Unit MECHANICAL TECHNOLOGY

Course
Mechanical engineering
Study-unit Code
70099909
Curriculum
In all curricula
Teacher
Nicola Senin
Teachers
  • Nicola Senin
Hours
  • 54 ore - Nicola Senin
CFU
6
Course Regulation
Coorte 2020
Offered
2021/22
Learning activities
Caratterizzante
Area
Ingegneria gestionale
Academic discipline
ING-IND/16
Type of study-unit
Type of learning activities
Attività formativa monodisciplinare
Language of instruction
Italian
Contents
Manufacturing processes

- casting processes
- forming processes
- machining processes
- joining and assembly processes
Reference texts
M. Santochi, F. Giusti, Tecnologia meccanica e studi di fabbricazione, Casa Editrice Ambrosiana, Milano

S. Kalpakjian, Manufacturing Engineering Technology, Addison Wesley, New York
Educational objectives
Know the salient aspects of the main manufacturing processes. Evaluate manufacturing challenges to fabricate mechanical components and understand objectives and issues of manufacturing process planning.
Prerequisites
Basic knowledge of mechanical design and physics is required.
Teaching methods
Frontal lectures
Other information
more information available on the MOODLE platform
(www.unistudium.unipg.it)
Learning verification modality
Written and oral test
Extended program
- Assembly processes and products
Architecture of multi-part products. Functional and technological analysis of parts and assemblies. Modular products. Joining processes based on welding and glueing. Assembly processes. Design for assembly. Manual and automated assembly, elements of flexible manufacturing.

- Metals and metal alloys
Atomic structure of pure metals and metal alloys. Crystalline structures, FCC, BCC and HCP configurations. Types of binary metal alloys: substitutional and interstitial solid solutions, intermetallic compounds. Metal alloys with full or partial solubility. Phase diagrams. Mechanical properties of metals and metal alloys. Traction, compression, bending, and other mechanical tests.

- Casting processes
Metal and metal alloys cooling and solidification. Uniform and directional solidification. Generation and growth of dendritic structures, analysis of phase concentration and composition during solidification of metal alloys. Microstructure of cast products. Shape, size and orientation of grains. Expendable mold casting processes: sand casting, shell molding, lost wax casting and lost foam casting. Permanent mold casting: die casting. Quantitative analysis of part solidification and cooling. Heath transfer, thermal modules, shrinkage defects. Placement and dimensioning of feeder systems and gravity filling systems.

- Forming processes.
Fundamentals of elastic and plastic deformation, stress-strain behavior. Forging processes: open die, impression die and closed die. Direct and indirect extrusion processes. Drawing processes. Rolling processes: flat rolling and shape rolling. Sheet metal forming: punching, blanking, bending, drawing.

- Machining processes.
Fundamentals of cutting mechanics and chip formation. Geometry of the cutting tool. Tool wear. Evaluation of machining power and cycle time. Turning processes: architecture of the lathe; cylindrical and flat turning. Milling processes: architecture of a mill; slab milling, face milling and end milling. Machining processes for hole fabrication. Non-conventional machining: water jet cutting, laser cutting.
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