BNBX Type BNBX L103. Small Hole Boring Bars SUMIBORON

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Jacob Patterson
5 years ago
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Small ole BNBX Type BNBX Boring & Facing Brazed 3 Newly developed high rigidity slit-clamping system, excellent for small hole boring Maximum overhang of /D=5 possible.

for hardened steel and for sintered alloy are available Min. Dia. Diameter eight ength Nose radius Applicable DMIN Sleeves BNBX 020R 2.5 2.0 1.8 40 0.2 BX 2016 025R 3.0 2.5 2.2 40 0.2 BX 2516 030R 3.

1 Small ole BNBX Type BNBX Boring & Facing Brazed 3 Newly developed high rigidity slit-clamping system, excellent for small hole boring Maximum overhang of /D=5 possible. Minimal bar deformation produces excellent boring accuracy. Minimal vibration produces superior surface finish. Easy bar indexing without sleeve removal. for hardened steel and for sintered alloy are available Min. Dia. Diameter eight ength Nose radius Applicable DMIN Sleeves BNBX 020R BX R BX R BX R BX R BX R BX R BX R BX R BX 6016 BNBX 065R BB R BB R BB R BB 816 Adaptor Sleeves Recommended Cutting Conditions Spindle speed n Depth of cut a p More than 2,000min to 0.2mm Diameter Applicable Bar BX BNBX 020R BNBX 025R BNBX 030R BNBX 035R BNBX 040R BNBX 045R BNBX 050R BNBX 055R BNBX 060R BB BNBX 065R BNBX 070R BNBX 075R BNBX 080R * BNBX bars can be use with BB type sleeves, however, BX type sleeves are recommended for bars below ø6mm. ow speed may cause chattering and chipping on the cutting edge. Excessive depth of cut may cause larger tool deformation resulting in deterioration of bore accuracy. Parts (For Sleeve) Screw Set Screws es Applicable Sleeves BFTX0409N BT06035T BT0404 BT06035T TRD (For Torx holes) TRD15 Important notes (1) Shorten overhang as much as possible (Max. /D=5). (2) Even minor workpiece run-out may affect tool life. (3) Select a boring bar with a diameter closest to the bore diameter. (4) Although it is difficult to increase the rotational speed in small diameter boring applications, higher speeds are recommended whenever possible. BX2 BX3 BX4 BX5 BX6 BT0404 T020 BB T Feed rate f 0.01 to 0.1mm/rev Recommended Tightening Torque (N m) mark : To be replaced by new item (Please confirm stock availability) 103

Small ole BNZ Type BNZ Boring & Facing ø7mm minimum bore diameter with special insert. igh rigidity indexable type boring bar with full carbide holder.

2 Small ole BNZ Type BNZ Boring & Facing ø7mm minimum bore diameter with special insert. igh rigidity indexable type boring bar with full carbide holder. Economical and easy tool management with oneuse type inserts. olders Parts (for older) 5 Min. Dia. Diameter eight ength Rake angle DMIN BNZ 606R R R R R R Screw BFTX 0204N 0.5 TRX06 Inserts are not included. Sleeves Parts (for Adapter Sleeve) Diameter Applicable olders BB BNZ 606R BNZ 608R Set Screw BT0404 T020 Inserts (1 piece pack) NU- ZNEX Recommended Cutting Conditions Spindle speedn Depth of cuta ø More than 2,000min to 0.2mm BNC2010 BNC2020 BN1000 ow speed may cause chattering and chipping on the cutting edge. Excessive depth of cut may cause larger tool deformation resulting in deterioration of bore accuracy. NU-ZNEX NC-ZNEX E E 0.4 NC-ZNEX T T 0.4 Nose Radius Inserts (10 pieces pack) T-NU- ZNEX ø Important notes (1) Shorten overhang as much as possible (Max. /D = 5). (2) Even minor workpiece run-out may affect tool life. (3) Select a boring bar with a diameter closest to the bore diameter. (4) Although it is difficult to increase the rotational speed in small diameter boring applications, higher speeds are recommended whenever possible. BN1000 Nose Radius T-NU-ZNEX Feed ratef 0.03 to 0.1mm/rev 104 Recommended Tightening Torque (N m)mark : To be replaced by new item (Please confirm stock availability)

Small ole BNB Type BNB General Turning & Facing igh rigidity full carbide boring bar Minimal bar deformation produces excellent boring accuracy. Minimal vibration produces superior surface finish.

3 Small ole BNB Type BNB General Turning & Facing igh rigidity full carbide boring bar Minimal bar deformation produces excellent boring accuracy. Minimal vibration produces superior surface finish. Full-Top insert enables 3 cutting edges Can be used with SUMIDIA inserts for non-ferrous metal machining Now with economical one-corner NF Type SUMIDIA insert olders 2 Min. Dia. Diameter eight ength Rake angle DMIN BNB 508R R R R R Inserts are not included. Inserts *2 60 TBGN ø SUMIDIA BNX10 BNX20 BN350 BN500 DA150 DA1000 TBGN B B B BSTN * BSTN * BSTN *1 0.8 NF-TBGN * *2 0.4 Nose Radius Parts Clamp Bolts Nuts B0306 BNBW-2 FBUP3- BNBC A0-9 BNBW-4 T020 B0310 BNBW-7 Applicable olders BNB 508R BNB 510R BNB 512R BNB 516R BNB 520R *1 TBGN -BSTN is only available in BNX20 grade and it has a smaller negative land angle (-15 ) as compared to the B type (-25 ). *2 NF-TBGN is a single corner insert. (This is not a Full-Top insert) Cutting Performance older Shank 30 Stable Cutting Steel Shank 20 Carbide Shank BNB520R 10 BNB516R BNB512R BNB508R Vibration occurs older Shank Stable Cutting Interrupted cut (SCM415) Continuous cut (SKD61) BNB525R BNB520R BNB516R BNB512R Vibration occurs Tool Overhang Tool Overhang Work materials : SKD61 (60RC) Insert : TBGN060104B Conditions : v =100m/min f =0.1mm/reva =0.2mm Work materials : SCM415 (61RC) ø45 (6U-grooves) Insert : TBGN060104B Conditions : v =100m/min f =0.1mm/reva =0.2mm mark : To be replaced by new item (Please confirm stock availability) 105

