Shell end mills, semicoarse teeth, type NR, coating AlTiN
624277High-speed steel HSSE-PMDIN 1880
| D |
| d |
|l1||Z||Item code||On stock|
|P.1 | Free-cutting steels, general construction steels||≤ 600 N/mm²||0,8xl1||0,75xD||45||0.144||0.153||0.18||0.198||0.207|
|P.2 | General construction steels, steel castings||≤ 850 N/mm²||0,8xl1||0,75xD||39||0.144||0.153||0.18||0.198||0.207|
|P.4 | Heat treatable steels||≤ 900 N/mm²||0,8xl1||0,75xD||30||0.144||0.153||0.18||0.198||0.207|
|M.2 | Corrosion- and acid-proof steels||750 - 850 N/mm²||0,8xl1||0,75xD||15||0.144||0.153||0.18||0.198||0.207|
|K.2 | Cast iron (> 240 HB)||> 800 N/mm²||0,8xl1||0,75xD||25||0.144||0.153||0.18||0.198||0.207|
|S.2 | Titanium, titanium cast alloys||≤ 1250 N/mm²||0,8xl1||0,75xD||13||0.1005||0.1065||0.126||0.138||0.1455|
Calculations of cutting conditions
Clamping elementmore +
Straight bore with standard keyway and driving slot according to DIN 138.
Tool geometrymore +
Helix angle = 30°. Rake angle = 12°.
Material HSSE-PMmore +
Extra high performance high speed steel produced by powder metallurgy. It has a homogeneous structure resulting in higher dimension stability and longer tool life. It is applicable for machining of materials with very high strength and materials hard to machine, such as Titanium and its alloys. The milling cutters made from this material are delivered with AlTiN coating as a standard.
Type NRmore +
For roughing operation and materials of lower and medium strength (up to 700 MPa), surface roughness Ra 12,5 and more.
Feed direction possibility
Coating AlTiNmore +
Offers similar qualities as TiAlN, but even higher hardness. Substanial temperature stability. Designed for the most demanding applications. It provides excellent result mainly when combined with HSSE-PM steels (ASP 2030). The milling cutters manufactured from this steel are coated with AlTiN as standard.