NS TOOL Machining: PCDRB 3D Mirror-like Finishing

[@CATANOVA]

Polycrystalline diamond with a 5 micron stepover and 5 micron chipload. 40K on the spindle picks up the pace from the resultant low feed and stepover. A not too lengthy buff with some diamond lapping paste would convert the 'mirror-like' to full mirror where the mould could then go to work producing many thousands of parts. Could one do similar with straight or coated carbide before the edge is lost, probably but not to the same standard and hence the use of PCD inserts with such applications. Other uses for PCD are high silicon aluminium in order to resist the abrasion.

[@NatthapolVanasrivilai]

Is it possible to run a PCD cutting tool at 10,000 RPM? I know it would slow the finishing process down, but would i still be able to get such mirror finish with just 10,000 RPM?

[@nstool_intl]

We have never machined at 10000 rpm before. Depending on how you use it, you may get satisfactory results, but we usually recommend 30,000 rpm or more. Cutting conditions are important, but the environment such as temperature in work place and equipment for tool holder, coolant system, or so are also important.

[@Michal_Sobierajski]

Higher Vc = better surface finish

[@CSGhostAnimation]

So shiny

[@littleshopofrandom685]

Do you think pcd/mcd tools would be effective in aluminium on a small light weight machine? The machine is similar to a datron neo I suppose. Sits on a granite plate and has a 60000rpm spindle but it is only 300-400lbs. (check my channel to see the machine surfacing some wood to a "no sand" finish to get a feel for how well/badly it work)

[@nstool_intl]

Our PCDRB is suitable for hardened steels and we do not recommend for machining on aluminum.

[@littleshopofrandom685]

@@nstool_intl ahh, ok.

[@CATANOVA]

PCD works great in aluminium along with many other non ferrous. Some automated lights out processes can benefit from it with respect to it resisting wear and the need for frequent insert changes.