Course detail

Technology of CNC Machining

FSI-HNC-AAcad. year: 2023/2024

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 810D/Heidenhain iTNC530 are described. Cutting tools and machining parameters. 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

Mode of study

Not applicable.

Guarantor

prof. Ing. Miroslav Píška, CSc.

Department

Institute of Manufacturing Technology (ÚST)

Offered to foreign students

The home faculty only

Entry knowledge

Successful completion of the courses “Production Technologies II”, “Technology of Production and Computer Support of Technology”, good knowledge of fundamental methods of machining.

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.

Study aids

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

Evans, K.: Programming of Computer Numerically Machines, Industrial Press Inc. Third Ed. 2007, pp. 458, ISBN 978-0-8311-3316-0. (EN)
Grote,K.H., Antonsson,E.K : Handbook of Mechanical Engineering. Springer. 2014.Stürtz GmbH, Würzburg.p.1576 ISBN: 978-3-540-49131-6 e-ISBN: 978-3-540-30738-9 (EN)
Michael Fitzpatrick, Keith Smith: Machining and CNC Technology.  ISBN 10 1259827445, ISBN 13 978-1259827440. McGraw-Hill Education. May 2018. 4th Edition. pp. 864 (EN)
Piska, M., Cihlarova, P., Hill, M.: Fundamentals of CNC Machining. http://www.fme.vutbr.cz/opory/pdf/ust/obrCNC/Fundamentals%20of%20CNC%20Machining.pdf (EN)
Piska, M., Cihlarova, P., Hill, M.: Fundamentals of CNC Machining. http://www.fme.vutbr.cz/opory/pdf/ust/obrCNC/Fundamentals%20of%20CNC%20Machining.pdf (EN)
Kruth, J.P., Lauwers, B., Dotremont, J., Dejonghe, P. Optimised NC-toolpath generation for 5-axis machining of complex surfaces. Machining impossible shapes. Kluwer Academic Publishers, 1999, pp. 343-350, ISBN 0-412-84680-2. (EN)
Siemens AG: Návody k programování. Návod k obsluze. 4. vydání, Erlangen, SIEMENS a.s., 2000, 469 s.
Smid, P.: A Comprehensive Guide to Practical CNC Programming. Industrial Press Inc., Second Ed., 2003,pp. 506, ISBN 0-8311-3158-6 (EN)

Recommended reading

Grote,K.H., Antonsson,E.K : Handbook of Mechanical Engineering. Springer. 2014.Stürtz GmbH, Würzburg.p.1576 ISBN: 978-3-540-49131-6 e-ISBN: 978-3-540-30738-9 (EN)
Sandvik Coromant: Metal Cutting Mechanics
Schneider, G.: Cutting Tool Applications
Siemens AG: Sinumerik 810 - Fundamentals

Elearning

eLearning: currently opened course

Classification of course in study plans

  • Programme N-STG-P Master's

    specialization STM , 1 year of study, winter semester, compulsory
    specialization MTS , 1 year of study, winter semester, compulsory
    specialization STG , 1 year of study, winter semester, compulsory

  • Programme N-ENG-Z Master's 1 year of study, winter semester, recommended course

Type of course unit

 

Lecture

39 hod., optionally

Teacher / Lecturer

prof. Ing. Miroslav Píška, CSc.

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 hod., compulsory

Teacher / Lecturer

Ing. Jaromír Dvořák, Ph.D.
Ing. Štěpán Kolomý
Ing. Petra Sliwková, Ph.D.

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.

Elearning

eLearning: currently opened course