High Feed Radius End Mill for Hardened Steel EHHRE-TH3. Epoch High Hard Radius. New Product News No.1709E

Transcription

1 High Feed Radius End Mill for Hardened Steel EHHRE-TH Epoch High Hard Radius New Product News No.709E 07-

2 dopt the design of indexable high-feed cutter to solid end mill. High feed cutting for high hardness steel possible Lineup of Φ ~ Φ The multi flute end mill enables high efficiency machining even in small precision molds Features of EHHRE-TH pproximate radius makes much thinner chip than real radius Vibration-free peripheral clearance geometry Newly developed coating "TH" for hardened steel machining Pat. No.07 Pat. No.7007 TH Coating pplications EHHRE-TH Copper Carbon steel lloy steel Stainless steel Tool steel Pre-hardened steel Hardened steel ~HRC Hardened steel ~HRC Mold making Mold making Parts processing Parts processing φ~φ [ Items ] Features 0 New Cutting Edge Geometry - pproximate radius makes much thinner chip than real radius EHHRE-TH Conventional Radius a p a p Maximum chip thickness: Tmax f z Maximum chip thickness: Tmax f z T max Thinner removed chip T max Effect Composite R geometry on bottom cutting edge could create thinner chips than conventional radius geometry (real R), and it enables to reduce cutting force. Furthermore, by making the bottom edge a high helix shape, it improves the chip flow. nd achieves excellent chip discharging performance. 0

3 Features 0 Peripheral clearance geometry to reduce vibration Vibration-free peripheral clearance geometry Sub cutting edge Primary cutting edge rea without cutting edge Clearance Clearance Effect to suppress vibration at corner milling Work material:dch 9HRC Machine:Vertical MC (HSK-) Tool:EHHRE00-TH Cutting conditions:n=,000min - (vc=m/min) vf=,00mm/min (fz=0.0mm/t) Cutting amount :0.mm, Dry with air blow EHHRE-TH Conventional Effect It is possible to minimize chatter vibrations at high speed machining and at corners, that can suppress unexpected chipping due to chatter vibration and efficiency reduction at corners. 90 degree corner milling Features 0 Newly 効 developed 果 coating "TH" for hardened steel machining Features and performance High hardness coating with excellent wear resistance and heat resistance Has excellent thermal shock resistance enables to suppress sudden chipping Long tool life when cutting high-hardness materials (0HRC or higher) such as hardened steel Target steel grade Hardened steel (especially 0HRC or higher), high-speed steel Coating structure Hardness : 00HV Oxidation temperature : 00 Funcitional layer with excellent thermal shock resistance New layer with excellent wear resistance and heat resistance pplies nano-size composition! Point New coating achieves to reduce destruction unit of layer by applying "nano-size composition". Conventional coating ig destruction New coating Cutting force Cutting force Small destruction 0

4 Line Up, Re-grinding φd type φ φds R R L φd type φ φds R Rp h r r Df R L EHHRE (-S )-TH Size Item code Stock Tool pprox Lowest point End Corner Under Neck Flute Neck Overall Shank No. of dia. radius diameter R radius length length dia. Length dia. flutes Type Rp Df r r R R D L Ds EHHRE00-S-TH EHHRE00-S-TH EHHRE00-S-TH EHHRE00-S-TH EHHRE00-S-TH EHHRE00-S-TH EHHRE00-S-TH EHHRE00-S-TH EHHRE00-TH EHHRE00-TH EHHRE00-TH EHHRE00-TH EHHRE0-TH :Stocked items Helix h Roughing 7 TH HRC Coated Flutes Flutes Precaution for creating machining program Rp h When entering corner radius into CM as radius end mill, Please use approximate R for your programing corner radius. For precise tool definition for the CM system please download DXF data from "TOOL SERCH" program on our website. Tool Dia. Φ Φ Φ Φ Φ Φ Φ Φ0 Φ pprox radius and maximum remains at CM input pprox radius Rp Max remains h Ramping angle θ 0. or less Possible helical hole dia. D.~.9.~..9~.7.~7..~9. 7.7~. 0.~..~9.0.~. For helical machining, Please set feed rate to 70% of recommended cutting condition. EHHRE-TH Re-grinding compatibility range table Line up Item Code Product tool dia. Shape Re-grinding compatibility range Outer Dia. Epoch High Hard Radius ~ ~ End 0

