NSBH-ATH/EMSBH-ATH. Carbide Oil Hole Non Step Borer H for high hardness material Epoch Micro Step Borer H. Drills for high-hardened steels

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1 s for highhardened steels NSBHATH/EMSBHATH Carbide Oil Hole Non Step Borer H for high hardness material Epoch Micro Step Borer H New Product News No.E5 7

2 Achieves highperformance drilling of highhardened steels. Features of NSBHATH High toughness and cutting edge strength for highhardened steels. Smooth removal of chips by special flute shape. Application range Applications NSBHATH Carbon steel Tool steel Alloy steel Prehardened steel Hardened steel 5~HC Hardened steel ~5HC Hardened steel 5~7HC Mold making 部品加工 Parts processing φ~φ [ 5 Items] Design Increased tool toughness and cutting edge strength Center thickness Helix Center thickness: arge ow helix Deformation simulation by quasi model Torsional displacement for simulation using the thrust and torque values generated when boring steel material with a hardness of HC for a tool model with a tool diameter of φ. and a groove of mm. Thrust load: N; Torque load: Ncm NSBH Conventional P:9 F:7 各方向での変形量各方向での変形量タイプ : 各方向での変形量 (Y 軸 ) タイプ : 各方向での変形量 (Y 軸 ) 単位 :m 単位 :m 座標系座標系時間 : 時間 : カスタム Max: Max: Min:. Min:.9 3// : 3// :9 e5 e5 e5 e5 e5 e5 e5 e Torsional displacement:... % lower than conventional Torsional displacement:.5. Cutting force Tool deformation and deflection due to large cutting force while boring highhardened steel were suppressed. Work material:dac(hc) & size:nsbhath(φ. ) n=3,3min vc=m/min v f=9mm/min f=.mm/rev Cutting depth =5mm Internal water base coolant NSBH Conventional A Conventional B Cutting force Broken Start drilling Time (S) Start drilling Time (S) Compared to conventional, cutting force variation on drilling is less and smooth drilling is achieved. Start drilling Time (S) Thrust(N) Torque(Ncm) Improved heatresistant coating Please refer to page for ATH coating. coating

3 3 Carbide Oil Hole Non Step Borer H for High Hardness Material ine Up Carbide Size (mm) NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBH3ATH NSBH3ATH NSBH3ATH NSBH3ATH NSBH3ATH NSBH3ATH NSBH3ATH NSBH3ATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH :Stocked items. :Stocked by specified distributor. Contact with our sales department. : φ : : φ Plane, SX thinning Tool tolerance NSBHATH Tool Tolerance...<..< Cutting depth should be set to "under flute x" as a general rule. NSBH ATH NSBH3ATH NSBH3ATH NSBH3ATH NSBH3ATH NSBH3ATH NSBH3ATH NSBH3ATH NSBH3ATH NSBH3ATH NSBH3ATH NSBH3ATH NSBH3ATH NSBH3ATH NSBH3ATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBH3ATH NSBH3ATH NSBH3ATH NSBH3ATH NSBH3ATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH Point α Size (mm) Point α Tip :α (mm) ~ ow Helix End Mill

4 Carbide Oil Hole Non Step Borer H for High Hardness Material ine Up Carbide NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBH5ATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBH5ATH NSBH5ATH NSBH5ATH NSBH5ATH NSBH5ATH NSBH5ATH NSBH5ATH NSBH5ATH NSBH5ATH NSBH5ATH NSBH5ATH NSBH5ATH NSBH5ATH NSBH5ATH NSBH5ATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBH5ATH NSBH5ATH NSBH5ATH NSBH5ATH NSBH5ATH NSBH5ATH NSBH5ATH NSBH5ATH NSBH5ATH NSBH5ATH NSBH5ATH NSBH5ATH NSBH5ATH NSBH5ATH NSBH5ATH NSBH5ATH NSBH5ATH NSBH5ATH NSBH5ATH NSBH5ATH NSBH5ATH NSBH5ATH NSBH5ATH NSBH5ATH NSBH5ATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH :Stocked items. :Stocked by specified distributor. Contact with our sales department. Size (mm) Cutting depth should be set to "under flute x" as a general rule. NSBH ATH Point α Size (mm) Point α ~ : φ : : φ Plane, SX thinning Tool tolerance NSBHATH Tool Tolerance...<..< Tip :α (mm) ow Helix End Mill

