Students will acquire basic knowledge in industrial design and drafting, with particular reference to the mechanical application field.
The course aims at providing the students with the acquisition of basic skills for drawing all the main machine components and understanding drawings already made by others. After a brief introduction to the geometrical bases, it treats, according to the international standards, the rules and norms for the right representation of each component, by accounting for the function it plays into the device or assembly and for the cycle it experiences during its manufacturing.
Students follow a practical training performing hand sketches.
The course aims at providing the students with the acquisition of basic skills for drawing all the main machine components and understanding drawings already made by others. After a brief introduction to the geometrical bases, it treats, according to the international standards, the rules and norms for the right representation of each component, by accounting for the function it plays into the device or assembly and for the cycle it experiences during its manufacturing.
Students follow a practical training performing hand sketches.
teacher profile teaching materials
1 Role of Engineering Drawing
• Introduction, Mechanical Drawing in the design workflow;
• Technical information, general, principles of drawings, Classification of Drawings;
• Layout of drawing sheets, Title Block, Layout of drawing sheets, scales, lines, Folding of drawing sheets;
• Part and assembly representation.
2 Internationals Standards and normative
• Introduction and motivations;
• Standard code of practice for mechanical drawings.
3 Projections
• Projections: principles, definitions, Theories of projection;
• Orthographic projections: Principle of First Angle Projection, Methods of Obtaining Orthographic Views, Presentation of Views, Presentation of Views, Position of the Object, Selection of Views, Development of Missing Views.
4 Sections
• General principles, Section Views, Hatching of Sections, Cutting Planes, Revolved or Removed Section, Half Section, Local Section, Arrangement of Successive Sections.
5 Dimensioning
• General principles;
• Termination and Origin Indication, Method of Execution;
• Methods of Indicating Dimensions, Special Indications;
• Arrangement of Dimensions and Tolerances.
6 Limits, Tolerances, and fits
• Surface Roughness, indications and symbols;
• Fundamental tolerances, fundamental deviations, Method of Placing Limit Dimensions;
• Geometrical tolerance, Indicating Geometrical Tolerances on the Drawing;
• Indication of Feature Controlled, Standards Followed in Industry.
7 Materials
• Steel and cast iron;
• Alloys, aluminum and it alloys, bronze, copper and its alloys;
• Plastics and composites.
8 Threads
• Screw thread series, nomenclature, normative;
• Thread series and designation;
• Whitworth threads;
• Thread designation, bolted joints, nuts and studs.
9 Joints
• Temporary and Thread joints;
• keys, splines, cotters and pin joints;
• Welded Joints and Symbols;
• Permanent joints, rubber band fasteners.
10 Transmitting the power
• Introduction to motion guides and joints;
• Sliding and Rolling contact Bearings;
• motion guides and joints, transmission parts, gear box.
11 Piping design
• Normative, standard code, and components for the piping representation, symbols and schemes;
• Pipe representation, air ventilation, gas piping, marine applications;
• Piping and regulation: pipes, valves, flanges, pipe connections, pipe joints, boilers, tanks, pumps, gaskets.
12 3D-Modelling and Product Lifecycle
• Computer Aided-Design (3D) and Drawing (2D);
• Product Lifecycle and product design;
• Tools for the Product Lifecycle Management and Development, PLM, PDM;
• 3D annotations and Product Manufacturing Information (PMI).
• T.E. French, C. J. Vierck, R. J. Foster, “GRAPHIC SCIENCE AND DESIGN”, 4th edition, McGraw Hill, 1984;
Programme
Contents1 Role of Engineering Drawing
• Introduction, Mechanical Drawing in the design workflow;
• Technical information, general, principles of drawings, Classification of Drawings;
• Layout of drawing sheets, Title Block, Layout of drawing sheets, scales, lines, Folding of drawing sheets;
• Part and assembly representation.
2 Internationals Standards and normative
• Introduction and motivations;
• Standard code of practice for mechanical drawings.
3 Projections
• Projections: principles, definitions, Theories of projection;
• Orthographic projections: Principle of First Angle Projection, Methods of Obtaining Orthographic Views, Presentation of Views, Presentation of Views, Position of the Object, Selection of Views, Development of Missing Views.
4 Sections
• General principles, Section Views, Hatching of Sections, Cutting Planes, Revolved or Removed Section, Half Section, Local Section, Arrangement of Successive Sections.
5 Dimensioning
• General principles;
• Termination and Origin Indication, Method of Execution;
• Methods of Indicating Dimensions, Special Indications;
• Arrangement of Dimensions and Tolerances.
6 Limits, Tolerances, and fits
• Surface Roughness, indications and symbols;
• Fundamental tolerances, fundamental deviations, Method of Placing Limit Dimensions;
• Geometrical tolerance, Indicating Geometrical Tolerances on the Drawing;
• Indication of Feature Controlled, Standards Followed in Industry.
7 Materials
• Steel and cast iron;
• Alloys, aluminum and it alloys, bronze, copper and its alloys;
• Plastics and composites.
8 Threads
• Screw thread series, nomenclature, normative;
• Thread series and designation;
• Whitworth threads;
• Thread designation, bolted joints, nuts and studs.
9 Joints
• Temporary and Thread joints;
• keys, splines, cotters and pin joints;
• Welded Joints and Symbols;
• Permanent joints, rubber band fasteners.
10 Transmitting the power
• Introduction to motion guides and joints;
• Sliding and Rolling contact Bearings;
• motion guides and joints, transmission parts, gear box.
11 Piping design
• Normative, standard code, and components for the piping representation, symbols and schemes;
• Pipe representation, air ventilation, gas piping, marine applications;
• Piping and regulation: pipes, valves, flanges, pipe connections, pipe joints, boilers, tanks, pumps, gaskets.
12 3D-Modelling and Product Lifecycle
• Computer Aided-Design (3D) and Drawing (2D);
• Product Lifecycle and product design;
• Tools for the Product Lifecycle Management and Development, PLM, PDM;
• 3D annotations and Product Manufacturing Information (PMI).
Core Documentation
• Nigel Cross, Engineering Design Methods: Strategies for Product Design, 4th Edition, John Willey & Sons, 2008;• T.E. French, C. J. Vierck, R. J. Foster, “GRAPHIC SCIENCE AND DESIGN”, 4th edition, McGraw Hill, 1984;
Type of evaluation
The level of student learning is assessed through two tests: a written test consisting of the execution of a mechanical drawing compliant to ISO standards for Technical Drawing, to be drawn in A4/A3 sheets; and then an oral test, consisting in exposing the topics related to mechanical drawing. With the Rectoral Decree n. 703/2020 (Prot. num. 48100), the exam will be taken in "remote", as provided in Art. 1. In particular, the learning assessment will take into account two remote tests: a preliminary written test, as provided in Art. 2 par. 3, and a final oral test to be taken in the same session. The preliminary test consists of the execution of a technical drawing. ------- Learning evaluation criteria: to successfully pass the exam, the student must demonstrate, through the tests described above, that he has well understood the basic concepts of the course and in particular that he has acquired basic skills in machine design. The assessment of the final vote takes into account the knowledge gained on all subjects of the teaching. The final mark is an average rating of the written test and the oral one. The maximum rating is given to students who demonstrate a great design ability in the written test and a thorough understanding of the contents of the teaching, methodological rigor, and the use of appropriate technical vocabulary.