5 Recommended Cutting Conditions General cutting conditions (Emphasis on tool life) Work material Tool dia. 0 0 No. of flutes Work material Tool dia. No. of flutes (0~HRC) (~HRC) Cutting speed vc=0m/min Cutting speed vc=0m/min n (min - ) vf (mm/min) ap ae n (min - ) vf (mm/min) ap ae,00,700,00,00,00,00,00,00,00,70,0,0,0,90,70,0,000, ,00 9,00,00,00,00,00,00,900,00,70,70,00,70,70,790,0,0, (~HRC) (~7HRC) Cutting speed vc=0m/min Cutting speed vc=0m/min n (min - ) vf (mm/min) ap ae n (min - ) vf (mm/min) ap ae,900,000,00,000,00,700,000,00,00,070,00,0,70,70,770,00,00, ,700,00,00,00,00,00,00,00, Cutting conditions for high-efficiency cutting (Emphasis on efficiency) Note Work material Tool dia. 0 0 Work material Tool dia. No. of flutes No. of flutes (0~HRC) (~HRC) Cutting speed vc=00m/min Cutting speed vc=70m/min n (min - ) vf (mm/min) ap ae n (min - ) vf (mm/min) ap ae,0,0 0,0,000,0,0,000,0,0,70,70,90 7,0 7,0 7,0 7,90 7,70 7, ,0,00 7,70,00,0,70,00,0,70,070,00,70,90,0,0,0,0, (~HRC) (~7HRC) Cutting speed vc=0m/min Cutting speed vc=0m/min n (min - ) vf (mm/min) ap ae n (min - ) vf (mm/min) ap ae 9,00 9,00,0,00,0,0,00,90,0,0,0,90,0,0,90,0,0, ,0,000,0,000,0,0,000,0, ,70,70,0,0,0, Use the appropriate coolant for the work material and machining shape. Use a highly rigid and accurate machine as possible. These Recommended Cutting Conditions indicate only the rule of a thumb for the cutting conditions. In actual machining, the condition should be adjusted according to the machining shape, purpose and the machine type. If the rpm available is lower than that recommended please reduce the feed rate to the same ratio. Please use for contouring process. Setting pick feed (ae) larger than lowest point diameter will remain cusp. Since EHHRE-TH adopts a cutting edge geometry for high hardness steel cutting, it is not suitable for sticky hard material such as hot forging material SKD (reformed). EME-TH is recommended for cutting SKD (reformed). 0

6 Field data Tool life evaluation of cutting SKDH Tool size:φ0 flutes Work material:skdh( 0HRC) Machine:Vertical MC (HSK-F) Cutting conditions:n=,900min - (vc=0m/min) v f=,0mm/min (fz=0.mm/t) ap 0.mm ae.mm OH=0mm Coolant:ir-blow Maximum flank wear width Conventional (Conventional flutes radius end mill) Chipping occurred at the beginning of cutting Conventional Chipping occurred EHHRE-TH Micro wear Cutting length (m) EHHRE-TH achieves more than twice the tool life of conventional products High feed cutting of high hardness steel which was difficult with conventional radius geometry was realized. Marginal test to evaluate feed limit for cutting powder high-speed steel Tool size:φ0 flutes Work material:hp0(hrc) Machine:Vertical MC (HSK-F) Cutting conditions:n=,000min - (vc=m/min) v f=refer to below table ap 0.mm ae mm OH=0mm Coolant: ir-blow Feed rate limit value EHHRE-TH EHHRE-TH 900 Conventional Conventional 000 Conventional 00 Conventional Feed rate (mm/min) 0.mm High feed cutting of high hardness steel is possible by synergistic effect of low cutting force radius geometry and TH coating. 0

7 Example of high-efficiency roughing of matrix high-speed steel Work size:00 00mm Work material:yxr(hrc) Machine:Vertical MC(T0) Coolant:ir-blow Tool Tool Dia. R Revolution [min - ] Cutting speed [m/min] Feed rate [mm/min] Feed per tooth [mm/t] ap ae Chip removal volume [cm /min] Machining time EHHRE00-TH 0 0.9,00 9, min Conventional ( flutes radius) 0,00, hr.min. Work shape:00 Depth0mm Wear condition after cutting Conventional flutes radius end mill EHHRE-TH Conventional flutes radius end mill EHHRE-TH 0.mm Micro wear, possible to use continuously Chipping occured on R edge EHHRE achieved times cutting efficiency than conventional tool. Good wear condition that can use continuously. High-efficiency cutting example of powder high-speed steel Work size:0 0mm Work material:hp0(hrc) Machine:Vertical MC(HSK-F) Process Contour roughing❶ Contour roughing❷ Tool EHHRE00-S-TH EHHRE00-S-TH Tool Dia. R Revolution [min - ] 0.,0 0.,0 Cutting speed [m/min] 0 0 Feed rate [mm/min],90,90 Feed per tooth [mm/t] ap ae Removal stock Coolant ir-blow ir-blow Machining time hr. min. hr. min. Figure Work model Figure Work after cutting Figure Wear condition after roughing Cubic shape size : mm, Space mm EHHRE00-S-TH Flank wear width 0.0mm ❶ ❷ Normal wear even after hour cutting EHHRE can perform high-efficiency machining even for small work-piece of high hardness steel fter roughing by EHHRE-TH, recommended semi-finishing and finishing with the following tool. Epoch High Hard all (EHH-TH), Epoch Deep all Evolution Hard -TH (EPDEH-TH) 07

