0.8 Ra

It depends with the machining rate, but normally until Ra = 3 micrometers.

Will it possible to acquire 0.2-0.4micrometers range or less than it. if I could keep certain set of input parameters for cutting?

As my requirement is like this as much less as possible.

Could you please suggest ? on this

Hello friends,

I'm a little shocked at the answers Murugesh received.

Let's talk of  WEDM and the best Ra values. Whence such values as 0.8 µm to come; or 3 µm; or µm?

Of course I can reach such values, if I let a strong influence on surface and through lead wire EDM with pulse durations of 20 to 200 µs.

First of all it must be clarified what kind of material to be cut. The next question is what Ra values are to be achieved. Can the machining with a main section made or must be re-cuts.

With reputable WEDM equipment you should come without problems less than 1 µm (Ra) in a productive main section. Today, it is also not a problem with a main section under 0.5 microns (Ra) to come. With appropriate after cuts Ra values are 0.2 µm feasible.

Basically, we need to re-discuss with the W-EDM of hard metals and ceramics.

Best regards

Hans-Peter

Dear H.-P Schulze

Material wise "Pure Tungsten" is need to be cut.

If its possible to get at one input setting itself it could be better as its giving productivity

if its need to go multiple times like skim-cut with lower power inputs - please suggest the range of input power or parameters.

Requirement is to achieve Roughness Values less than or equal to 0.4 Micrometers.

Availability modal and input wire " Sprintcut Wire EDM E-PULSE Zinc Coated brass wire of diameter 0.25mm" its not submerged modal of EDM.

Thankyou

Regards

Pure tungsten samples we have not wire-cut, ie since the optimal parameters have to be found by you. With deionized water I would suspect that tungsten oxide forms, electrolytic effects play a role in more detail and it should be noted that wire is used.

Ra values of

What are the suggestions for achieving Ra < 0.4 microns? In order to have an inclination of  5o  over a length of 30mm path length and thickness of 50mm .

As Daniel Martinez Krahmer ·mentioned I was able to achieve 1.6 to 2microns with Ontime 1 microsecond and 46micro seconds off time.

Can I expect someone for further explanation regarding this?

hi there all

what are the average Ra values that we obtain using EDM

What is the recommended cut-off length for measuring the wire-cut machined surface? is 0.8 mm ok? With 0.8 mm cut-off length, i obtained values up to 6.0 micron. Is it normal?

The range of Roughness depends upon the machining parameters and, work materials as well as electrode wire in WEDM. You can find the suitable range as per trial runs for your work material.