Depth of cut: ap (mm) Feed: f (mm/rev) - Chipbreaker Guide Aluminium wheel machining DTA type Full radius type Standard feed and DoC5 (2 corners) 4 Excellent chip control 3 For aluminium wheel profiling 2 Ground inserts 1 CW = 6 - 8 mm 0 0.1 0.2 0.3 0.4 0.5 0.6 Feed: f (mm/rev) Groove width: CW (mm) External F108 page 6 8 Internal External grooving of hardened steel Face SGN-CBN type Suitable for hardened steel Standard feed (1 corner) machining 0.1 Optimum cutting edge shape for 0.08 Parting grooving of hardened steels 0.06 Others High tolerance width for finishing 0.04 CW = 2 - 4 mm 0.02 (Tolerance: ±0.025 mm) 0 2 3 4 Groove width: CW (mm) F108 page AH7025 performance First choice for grooving of various materials AH7025 grade - Tungaloy's unique coating technology for drastically improved reliability Tool life comparison Alloy steel AH7025 Conventional (SCM440) INSERT : DTE3-040 AH7025 Cutting Speed : Vc = 150 m/min Feed : f = 0.17 mm/rev Groove depth : 17 mm Product series :External toolholder for Tool wear after 60 grooves Tool wear after 30 grooves grooving Coolant :Wet AH7025 provides stability, while preventing coating from peeling off evenafter machining twice the number of passes compared to the conventional grade. The combination of Nano-multi-layered AlTiN Coating with high Al content and tough substrate provides highly efficient machining in various grooving operations F112 www.tungaloy.com