WIDIA - vrtání | KL-TECH s.r.o. | www.klte.cz widia-vrtání | Page 244

Indexable Drills Application Data • Top Cut 4 ™ „  Top Cut 4 • Cast Iron • 2 x D/3 x D • Feed Chart • Metric Recommended Feed Rate by Diameter (mm/r) Top Cut 4 Material Group Condition S 1 U I S K 2 U I S 3 U I Pocket Seat Geometry Grade P V34 WPK10CH C V34 WU25CH P V34 WU25CH C V34 WU40PH P V34 WU40PH C V34 WU40PH P V34 WPK10CH C V34 WU25CH P V34 WU25CH C V34 WU40PH P V34 WU40PH C V34 WU40PH P V34 WPK10CH C V34 WU25CH P V34 WU25CH C V34 WU40PH P V34 WU40PH C V34 WU40PH Insert Size E Insert Size F Insert Size G Insert Size H TCF120405EC TCF100408EP 30,00–36,99mm TCF150406FC TCF120412FP 37,00–45,99mm TCF180508GC TCF150512GP 46,00–56,99mm TCF210608HC TCF180614HP 57,00–68,00mm min Start max min Start max min Start max min Start max 0,14 0,16 0,26 0,16 0,20 0,3 0,18 0,22 0,32 0,20 0,24 0,36 0,14 0,16 0,26 0,16 0,20 0,3 0,18 0,22 0,32 0,20 0,24 0,36 0,14 0,16 0,26 0,16 0,20 0,3 0,18 0,22 0,32 0,20 0,24 0,36 0,14 0,16 0,26 0,16 0,20 0,3 0,18 0,22 0,32 0,20 0,24 0,36 0,14 0,16 0,26 0,16 0,20 0,3 0,18 0,22 0,32 0,20 0,24 0,36 0,14 0,16 0,26 0,16 0,20 0,3 0,18 0,22 0,32 0,20 0,24 0,36 0,14 0,16 0,26 0,16 0,20 0,3 0,18 0,22 0,32 0,20 0,24 0,36 0,14 0,16 0,26 0,16 0,20 0,3 0,18 0,22 0,32 0,20 0,24 0,36 0,14 0,16 0,26 0,16 0,20 0,3 0,18 0,22 0,32 0,20 0,24 0,36 NOTE: For 4 x D, it is highly recommended to start with feed and speed values reduced by 10% less than above recommendations. For 5 x D, diameter range 12–23,99mm (insert sizes A to C), it is highly recommended to start with feed and speed values reduced by 20% less than above recommendations. For 5 x D, diameter range 24–68mm (insert sizes D to H), it is highly recommended to start with feed and speed values reduced by 15% less than above recommendations. For 4 x D and 5 x D, it is recommended to reduce the feed rate during entry and exit by 30–50%. V34 widia.com Condition: S = stable conditions, U = unstable cutting conditions, I = interrupted cutting conditions Pocket Seat: P = periphery insert, C = centre insert