Group: HITACHI
Catalog excerpts
Epoch CBN High Precision Ball End Mill
Open the catalog to page 1Achieves high-accuracy machining of hardened ① Dedication to high accuracy and high quality ・The low cutting force high-strength flute shape suppresses damage and enables to handle applications from roughing to finishing. ・High-rigidity design improves machining accuracy. ・High-quality flute edge improves surface roughness. ・R tolerance : ±0.003mm (R0.3 or less) ・High-accuracy h4 shank specification ・All tools include actual measured values for outer diameter Applications Application range Copper Carbon steel Alloy steel Stainless steel Pre-hardened Tool steel steel CBN-EHB Parts...
Open the catalog to page 2steels !! ② Expanded lineup ・High-demand items such as short under-neck length types or small-diameter types have been greatly expanded! ③ Regrindable flute shape (R 0.3 or more) Original shape provides core diameter and wall thickness to increase rigidity. Bigger core diameter Tool:CBN-EHB2010-2.5 (R 0.5 ×Under neck length 2.5mm) Machine:Vertical M/C (HSK-E32) Work material:SLD (60HRC) Coolant:Mist-blow (v n =40,000min-1 c=125m/min) v f =1,600mm/min z =0.02mm/t) (f Cutting pitch:0.02mm Stock material:0.02mm Cross section Groove width Stock material Measurement of difference from...
Open the catalog to page 3Includes actual measured mill diameter value. : Stocked Items. For regrinding of this tool, please contact the pe
Open the catalog to page 4Recommended Cutting Conditions <High efficiency condition> Hardened Steels (50~55HRC) HPM38 Work material Ball radius R (mm) Mill Under neck dia. length R 2 Dc Revolution Feed rate Revolution Feed rate Revolution Feed rate Revolution Feed rate 【Note】1) Use the appropriate coolant for the work material and machining shape. 2) This standard cutting condition table is intended as reference cutting conditions. The conditions should be adjusted as
Open the catalog to page 5[Note] 1) Use the appropriate coolant for the work material and machining shape. 2) This standard cutting condition table is intended as reference cutting conditions. The conditions should be adjusted as necessary according to the actual conditions of machined shape, purpose, machine used, etc. 3) If the machine rotation speed is insufficient, reduce the rotation speed and feed rate by the same ratio.
Open the catalog to page 6For stable machining, perform semi finishing to remove remaining stock in the corners. (This will make the machining amount for finishing uniform.) At this time, it is recommended that the program should be set so that the cusp height will be a constant amount. In addition, it is recommended that semi finishing should be performed with CBN end mill. < Input of diameter correction value > Make effective use of the measured outside diameter value stated on the case. For Epoch CBN High Precision Ball End Mill, the measured outside diameter value is stated on the case. Inputting the actual...
Open the catalog to page 7Field data R shape machining example by Z constant machining【After cutting 1,500m】 Tool:CBN-EHB2010-2.5(R0.5 ×Under neck length 2.5mm) Machine:Vertical M/C (HSK-E25) Work material:YXR3 (58HRC) Coolant:Mist-blow n =40,000min-1(v c=125m/min) v f =1,760mm/min(fz =0.022mm/t) Cutting pitch:0.02mm Stock material:0.02mm Flute edge section <Model shape> Peripheral flute edge Normal wear Continued machining possible. Low cutting force high-strength flute shape suppresses damage and provides longer tool life than conventional product! Example of pocket-shaped finishing Tool:CBN-EHB2010-2.5(R0.5...
Open the catalog to page 8Example of inclined surface finishing by scan machining①【After machining 25m】 Tool:CBN-EHB2002-0.5(R0.1×Under neck length 0.5mm) Machine:Vertical M/C(HSK-E25) Work material:DC53(62HRC) Coolant:Mist Blow n =40,000min-1(v c=25m/min) v f =350mm/min(fz =0.0044mm/t) Cutting pitch:0.01mm Stock material:0.006mm Normal wear Continued machining possible. Example of inclined surface finishing by scan machining②【After machining 60m】 Tool:CBN-EHB2003-0.5(R0.15×Under neck length 0.5mm) Machine:Vertical M/C (HSK-E25) Work Material:PD613(61HRC) Coolant:Mist-blow n =40,000min-1(v c=38m/min) v f...
Open the catalog to page 9Epoch® CBN High Precision Ball End Mill The high-strength flute shape of the Epoch CBN high-precision ball end mill shows excellent performance even in roughing. By using this product, not only for finishing but also for roughing, machining with higher accuracy Hi-Pr&T = “High Precision Pre-finishing” For making high precision dies&molds, the accuracy of roughing and semi-finishing processes are very important as well as finishing. High precision from roughing enables the optimization of the total production process including polishing or adjustment! This is “Hi-Pre2” , Mitsubishi Hitachi...
Open the catalog to page 10● Example of pocket-shaped finishing Comparison of changes in remaining stock for each machining pattern from ① to ③ Machining pattern Roughing Finishing Depth 0.7mm Incline angle 5° Using only carbide tools Carbide tool Carbide tool Carbide tool For roughing, tool must be changed after each mold. Finishing is performed with 1 tool. Machining with 1 tool each for roughing and finishing. Tool: 【cBN】CBN-EHB2004-0.75 【Carbide】EPDBEH2004-0.75-ATH R0.2×Under neck length 0.75mm) ( Machine:Vertical M/C (HSK-E25) Work material:ASP23 (64HRC) Coolat:Mist-blow 【Roughing】n=40000min-1 c=50m/min) (v...
Open the catalog to page 11The diagrams and table data are examples of test results, and are not guaranteed values. "Epoch" , “ ” and “ ” are registered trademarks of Mitsubishi Hitachi Tool Engineering, Ltd. in Japan. Attentions on Safety 1. Cautions regarding handling (1) When removing the tool from its case (packaging), be careful that the tool does not pop out or is dropped. Be particularly careful regarding contact with the tool flutes. (2) When handling tools with sharp cutting flutes, be careful not to touch the cutting flutes directly with your bare hands. 2. Cautions regarding mounting (1) Before use, check...
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