5 5 NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBH7ATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBH5ATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBH5ATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBH5ATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBH5ATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBH5ATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBH5ATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBH5ATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH :Stocked items. :Stocked by specified distributor. Contact with our sales department. Size (mm) Cutting depth should be set to "under flute x" as a general rule. NSBH ATH Point α Size (mm) Point α

6 Carbide Oil Hole Non Step Borer H for High Hardness Material ine Up Carbide NSBH5ATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBH5ATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBH5ATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBH9ATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH Size (mm) Cutting depth should be set to "under flute x" as a general rule. NSBH ATH Point α Size (mm) Point α ~ :Stocked items. :Stocked by specified distributor. Contact with our sales department. : φ : : φ Plane, SX thinning Tool tolerance NSBHATH Tool Tolerance...<..< Tip :α (mm) ow Helix End Mill

7 7 NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH Size (mm) Cutting depth should be set to "under flute x" as a general rule. NSBH ATH Point α Size (mm) Point α :Stocked items. :Stocked by specified distributor. Contact with our sales department.

8 ecommended Cutting Conditions Carbide Oil Hole Non Step Borer H for High Hardness Material NSBHATH Work materials Hardness (HC) Cutting speed vc (m/min) Feed rate f (mm/rev) φ φ φ φ φ φ Prehardened steels ~5 ~~.~.5.~..~.~..~.3~ Hardened steels 5~ ~~.~.3.~..5~.9.~..~.~ ~ ~.~..~..3~..~..~..~. Setting of Cutting Conditions Be sure to refer to the drilling process as follows when selecting a tool. These standard cutting conditions are intended as approximate values for cutting conditions. For actual drilling, cutting conditions should be adjusted according to the drilling shape, purpose, machine used, etc. NSBHATH series have positive tolerance on the diameter. Please select guide and longhole drills out of NSBHATH series. Mixed use of conventional WHNSBTH series harms drilling stability due to negative tolerance of WHNSBTH series. When changing the tool, use collet free from flaws and stains and attach the tool firmly so that its runout is.mm or less. Works should be gripped firmly to prevent deformation, deflection and vibration. Upon drilling hole, dwell time at the final depth helps chip removal. If cutting chips are not smoothly removed, perform step drilling at depth around the tool diameter. Upon matters in chip removal during drilling, please refer to following countermeasures; Keep vc and lower feed. (The thinner chip for better removal) Keep f and higher vc. (Higher rotation for better removal) At the time of throughhole reduce feed rate f to onehalf or less. Internal supply of water based coolant is recommended. The above cutting conditions are based on the use of a water base coolant diluted to a maximum of times. When coolant dilution exceeds times, decrease the cutting speed to the lowest in the specified range. When the tool diameter is φ5. or less, the coolant pressure should be. MPa or higher, and when the diameter is over φ5., the pressure should be.5 MPa or higher. When performing MQ (mist) machining, depending on the amount or conditions of spray from the tool, it may be necessary to reduce the cutting speed in order to drilling. When oil base coolant is used, reduce the cutting speed to a speed lower than the lowest speed in the specified range. Take the greatest care to avoid smoke or ignition due to heating of chips and the tool. Perform sufficient maintenance of coolant systems to prevent clogging of the oil hole. ing process ing of pilot hole (guide hole) ecommended tools : Use the product with the shortest flute for each size of product. (Point degree NSBHATH) ing depth:tool diameter times When using a product for which the flute is more than /D=, bore a pilot hole first. Please refer to 9page for attention for use Supplying coolant during lowspeed revolution eading to the pilot hole at low speed (n=~ min ) Stop.~5. mm before the end of the pilot hole. When a long tool (mm or longer) is used, position the tool to the pilot hole at low revolution speed (n=min or less). 3 Highspeed revolution for drilling feed (NSBHATH) After confirming that the revolution speed is increasing at the specified rate, start cutting. Finish drilling Withdraw the tool at low speed. (n=~ min ) When a long tool (mm or longer) is used, withdraw the tool at low revolution speed (n=min or less).

