Mani Maran Ratnam
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View article: Comparison of Correlation between 3D Surface Roughness and Laser Speckle Pattern for Experimental Setup Using He-Ne as Laser Source and Laser Pointer as Laser Source
Comparison of Correlation between 3D Surface Roughness and Laser Speckle Pattern for Experimental Setup Using He-Ne as Laser Source and Laser Pointer as Laser Source Open
Correlation between 3D surface roughness and characteristic features extracted from laser speckle pattern was done using an inexpensive laser pointer and a digital single lens reflex (DSLR) camera in previous research work. There had been …
View article: Correlation Study of 3D Surface Roughness of Milled Surfaces with Laser Speckle Pattern
Correlation Study of 3D Surface Roughness of Milled Surfaces with Laser Speckle Pattern Open
Current studies are focused on the correlation between characteristic features extracted from the laser speckle pattern of machined surfaces and 2D surface roughness parameters. Since milled surfaces are 3D in nature, 3D surface roughness …
View article: Effect of Vibration on Surface Roughness in Finish Turning: Simulation Study
Effect of Vibration on Surface Roughness in Finish Turning: Simulation Study Open
This paper presents the results of simulation analyses carried out to investigate the effect of adding controlled vibration of varying amplitudes and frequencies onto simulated workpiece profiles on surface roughness. The surface profiles …
View article: Scanner-Based Digital Image Correlation Method for Mechanical Characterization of Rubber
Scanner-Based Digital Image Correlation Method for Mechanical Characterization of Rubber Open
The digital image correlation (DIC) method coupled with a moveable camera has been widely used for large in-plane displacement measurement in elastomeric materials. However, this method has the limitation due to the limited field-of-view (…
View article: Study on Effect of Tool Nose Radius Wear on Hybrid Roughness Parameters during Turning Using Vision-Based Approach
Study on Effect of Tool Nose Radius Wear on Hybrid Roughness Parameters during Turning Using Vision-Based Approach Open
In the past, most researchers have investigated the effect of tool flank wear on the average roughness parameter (R a ) during turning. The R a parameter, however, is sensitive only to the height variations of the machined workiece profile…
View article: Chipping Detection in Ceramic Insert during Turning by Analysis of Workpiece Surface Profile Using Cross-Correlation
Chipping Detection in Ceramic Insert during Turning by Analysis of Workpiece Surface Profile Using Cross-Correlation Open
Chipping in ceramic cutting inserts during machining can cause detrimental effects on the surface finish quality of the workpiece. Current methods of detecting chipping in ceramic inserts do not compare the minute changes in the workpiece …
View article: Evaluation of 3D Surface Roughness of Milled Surfaces using Laser Speckle Pattern
Evaluation of 3D Surface Roughness of Milled Surfaces using Laser Speckle Pattern Open
3D surface roughness of milled aluminium surface was evaluated using the laser speckle pattern. The milled surface was produced from aluminium alloy Al 6061 material at ten different feed rates using CNC milling machine. Laser beam was dir…
View article: Simulation Approach for Surface Roughness Interval Prediction in Finish Turning
Simulation Approach for Surface Roughness Interval Prediction in Finish Turning Open
Existing simulation models used in predicting the surface roughness of a workpiece in finish turning are based on an ideal circular cutting tool nose profile.This leads to a single predicted roughness value for a given set of input paramet…
View article: Tool breakage detection from 2D workpiece profile using vision method
Tool breakage detection from 2D workpiece profile using vision method Open
In-process tool breakage monitoring can significantly save cost and prevent damages to machine tool. In this paper, a machine vision approach was employed to detect the tool fracture in commercial aluminium oxide ceramic cutting tool durin…
View article: Linear Shrinkage of the ZTA Ceramic Cutting Inserts
Linear Shrinkage of the ZTA Ceramic Cutting Inserts Open
Linear shrinkage of three types of ZTA ceramic cutting tool investigated in this research. Three types of ZTA tools fabricated in this study which are ZTA-MgO (micro), ZTA-MgO (nano) and ZTA-MgO-CeO2. Each of them were fabricated by wet mi…