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TPDB

  • High precision grinding and superior clamping precision with Auto-centering system
TPDB
  • High precision clamping system - High precision grinding and superior clamping precision with auto-centering system.
  • Screw on clamping system - Easy clamping system of TPDB insert.
  • Sharp cutting edge - Improved chip evacuation, low cutting load, longer tool life with ultra-fine substrate and exclusive
    coating layer.
  • Holder with excellent durability - Holder with high rigidity and superb wear resistance due to special surface treatment.
Code system of holder
Code system of holder
Top Solid Piercing Drill
Top Solid Piercing Drill
Insert type
B : Blade type
Drill dia.
200 : Ø20.0
Shank dia.
25 : Ø25
Aspect ratio
3D, 5D, 8D
Code system of Insert
Code system of Insert
Top Solid Piercing Drill
Top Solid Piercing Drill
Drill dia.
200 : Ø20.0
Insert type
B : Blade type
Features
Features
Tool Cost

Comparison of 1 insert tool life

  • Exclusive coating and substrate
  • Usable till the end of wear (no need regrinding)
Tool life UP

Comparison of tool cost when machining 1000PCS of workpiece

[Alloy steel (SCM440)]
  • 40% longer tool life
  • No need regrind
  • Less insert change
  • 30% less tool cost
30% less tool cost
Application example

Part of automobile

  • WorkpieceGCD 500
  • Cutting condition vc(m/min)=98
    fn(mm/rev)=0.31
    ap(mm)=40
    Inner coolant system
  • ToolsInsert TPD195B(PC5300)
    HolderTPDB195-25-3
  • Machine MCT (vertical)
  • 2 times longer tool life

Part of heavy equipment

  • WorkpieceHot Forged Stee
  • Cutting condition vc(m/min)=85
    fn(mm/rev)=0.2
    ap(mm)=20
    Inner coolant system
  • ToolsInsert TPD210B(PC5300)
    Holder TPDB210-25-3
  • Machine MCT (vertical)
  • 2 times longer tool life
Recommended Cutting Condition
Recommended Cutting Condition
Workpiece Grade vc fn(aspect ratio=3D~5D)
Feed(mm/rev) per drill Dia.(mm)
ISO Workpiece HB m/min 10~15.9 16~24.9 25~29.9
P Carbon
steel
Low carbon steel 80-120

PC5300

110(80~140) 0.15~0.30 0.20~0.35 0.25~0.40
High carbon steel 180~280 PC5300 100(70~130) 0.15~0.30 0.20~0.35 0.25~0.40
Alloy steel Low alloy steel 140~260 PC5300 110(80~140) 0.18~0.35 0.23~0.38 0.28~0.43
Low pre-hardened
steel
200~400 PC5300 75(50~100) 0.18~0.35 0.23~0.38 0.28~0.43
High alloy steel 50~260 PC5300 70(50~90) 0.18~0.30 0.20~0.35 0.25~0.40
High pre-hardened
steel
220~450 PC5300 60(40~80) 0.18~0.30 0.20~0.35 0.25~0.40
M Stainless
Steel
Austenite
series
135-275 PC5300 50(30~70) 0.13~0.25 0.15~0.30 0.17~0.33
Ferrite series
Martensite series
135-275 PC5300 55(40~70) 0.13~0.25 0.15~0.30 0.17~0.33
K Cast Iron Gray cast iron 150~230 PC5300 110(80~140) 0.18~0.35 0.20~0.40 0.25~0.45
Ductile cast iron 150~230 PC5300 100(70~130) 0.18~0.35 0.20~0.40 0.25~0.45
S Heat
Resisting
Steel
Ni pre-hardened
steel
130~400 PC5300 40(20~60) 0.10~0.20 0.12~0.22 0.25~0.45
Ti pre-hardened
steel
130~400 PC5300 40(20~60) 0.10~0.20 0.12~0.22 0.25~0.45
High hardened
steel
400~ PC5300 35(20~50) 0.10~0.20 0.12~0.22 0.25~0.45
  • In case of 8D, reduce the cutting conditions to 40~50% or machine the beginning of hole first.(1.5D)
  • In case of interrupted machining, reduce the feed to 30~50% machining around the interrupted part.
Technical information
Cutting oil quantity
Cutting oil quantity
Pressure of cutting oil
Pressure of cutting oil
Cutting power
Cutting power
Feed
Feed
How to clamp a TPDB insert
Clamping an insert on a holder
Fig.1
Put an insert in the holder.
As the Fig.1, clamp the insert while pushing
it to the V shaped groove of the holder.
Screw the insert.
Changing an insert on the machine
Fig.2,3
Separate the insert from the holder.
As the Fig.2, clean the insert seat
Place the insert to the mounting seat.
As the Fig.3, clamp the insert while pushing it to the V shaped groove
of the holder.