8 The 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. ttentions on Safety. Cautions regarding handling () When removing the tool from its case (packaging), be careful that the tool does not pop out or is dropped. e particularly careful regarding contact with the tool flutes. () When handling tools with sharp cutting flutes, be careful not to touch the cutting flutes directly with your bare hands.. Cautions regarding mounting () efore use, check the outside appearance of the tool for scratches, cracks, etc. and that it is firmly mounted in the collet chuck, etc. () If abnormal chattering, etc. occurs during use, stop the machine immediately and remove the cause of the chattering.. Cautions during use () efore use, confirm the dimensions and direction of rotation of the tool and milling work material. () The numerical values in the standard cutting conditions table should be used as criteria when starting new work. The cutting conditions should be adjusted as appropriate when the cutting depth is large, the rigidity of the machine being used is low, or according to the conditions of the work material. () Cutting tools are made of a hard material. During use, they may break and fly off. In addition, cutting chips may also fly off. Since there is a danger of injury to workers, fire, or eye damage from such flying pieces, a safety cover should be attached when work is performed and safety equipment such as safety goggles should be worn to create a safe environment for work. () There is a risk of fire or inflammation due to sparks, heat due to breakage, and cutting chips. Do not use where there is a risk of fire or explosion. Please caution of fire while using oil base coolant, fire prevention is necessary. () Do not use the tool for any purpose other than that for which it is intended.. Cautions regarding regrinding () If regrinding is not performed at the proper time, there is a risk of the tool breaking. Replace the tool with one in good condition, or perform regrinding. () Grinding dust will be created when regrinding a tool. When regrinding, be sure to attach a safety cover over the work area and wear safety clothes such as safety goggles, etc. () This product contains the specified chemical substance cobalt and its inorganic compounds. When performing regrinding or similar processing, be sure to handle the processing in accordance with thelocal laws and regulations regarding prevention of hazards due to specified chemical substances. Head Office Hulic Ryogoku ldg. F, --, Ryogoku, Sumida-ku, Tokyo, Japan 0-00 International Sales Dept. : TEL FX Official Web Site Database for selection Cutting Tool Products TOOL SERCH Search Web Europe MMC Hitachi Tool Engineering Europe GmbH Itterpark, 07 Hilden,Germany. Tel +9-(0)0-0 Fax +9-(0)0-0 MITSUISHI MTERILS U.S.. CORPORTION DETROIT OFFICE Customer service 700 Gardenbrook Road, Suite 0, Novi, MI 7-0 U.S.. Tel +() 0-0 Fax +() 0-7 CHICGO OFFICE North Plum Grove Road, Schaumburg, IL 07 U.S.. Tel +(7) -7 Fax +() 0-7 China MMC Hitachi Tool Engineering(Shanghai),Ltd. F, Chuang Xing Financial Center, Nanjing RD (West) Shanghai, China 0000 Tel +-(0)--0 Fax +-(0)--00 MMC Hardmetal(Thailand)Co.,Ltd. HT-Division 99 Interchange uilding, 0th Floor, Unit no. 0, Sukhumvit soke Road, Klongtoey Nua, Wattana, angkok 00, Thailand Tel +-(0)--0 Fax +-(0)-- Hitachi Metals (India) Pvt. Ltd. Plot No 9 & 9,Sector, IMT Manesar,Gurgaon-00, Haryana, India Tel +9-- Fax merica Thailand India DISTRIUTED Y: Specifications for the products listed in this catalog are subject to change without notice due to replacement or modification. Printed using vegetable oil ink. Printed in JPN 07-(K) 07-:FP