Course detail
Machine Design
FSI-2K-A Acad. year: 2019/2020 Summer semester
The aim of the course is to provide requisites of engineering (especially drawing) documentation and its requirements in terms of batch production, i. e. engineering drawings of welded, cast, forged and other parts. Emphasis is being placed on optimizing of the functional and technological dimensioning in the development of a complete engineering drawing documentation of an assembly unit (assembly drawing, part drawings and piece list). Attention is devoted to the calculations of tolerated dimensions and current trends in the creation of documentation. They are completed basic information about selected types of machine parts.
Language of instruction
English
Number of ECTS credits
3
Supervisor
Department
Learning outcomes of the course unit
The subject “Machine Design” provides students with knowledge and skills which are necessary for working out a complete drawing documentation of an assembly unit. Great emphasis is placed to ensuring function and interchangeability considering the manufacturing technology of individual parts. The students learn, when working out the drawing, how to apply the peculiarities of these elements resulting from their production seriality.
Prerequisites
Knowledge of design basics (fundamentals of drawing principles, drawing documentation, dimensioning, tolerances, principles of functional and technological dimensioning), materials science (selection of materials and its standardisation).
Planned learning activities and teaching methods
The course is taught through lectures and exercises which are focused on practical topics presented in lectures.
Assesment methods and criteria linked to learning outcomes
Terms of graded credit: attendance at seminars, elaboration of graphic projects (programs), graduation of tests and tasks. Students must complete all four terms. Final classification according to ECTS.
Aims
The aim of the course is to provide students with the creation of basic documentation of machine parts process of working out the drawing where a semi-finished product is represented by cast or forging, and to acquaint them with elaboration of drawing documentation for welded structures. Another aim is to create a complete drawing documentation of an assembly unit. The students should extend their knowledge and acquire skills necessary for creation of part drawings considering production seriality, as well as complex elaboration of the drawing documentation including basic dimensional calculations.
Specification of controlled education, way of implementation and compensation for absences
Attendance at seminars is mandatory and controlled. Maximum of two authorized absence without compensation of lesson are allowed.
The study programmes with the given course
Programme B3S-P: Engineering, Bachelor's
branch B-STI: Fundamentals of Mechanical Engineering, compulsory-optional
Programme B3S-A: Engineering, Bachelor's
branch B-STI: Fundamentals of Mechanical Engineering, compulsory
Type of course unit
Lecture
13 hours, optionally
Teacher / Lecturer
Syllabus
1. Principle of casting production. Drawing documentation of cast components. Element drawing when the half-finished product is casting.
2. Technological design of casting. Tolerances and deviations in dimensional circuits. Full interchangeability method.
3. Dimensional circuits – compensation method. Methods of statistical and group interchangeability.
4. Welded parts and their drawing documentation.
5. Technological requirements and technological design of welded parts. Materials for welding technolog
6. Toothed gears – basic calculation. Dimensioning and accuracy of gears and sprockets. Pulleys.
7. Overview of drawing documentation of moulded parts. Technological design of forgings.
8. Drawing documentation of flat-formed parts. Soldered, glued and riveted joints.
9. Requirements for documentation of plastic products.
10. Modern trends in design documentation and documentation without drawings. 3D printing.
11. Algorithm of construction process. Overview of requirements for technical documentation, list of items and technical report.
12. Selected chapters from area of machine elements. Drives and springs in terms of documentation.
13. Mechanical couplings and basic mechanisms – overview and documentation.
Computer-assisted exercise
26 hours, compulsory
Teacher / Lecturer
Syllabus
1. Application of geometric tolerances.
2. Drawing documentation of cast components. Assignment of 1st program (P1). Proposal for moulding of the casting (P1).
3. Tolerances and deviations in dimension chains – method of full interchangeability – examples. Consultation P1. Entering the work assignement (PU) – dimensional circuits.
4. Tolerances and deviations in dimension chains – compensation method – examples. Consultation P1. Assignment of 2nd program (P2) – weldment.
5. Drawing of weldment for welding and machining, drawings of weldment parts. Delivery of P1. Consultation P2.
6. Assembly drawing, list of parts, technical report – basic rules for P2. Evaluation of P1. Consultations P2.
7. Dimensioning and accuracy of gears. Toothed gears. Preliminary calculation. Consultation of P2. Entering the 3rd program (P3) – gearing.
8. Control test No. I. Submission P2 – Welding. Consultations.
9. Evaluation of control test I and programme P2. Consultation P3. Submission of PU. Introduction to documentation of volume formed parts.
10. Drawing documentation of flat formed parts – examples. Delivery of P3. Evaluation of PU.
11. Knowledge test No. 2 (elaboration of a drawing of machine part during the lesson).
12. Evaluation of P3. Evaluation of the control test II. Overall evaluation of the submitted works. Corrections of programs.
13. Check of programs and compositions completeness. Graded course-unit credits.