9 Attention for use egarding pilot hole drilling for NSBHATH The shortest NSBHATH among each diameter series has point of, though others have that of. It is recommended first to drill a guide hole with NSBHATH of point before deep boring. +5 gives better tool edge allocation onto work material. Example Hole diameter:φ mm Pilot hole NSBHATH Deep hole drilling NSBHATH For deep hole drilling For pilot hole: egarding tolerance of diameter for NSBHATH Diameter of NSBHATH has a positive tolerance inorder to compensate hole shrink after boring, and keep clearance for ejector pin of die mold. WHNSB and WNSB have negative tolerance of diameter. Use of WHNSB or WNSB for pilot hole may cause diameter interference with NSBHATH. Diameter tolerance ~+. < ~+.5 <.3 ~+.5 The intention of added items NSBHATH Expanded lineup! For pilot hole of tapping products added. Tapping is possible by NSBHATH and carbide threading cutters combination easily. Nominal M3 M M5 M M M M M Screw size Pitch :Stocked items. NSBHATH NSBHATH NSBHATH NSBH3ATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH NSBH5ATH NSBH5ATH NSBHATH NSBHATH NSBHATH NSBH5ATH NSBH5ATH NSBH5ATH NSBH5ATH NSBHATH NSBHATH NSBHATH NSBHATH NSBHATH :Stocked by specified distributor. Contact to sales office. Adapted carbide threading cutters ETPN ET7.5PN ET.7PN ET.7PN ET.PN ET..5PN ET.PN ET.5PN ET.5PN ET.5PN ET.5PN ET.55PN ET.75PN ET.75PN Not applicable Trouble shooting Phenomenons Factors Actions Not stable tool life. It will break. Performance fell because the drill for pilot holes was not used. Hit to pilot hole, because WHNSB or WNSB was used pilot hole drilling. has runout. ess chip removal. ess coolant clogged chip in the hole. Please use drill of wide point one for pilot hole drilling. Please use same series drills for pilot hole drilling and normal drilling. Please set drill runout less than.mm. Please change to collet of free from dent or dirt for increase accuracy. Please use step drilling. Please use dwell process about a second on step drilling. Please check coolant system. Please use coolant steadily. 9

10 Field data, egrinding Achieved long tool life with highperformance drilling of highhardened steels. ng for DAC (HC), (φ mm) Work material:dac(hc) & size :NSBHATH(φ. )Cutting depth =mm(pilot hole mm) Coolant:Internal water base coolant n=3,3min vc=m/min vf=9mm/min f =.mm/rev NSBHATH Conventional A Conventional B N=: Chipping at 5th drilled hole Broken at st drilled hole No. of holes (pcs.) ing for equivalent to SUSJ(5HC), (φ mm) Work material:equivalent to SUSJ (5HC) & size :NSBHATH(φ. ) Cutting depth =mm (Pilot holemm) Coolant:Internal water base coolant n=3,3min vc=m/min vf=9mm/min f =.mm/rev NSBHATH A Good wear condition (Number of holes drilled: holes) B Magnified view of Area A Magnified view of Area B Conventional A Chipping at 5th drilled hole B Magnified view of Area A Magnified view of Area B Cutting edge conditions 3 ng for DACMAGIC (HC), (φ 5mm) Work material:dacmagic(hc) Tool:NSBHATH φ. Cutting depth = 5mm (Pilot holemm) Nonstep Coolant:Internal water base coolant n=3,3min vc=m/min vf=9mm/min f =.mm/rev Flank face Magnified view of outer circumference corner Wear width =.3mm Cutting edge conditions (After drillng holes)

