Akshay, I asked your question to my colleague. Please wait same days.

With great interest with your scientific publications on the subject of research of gun drills with prepared cutting edges. Today we have an opportunity to conduct similar studies and expand our knowledge in this direction. We use the equipment of the OTEC Gmbh company DragFinishing and StreamFinishing for edge processing and MikroCAD for optical measurements. We have developments to increase the tooll life and efficiency for machining titanium. Contact me if you find this interesting.

Have a good weekend!

Hi Artyom, glad to hear your new findings. We used abrasive wheel polishing for edge preparation as our drills were long and couldn't fit in the drag finishing machine. We observed that tool life increases however there is a significant increase in thrust force and chip thickness. How much is the edge radius for your experiments? We used 8,20 and 50 micrometers. Work-piece material-Inconel718 

Hi Akshay, we used drag finishing only for taps and end mills. Gun drills are problematic to handle, but we are thinking of using the KUKA robot for synthesis with rotary finishing machines (processing in walnut shell media). It's create small pressure forces on the gun drill, which appear when drag polishing. Foro in attachment. The efficient (tool life increse) edge radius for milling titanium 6-8, for steel 12-14 micrometers. Depends on cutting conditions and tool type.

Same question from my colleague.

A sample of a single crystal?

Is orientation known? If the sample is not oriented, then an additional problem with the orientation. You need to know what kind of substance.

With what accuracy should I cut it? Is the cutting done with a saw or with an electrolyte?

yes,it's single crystal with known orientation. The plane is 111 and it is polished.   

Hi Akshay!

Excuse me, but my colleague said that she will not be able to carry out your work. I hope we can be helpful in other areas of research!

Have a nice work week.