Deepak Mehra | IIT Roorkee (original) (raw)
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Papers by Deepak Mehra
Industrial Lubrication and Tribology, 2018
Purpose The purpose of this study is to increase the wear resistance of Mg alloy by adding hard c... more Purpose The purpose of this study is to increase the wear resistance of Mg alloy by adding hard ceramic particles to it. The inclusion of hard ceramic particles further strengthen the Mg alloy, resulting in higher wear resistance. Mg alloys containing Zn, rare earth and Zr exhibit high specific strength and excellent creep resistance, making them suitable for aerospace components such as aircraft gearboxes and generator housings. Design/methodology/approach In the present study, composites have been produced in situ by using RZ5 mg alloy as matrix and TiC as reinforcement by self-propagating high-temperature synthesis technique. The abrasive wear behavior of RZ5 Mg alloy matrix reinforced with TiC particulates has also been examined. The pin-on-disc apparatus has been used for the tests. The abrasive paper is used as a counter body, and the results are obtained by changing sliding distance and applied load. Findings A notable enhancement in the wear resistance and mechanical propert...
The keyword for manufacturers of cutting tools and coatings for cutting tools is productivity: a ... more The keyword for manufacturers of cutting tools and coatings for cutting tools is productivity: a
30% reduction of tool costs, or a 50% increase in tool lifetime results only in a 1% reduction of
manufacturing costs. But an increase in cutting data by 20% reduces manufacturing costs by 15%.
In order to achieve higher productivity different approaches – High Performance Cutting (HPC)
and High Speed Cutting (HSC) can be chosen. The performance of Carbide tools was studied to
investigate the tool life and wear behavior at various machining parameters. This study presents
tool wear characterization of carbide cutting tool inserts coated with titanium nitride (TiN) on a
single point turning operation on copper, aluminum. A set of experiments with conditions of
cutting speed, depth of cut and feed rate were performed on a lathe machine. Force analysis is
done on Lathe Tool Dynamometer. From the result, cutting speed was found to be the main factor
to have significant effect on surface roughness. At the end of this study, optimization was made by
suggesting the most suitable sets of parameter settings to produce minimum surface roughness.
Suggestion on parameter settings to obtain minimum surface roughness made.
Keywords: TiN; Lathe tool dynamometer; Tungsten Carbide, Coated Tip
Industrial Lubrication and Tribology, 2018
Purpose The purpose of this study is to increase the wear resistance of Mg alloy by adding hard c... more Purpose The purpose of this study is to increase the wear resistance of Mg alloy by adding hard ceramic particles to it. The inclusion of hard ceramic particles further strengthen the Mg alloy, resulting in higher wear resistance. Mg alloys containing Zn, rare earth and Zr exhibit high specific strength and excellent creep resistance, making them suitable for aerospace components such as aircraft gearboxes and generator housings. Design/methodology/approach In the present study, composites have been produced in situ by using RZ5 mg alloy as matrix and TiC as reinforcement by self-propagating high-temperature synthesis technique. The abrasive wear behavior of RZ5 Mg alloy matrix reinforced with TiC particulates has also been examined. The pin-on-disc apparatus has been used for the tests. The abrasive paper is used as a counter body, and the results are obtained by changing sliding distance and applied load. Findings A notable enhancement in the wear resistance and mechanical propert...
The keyword for manufacturers of cutting tools and coatings for cutting tools is productivity: a ... more The keyword for manufacturers of cutting tools and coatings for cutting tools is productivity: a
30% reduction of tool costs, or a 50% increase in tool lifetime results only in a 1% reduction of
manufacturing costs. But an increase in cutting data by 20% reduces manufacturing costs by 15%.
In order to achieve higher productivity different approaches – High Performance Cutting (HPC)
and High Speed Cutting (HSC) can be chosen. The performance of Carbide tools was studied to
investigate the tool life and wear behavior at various machining parameters. This study presents
tool wear characterization of carbide cutting tool inserts coated with titanium nitride (TiN) on a
single point turning operation on copper, aluminum. A set of experiments with conditions of
cutting speed, depth of cut and feed rate were performed on a lathe machine. Force analysis is
done on Lathe Tool Dynamometer. From the result, cutting speed was found to be the main factor
to have significant effect on surface roughness. At the end of this study, optimization was made by
suggesting the most suitable sets of parameter settings to produce minimum surface roughness.
Suggestion on parameter settings to obtain minimum surface roughness made.
Keywords: TiN; Lathe tool dynamometer; Tungsten Carbide, Coated Tip