Каталог Sumitomo сверла и развертки - страница 85

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Навигация

  • General Features Micro Long Drills are oil-hole drills for high efficiency drilling that were developed for drilling deep, small-diameter holes. These next-generation, small-diameter hole drills feature improved strength - often a problem area with small-diameter drills.
  • Characteristics and Applications
  • Deep-hole drilling New groove shape ensures good drill rigidity and chip evacuation performance. High efficiency drilling to depths of over 20x drill diameter at over v =500mm/min (drill diameter 1.3mm, SUS416 equivalent).

f Optimal thinning and edge balance for stable chip control.

  • Long tool life Special coating provides long tool life with a wide variety of work materials. Improved chip evacuation performance makes it possible to reduce spindle load fluctuation, ensuring stable tool life.
  • Series
ApplicationCat. No.Diameter Range (mm)Drilling Depth (L/D)Content
MLDH□□□□L5ø0.8 to 2.0Up to 541 items
Deep HoleMLDH□□□□L12ø0.8 to 2.0Up to 1241 items
DrillingMLDH□□□□L20ø0.8 to 2.0Up to 2041 items
MLDH□□□□L30ø0.8 to 2.0Up to 3041 items
Guide Hole DrillingMLDH□□□□Pø0.8 to 2.0Up to 241 items
  • Recommended Cutting Conditions MLDH-P Type/MLDH-L5 Type (v : Cutting Speed m/min f: Feed Rate mm/rev)

c

Drill Diameter DC (mm)Cutting ConditionsSoft Steel Up to 200HBGeneral Steel Up to 250HBAlloy Steel Up to 300HBStainless Steel Up to 200HBCast Iron FC/FCDAluminum AlloyHeat-resistant Steels
U to 10vc40 -50- 6040 -50- 6040 -50- 6020 -30- 4040 -50- 6050 -60- 705 -10- 15
p .f0.01 -0.02- 0.030.01 -0.02- 0.030.01 -0.02- 0.030.01 -0.02- 0.030.02 -0.03- 0.040.03 -0.04- 0.060.005 -0.01- 0.02
U t 15vc40 -50- 6040 -50- 6040 -50- 6020 -30- 4040 -50- 6050 -60- 705 -10- 15
p o .f0.04 -0.08- 0.120.04 -0.08- 0.120.04 -0.08- 0.120.02 -0.05- 0.100.04 -0.08- 0.120.05 -0.10- 0.150.01 -0.03- 0.05
U t 20vc40 -50- 6040 -50- 6040 -50- 6020 -30- 4040 -50- 6050 -60- 705 -10- 15
p o .f0.06 -0.08- 0.120.06 -0.08- 0.120.06 -0.08- 0.120.04 -0.06- 0.100.06 -0.08- 0.120.08 -0.12- 0.150.01 -0.03- 0.05

MLDH-L12 Type/MLDH-L20 Type/MLDH-L30 Type Min. - Optimum - Max. Solid

Drill Diameter DC (mm)Cutting ConditionsSoft Steel Up to 200HBGeneral Steel Up to 250HBAlloy Steel Up to 300HBStainless Steel Up to 200HBCast Iron FC/FCDAluminum AlloyHeat-resistant Steels
U to 10vc40 -50- 6040 -50- 6040 -50- 6020 -30- 4040 -50- 6050 -60- 705 -10- 15
p .f0.01 -0.02- 0.030.01 -0.02- 0.030.01 -0.02- 0.030.01 -0.02- 0.030.02 -0.03- 0.040.03 -0.04- 0.060.005 -0.01- 0.02
U to 15vc40 -50- 6040 -50- 6040 -50- 6020 -30- 4040 -50- 6050 -60- 705 -10- 15
p .f0.03 -0.05- 0.070.03 -0.05- 0.070.03 -0.05- 0.070.02 -0.04- 0.070.04 -0.07- 0.100.05 -0.08- 0.120.01 -0.02- 0.03
U t 20vc40 -50- 6040 -50- 6040 -50- 6020 -30- 4040 -50- 6050 -60- 705 -10- 15
p o .f0.04 -0.06- 0.080.04 -0.06- 0.080.04 -0.06- 0.080.04 -0.06- 0.080.04 -0.07- 0.100.05 -0.08- 0.120.01 -0.02- 0.03

Brazed

  • Min. - Optimum - Max.

Application Examples

  • Automotive Component Mould (Equivalent to SUS416)
  • Tooling Component (Equivalent to SKD11)
Tool : MLDH1400L20 (Guide : MLDH1400P)Tool : MLDH1900L20 (Guide : MLDH1900P)
Equipment : Vertical Machining Center (HSKA63)Equipment : Vertical Machining Center (HSKA63)
Coolant Supply : Internal Coolant (Emulsion Type, Pump Pressure : 4MPa)Coolant Supply : Internal Coolant (Emulsion Type, Pump Pressure : 4MPa)
Cutting Conditions : v =60m/min f=0.03mm/rev H=21mmCutting Conditions : v =60m/min f=0.10mm/rev H=27mm

c c Tool Life : 600 Units (11.4m/reg) Tool Life : 600 Units (18m/reg)