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Engineering drawing

02KXXJM, 02KXXLI

A.A. 2018/19

Course Language

Inglese

Course degree

1st degree and Bachelor-level of the Bologna process in Ingegneria Meccanica (Mechanical Engineering) - Torino
1st degree and Bachelor-level of the Bologna process in Ingegneria Dell'Autoveicolo (Automotive Engineering) - Torino

Course structure
Teaching Hours
Lezioni 39
Esercitazioni in aula 21
Tutoraggio 21
Teachers
Teacher Status SSD h.Les h.Ex h.Lab h.Tut Years teaching
Bonisoli Elvio Professore Associato ING-IND/13 39 0 0 0 8
Teaching assistant
Espandi

Context
SSD CFU Activities Area context
ING-IND/15 6 C - Affini o integrative Attivitą formative affini o integrative
2018/19
The basic language of all engineering activities is represented, in the majority of cases, by design processes that involve the engineer in two distinct activities: modeling and communication. In areas such as systems design and analysis, industrial plants and processes, which are typical fields of automotive engineering, the engineer uses technical drawings in order to identify construction solutions, carry out design calculations, and perform a technical-economic comparative analysis of the various solutions. In this sense, technical drawing is not merely a graphical exercise, but becomes a synthesis of the engineer's expertise about a product which must respect economic, manufacturing and functional specifications. Today technical design is a document to communicate, in a complete, precise, unambiguous and rigorous way, all information of an industrial component with the main objective of its manufacturing.
The basic language of all engineering activities is represented, in the majority of cases, by design processes that involve the engineer in two distinct activities: modeling and communication. In areas such as systems design and analysis, industrial plants and processes, which are typical fields of automotive engineering, the engineer uses technical drawings in order to identify construction solutions, carry out design calculations, and perform a technical-economic comparative analysis of the various solutions. In this sense, technical drawing is not merely a graphical exercise, but becomes a synthesis of the engineer's expertise about a product which must respect economic, manufacturing and functional specifications. Today technical design is a document to communicate, in a complete, precise, unambiguous and rigorous way, all information of an industrial component with the main objective of its manufacturing.
The student will be expected to acquire the ability to representing and dimensioning the most common industrial components, taking into account their functional and manufacturing requirements. as well as interpreting unambiguously and correctly drawings of parts and assemblies. The module therefore intends to provide undergraduate engineers the knowledge and methodologies necessary for components modeling and graphic description, in accordance to national and international Standards.
The student will be expected to acquire the ability to representing and dimensioning the most common industrial components, taking into account their functional and manufacturing requirements. as well as interpreting unambiguously and correctly drawings of parts and assemblies. The module therefore intends to provide undergraduate engineers the knowledge and methodologies necessary for components modeling and graphic description, in accordance to national and international Standards.
Basic principles of orthographic representations.
Basic principles of orthographic representations.
INTRODUCTION TO TECHNICAL DRAWING: The drawing as a graphic language for the communication of technical information. Placing of the design phase in the product life-cycle management. The digital prototype. Standardization and unification within the technical design: scale, sheet formats, linework, lettering and graphic symbols. ORTHOGRAPHIC PROJECTIONS AND SECTIONS: The orthographic projections of solids and their interpenetration. The sections and standards of representation. Axonometric projections. DIMENSIONING AND REPRESENTATION OF ERRORS: Functional and technological dimensioning. Dimensions schemes and related standards. The dimensioning systems. Dimensional tolerances. Tolerances according to ISO. Hole-basis and shaft-basis engineering fits. Surface texture, roughness and graphic symbols in drawings. Tolerance chain stack up analysis. Geometric tolerances. Prescription, choice of datum. FASTENERS AND MECHANICAL COUPLINGS: Screw threads: definitions. Threads standards, related conventional representation and dimensioning. Screws, bolts, threaded nuts and self-locking devices. Shaft-hub connections. Keys, keyways and splined shafts. Pins, elastic rings. Representation of bearings, belts, pulleys and gears.
