Detection of the Development of Chatter in End Mil

Detection of the Development of Chatter in End Milling Operations by Using Index Based Reasoning (IBR) : 

Detection of the Development of Chatter in End Milling Operations by Using Index Based Reasoning (IBR) K. Bickraj Florida International University, Department of Mechanical and Materials Engineering, 10555 W. Flagler M.Demetgul Marmara University, Technical Education Faculty, Goztepe, Istanbul, Turkey I.N. Tansel Florida International University, Department of Mechanical and Materials Engineering, 10555 W. Flagler B. Kaya Department of Design and Manufacturing EngineeringGebze Institute of Technology, Gebze, Kocaeli, Turkey B. Ozcelik Department of Design and Manufacturing EngineeringGebze Institute of Technology, Gebze, Kocaeli, Turkey

Introduction : 

Introduction The basic (top) and general purpose (bottom) Index Based Reasoner (IBR)

Previous Studies : 

Previous Studies Analysis of Chatter Damage with S Transformation

Previous Studies : 

Previous Studies Inspection of Chatter Damage by Using Wavelet Transformations

Block diagram of a simulated IBR for chatter monitoring : 

Block diagram of a simulated IBR for chatter monitoring

Experimental Setup : 

Experimental Setup

Picture of Chatter : 

Picture of Chatter

Cutting torque time series containing excessive vibrations : 

Cutting torque time series containing excessive vibrations

Cutting force time series containing excessive vibrations : 

Cutting force time series containing excessive vibrations

Health index values that capture excessive chatter : 

Health index values that capture excessive chatter

CONCLUSION : 

CONCLUSION Use of IBR was proposed for detection of chatter in milling operations. The IBR simulator was established by using the MATLAB. The main advantage of the IBR is letting the engineers to develop the system by assigning numbers to different levels of the sensory signals. Objective is to program microcontrollers from this program. Once, the IBR is developed it may be emulated either using MATLAB or its own simulator. The feasibility of the proposed method was investigated on the data of end milling operation. The HI indicated chatter by raising the value of the HI when the vibrations reach to severe levels.

Slide 12: 

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