![]() ![]() Now maybe this is a long shot, but anything more than flood in a blind holed app for a form tap is: Just going out on a limb, but if you have 300# pushing into a blind hole, and then try hydralocking it (depending on coolant grooves or just form relief ground tool) the faster that you try to shove it in there, the faster it needs to shove coolant back upstream. I also wonder what kind of ability your coolant system has to accept back flow? If you have a bottomed hole - then why on Earth would you want a coolant through tap? Not the kind of remark that I expected from you Gary. I think that the two dumbest remarks in this thread are both in this quotation - especially from someone that has never ran this process and is asking questions about it. Putting tapping fluid in by hand, is not an option, this is a cnc mill, and have thousands and thousands of holes. So, simple question, does anyone have ANY ACTUAL EXPERIENCE with these taps, to say if we can actually take this sfm higher, prior to experimenting with 85 dollar taps. Other than my boot size, this is all the info available. Customer wants minimal lead in threads at the bottom of thread, hence why we are using bottoming taps. Would really like to be running 1000 plus rpm. We are at 300 holes since changing to 50 sfm. Which by the way, NEVER HURTS TO HAVE, ( see above for dumb comment) Taps are capable of 1.5 thread depth. Reversal is 2x rpm to exit.220 clearance between bottom of drill and bottom of tap. Rpm are approximately 600, which puts us at 29.52755 feed rate. 294 before tapping with an m8x1.25 6h osg exo tap. Yes, Im well aware, and completely understanding of the difference between taps!!! Hole size is. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |