Lathe stability charts via acoustic emission monitoring

Keraita, JN; Oyango, HJ; Misoi, GK

doi:10.4314/ajst.v2i2.44675

Cited by 4 publications

(4 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…При этом считается, что между работой на пластическую деформацию и энергией АЭ также существует прямо пропорциональная связь. Такой подход использован в работах [10][11][12] для описания закономерности изменения среднеквадратического значения амплитуды (СКЗ) сигнала АЭ при резании материалов. Однако значительное количество исследований показывают отличие или не значительную согласованность экспериментальных закономерностей изменения СКЗ амплитуды сигнала АЭ с теоретической при действии различных факторов -скорости резания и скорости продольной подачи резца, глубины резания и других.…”

Section: анализ литературных данных и постановка проблемыunclassified

Infuencing processed composite material priperties on acoustic emission

Filonenko

2015

EEJET

View full text Add to dashboard Cite

Проведено моделювання сигналів акустичної емісії при механічній обробці в залежності від властивостей поверхневого прошарку композиційного матеріалу, що руйнується, для механічної моделі акустичного випромінювання. Показано, що зростання значення параметру, який визначається властивостями матеріалу, приводить до падіння амплітудних характеристик акустичної емісії. Визначено, що найбільше падіння має дисперсія середнього рівня амплітуди сигналу акустичної емісії Ключові слова: акустична емісія, композиційний матеріал, сигнал, амплітуда, механічна обробка, площа руйнування Проведено моделирование сигналов акустической эмиссии при механической обработке в зависимости от свойств разрушаемого поверхностного слоя композиционного материала для механической модели акустического излучения. Показано, что возрастание значения параметра, определяемого свойствами материала, приводит к падению амплитудных характеристик акустической эмиссии. Определено, что наибольшее падение имеет дисперсия среднего уровня амплитуды сигнала акустической эмиссии Ключевые слова: акустическая эмиссия, композиционный материал, сигнал, амплитуда, механическая обработка, площадь разрушения

show abstract

Section: анализ литературных данных и постановка проблемыunclassified

Infuencing processed composite material priperties on acoustic emission

Filonenko

2015

EEJET

View full text Add to dashboard Cite

show abstract

“…The purpose of their research was to demonstrate a systematic procedure of using Taguchi parameter design in process control of individual milling machines and also to demonstrate a use of the Taguchi parameter design in order to identify the optimum surface roughness performance with a particular combination of cutting parameters in an end-milling operation [3]. Signal parameters characterizing Acoustic Emission (AE) detected during metal cutting have been theoretically correlated in a simple manner, to the work material properties, cutting conditions, and tool geometry [4]. The vibration of a tool-workpiece system in a straight turning process is induced by random disturbances and their effect on a product surface.…”

Section: Introductionmentioning

confidence: 99%

Design and development of two degree of freedom model with PID controller for turning operation

Prabhu¹,

Prathipa²,

Shanmugasundaram³

2016

J. meas. eng.

View full text Add to dashboard Cite

Abstract. The objective is to develop a two degree of freedom model with PID controller for turning process to reduce regenerative chatter with the aim of improving productivity, quality of surface finish, tool life and reducing environmental noise caused by chatter. A system model consists of a workpiece subsystem and a cutting tool subsystem. The workpiece subsystem consists of mass, stiffness and damper. The cutting tool subsystem consists of mass, stiffness and damper. A Piezo actuator and sensor was embedded into the tool holder. A Mechatronic system has been proposed and developed for reducing tool vibration in lathe tool during machining. It consists of electrical and mechanical components; the controller is designed to control the chatter that occurs between the tool and the workpiece. The controller is used to send a feedback to the actuator. The controller is designed so that it suppresses the settling time and dampens the tool. The effective cutting stiffness and effective cutting damping are modeled as a spring and damper during machining. The original response of the system is modeled using transfer function method. Their output responses were obtained using Mat lab software.

show abstract

“…Thus, the choice of optimized cutting parameters becomes very important to control the required surface quality. [ 12] The aim of this research is to investigate the effects of cutting tool vibration on the resulting surface roughness in the dry turning operation of medium carbon steel. To achieve such objective, the research should have completed a fractional experimental design that allows considering a different level interactions between the cutting parameters (cutting speed, feed rate, depth of cut and tool length) on the MPa, hardness = 168 HB30, and 0.35%C); Turning Machine, high-speed steel (HSS-718, F10 type), cutting tool used the dimension (8x8x12.5mm) type (HSS-718) with the following angles.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Cutting Tool Vibration on Surface Roughness of Workpiece in Dry Turning Operation

afeen,

Younis

2007

ETJ

View full text Add to dashboard Cite

This study is to find a correlation between surface roughness and cutting tool vibration in turning. The ranges of process cutting parameters in the present study are limited: cutting speed (34, 70, 130 m/min), depth of cut (0.1, 0.2mm), feed rate (0.07, 0.13, 0.17mm/rev) and tool overhanging (25, 30, 35, 40mm). The data are generated by lathe dry turning of medium carbon steel samples at different levels of the mentioned above parameters. Dry cutting tests (without using cutting fluid) are conducted to simulate a good turning, the dry turning provided a clean environment to obtain undisturbed clear cutting vibration, which results in more accurate and clear correlation between cutting vibrations and roughness. The analysis of variance reveale in this study is that the best surface roughness condition is achieved at a low (feed rate less and equal 0.13mm/rev), and with smaller tool overhang less and equal 30mm). The results also show that the cutting speed has small effect on surface roughness than feed rate and tool overhang. The depth of cut has not a significant effect on surface roughness in this study.Above results can be obtained when there is no built up edge and no damage of the tool tip. Finally experimental results have shown good correlation between the cutting tool vibration and surface roughness which can be used to control the finish surface of the workpieces during the mass production.

show abstract

Lathe stability charts via acoustic emission monitoring

Abstract: Signal parameters characterizing acoustic emission (AE) detected during metal

Cited by 4 publications

References 12 publications

Infuencing processed composite material priperties on acoustic emission

Infuencing processed composite material priperties on acoustic emission

Design and development of two degree of freedom model with PID controller for turning operation

The Effect of Cutting Tool Vibration on Surface Roughness of Workpiece in Dry Turning Operation

Contact Info

Product

Resources

About