Course detail
Technology of CNC Machining
FSI-HNC-A Acad. year: 2024/2025 Winter semester
The course is focused on the fundamentals of CNC manufacturing production. A basic guide is provided giving the grades and use of cutting materials, workability of materials. Optimal selection and strategy for CNC machining or assembling technology. Shop quality evaluation. Basic CNC technologies such as turning, milling and drilling for Sinumerik 840D/Heidenhain iTNC530 are described. Cutting tools and machining parameters. The work with measuring and touch probes, measurement of tool compensations. Time consumption and integrity of machined surfaces. Optimization of the process from the point of maximum production rate and minimum costs is solved in graphical and numerical ways.
Language of instruction
English
Number of ECTS credits
8
Supervisor
Department
Entry knowledge
Successful completion of the course Technology of machining DTB or DTB-A.
Rules for evaluation and completion of the course
Examination consists of a written and an oral part. The written part focuses on a solution using CNC programming and machine tooling and settings. The oral part tests student’s knowledge of a topic selected randomly from the concerned areas to assess depth of understanding of the studied processes.
Recommended participations in lessons. Compulsory and checked participations in exercises and labs. Obligatory full presence in all exercises. Inspection of senior professors. According to the studied topic some lessons will be practicals – carried out in the lab, and some will be focused on the theory – calculations carried out in the classroom in a seminar form. Absence from seminars should be substituted for by attending a seminar with another study group or individually by the agreement with the teacher. Lessons may be occasionally inspected by the head of the department. Assessment of student aktivity in training cources (lab/classroom).
Successful completion of two knowledge tests on the subject.
Successful defence of their written works, protocols or technical reports.
Aims
A study of modern CNC manufacturing technologies. Programming of the Sinumerik 810D/840D control system. Workshop oriented programming – ShopMill, ShopTurn. Programming of the Heidenhain iTNC530 control system. English terminology. Better job opportunities for graduates.
Students are trained in CNC programming and other aspects of NC machining. They will be able to define technological processes of manufacturing methods and be able to control systems using Sinumerik 810D/840D and Heidenhain iTNC 530.
The study programmes with the given course
Programme C-AKR-P: , Lifelong learning
specialization CZS: , elective
Programme N-STG-P: Manufacturing Technology, Master's
specialization MTS: Modern Technologies of Lighting Systems, compulsory
Programme N-STG-P: Manufacturing Technology, Master's
specialization STG: Manufacturing Technology, compulsory
Programme N-STG-P: Manufacturing Technology, Master's
specialization STM: Manufacturing Technology and Management in Industry, compulsory
Type of course unit
Lecture
39 hours, optionally
Teacher / Lecturer
Syllabus
1. Fundamentals and terminology of NC machining technology.
2. Tool materials for CNC machining.
3. Wear of cutting tools, forms and physical mechanisms.
4. Measurement of tool loading when cutting.
5. Technology of turning. Turning operations a tooling.
6. Technology of drilling. Drilling operations a tooling
7. Technology of milling. Machining operations a tooling.
8. Fundamentals of CNC programming – SINUMERIK 810D/840D. SPY 280, MCV 1210.
9. Methods of programme generation. Graphical simulation of a programme.
10. CNC machining cycles. Machining of complex curves and surfaces.
11. CNC work schedule and sequence of cutting operations, tooling and machine set up list.
12. Fundamentals of FV 25CNC/ Heidenhain iTNC 530 programming.
13. DNC programming of FV 25CNC/ Heidenhain iTNC 530.ShopMill, ShopTurn.
Laboratory exercise
39 hours, compulsory
Teacher / Lecturer
Syllabus
1. Basic descriptions of cutting machines and facilities.
2. Selection of tool materials for CNC machining.
3. Estimation of cutting conditions. Tool wear.
4. Active measurement of tool loading when cutting.
5. Technology of turning, calculations. Basic turning operations and tooling.
6. Basics of CNC programming – SINUMERIK 810D.
7. Tool management. Tool coding.Data operations. Graphical simulation of a programme.
8. Tests.
9. CNC machining cycles. Contour turning.
10.CNC work schedule. Sequence of cutting operations when machining.
11.-13.Technological and economical analysis of CNC machining operations.