11 Achieved highgrade holes and good chip removal. Wall surface conditions (φ 5mm) Surface roughness measured at locations per hole. Work material:dacmagic(hc) & size :NSBHATH(φ. ) Cutting depth =5mm Coolant:Internal water base coolant f =.mm/rev Maximum height roughness z(μm).... vc=m/min Condition at depth of around mm Possible long tool life drilling with good accuracy Inside diameter (φ 5mm) Work material:dacmagic(hc) & size :NSBHATH(φ. ) Cutting depth =5mm Coolant: Internal water base coolant n=3,3min vc=m/min vf=9mm/min f =.mm/rev Degree of expansion (mm) NSBH: Measurement at around 3mm from hole top Conventional: Measurement at around 3mm from hole top NSBH: Measurement at around 5mm from hole top Conventional: Measurement at around 5mm from hole top Conventional is chipping at th drilled hole. No. of holes (pcs.) egrinding Performance may deteriorate of the initial performance due to the method of regrinding and recoating. Without coating after regrinding, performance may be further reduced and cause chipping or breakage of the drill. It is recommended that you ask us to regrind and recoat your drill. 5 Width of horning (.5 ~.) Dia. Cutting face Finish the cutting edge surface so that its roughness is.s or less and the lip height difference is.mm or less. Flank 7 Please inquire drill regrinding/recoating to sales office.

12 Features of EMSBHATH Achieved smalldiameter deep drilling of highhardened steels by using special substrate, shape, and coating. Application range Applications EMSBHATH Carbon steel Tool steel Alloy steel Prehardened steel Hardened steel 5~HC Hardened steel ~5HC Hardened steel 5~7HC Mold making Parts processing φ.~φ.[ Items ] Design Special flute design for highhardened steels enables smooth drilling. Flow of cutting chips is also smooth. Special edge shape for highhardened steels Chipremoval stopper Chips are reliably removed, improving guide characteristics during drilling. Chipremoval stopper technology + highrigidity shape enables highaccuracy drilling of minute holes. Chip removal flow direction PAT. No. 3 Chip removal flute Chip stopper Highrigidity shape Improved heatresistant coating Features coating The heatresistant TH coating used previously has further evolved. A laminated structure is used to achieve both heat resistance and adhesion strength. Achieves even higher hardness (HV) than before! Exhibits good abrasion resistance. (Hardness of conventional highhardness coating: HV) Achieves long life for cutting highhardened materials of HC or higher such as plastic molds, diecast molds, etc. Crosssection photograph of ATH coating layer structure High hardness layer 5nm High heat resistance layer Conventional coating ATH coating Even finer particle size is nano order. Pat.No.

13 3 ine Up Epoch Micro Step Borer H Carbide : φ φd φ Tolerance on EMSBH ATH Size(mm) Neck D Size(mm) Neck D EMSBHATH EMSBHATH EMSBH3ATH EMSBHATH EMSBHATH EMSBH3ATH EMSBHATH EMSBHATH EMSBH3ATH EMSBH5.5ATH EMSBH53ATH EMSBH5.5ATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBH3ATH EMSBHATH EMSBH9ATH EMSBH33ATH EMSBH3ATH EMSBH39ATH EMSBH33ATH EMSBH3ATH EMSBH39ATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBH5ATH EMSBHATH EMSBH5ATH EMSBH55ATH EMSBH5ATH EMSBH55ATH EMSBH55ATH EMSBH5ATH EMSBH55ATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBH7ATH EMSBHATH EMSBHATH EMSBH77ATH EMSBH7ATH EMSBH7ATH EMSBH77ATH EMSBH7ATH EMSBH7ATH :Stocked items. (Note) For products with tool dimensions other than those listed above, separate consultation is needed. Please contact to sales office. :Stocked by specified distributor. Contact to sales office. < h ow Helix

14 ine Up Epoch Micro Step Borer H φ φd φ EMSBH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBH9ATH EMSBHATH EMSBH7ATH EMSBH99ATH EMSBH9ATH EMSBH97ATH EMSBH99ATH EMSBH9ATH EMSBH97ATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBH5ATH EMSBHATH EMSBH5ATH EMSBH55ATH EMSBH5ATH EMSBH55ATH ATH Size(mm) Neck D Carbide EMSBH55ATH EMSBH5ATH EMSBH55ATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH.5... ow Helix < h : +. Tolerance on +. Size(mm) Neck D :Stocked items. :Stocked by specified distributor. Contact with to sales office. (Note) For products with tool dimensions other than those listed above, separate consultation is needed. Please contact to sales office.

