The course is designed to give the student a body of knowledge concerning the most important technologies about the machining processes of metal components.
In particular, the student will learn about the main machining processes (turning,
milling, drilling, grinding) and the most common plastic deformation processes, both with reference to the forming of massive components (forging, rolling, extrusion, etc.), and to the processing of sheet metal (folding, pressing, stamping). The study will be directed specifically to the scope of each of the
processes considered , with particular reference to the economic aspects and those related to the quality of the final products. At the end of the course the student will be in a position to choose the different processes that constitute the processing cycle of an industrial component and identify the processing parameters most suitable for each of them.


D1 - Knowledge and understanding skills
At the end of the course, students will have to know the basic principles of the main manufacturing technology processes used in the mechanical field and the main machine tools.
D2 - Ability to apply knowledge and understanding
Students must be able to make a choice about the technologies needed to fabricate an object and solve simple dimensioning problems.
D3 - Autonomy of judgment
Students should be able to evaluate, choosing among the various possibilities, what is the manufacturing process and the most suitable machine tool for the realization of a given object.
D4 - Communicative Skills
Students must be able to describe the characteristics of a manufacturing process and its machine tools.
D5 - Learning Skills
Students should be able to interpret and employ technical manuals to make the choice of manufacturing technology and their machine tools.

Mathematical analysis.
Notions of static.
Concepts of technical drawing.
Reading and comprehension of a technical drawing notation and meaning of geometric and dimensional tolerances and surface roughness. Mechanical properties of materials. Crystal structure of metals, Fe-C diagram, heat treatment of metal alloys, hardening of metallic materials. Concepts of stress, strain, criteria of Tresca and von Mises behavior in the plastic range: flow curve (cold and hot conditions).

Generalities and classification of machining processes. Relationship between technology and
product. The surface finish of a product.
Foundry processes . The solidification of metallic materials. Foundry processes in transitional form: sand casting . Foundry processes in the form permanent mold casting , die casting . The continuous casting process.
Plastic Deformation processes. Mechanical properties of metallic materials. Differences between the behavior of the elastic and plastic behavior of metallic materials. Definition of stress and strain real. Deformation energy. Plasticity criteria. Work hardening. Equations relating stress and strain (hot and cold conditions). The recrystallization of a metallic material. Defects induced by machining, hardening, cracking, residual stress anisotropy.
Machining by plastic deformation of bulk components. Forged billet in
plane strain conditions: slab analysis. Forging in the presence of adhesion phenomena at the interface. Theory of rolling plain . Calculation of power required in rolling. Equilibrium condition at the inlet point. Slab analysis of flat rolling. Forward and reverse extrusion. Drawing: slab analysis. Machining for Plastic Deformation of sheet metal. Shearing. Bending. Drawing.
Determination of the limits of workability of sheet materials.
Machining by chip removal. Mechanics of chip formation: Pjispanen and Merchant models. Materials for cutting tools. Tool wear. Taylor's equation. Generalized Taylor's equation. Milling. Classification and geometry of drill bits. Cutting forces in milling. Drilling and grinding processes. The welding of metallic materials. MMC technologies , GTAW , MIG, May Welding and cutting with plasma. Laser welding. Technologies for cutting of metallic materials: flame cutting, plasma cutting, laser cutting, water jet cutting. The electrical discharge machining (EDM). Electrochemical machining (ECM).

Tecnologia meccanica e studi di fabbricazione
di Marco Santochi, Francesco Giusti
Ed. CEA
F. GABRIELLI, R. IPPOLITO, F. MICARI – Analisi e Tecnologia delle Lavorazioni
Meccaniche – McGraw-Hill, 2008.

Generalities and classification of machining processes. Relationship between technology and
product. The surface finish of a product.
Foundry processes . The solidification of metallic materials. Foundry processes in transitional form: sand casting . Foundry processes in the form permanent mold casting , die casting . The continuous casting process.
Plastic Deformation processes. Mechanical properties of metallic materials. Differences between the behavior of the elastic and plastic behavior of metallic materials. Definition of stress and strain real. Deformation energy. Plasticity criteria. Work hardening. Equations relating stress and strain (hot and cold conditions). The recrystallization of a metallic material. Defects induced by machining, hardening, cracking, residual stress anisotropy.
Machining by plastic deformation of bulk components. Forged billet in
plane strain conditions: slab analysis. Forging in the presence of adhesion phenomena at the interface. Theory of rolling plain . Calculation of power required in rolling. Equilibrium condition at the inlet point. Slab analysis of flat rolling. Forward and reverse extrusion. Drawing: slab analysis. Machining for Plastic Deformation of sheet metal. Shearing. Bending. Drawing.
Determination of the limits of workability of sheet materials.
Machining by chip removal. Mechanics of chip formation: Pjispanen and Merchant models. Materials for cutting tools. Tool wear. Taylor's equation. Generalized Taylor's equation. Milling. Classification and geometry of drill bits. Cutting forces in milling. Drilling and grinding processes. The welding of metallic materials. MMC technologies , GTAW , MIG, May Welding and cutting with plasma. Laser welding. Technologies for cutting of metallic materials: flame cutting, plasma cutting, laser cutting, water jet cutting. The electrical discharge machining (EDM). Electrochemical machining (ECM).

Frontal lessons.
Classroom exercises.
Multimedia.

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Final written exam, consisting of: multiple choice questions, questions and open-ended questions concerning the topics covered in the course (Knowledge and ability to
understanding, knowledge and ability of
applied comprehension, autonomy of judgment e
Communication skills).
Those who pass the final written test can record the mark obtained.
Oral exam: it will consist of three questions regarding the topics presented in the course (Knowledge and ability of
comprehension). During the exam the student must be able to solve simple problems regarding the dimensioning of a process and/or manufacturing operation (Knowledge and ability of
applied comprehension), expressing itself using the terminology learned and justifying his/her autonomous (Autonomy of judgment e
Communication skills). Each answer will be evaluated on a scale from 0 to 10. The final mark will be the sum of the three partial votes obtained.

None. This course deals with engineering topics, no political agenda is supported.