Course detail

Machining and Forming Theory and Tools

FSI-GTNAcad. year: 2023/2024

The course is divided into two parts: theory of machining plus tools, and theory of metal forming plus tools. In the first part, students gain the basic knowledge in the area of taking chips, machining methods and experimentally established relations in the theory of machining. The principles of designing cutting tools are discussed, as well as the optimization of the cutting process, the choice of cutting materials and their effect on the durability and service life of tools. In the second part the students acquire the basic knowledge of and skills in mathematically describing metal-forming processes while applying the physical, chemical, mechanical and thermodynamic principles of the transition of metallic bodies from elastic into plastic state in the course of their plastic deformation into the required shape. Within this subject the loading of the metal-forming tools is dealt with and provisions are made for a first design of the forming machine.

Language of instruction

Czech

Number of ECTS credits

4

Mode of study

Not applicable.

Guarantor

prof. Ing. Milan Forejt, CSc.

Department

Institute of Manufacturing Technology (ÚST)

Entry knowledge

Successful completion of the course is conditional on the knowledge of applied mathematics and physics, materials science, elasticity, strength, and plasticity, and a grasp of the machining and metal-forming technologies.

Rules for evaluation and completion of the course

Conditions of awarding the course-unit credit: participation in exercises, working out the reports set, acceptance of the reports. In justified cases the teacher may set a make-up exercise program. The examination is public, testing the knowledge from both parts of the course, focused on machining and metal-forming.
The exam will have written preparation and oral part. It is classificated to the ECTS grading scale.

Attendance in lectures is recommended.
Attendance in exercises is compulsory.
The attendance to the seminar is regularly checked and the participation in the lesson is recorded.
Absence from laboratory exercises is compensated during course for via make-up topics of exercises and consultations.

Aims

The objective of the course is for students to master the methods of setting up a computation model necessary for an engineering design of machining technology and metal-forming technology
The knowledge gained enables proposing a technological process of machining or metal-forming, together with the first design and determination of the dimensions of machining or metal-forming tools and the selection of necessary machines.

Study aids

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

BEŇO, Jozef. Teória rezania kovov. Košice: Vienala, 1999, 256 s. ISBN 80-709-9429-0. (SK)
DAVIS, Joseph R. a Steven R.LAMPMAN. Machining. 9. ed. Metals Park, Ohio: American Society for Metals, 1989. ISBN 08-717-0022-0. (EN)
HUMÁR, Anton. Slinuté karbidy a řezná keramika pro obrábění. 1.vyd. Brno: CCB s.r.o. 1995. 266 s. ISBN 80-85825-10-4. (CS)
LANGE, Kurt. Handbook of Metal Forming. New York: McGraw-Hill, c 1985.ISBN 0-07-036285-8 (EN)
MIELNIK, Edward M. Metalworking science and engineering. New York: McGraw-Hill, c1991, 976 p. McGraw-Hill. ISBN 0-704-1904-3. (EN)

Recommended reading

FOREJT, Milan a Miroslav PÍŠKA. Teorie obrábění, tváření a nástroje. Brno: A N CERM, 2006. 226 s. ISBN 80-214-2374-9. ( dotisk 2008, 2012, 2015, 2018) (CS)
FOREJT, Milan. Teorie tváření a nástroje: Učeb. texty. 1.vyd. Brno: Nakl. VUT, 1991, 187 s. ISBN 80-214-0294-6. (CS)
CHLADIL, Jan a Anton HUMÁR. Teorie obrábění-příklady a cvičení. 1.vyd. Brno: Nakladatelství VUT. 1991. (CS)

Classification of course in study plans

  • Programme N-VSR-P Master's 1 year of study, summer semester, compulsory-optional

Type of course unit

 

Lecture

26 hod., optionally

Teacher / Lecturer

prof. Ing. Milan Forejt, CSc.

Syllabus

1. Fundamentals of depicting cutting tools.
2. Physical and technological parameters of the cutting process.
3. Mechanism of chip taking, phenomena accompanying the deformation process.
4. Dynamics of the cutting process, force relations for machining methods.
5. Cutting materials and their application.
6. Durability and service life of cutting tools. Optimization of the cutting process.
7. Physical substance of plastic deformation.
8. Formability of metals and alloys. Resistance to deformation.
9. Conditions of the appearance of plastic deformation. Principles of metal-forming.
10. Theory of plastic deformation. Analysis of the deformation process.
11. Methods for solving metal-forming processes.
12. Basic operations of the solid cold and hot metal forming.
13. Basic operations of sheet metal forming.

Exercise

26 hod., compulsory

Teacher / Lecturer

prof. Ing. Milan Forejt, CSc.

Syllabus

1. Geometry of the tool edge.
2.Evaluation of experimental dependence relations.
3.Cutting forces, torques and performance in machining.
4.Practical and direct measuring of cutting forces.
5.Calculation of temperature parameters in machining.
6.Establishing the dependence of tool durability on cutting speed. 7.Evaluating the deformation parameters and deformation rates. 8.Evaluating the curves of resistance to deformation.
9.Calculating the resistance to deformation and deformation forces in upsetting.
10.State of stress and forces acting in forward extrusion.
11.Die forging, calculation of forging forces.
12.State of stress, forces and number of drawing operations.
13.State of stress and forces in current and precise shearing.