Group: HITACHI
Catalog excerpts
Epoch CBN Super Ball End Mill Epoch CBN Super Radius End Mill MOLDINO Tool Engineering, Ltd.
Open the catalog to page 1Achieves both strength and Features of Super Ball End Mill Unique shape Two types of geometry are available for sharpness of cutting edge and rigidity. Durable CBN material Compound neck shape Cutting resistance is low, so the finishing surface is excellent and finish accuracy is higher. Fine (F) type: Prioritizes high-accuracy machining Strong (S) type: Prioritizes stable machining Two types of geometry are available for sharpness of cutting edge and rigidity, enabling the geometry type to be selected according to the machining application. 02
Open the catalog to page 2sharpness of cutting edge. Features of Super Radius End Mill Axial rake is negative. (Rigidity priority) Radial rake is positive. (Sharpness of cutting edge priority) Compound neck shape Differences in cutting characteristics for ball end mill and radius end mill When bottom cutting Cutting is performed near tool axis, so there are few outside vibrations. Vibrations are more likely to occur with radius end mills. When cutting, vibrations tend to become stronger at the outside. Because of this, with a radius end mill, even if priority is just placed on sharpness ofcutting edge, chipping is...
Open the catalog to page 3Features Features of cutting edge for Epoch CBN end mill series CBN Super Ball End Mill Adopts Double Face shape in the cutter geometry. Double Face Shape Adopts both F type and S type. ※Photo shows F type. Double Face Effect R cutting edge improves sharpness of cutting edge while flank surface consists of 2 surfaces to ensure rigidity. Excellent sharpness of cutting edge F type and S type both ensure sharpness of cutting edge while rigidity of flank surface is improved. First step increases rigidity. Cutting resistance easily occurs at cutting edge and sharpness of cutting edge is poor....
Open the catalog to page 4Employs 2 types Of flute shapes. (Selectable according to the application.) Fine type Cutting Data (for R 0.5, L/D=10)Tool: CBN-EPSB2010-10-F CBN-EPSB2010-10-S Stability Machining accuracy •Comparison of surface roughness •Comparison of cutting depth limit Cutting Condition Work material : HPM38©(52HRC) Incline angle: 15° n=16,000min-1 (vc=50m/min) vf=960mm/min(/z=0.03mm/t) ap=0.05mm Mist Blow Cutting Condition F type provides smaller machined surface roughness.S type has a high cutting depth limit, enabling stable machining.
Open the catalog to page 5Application range Carbon steel Stainless steel Pre-hardened Hardened Hardened Hardened Alloy steel Tool steel steel steel steel steel Mold making Parts processing Recently, the trend in mold has been toward harder and harder materials, and cutting such materials has become very difficult. In addition, in order to respond to demands for ultra-high precision, tool wear resistance has become very important, and recently tool materials other than carbide, such as CBN, etc., are receiving a lot of attention. The geometry of this newly developed Epoch CBN End Mill series, unlike the conventional...
Open the catalog to page 6Field data Example: Z-constant finishing of SKD11H Tool wear When L=100m Epoch CBN Super Ball End Mill F type Ftype Tool size:R 0.5×2.5mm (Under neck length) Work material:SKD11Ⓗ (60HRC) n=40,000min-1 (v c=125m/min) v f=2400mm/min (f z=0.03mm/t) Z=0.05mm Mist Blow Finish accuracy Surface roughness Epoch CBN Conventional A CBN ball Super Ball End Mill Epoch CBN Super Ball End Mill CBN-EPSB2010-2.5-F Machining shape error(mm)
Open the catalog to page 7Field data Prism-shape machining examples Work shape Work material:Equivalent to SUS420J2 (52HRC) Tool:CBN-EPSB2004-1-F (R0.2×Under neck length1mm) n =40,000min-1 (v c =50m/min) v f =320mm/min (f z =0.004mm/t) Pitch=0.005mm(Scan line machining) Mist ※Epoch Super Hard Ball Evolution was used for roughing. Extremely low wear enables continuous machining! Protrusion height: 0.5mm; Incline angle: 63° Work size : 28mm square Machined surface roughness Ra 0.07μm Rz 0.54μm : : Achieves good surface roughness. Tool wear after using (Machining time: 13h 45min.) Provides good surface roughness and...
Open the catalog to page 8Comparison of machined surface roughness 1.8 Tool:R0.2×1mm (Under neck length) vf=800mm/min (fz=0.01mm/t) Work size Length of one side: 7.4mm; Depth: 4mm Mist Cutting time = 1hour Large reduced wear A Machining position A-A cross-section machining position Good machined surface roughness was obtained for each inclined surface. Bottom cutting of high-hardness material using CBN Super Radius End Mill CBN-EPSR2010-2.5-02 Cutting length Form breakage is extremely large. Cutting resistance is likely to increase. Breakage of flank side and large amount of wear
Open the catalog to page 9Field data High-performance slope machining Tool:CBN-EPSR2004-1-005 Work shape Tool size:φ0.4×r 0.05×1mm (Under neck length) n =40,000min-1 (v c =50m/min) v f =520mm/min (f z =0.0065mm/t) Zpic=0.002mm XY=0.005mm (Finishing allowance:0.005mm) Mist Cutting time:2.5min/piece ※Epoch Deep Radius used for roughing. Work size Width:Bottom width 0.78mm, Hight:0.3mm Length:2.7mm, Incline angle:15° , 40° Tool circumference side (Average surface roughness) (Maximum surface roughness) Surface roughness Flute tip condition after machining 6 pieces Good machined surface roughness can be obtained even...
Open the catalog to page 10Stopped groove finish machining using R0.1 Tool:CBN-EPSB2002-0.5-F Work shape Tool size:R 0.1×0.5mm (Under neck length) n=40,000min-1 (v c =25m/min) v f =560mm/min (f z =0.007mm/t) a p×a e=0.004mm×0.004mm Mist Cutting time:4min/piece ※Epoch Super Hard Ball Evolution used for roughing. Work size Groove width: 0.25mm at surface; Groove depth: 0.1mm; Slope angle: 18° Enables stable micro slotting! Provides good surface without vibration in corner areas. Cautions regarding use <About semi-finishing> Important For stable machining, perform medium finishing to remove waste in the corners. (This...
Open the catalog to page 11CBN Super Ball End Mill Includes actual measured tool diameter value. R accuracy:±0.005mm Strong (S) type Item Code Fine (F) type Stock Item Code ※Actual measured tool diameter value is shown on case. Size (mm) Ball Stock radius R Display of actual measured mill dia. for all tools Interference Tool Under neck Flute Neck Overall Shank Neck R dia. length length dia. length dia. Dc R 2 D1 R L Ds Actual Effective Length in Incline Angles 【Basic recommendation】 type : L/D(under neck length/tool dia)≦5, S type : L/D(under neck length/tool dia)>5 F Detailed shape below neck Under Neck Length...
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