Course detail

Technology of CNC Machining

FSI-HNC-AKAcad. year: 2010/2011

The course is focused on the fundamentals of CNC manufacturing production. A basic guide is provided giving the grades of cutting materials, workability of materials. Optimal selection and strategy for 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

7

Mode of study

Not applicable.

Guarantor

prof. Ing. Miroslav Píška, CSc.

Department

Institute of Manufacturing Technology (ÚST)

Learning outcomes of the course unit

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.

Prerequisites

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

Co-requisites

Not applicable.

Planned learning activities and teaching methods

Teaching methods depend on the type of course unit as specified in the article 7 of BUT Rules for Studies and Examinations.

Assesment methods and criteria linked to learning outcomes

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.

Course curriculum

Not applicable.

Work placements

Not applicable.

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.

Specification of controlled education, way of implementation and compensation for absences

The student’s own work and knowledge is assessed in practicals. 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.

Recommended optional programme components

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

Piska, M., Cihlarova, P., Hill, M.: Fundamentals of CNC Machining. http://www.fme.vutbr.cz/opory/pdf/ust/obrCNC/Fundamentals%20of%20CNC%20Machining.pdf
Piska, M., Cihlarova, P., Hill, M.: Fundamentals of CNC Machining. http://www.fme.vutbr.cz/opory/pdf/ust/obrCNC/Fundamentals%20of%20CNC%20Machining.pdf
Siemens AG: Návody k programování. Návod k obsluze. 4. vydání, Erlangen, SIEMENS a.s., 2000, 469 s.
WAGNER,F.-HÄRLE,P.-MAYER,S.-WAGNER,E. Technika a programování NC strojů. 1. vydání 1994, Praha, 88s., ISBN 80-901-657-5-3.
2. AB SANDVIK COROMANT - SANDVIK CZ s.r.o. Příručka obrábění - Kniha pro praktiky. (Přel. z: Modern Metal Sutting - A Practical Handbook. Překlad M. Kudela.), 1. vyd., Praha, Scientia, s.r.o.,1997. 857s., ed. J. Machač, J. Řasa, ISBN 91-97 22 99-4-6.

Recommended reading

Sandvik Coromant: Metal Cutting Mechanics
Schneider, G.: Cutting Tool Applications
Siemens AG: Sinumerik 810 - Fundamentals

Classification of course in study plans

  • Programme N2301-2 Master's

    branch M-STG , 1 year of study, winter semester, compulsory-optional
    branch M-STG , 1 year of study, winter semester, compulsory-optional
    branch M-STM , 1 year of study, winter semester, compulsory

Type of course unit

 

Guided consultation

13 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

13 hod., compulsory

Teacher / Lecturer

Ing. Aleš Polzer, 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.