INTRODUCTION TO TECHNICAL DRAWING: The drawing as a graphic language for the communication of technical information. Placing of the design phase in the product life-cycle management. The digital prototype. Standardization and unification within the technical design: scale, sheet formats, linework, lettering and graphic symbols. ORTHOGRAPHIC PROJECTIONS AND SECTIONS: The orthographic projections of solids and their interpenetration. The sections and standards of representation. Axonometric projections. DIMENSIONING AND REPRESENTATION OF ERRORS: Functional and technological dimensioning. Dimensions schemes and related standards. The dimensioning systems. Dimensional tolerances. Tolerances according to ISO. Hole-basis and shaft-basis engineering fits. Surface texture, roughness and graphic symbols in drawings. Tolerance chain stack up analysis. Geometric tolerances. Prescription, choice of datum. FASTENERS AND MECHANICAL COUPLINGS: Screw threads: definitions. Threads standards, related conventional representation and dimensioning. Screws, bolts, threaded nuts and self-locking devices. Shaft-hub connections. Keys, keyways and splined shafts. Pins, elastic rings. Representation of bearings, belts, pulleys and gears.
The course consists of lectures and practices. The practices consist of graphical representation (in manual traditional way and through 2D and 3D parametric CAD software) in isometric and orthographic projection of parts or assemblies presented individually, or extracted from mechanical systems. The components must be represented in the most appropriate views and sectional views, indicating dimensions, dimensional and geometric tolerances and surface roughness. Clearance and interference cases must also be calculated by means of tolerance chain stack up analysis. Functional dimensioning method is suggested. Three-dimensional models must be modelled and assembled with appropriate mates relationships. Through CAD software 2D drawings of parts and bill of materials must be obtained.
The course consists of lectures and practices. The practices consist of graphical representation (in manual traditional way and through 2D and 3D parametric CAD software) in isometric and orthographic projection of parts or assemblies presented individually, or extracted from mechanical systems. The components must be represented in the most appropriate views and sectional views, indicating dimensions, dimensional and geometric tolerances and surface roughness. Clearance and interference cases must also be calculated by means of tolerance chain stack up analysis. Functional dimensioning method is suggested. Three-dimensional models must be modelled and assembled with appropriate mates relationships. Through CAD software 2D drawings of parts and bill of materials must be obtained.
C.H. Simmons, D.E. Maguire, N. Phelps, Manual of engineering drawing, Elsevier, 2nd Ed. or 3rd Ed., 2004-2009. E. Chirone, S. Tornincasa, Disegno Tecnico Industriale, vol. I e II, Ed. Il Capitello, Torino. S. Tornincasa, A. Zompģ, E. Vezzetti, S. Moos: Quotatura funzionale degli organi di macchine, Ed. CLUT, Torino.
C.H. Simmons, D.E. Maguire, N. Phelps, Manual of engineering drawing, Elsevier, 2nd Ed. or 3rd Ed., 2004-2009. E. Chirone, S. Tornincasa, Disegno Tecnico Industriale, vol. I e II, Ed. Il Capitello, Torino. S. Tornincasa, A. Zompģ, E. Vezzetti, S. Moos: Quotatura funzionale degli organi di macchine, Ed. CLUT, Torino.
Modalitą di esame: Prova scritta (in aula); Prova orale obbligatoria;
Exam: Written test; Compulsory oral exam;
Gli studenti e le studentesse con disabilitą o con Disturbi Specifici di Apprendimento (DSA), oltre alla segnalazione tramite procedura informatizzata, sono invitati a comunicare anche direttamente al/la docente titolare dell'insegnamento, con un preavviso non inferiore ad una settimana dall'avvio della sessione d'esame, gli strumenti compensativi concordati con l'Unitą Special Needs, al fine di permettere al/la docente la declinazione pił idonea in riferimento alla specifica tipologia di esame.
Exam: Written test; Compulsory oral exam;
The exam consists of a graphical test (2 hours - 2 hours and half), an oral test (less than 30 minutes) and an assessment of the practices (drawings) carried out during the course. During the written part, all kind of course notes, drawings, books are suitable to be used. Specific tables for tolerances and standard elements (fasteners, keys, bearings) are available for reference. The maximum evaluation is 30 cum laude/30. At the oral examination will be admitted only students who have achieved a score of at least 18/30 in the written part. In the absence of 80% of practices delivered on time, the student is not granted the certificate of attendance. The positive overall evaluation is between 18/30 and 30 cum laude/30.
In addition to the message sent by the online system, students with disabilities or Specific Learning Disorders (SLD) are invited to directly inform the professor in charge of the course about the special arrangements for the exam that have been agreed with the Special Needs Unit. The professor has to be informed at least one week before the beginning of the examination session in order to provide students with the most suitable arrangements for each specific type of exam.
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