15 5 Epoch Micro Step Borer H EMSBHATH ecommended Cutting Conditions Prehardened steels (~5HC) Hardened steels (5~HC) EMSBHATH EMSBHATH EMSBH3ATH EMSBHATH EMSBHATH EMSBH3ATH EMSBHATH EMSBHATH EMSBH3ATH EMSBH5.5ATH EMSBH53ATH EMSBH5.5ATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBH3ATH EMSBHATH EMSBH9ATH EMSBH33ATH EMSBH3ATH EMSBH39ATH EMSBH33ATH EMSBH3ATH EMSBH39ATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBH5ATH EMSBHATH EMSBH5ATH EMSBH55ATH EMSBH5ATH EMSBH55ATH EMSBH55ATH EMSBH5ATH EMSBH55ATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH ,,,, 5, 5, 5, 3, 3, 3,,,,,,,,,, ,,,,,,,,,,,3,3,3,,, 9,5 9,5 9, evolution n min Feed rate v f mm/min Step feed (mm) Tool evolution n min Feed rate v f mm/min Prehardened steels (~5HC) Hardened steels (5~HC) evolution n min Feed rate v f mm/min Step feed (mm) Tool evolution n min Feed rate v f mm/min EMSBH7ATH EMSBHATH EMSBHATH EMSBH77ATH EMSBH7ATH EMSBH7ATH EMSBH77ATH EMSBH7ATH EMSBH7ATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBH9ATH EMSBHATH EMSBH7ATH EMSBH99ATH EMSBH9ATH EMSBH97ATH EMSBH99ATH EMSBH9ATH EMSBH97ATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBH5ATH EMSBHATH EMSBH5ATH EMSBH55ATH EMSBH5ATH EMSBH55ATH EMSBH55ATH EMSBH5ATH EMSBH55ATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH EMSBHATH , 9, 9, 9, 9, 9, 9, 9, 9,,,, 5,7 5,7 5,7 5, 5, 5, , 9, 9,,7,7,7,,,,,,,,, 3, 3, 3, Note Please understand ing method and attentions page, and use EMSBHATH.

16 ing process and attentions Setting of cutting conditions 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. Please use EPDBEHATH as a starter. Please always use G3 mode (peck drilling cycle). For drilling hardened steel, when drilling holes with an /D of D, it is recommended to use a D tool for predrilling. In addition, when the diameter is less than φ, in addition to predrilling with a D tool, further predrilling with a D tool is also recommended. Example: When drilling a φ. D hole in SKD (HC), etc. () conforms to throughhole drilling depth. When drilling through holes, drill the through hole to a depth of between % and % of the diameter from the tip of the tool. Ex.: For work thickness T=5mm and tool= Ø 5mm, drilling depth should be 5.mm (from tip of tool). Watersoluble or oilbased coolant should be used to ensure chip removal. Please pay attention on the below ing process and attentions on drilling. <About starter> Use of a special starter (Epoch Deep Ball Evolution Hard EPDBEHATH) is recommended. Be sure to perform step drilling using a G3 program. ing depth: Be sure to perform drilling to a depth of % of the tool diameter. (For example,.mm deep for a tool diameter of φ.mm) Use step drilling. Depth to % of diameter. <About machining programs> Always perform drilling using a G3 program (Peck drilling cycle). ecommended reference position:.5 to.mm However, for aspect ratios of greater than D, the position should be set as % of the tool below the surface of the work. (Ex.: For Ø mm below, reference position =.3mm) ecommended approach distance:.5mm Change according to the machine parameter setting screen. If these values are large, machining time may become longer. Approach distance eference position <About coolants> <About fast feed rates> Oilbased or watersoluble coolants are recommended. When using, set it up so that the coolant hits the flute tips. When the below is long, if the fast feed rate is too fast, bit may be broken. ecommended: m/min. or less (for greater than D, 5m/min. or less) egarding tolerance of diameter for EMSBHATH Diameter of EMSBHATH has a positive tolerance inorder to compensate hole shrink after boring, and keep clearance for ejector pin of die mold. Conventional EMSBS has negative tolerance of diameter. Diameter tolerance Trouble shooting Phenomenons Factors Actions Please hit coolant to the flute steadily. It will break. ess chip removal. Please keep feed speed,and increase revolution speed. Improve chip removal. Hole will bend. Please added drilling process by short EMSBH after drilling by starter. Not stable tool life. has runout. Please set drill runout less than.5mm. Please change to collet of free from dent or dirt for increase accuracy.

