[shawnrw]

Gents,

Please take a look at my photo and tell me the best way to correct this. Trying to cut 1/8 6061/t6 and get this build up only in certain places, other places no issues. I'm cutting at 20k, 20"IPM, .0625 cut depth, with a .125 up cut 1 flute end mil.

Thanks for any help..

Regards,
Shawn

[Cantabrigian]

how much chip welding did you get on the cutter? you've got to get the chips out of that slot. run a mister or flood coolant, or at the very least an air blast with manual lubricant application to prevent hips from welding to your cutter. the real problem is not evacuating the slot of chips,

[shawnrw]

Chip welding to the cutter is minimal if any at all. It's just seems odd that some directions there are no issues, but others it loads up fast... I agree an air blast is needed and an upgrade I'm currently working on.

Regards,
Shawn

[ger21]

Once you get a few chips stuck in a slot, it's a chain reaction that quickly fills and packs the slot. Changes in direction are more likely to lead to chips getting stuck.

[atwooddon]

Without some level of cooling via flood or mist, the bit is getting hot and the chips are 'sticking' rather than clearing the slot. Can you turn the rpm down on your spindle/router, or increase the feed rate, or both? I would also cut the DOC in half while you experiment. It is possible to cut aluminum 'dry' but you have to really be careful with the feed rate vs the rpm. And, you could try using some lubricant on the cut, Flood the cut area with some cutting oil or some spray lubricant during the cutting. These are all workarounds to the flood/mist solutions.

Don

[shawnrw]

ger21, Don,

Thanks for the info I will change my DOC as well as look into the lube..

[Khalid]

see climb milling and conventional milling and you willget the answer