Каталог Sumitomo сверла и развертки - страница 103

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SEC-MultiDrill SMD Type (Structural Steel) Carbon Steel, Aloy Steel Tempered Hardened Steel Stainless Ti Heat-resistant Cast Ductile Aluminum Copper Composite W/ Oil Hole 3D Up to 0.28% From 0.29% Steel Up to 45HRC From 46HRC Steel Alloy Steels Iron Cast Iron Alloy Alloy CFRP Indexable MB G G ● Drill Head ● Mounted Figure Only use a MB type head with a B3 type holder. Indexable Head 150° DC h7 150° DC h7 DCONh6 MB Type LU LS PL LF OAL ● Holder Dimensions DCONh6 ■ Drill Heads MB Type ø24.5, ø24.7mm (mm) ■ Drill Heads MB Type ø26.5, ø26.7mm (mm) Diameter Stock Cat. No. Shoulder Length Tip Applicable Holders Diameter Stock Cat. No. Shoulder Length Tip Applicable Holders DC(mm) LF PL DC(mm) LF PL 24.5 D SMDT 2450 MB 14.1 3.3 SMDH 240B3 26.5 D SMDT 2650 MB 15.3 3.6 SMDH 260B3 24.7 D 2470 MB 26.7 D 2670 MB Grade: ACX80 Grade: ACX80 ■ Holder ■ Dimensions of Assembled Drill with SMD Type ■ Spare Parts Dimensions (mm) Cap Screw Wrench Diameter Stock Cat. No. Total length DC(mm) Effective Length Shank Boss Side Lock Flat Nm LU OAL LS DCSFMS DCON Above 23.8 to 24.8 SMDH 240B3 90 173 60 32 BXD03512IP 2.79 TRDR15IP D Q to 3.72 Above 25.8 to 26.8 260B3 96 179 60 32 BXD04014IP 4.14 TRDR20IP D Q to 5.52 Inquire about production of holders not listed in stock. ■ Improved Lubricity with Coolant MTL/MEL MB Holder Coolant supply to the tip of the drill has been improved. Head J Drilling Coolant Solid Special Comparison of Cutting Resistance (Thrust Force) Indexable 7,000 Thrust increases at 7,000 Stable drilling at Reamer start of hole start of hole 6,000 6,000 Brazed (N) 5,000 (N) 5,000 Others Force 4,000 MTL/MEL Force 4,000 MB Cutting 3,000 Cutting 3,000 2,000 2,000 1,000 1,000 0 0 2 4 6 8 10 12 14 2 4 6 8 10 12 14 Cutting Time (sec) Cutting Time (sec) Work Material: SS400, Drill Diameter: ø24.7, Cutting Conditions: vc=70m/min, f=0.35mm/rev, Coolant: MQL * Due to the difference in oil holes and cutting edge positions, MTL/MEL type drill heads are not compatible to use with B3 type drill holders and similarly incompatible for MB type drill heads to use M/L/D type drill holders.   N m Recommended Tightening Torque(N·m) J81