4 Small Diameter BSME Type Characteristics Achieves minimum machineable diameter of ø2.5 mm for hardened steel internal machining Achieves high precision cutting edge positioning through newly developed clamp mechanism Achieves high performance machining comparable to grinding machining with further cutting in the small hole region Brazed type BSME type handles machining diameters from ø2.5 mm up to ø5.0 mm Indexable insert type SEXC type handles machining diameters from ø4.0 mm up to ø6.0 mm BSME Internal / Facing Fig 1 Fig 2 CDX CDX Tools Grades Min. Dia. Diameter Neck diameter ength Cutting edge Depth of cut Nose radius DMIN CDX R BSME R/25020D2S BSME R/25020D3S BSME R/25020D4S BSME R/30020D2S BSME R/30020D3S BSME R/30020D4S BSME R/35020D2S BSME R/35020D3S BSME R/35020D4S BSME R/40020D2S BSME R/40020D3S BSME R/40020D4S BSME R/45020D2S BSME R/45020D3S BSME R/45020D4S BSME R/50020D2S BSME R/50020D3S BSME R/50020D4S Fig 1 2 Applicable Sleeves BSM6020 BSME type requires separately sold sleeve BSM6020. Sleeves Alignment Jig* Newly Developed Clamp Mechanism ø20 igh precision cutting edge positioning is achieved through a combination of tool/holder with taper on the rear end, and a sleeve with an internal positioning pin. (Common to BSME Type / SEXC Type) Set screw Dia. ength Set Screw Tool / older Back end taper face BSM BT0506 T025 AFBSM60 Sleeve Positioning pin 106 Sleeve is sold separately. * This is a jig for centering the sleeve when installing the sleeve into the sleeve holder.

5 Small Diameter SEXC Type SEXC Internal / Facing CDX Parts olders Neck Min. Dia. Diameter diameter ength Cutting Rake edge Depth of cut angle Applicable Clamp R DMIN CDX Sleeve Bolts E06D2-SEXC R/03-04P E06D3-SEXC R/03-04P MIB1.6-2 E06D2-SEXC R/03-05P E06D3-SEXC R/03-05P BSM6020 MIB E06D2-SEXC R/03-06P E06D3-SEXC R/03-06P MIB1.6-3 Inserts Sleeves 0.2 SDBSM SEXC type requires separately sold sleeve BSM6020. Alignment Jig* ø3.31 ø Grades s Nose radius 2NU-ECXA 030X02E 0.2 2NU-ECXA 030X The part number suffixes stand for the following: E: With honing : Sharp edge Application Ranges Machining accuracy Brazed type BSME Type Bore dia. ength Set Screw BSM BT0506 T025 Sleeve is sold separately. Indexable insert type SEXC Type Recommended Cutting Conditions Main axis rotation speed n Depth of cut ap Over 2,000 min mm AFBSM60 * This is a jig for centering the sleeve when installing the sleeve into the sleeve holder. ow speed machining may cause chattering and cutting edge chipping Extreme depths of cut may cause tool bending and degraded accuracy of dimensions. Good Machining diameter Application Examples ardened steel alloy valve component BSME BSME type demonstrates extended life of over two times the life of CBN tools from our competitors and achieves stable machining. Feed rate f mm/rev Bearing steel small automotive component SEXC SEXC type achieves 1.5 times extended life compared with brazed CBN tools from our competitors, and achieves greatly reduced tooling costs. Brazed type BSME 1,700 Indexable insert type SEXC 1,500 ø5.0 Competitor CBN tools 600 ø4.0 Competitors brazed CBN tools 1, ,000 1,500 2,000 Number of Parts (Pcs) ,000 1,500 Number of Parts (Pcs) Work material: ardened steel alloy valve part (automotive related) Tools: BSME R50020D2S6 Grade: Cutting conditionsvc135m/min7,500min -1 f=0.02mm/rev ap=0.10mm Dry Work material: Bearing steel small automotive part (60RC) older: E06D2-SEXC R/03-04P Insert: 2NU-ECXA 030X02() Cutting conditionsvc50m/min4,000min -1 f=0.02mm/rev ap=0.02mm Wet Recommended tightening torque (N m) 107

Development of SUMIBORON BN1000/BN2000 for Hard Turning

Development of SUMIBORON BN1000/BN2000 for Hard Turning INDUSTRIAL MATERIALS Development of SUMIBORON / for Hard Turning Takashi Harada*, Nozomi TsukiHara, Minori TeraMoTo, satoru kukino and Tomohiro Fukaya With the expanding use of PCBN cutting tools in hard