Jithin Sundaresan

9 Questions 13 Answers 0 Followers

Questions related from Jithin Sundaresan

Is there any opensource software for measurement of areal texture parameters on output files of optical profilometers?

I have scanned some of my experimental surfaces using Zeta and Alicona optical profilometers. Is there any opensource software to perform measurement of areal texture parameters on the output...

13 December 2019 1,300 12 View

What are the probable reasons for sparks not occurring in electro chemical discharge machining setup(ECDM)?

I was trying to develop an ECDM setup with following specifications: Cathode: Copper of 1mm diameter Anode: Graphite plate 16x16x5 mm3 Workpiece: Glass (quartz) Cathode to anode separation: 30...

13 April 2016 9,612 6 View

Why do surfaces machined with EDM show slight reduction in roughness value with increase in pulse on time value above 200 µs?

It was seen from experiments that surface roughness values start slight reduction with increase in pulse on time values above 200 µs. While for pulse on time values below 200 µs, it is...

19 February 2016 539 3 View

How does crater dimensions vary with variation in pulse on-time from 1 µs to 1000 µs, keeping other parameters constant?

After an initial increase till a value around 100 µs, does crater dimension remains almost constant or show slight reduction? If so, what is the reason behind it?

18 February 2016 8,659 5 View

At what % of theoretical energy (U*I) does majority of sparks occur during normal EDM operation?

U*I is the theoretical energy input for sparks out of which a fraction Fc goes to cathode side. Now, in reality not all sparks occur at U*I of input energy, but at a fraction of the same, say x....

15 October 2015 942 1 View

How is the value of input heat flux calculated for a single spark during EDM operation with point heat source assumption?

I would like to know how heat flux is calculated as per above conditions for both time dependent and time independent cases.

27 February 2015 9,051 4 View

Is there any liquid in which machined copper could be submerged to prevent oxidation?

I'm facing copper rods to be used as electrodes in electrical discharge machining. I want to prevent any oxide layer formation on the copper electrode surface between time of facing the electrodes...

09 February 2015 6,931 7 View

Does galvanized or chromium-coated steel plate rust in deionized water? What sort of a coating can prolong rusting of the steel plate?

A steel plate needs to be immersed in de-ionized water in a tank for prolonged periods. Would like to know what sort of coating on steel could prolong rusting of the surface.

19 January 2015 2,405 5 View

What is the surface texture requirement, in terms of quantitative parameters like Ra, for orthopedic implants for proper osteo-integration with bone?

I'm trying to machine orthopedic implants using EDM to satisfy the surface texture requirements. I would like to know the roughness range in microns required for such a surface. Also, if there is...

25 September 2014 8,986 8 View