346-5002/01 – Theory of Machining (TO)

Gurantor departmentDepartment of Machining, Assembly and Engineering MetrologyCredits6
Subject guarantorprof. Ing. Robert Čep, Ph.D.Subject version guarantorprof. Ing. Robert Čep, Ph.D.
Study levelundergraduate or graduateRequirementCompulsory
Year1Semesterwinter
Study languageCzech
Year of introduction2019/2020Year of cancellation
Intended for the facultiesFSIntended for study typesFollow-up Master
Instruction secured by
LoginNameTuitorTeacher giving lectures
CEP77 prof. Ing. Robert Čep, Ph.D.
KRA49 Ing. Jiří Kratochvíl, Ph.D.
PAG016 Ing. Marek Pagáč, Ph.D.
SAD76 doc. Ing. Marek Sadílek, Ph.D.
Extent of instruction for forms of study
Form of studyWay of compl.Extent
Full-time Credit and Examination 3+3
Part-time Credit and Examination 26+0

Subject aims expressed by acquired skills and competences

Students will be familiarized with the theory of machining. This subject includes an analysis study of chip forming, of power ratios, of cutting process stability, of thermal effects, of the wear edge of tools, of durability, tool life of materials, and of the optimisation of cutting process.

Teaching methods

Lectures
Tutorials

Summary

The theory includes an analysis of cutting mechanism study the formation of chips dynamic cutting process and the associated stability assessment of cutting process. This subject includes the bases of integreated machining, too.

Compulsory literature:

ČEP, Robert; SADÍLEK, Marek. Technology of Machining and CAM Systems. Ostrava : Ediční středisko VŠB – TU Ostrava, 2011, 122 s. STEPHENSON, D. A.; AGAPIOU. J. S. Metal cutting theory and practice. New York : Marcel Dekker, Inc., 1997. ISBN 0–8247–9579–2. SHAW, Milton C. Metal Cutting Principles. 2nd edition. New York : Oxford University Press, 2005. 651. p. ISBN 0–19–514206–3.

Recommended literature:

SANDVIK Coromant, Technical Editorial Deartment. Modern Metal Cutting – A Practical Handbook. Tofrers Tryckery AB, Sweden, 1994, 927 p. ISBN 91-972290-0-3. KALPAKJIAN, Serope. Manufacturing Engineering and Technology. Third Edition. Addison – Wesley Publishing Company, Reading, Massachusetts, 1995, 1239 p. ISBN 0-201-84552-0.

Way of continuous check of knowledge in the course of semester

Pass conditions: •Submission of semestral project. •2 tests. •Absence max. 20%. Scoring: Credit: Semestral project max. 15 points Test 1 max. 10 points Test 2 max. 10 points Subtotal max. 35 points Exam: Written part (test) max. 40 points Oral part (1 question) max. 25 points Subtotal max. 65 points Total for credit and exam max. 100 points

E-learning

Další požadavky na studenta

Active participation on lectures and measurings.

Prerequisities

Subject has no prerequisities.

Co-requisities

Subject has no co-requisities.

Subject syllabus:

1. Basic concepts, technological system, workpiece, tool, instrument geometry, process and cutting methods. 2. Mechanism and scheme of chip formation, stress and deformation conditions before cutting wedge, deformation in the cutting zone, types and classification of chips 3. Strength and cutting resistance of cutting, work and machining performance, calculation of cutting forces 4. Wear cutting edge wear, wear mechanisms and types, wear criteria, tool life and durability 5. Taylor\'s relationship, methods of detecting T-vc dependencies 6. Heat and cutting temperature, temperature field, heat dissipation, heat balance and machining demands 7. Stability of the cutting process, self, forced and self-induced oscillation 8. Machinability and cutting, distribution, long-term and short-term tests, obturation norms 9. Integrity of machined surface, dimensional and shape accuracy of the part, macro and microscopic surface assessment 10. Machined surface integrity, surface layer characteristics, surface roughness, residual stress on the machined surface, experimental assessment of machined surface 11. Optimization of cutting conditions 1. (according to machine performance and torque, with regard to the strength of the tool and chip formation, according to the precision and quality of the machined surface, according to machinability, cutting and environment 12. Optimization of cutting conditions 2. (areas of permissible solutions, procedure for determining optimal cutting conditions, calculation of optimum edge durability, view of maximum production and minimum cost, adaptive optimization) 13. Theory of high-speed machining 14. Reliability, diagnostics and monitoring of the cutting process

Conditions for subject completion

Part-time form (validity from: 2019/2020 Winter semester)
Task nameType of taskMax. number of points
(act. for subtasks)
Min. number of points
Credit and Examination Credit and Examination 100 (100) 51
        Credit Credit 40 (40) 20
                Test Written test 40  20
        Examination Examination 60 (60) 31
                Ústní část zkoušky Oral examination 60  31
Mandatory attendence parzicipation: Absence max. 20%

Show history

Occurrence in study plans

Academic yearProgrammeField of studySpec.ZaměřeníFormStudy language Tut. centreYearWSType of duty
2019/2020 (N0715A270007) Mechanical Engineering Technology P Czech Ostrava 1 Compulsory study plan
2019/2020 (N0715A270007) Mechanical Engineering Technology K Czech Ostrava 1 Compulsory study plan

Occurrence in special blocks

Block nameAcademic yearForm of studyStudy language YearWSType of blockBlock owner