http://www.todaysmachiningworld.com/forum/topic/machining-sst304 Brought to you by Todays Machining World en-US Wed, 08 Feb 2012 14:30:52 +0000 http://bbpress.org/?v=1.0.2 q http://www.todaysmachiningworld.com/forum/search.php http://www.todaysmachiningworld.com/forum/topic/machining-sst304#post-660 Tue, 18 Aug 2009 15:03:36 +0000 Anonymous 660@http://www.todaysmachiningworld.com/forum/ <p>This may not apply to the insert, but when rotary broaching SS many of our customers upgrade to tougher materials and coatings for wear, but for chipping we recommend they try slowing down a little bit first. This often solves the problem. </p> http://www.todaysmachiningworld.com/forum/topic/machining-sst304#post-659 Mon, 17 Aug 2009 18:33:15 +0000 Anonymous 659@http://www.todaysmachiningworld.com/forum/ <p>That's a pretty small I.C. insert. There aren't many choices of insert in that size, but one that I know will impress you with tool life in 304SS. Get a Valenite DCGT070204 1L (a.k.a. DCGT21.51 1L) in grade VP9605. EDP number is 19082. They have a smaller radius one also, a DCGT070202 1L VP9605 EDP# 19081. If you can go to a smaller tool nose radius, that will further reduce cutting force, something important on such small diameter stock.</p> <p>Two things about that insert will help over the current one. First, it's a ground periphery on the insert for a sharper edge. This reduces cutting forces and lessens the risk of work-hardening. The coating is extra-hard and the substrate carbide is sub-micron size, this will help with tool life. </p> http://www.todaysmachiningworld.com/forum/topic/machining-sst304#post-632 Wed, 29 Jul 2009 16:02:14 +0000 Anonymous 632@http://www.todaysmachiningworld.com/forum/ <p>I'm using a CNC swiss type lathe. We are trying to machine bar 1/8 SST304, but we have problems with tool wear and chip control, we are using a SECO DCMT 070204 F1 CP500, the cutting conditions are RPM 8000, F=0.04 mm/rev DOC=0.8 mm. Got any tips to improve the process? </p>