rockmoose
his flabber is totally gastered
Colour me impressed.PF30 tool.
Some of it started out life as an ej25 piston
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Colour me impressed.PF30 tool.
Some of it started out life as an ej25 piston
I bought a pair of these from you a couple of years ago, they are an amazing bit of gear, thanks again!I’m using dial indicators on noga arms.....
What hardness are you cutting? We're always looking for new/better ways to cut threads in case hardened EN36. Near 60 in the case and ~45 in the core (HRC). We usually plan ahead and allow some extra material so we can hard turn/mill the case off prior to drilling and threading. Once you get up into the mid to high 50's for hardness the only real safe method we've found is to EDM the threads. Not fast or cheap but pretty much guaranteed to get a good result.Finished products. No space for inserts and the bigger machine taps break as easy as the small ones. The holes are also blind so extra risky with rigid tapping and extra painful to remove a broken tap. The thread bores will actually be undercut at the bottom with some very neat little single point cutters that we have ground in-house.
I'll be climb milling the threads from the bottom of the bores up in several passes. Probably just run air for chip evacuation as I'm worried about flood coolant holding the chips in the holes (no through tool coolant options on these size thread mills). The chip size will be very small though, so might be a non-issue. Tool life is also going to be interesting.
All in all, I'm looking forward to giving it a go. Also, once I'm done with these cutters for this job then I expect them to still be plenty good to run some parts in alu. The grooving cutters and thread milling cutters are particularly useful for suspension related stuff for cutting o-ring grooves and milling large diameter fine threads like for fork caps and air cans etc.
Sorry, pretty strict company policy on that. You get a good idea of what we make from our fb page https://www.facebook.com/Albinsgear/Pics!
Yeah, you should be fine thread milling 42-46, that's around the core hardness of our material and our tooling lasts OK unless we get a bit too close to the case on the other side of the part (say at the bottom of a blind mounting hole in a crown wheel for example).Our stock is pre-hardened to somewhere in the 42-46HRC range. We don't have a hardness tester so I can't be 100% sure. EDM would be the way to go, but at <46HRC it is certainly machinable with good tooling and rigid fixturing.
I can't share any production pics but I'll be running a number of test pieces that I can probably photograph.
That's some pretty tasting looking stuff. So good to see some top notch local manufacturing.Sorry, pretty strict company policy on that. You get a good idea of what we make from our fb page https://www.facebook.com/Albinsgear/
A mate has a PPG sequential box and the fairly high powered GTR it’s in has been off the road for over 12 months waiting on parts. Ate 3rd gear and on rebuilding found the input shaft with cracks in it. I’m sure he wishes he bought something with locally manufactured partsLOL, just actually looked at our FB page and the first post has replies with pics from a disgruntled customer that's smashed one of our gear sets! Funny how some people think that when you buy aftermarket gears they are made of some mystery material that is indestructible. They smash the OE gears, buy ours that are 'x' stronger, and expect them to last forever.
Vid prices, those GTR's are worth a mint at the moment.A mate has a PPG sequential box and the fairly high powered GTR it’s in has been off the road for over 12 months waiting on parts.
Vid prices, those GTR's are worth a mint at the moment.
My mate was sold a GTR-R34 in purple by a mate of his who needed the cash to go to Thailand and has disappeared and not contacted anyone in 2yrs.