SectionAL 25-26

For Cylinder Head Cutting PCD Rotating Tools

Automotive Components

„ Features A single reamer can finish multi-stage holes, reducing work processes. Delivering an excellent surface finish unobtainable with carbide tools. Precise and stable dimensional and shape accuracy unique to diamond tools can be maintained for a long time. Cutting speed and feed can be tuned to reduce machining time. D D D D

AL

High-precision / high-efficiency machining is realised through high-quality cutting edge accuracy created by diamond precision machining technology. „ Data 2: Good Balance between High-efficiency Cutting and High Machining Accuracy

„ Data 1: Improved Productivity due to Breaking Chips

Negative Land Specification Cutting Edge

Shim Fitting Hole

The chipbreaker function has been enhanced to prevent a reduction in productivity due to problems caused by chips. Solutions are proposed according to the type of chip problem.

Valve Guide Hole

Without Chipbreaker

Work Material Drawing

Machining Diagram

1 Flute 52 Results Machining Time ( s ) Circularity ( mm ) Coaxiality ( mm ) D Difference in Performance by Shank Material 0.01 0.01 4 Flute (Steel) 26 0.05 0.07 4 Flute (Cemented Carbide) 13 0.03 0.05

Long chips formed without curl. · Wrapping around tool · Remains on workpiece

With Chipbreaker

D Cutting Conditions

Machine Tool Size (mm) Work Material Coolant

Horizontal Machining Centre ø 11 to ø 36 to L150 Aluminum Alloy Castings AC4B Emulsion-type water-soluble oil 3,500 395

Chips are forcibly curled and break into small pieces.

Spindle Speed (min -1 ) Cutting Speed (m/min) Feed Rate (mm/rev) Allowance ( mm/ diameter)

0.3 0.5

AL2

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