;
Market data relative to the diffusion of the techniques and future perspectives.

7. Introduction of Additive Manufacturing techniques into manufacturing industries
Analysis of the requirements;
Selection criteria of the Additive Manufacturing techniques and of the relative materials according to the proposed application;
Integration with conventional processes;
Management modalities of the production, of the supply chain and of the company ICT platform.


Practical lessons / Laboratories (40 h)
The practical lessons carried out at the "RMLAB" laboratory at the Department of Management and Production Engineering will focus on:
The design for additive manufacturing (DFAM) of components in plastic/metallic materials. The components will be made on Additive Manufacturing equipment already available at the Department of Management and Production Engineering and at the Additive Manufacturing Interdepartmental Center of the Politecnico di Torino (IAM@POLITO);
Choosing the most suitable Additive Manufacturing techniques on the basis of the application.
Moreover, the following are foreseen:
Seminars from company representatives on the various topics dealt with during the course;
Visits to companies working in the Additive Manufacturing sector.
The practical lessons will be conducted in small groups under the guidance of one of the teaching staff, and the students will be asked to draw up a report and present it during the examination.
Delivery modes
Lectures (60 h)
Practical lessons / Laboratories (40 h)
The practical lessons will be conducted in small groups under the guidance of one of the teaching staff, and the students will be asked to draw up a report and present it during the examination.
The proposed practical lessons require the use of the personal computers that are located within the laboratories.
Texts, readings, handouts and other learning resources
The written material and prints of the slides used during the lectures will be made available to the students enrolled in the subject on the Teaching Portal;
I. Gibson, D.W. Rosen, B. Stucker, "Additive Manufacturing Technologies", Springer
Assessment and grading criteria
The final oral examination will be divided into two complementary stages:
The first part will include the topics dealt with during the lectures, and will consist in answering 3/4 open questions. The maximum mark that will be assigned to each question will vary between 6 and 8 points, and the overall maximum mark for this part of the examination is 24 points;
The second part will be focused on a discussion of the report presented to and corrected by a member of the teaching staff. The maximum mark for this part of the examination is 6 points.
The final mark will be obtained by summing the marks of the two evaluations.

Educational tools and consumable items
The proposed practical lessons require the use of the personal computers that are located within the laboratories.
Notes

Teaching aids used by the teaching staff during the course
Video projectors, overhead projector, PCs, video recorders, 3D CAD modeling software, Additive Manufacturing machines, scanning systems with or without contact, point cloud reconstruction software.

Programma definitivo per l'A.A.2017/18
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