Igor Chudov wrote: > Stuart, what I mean is this: > > 1) Drill a hole for tapping > 2) Tap with a plug tap > > Is that possible with a CNC mill equipped for rigid tapping? (like mine)? > It depends on the hole size, the thread engagement, the material, the thickness of the material, etc. I am sure you could do this in thin aluminum with an adequate hole diameter. I am sure you will have an accident attempting to do the same in thick stainless. I have a lot of experience now rigid tapping in various aluminum parts, but all with smaller taps from 2-56 up to 10-32. it was really COOL to watch it tap fairly deep holes with a 2-56 tap! All I had to do was brush the chips out of the tap's flutes every hole with a toothbrush soaked with alum-tap, and it went beautifully.
But, proper tap selection really makes all the difference. Try to do too deep a hole with spiral flute taps and they choke on their own chip and break. So, I have a selection of combined drill-taps (thin material only, no more than 2X major diameter), spiral flute (maybe 3-4 X diameter) and spiral point for anything deeper. Jon ------------------------------------------------------------------------------ The ultimate all-in-one performance toolkit: Intel(R) Parallel Studio XE: Pinpoint memory and threading errors before they happen. Find and fix more than 250 security defects in the development cycle. Locate bottlenecks in serial and parallel code that limit performance. http://p.sf.net/sfu/intel-dev2devfeb _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
