There is one other way of holding end mills that has not been mentioned, and that is a milling chuck. They also use collets, but only for specific shank sizes. Of course, these as well as shrink fit are rather moot for people using R8 or Morse spindles, as they are only available for CAT or BT spindles. Here are a couple of links if interested:
http://www.maritool.com/Tool-Holders-Cat-40-Milling-Chucks/c23_25_102/p620/CAT40-MILLING-CHUCK-ASC1.00-80/product_info.html http://www.maritool.com/Collets-Milling-Chuck-Collets-SC25.4-collets-(1.00-inch)/c21_103_104/p639/SC25.4-.250-Milling-Chuck-Collet/product_info.html -- Ralph ________________________________________ From: andy pugh [[email protected]] Sent: Wednesday, October 31, 2012 5:31 AM To: Enhanced Machine Controller (EMC) Subject: Re: [Emc-users] I crashed my machine, now I need a new drill chuck On 31 October 2012 11:44, John Thornton <[email protected]> wrote: > I guess if your machining at 10,000rpm with aggressive feed rates maybe > collets are not the answer... I would assume you would use shrink fit > tooling for something like tha I thought that, and when I googled yesterday to find out if "Shrink fit" really was called "shrink fit" I found this article: http://www.moldmakingtechnology.com/articles/high-speed-collet-toolholder-or-shrink-fit-tooling Which seems to prefer collets over shrink-fit.. (admittedly at higher speeds, and presumably smaller sizes than being discussed) Whereas http://www.techniksusa.com/metal/SF_casestudy.htm prefers shrink-fit over collet. I suspect that there might be just as many opinions in the collet v Weldon debate. I don't really feel qualified to opinionate on the matter myself. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto ------------------------------------------------------------------------------ Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_sfd2d_oct _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
