Re: Through Tool Coolant Mod
Instead of using the nozzle for the boring bars, drill bits, threading tools
me again
boring bars have a flat : once you put them inside the sleeve, coolant will come between the flat and the sleeve
drill bits, taps, etc, may be used inside an er chuck + unsealed collet, or collet with peripheral cooling ... also, for such tools, the collet acts like a dumpner
thus no nozzles, no modifications, only standard sleeves used ... the single expensive thing is the er collet with peripheral cooling, and you may get a normal metallic sealed one ( that is much cheaper ) and modify it on a edm machine
Taper the front 10°-15° (whatever needed to hit towards the end of the tool)
this will work only for a specific tool overhang, and coolant flow won't be focused and powerfull, but only present
also, if you start to drill / mill ( in order to modify your sleeve ), you may reduce the coolant flow, unless the hole size is close to the size of the hole that is inside the turret
yes, many people think about it, and they conclude that this is not true, a smaller hole means that they will achieve more pressure no, actually the pump will start to send coolant back in the tank, through the safety pipes, that do not allow pressure build-up
adjusting nozzles may be time consuming ... if you wish to modify something, i would advice you to use adjustable coolant nozzles, that do no require to untight a screw, adjust, then tight the screw back, but are using a friction play, in order to stay in place ( pls check attached )
some capto toolholders are using a very minimalistic approach, having an andjustable noozle that is burried inside the holder, thus is harder for chips to hit it ( no need to buy the holder, but only the spare parts ) / kindly
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