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Course detail
FSI-HE1Acad. year: 2024/2025
The course deals with the basic methods of measuring and evaluating the side-effects of machining and metal-forming. They include mechanical testing, qualitative and quantitative evaluation of wear, measuring of cutting forces and resistance, metal-forming and ejecting forces, resistance to plastic strain, strain rates, temperature & heat, and oscillation. The evaluation is dealt with the viewpoint of individual methods of machining and metal-forming and the operating conditions of the tool. Applications of the methods of light and electron microscopy when evaluating the morphology of the surface of tools and workpieces are discussed too.
Language of instruction
Number of ECTS credits
Mode of study
Guarantor
Department
Entry knowledge
Rules for evaluation and completion of the course
Aims
Study aids
http://ust.fme.vutbr.cz/tvareni/studium/index.php?stranka=opory and E-learning
Prerequisites and corequisites
Basic literature
Recommended reading
Elearning
Classification of course in study plans
specialization STG , 2 year of study, winter semester, compulsory
specialization CZS , 1 year of study, winter semester, elective
Lecture
Teacher / Lecturer
Syllabus
Oscillation (principles, experimental devices, sensors, signal processing instruments)
Cutting forces and resistances (dynamometers, measurement and evaluation of parameters, data processing)
Tool wear (criteria, measuring methods and equipment, processing of measured values), comprehensive assessment of cutting tool properties
Microscopic methods (analysis of the surface morphology of the tool and workpiece using scanning electron microscopy - SEM)
Heat and temperature, measurement of high-speed processes (measurement methods, sensing instruments, data processing)
Demonstration of practical application of experimental methods in industrial practice
Experimental technological tests of bulk formability
Tests for determining friction coefficients and the influence of lubricants in forming
Experimental determination of material mechanical properties under dynamic loading conditions
Measurement of forming forces, determination of stress at higher strain rates
Determination of forming resistances at higher strain rates
Experimental validation of dynamic processes using numerical simulation
Laboratory exercise
1.Measuring the tool wear in the course of operation, data evaluation2.Establishing the tool life/cutting speed dependence from the wear values3.Analysis of cutting properties of drills4.Analysis of cutting properties of milling cutters5.Establishing the torque when cutting the thread with a nut tap6.Analysis of energetic and thermal phenomena in grinding7.Analysis of properties of processing liquids8.Complex upsetting test, evaluation of the resistance to deformation, deformation work, and rate of deformation9.Establishing the wear coefficient during the metal-forming process10.Evaluation of strain by the macro-network method11.Establishing the impact forces and stress in the Taylor test12.Conducting the Taylor test on an air gun and evaluating the test13.Establishing the dynamic-mechanical properties of materials by the method of Hopkinson bar test