Course detail

Theory of Machining

FSI-HTO-KAcad. year: 2014/2015

The course familiarises students with chip removing processes including side effects of deformation processes. The processes of individual types of machining are analyzed from the viewpoint of the mutual action of the cutting tool and the workpiece in order to clarify the relations between the cutting process and economic indicators. Acquired theoretical knowledge can be applied to optimize the cutting process.

Language of instruction

Czech

Number of ECTS credits

6

Mode of study

Not applicable.

Guarantor

doc. Ing. Josef Chladil, CSc.

Department

Institute of Manufacturing Technology (ÚST)

Learning outcomes of the course unit

The subject familiarises students with the theory of deformation processes while cutting technical materials with various cutting tools. Also dealt with is their experimental evaluation.

Prerequisites

Basics of machining

Co-requisites

Not applicable.

Planned learning activities and teaching methods

The course is taught through lectures explaining the basic principles and theory of the discipline. Teaching is suplemented by practical laboratory work.

Assesment methods and criteria linked to learning outcomes

Course-unit credit is awarded on condition of having attended the practicals and worked out individual assignments. Exam has a written and an oral part.

Course curriculum

Not applicable.

Work placements

Not applicable.

Aims

The aim of the course is to provide students with basic knowledge from chip forming processes, evaluation of cutting process experiments and individual relations of cutting processes. In the area of cutting tools students will be made familiar with the designation of cutting planes and cutting angles of one- and multi-edge tools and with their graphical and analytic relations.

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

Individual assignments and result checking

Recommended optional programme components

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

Chladil,J.-Humar,A.: Teorie obrabeni - priklady a cviceni, VUT Brno, 1991
Chladil,J.-Mouka,E.: Teorie obrabeni, VUT Brno, 1989
SANDVIK: Modern Metal Cutting, 1998
Shaw M.C. Metal Cutting Principles, Clarendon Press, Oxford, 1984

Recommended reading

Humar,A.: SK a rezna keramika pro obrabeni, Šumperk, 2001
Pramet Sumperk: Prirucka obrabeni, Šumperk, 2002

Classification of course in study plans

  • Programme N2301-2 Master's

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

Type of course unit

 

Guided consultation

9 hod., optionally

Teacher / Lecturer

doc. Ing. Josef Chladil, CSc.

Syllabus

Classification of machining methods, mechanism of orthogonal cutting Plastic deformation in front of cutting edge, theory of chip formation Side-effects connected with chip forming, dynamics of cutting process Cutting forces and relations, specific cutting resistance
Experimental dependences for particular methods of machining
Cutting energy
Warmth and temperature occurring during cutting process, factors influencing generation and distribution of warmth at chip forming area
Regularity of cutting tool wear, wear forms
Influence of cutting conditions to edge wear process
Durability and life of cutting tool, edge wear criterion, dependence of durability on cutting conditions
Effective durability from view point of productivity and costs
Machinability of materials, types of machinability, methods for machinability estimation and material sorting into machinability classes
Optimisation of cutting conditions, methodology of cutting conditions optimization determination during rough cutting and finishing

Laboratory exercise

9 hod., compulsory

Teacher / Lecturer

doc. Ing. Josef Chladil, CSc.

Syllabus

Plastic deformation, chip compression, shear plane
Dynamics of cutting process, cutting forces, specific cutting resistance
Experimental dependences for particular methods of machining
Cutting energy
Warmth and temperature occurring during cutting process, distribution of warmth at chip forming area
Cutting tool wear, wear forms
Influence of cutting conditions to edge wear process
Durability and life of cutting tool, dependence of durability on cutting conditions
Effective durability from view point of productivity and costs
Machinability of materials, types of machinability, methods for machinability estimation
Material sorting into machinability classes
Optimisation of cutting conditions, determination of cutting condition optimization during rough cutting
Determination of cutting condition optimization during finishing