17 Special starter Tolerance on : ight table s Helix : Tolerance on shank:h5 EPDBEH. ATH Size(mm) Ball Tool Neck radius D EPDBEH.ATH EPDBEH.ATH EPDBEH.ATH EPDBEH5.ATH EPDBEHATH EPDBEHATH EPDBEHATH EPDBEH3ATH EPDBEH3ATH EPDBEH3ATH EPDBEH.75ATH EPDBEH.75ATH EPDBEH.75ATH EPDBEH5ATH EPDBEH5ATH EPDBEH5ATH EPDBEHATH EPDBEHATH EPDBEHATH :Stoked Items. Neck :Stocked by specified distributor. Contact to sales office. φ Back taper on peripheral edge ~3 φd Neck Size(mm) Ball Tool Neck radius D EPDBEH7ATH..7.7 EPDBEH7ATH EPDBEH7ATH EPDBEHATH...77 EPDBEHATH.5..7 EPDBEHATH...79 EPDBEH9ATH.9..7 EPDBEH9ATH EPDBEH9ATH EPDBEHATH..9 EPDBEHATH...97 EPDBEHATH...9 EPDBEH5ATH EPDBEH5ATH EPDBEH5ATH EPDBEH3ATH EPDBEH3ATH EPDBEH3ATH φ Ball radius < ( mm ) Tolerance on ±.3 ±.5 Neck Cutting condition for starter (EPDBEHATH) Tool Prehardened steels (~5HC) evolution n min ,39 3,39,,93,77, 5, Feed rate Step feed v f mm/min mm , Hardened steels (5~HC) 回転数 n min,,7,5 7,5, 5,3 送り速度 v f mm/min 5 ステップ量 ( mm ) Step feed.3.5, Hardened steels (~HC) 回転数 n min,,7,5 7,5, 5,3 送り速度 v f mm/min 5 ステップ量 ( mm ) Step feed Tool Prehardened steels (~5HC) evolution n min Feed rate Step feed v f mm/min mm 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. Watersoluble or oilbased coolant should be used to ensure chip removal. Always use with a G3 program (Peck drilling cycle). Hole depth: Be sure to drill to a depth of % of the diameter. (Ex.: For Ø., depth=.mm),5,39 3,5 3,,5, Hardened steels (5~HC) 回転数 n min,97 3,7 3,3 3,,5, 送り速度 v f mm/min ステップ量 ( mm ) Step feed Hardened steels (~HC) 回転数 n min,97 3,7 3,3 3,,5, 送り速度 v f mm/min ステップ量 ( mm ) Step feed

