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  E-ISSN 0976-3945  
  International Journal of Advanced Engineering Technology

                                                       -An Open Access Peer Reviewed e-Journal

 
 

  PREDICTION OF CUTTING TOOL VIBRATION IN HARD TURNING USING RESPONSE SURFACE METHODOLOGY

Authors: D.Manivel *, R.Gandhinathan

IJAET/ Volume VIII/ Issue I/ Jan.-March.'2017/01-05

 

ABSTRACT
In this experimental work, the prediction models have been developed to predict acceleration amplitude tool vibration in hard turning. The material used for this experiment is austempered ductile iron grade 3. On-line acceleration amplitude of tool vibration in main cutting force and radial cutting force are measured. The cutting parameters are the depth of cut, feed rate and cutting speed in three levels. The experiments are conducted as per Taguchi L9 orthogonal array. ANOVA is used to calculate significant factors affecting the tool vibration amplitude. Linear square regression is used to estimate the acceleration amplitude of tool vibration main cutting force and radial cutting force. Based on the ANOVA result, it found that cutting speed and depth of cut affecting the acceleration of tool vibration in main cutting force and radial cutting force respectively. The developed regression model was verified by confirmation experiment. The estimated and experimental values for acceleration amplitude of tool vibration in main and radial cutting force adhere very much to 14.5 % and 15 % of maximum deviations respectively.

  OPTIMIZATION OF ELECTRICAL DISCHARGE MACHINING PROCESSPARAMETERS USING TAGUCHI METHOD
 

Authors: Prof. S. S. Desai, Mr. Rahul Kumbhar, Mr. Pashant Wadhokar

 

IJAET/ Volume VIII/ Issue I/ Jan.-March.'2017/06-08

 

ABSTRACT
The objective of this research study is to investigate the optimal process parameters of Electric Discharge Machining on EN8 material with copper as a tool electrode. The effect of various process parameters on machining performance is investigated in this study. The input parameters considered are current, voltage and pulse on time are used for experimental work and their effect on Material Removal Rate. The Taguchi method is used to formulate the experimental layout on the machining characteristics and find the optimal process parameters of Electric Discharge Machining. The results of the present work reveal that proper selection of input parameters will play a significant role in Electric Discharge Machining.

  BEHAVIOUR AND PREDICTION OF FLUID FILM BEARING PRESSURE
 

Authors: Er.Sunil Tuli

IJAET/ Volume VIII/ Issue I/ Jan.-March.'2017/09-12

 

ABSTRACT
The cylindrical (plain) hydrodynamic journal bearing is the most basic hydrodynamic bearing with cylindrical bore plays a vital role in design and stable operation of rotating machinery. For stable operation of machinery a proper understanding of the behaviour of hydrodynamic journal bearing is needed. The main objective of the current work is to make numerical analysis of a fluid film journal bearing system for predicting fluid film pressure distribution at various eccentricities by incorporating ADI technique and developing a computer code in Fortran 90 for pressure prediction. In order to compute the fluid film pressure for fluid film journal bearing system the two dimensional Reynolds equation is solved numerically using FDM. In order to accomplish the numerical study, a computer code developed in Fortran 90 using Salford compiler has been used. The code developed using various algorithms is required to be debugged for accuracy at several steps. This optimum grid size is selected for the present study for computation of pressure distribution and fluid film thickness at various eccentricity ratios.