Metal Cutting, Advanced Course
Skärande bearbetning, fortsättningskurs

MMT220F, 7.5 credits

Valid from: Autumn 2013
Decided by: FN3/Per Tunestål
Date of establishment: 2013-11-01

General Information

Division: Productions and Materials Engineering
Course type: Course given jointly for second and third cycle
The course is also given at second-cycle level with course code: MMT220
Teaching languages: English, Swedish

Aim

To achieve a more thorough understanding and competence in the field of metal cutting. The achieved knowledge should also result in a possibility for an active participation in research and development within the field of machining.

Goals

Knowledge and Understanding

For a passing grade the doctoral student must

• be able to describe and discuss fundamental metal cutting theory.
• be able to analyse and describe the interaction between the mechanical, thermal and tribological loads on the cutting tool.
• be able to show an understanding for basic calculations regarding the interaction between load ratio, cutting tool material and cutting tool geometry.
• be able to, in general, analyse a cutting process and direct efforts of development for cutting tool and work piece material in order to achieve an improved quality or a reduced machining cost.
• be able to show an understanding of the existing principles for the measuring of e.g. static and dynamic cutting forces and cutting tool movements.
• be able to show an understanding of today’s research areas regarding metal cutting.

Competences and Skills

For a passing grade the doctoral student must be able to develop cutting tests for specific purposes such as evaluation of wear resistance, plastic deformation and deterioration behaviour of cutting tools or estimate the machinability of a work piece material in one or more applications.

Course Contents

A large part of the course is carried out with computer tools, such as MathCad, for the simulation of the metal cutting process. The compulsory written assignments contain experimental elements. The course includes the following: The Production Reliability concept and the application on metal cutting. Basic metal cutting considerations. Tool deterioration and consequences. Modelling of mechanical loads, cutting resistance, load relation functions, load variation functions etc. Comparison of material properties. Thermal analysis and modelling of the cutting process. Stress calculations and stress analysis on cutting edges. Work material structures and machinability. Tool deterioration, tool wear and wear models, cracking, fracture and plastic deformation. Testing of cutting tools and tool properties, tool characteristics. Multi-tooth cutting processes, load interference and load interaction. Measurement of cutting forces and development of cutting force sensors. Process dynamics, segmentation etc. Vibrations and instability, process damping and the relation to tool geometry. Micro geometries and dynamics. Active tool damping and control.

Course Literature

Ståhl, J.: Metal Cutting, Theories and models. SECO TOOLS, 2012.

Instruction Details

Types of instruction: Lectures, laboratory exercises, exercises

Examination Details

Examination formats: Written exam, written assignments
Grading scale: Failed, pass
Examiner:

Admission Details

Assumed prior knowledge: MMT031 Production Technology or corresponding course.

Course Occasion Information

Contact and Other Information

Course coordinators:
Web page: www.iprod.lth.se