18 Field data Merits of drilling hardened steel Example Ejector pin drilling of SUSJ (5HC) die Conventional processing ing of Mild steel Heat treatment Finishing by wire EDM Proposal ing of hardened steel Process to be /3. By stock hardened blanks, delivery time can be reduced. Comparison of process cost Example: Fine hole drilling of SUSJ (5HC); Hole diameter: φ; Hole depth: mm (/D= ); holes Tool name or process C Nl Tml Cl Tt Mc Xl Tool unit price Tool life Hole count per lot Processing time per lot Tool cost per lot Tool replacement time Machine cost Processing cost per lot Processing cost ratio ( /pcs.) (hole/pcs.) (hole/lot) (min./lot) ( /lot) (min./pcs.) (Assumed value /min.) ( /lot) (%) Monthly processed hole count Monthly processing cost for current processing time (hole) ( /month) Process cost is reduced by about % compared to conventional processing!! Conventional process condition (Electric discharge machining) Current processing Proposal Fine hole electrodischarge machining EMSBH5ATH, 7,, 5, 9, %.% 5, 9, Electrodischarge machining ❶ Fine hole electrodischarge electrode φ.3 mm ❷ Heat treatment ❸ Finishing by wire EDM Electrode unit price: Unit price of φ.3 copper pile electrode = Processing time: Electrodischarge machining + wire EDM = minutes Tool life: holes per electrode = electrodes required New specifications suitable for highhardened steels provide high performance. ng for φ SUSJ (5HC) Work material:susj(5hc) Tool:φ under 5mm(/D=D) Cutting depth =5 mm Coolant:External water base coolant n=,min vc=5m/min vf =mm/min f =.5mm/rev Step=.5mm EMSBS 3 EMSBS EMSBH EMSBH 5 No. of drilling holes Although EMSBS broke on the 3rd hole, EMSBH was not broken up to the 5th holes.

19 ng for φ Equivalent to SUSCH(HC) Work material:equivalent to SUSCH (HC) Tool:EMSBH5TH (/D=D) Coolant:External water base coolant n=,min vc=5m/min vf=mm/min f =.5mm/rev Step =.5mm ing time = sec./hole Hole condition after th drilling process. ed hole count: holes A way in A way out Possible drilling of up to holes of /D= on HC material! 3 ng for φ Prehardened steels (HC) Work material:prehardened steel (HC) Tool:φ 5mm(/D=D) Cutting depth =5mm Coolant:External water base coolant n=,min vc=5m/min vf=mm/min f =.5mm/rev Step =.5mm EMSBS 3 EMSBH 39 No. of drilling holes Although EMSBS broke on the 3th hole, EMSBH was not broken up to the,39th holes. Condition of EMSBH cutting edge (after processing, holes) esult of drilling for φ. equivalent to SUSJ (5HC) Work material:equivalent to SUSJ (5HC) Tool:Special EMSBHATH (/D=D) Tolerance :+. +.mm Coolant:External water base coolant n=5,3min vc=3.5m/min vf=3mm/min f =.mm/rev Step=.mm T=mm Diameter of ejector pin:.7mm mm A B C D Dia.wayin A:.3mm B:.3mm Dia.wayout A:.mm B:.3mm Work material :SUSJ(5HC) C:.5mm D:.mm C:.mm D:.mm Hole diameters are quite similar to diameter of tool, with less discrepancy between wayin and wayout. 9

20 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, td. in Japan. Attentions 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. Be 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 () Before 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. 3. Cautions during use () Before 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. (3) 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. (5) 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. eplace 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. (3) 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 yogoku Bldg. F, 3, yogoku, Sumidaku, Tokyo, Japan International Sales Dept. : TE +3 FAX + Official Web Site Database for selection Cutting Tool Products TOO SEACH Search Web Europe MMC Hitachi Tool Engineering Europe GmbH Itterpark, 7 Hilden,Germany. Tel +9()3 Fax +9()3 MITSUBISHI MATEIAS U.S.A. COPOATION DETOIT OFFICE Customer service Gardenbrook oad, Suite, Novi, MI 3753 U.S.A. Tel +() Fax +() 7 CHICAGO OFFICE 3B North Plum Grove oad, Schaumburg, I 73 U.S.A. Tel +(7) 57 Fax +() 7 China MMC Hitachi Tool Engineering(Shanghai),td. F, Chuang Xing Financial Center, Nanjing D (West) Shanghai, China 3 Tel +()5 Fax +() MMC Hardmetal(Thailand)Co.,td. HTDivision CTI Tower Floor, 9/3 atchadapisek oad, Klongtoey, Klongtoey, Bangkok, Thailand Tel: +() Fax: +() Hitachi Metals (India) Pvt. td. Plot No 9 & 95,Sector, IMT Manesar,Gurgaon, Haryana, India Tel +95 Fax +95 America Thailand India DISTIBUTED BY: 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 JAPAN 7(K) :FP