12-09-2013, 06:59 PM
(12-09-2013, 01:41 PM)awemawson Wrote: Thanks Pixman - a useful tip. I presume that the N in the code is a 'neutral' grind as in the Sandvik one that come L N & R
Andrew
Yes, Andrew, that's what it means. There are as well a variety of different chipbreakers on the Valenite VSG inserts. The "FG" is for general purpose parting and grooving at medium to low feed rates. The "CG" is more upsharp, for stainless steels and light feed rates. The "LG" is similar to FG, also good for light feeds. The "GG" is for heavy feeds and interrupted cuts, and the "PG" is their "precision grooving" for just that. It has smaller corner radii. The "RG" and "UG" are both full radius inserts for undercutting shoulders and other round grooves or groove-turn operations.
Valenite grades include 5820, 5735 and UK20. The 5820 is a great all-around all materials grade that can be run at high speeds. The 5735 is a high cobalt content one for interrupted cuts or low speeds, and the UK20 is essentiall the 5820 without coating, great for cast iron, aluminum and stainless steels.
Hope this helps.
Ken