PCD Rotating Tools
■ Features Multiple parts can be machined in a single pass by using an integrated stepped tool. Adoption of diamond offers significantly improved tool life (over 10 times longer than that of carbide tools). Surfaces can be machined without burn at a cutting speed of 300 m/min or higher. Stable performance can be achieved by using emulsion type water-soluble coolant. (Semi-dry cutting is also possible depending on your environment.) ● ● ● ● ■ Applications Non-Ferrous Metal (Aluminum Alloy, Copper Alloy, etc.) ●
AL
□ PCD Reamer Application Example (Automobile hydraulic regulator valve reaming)
Cemented Carbide Reamer
Functions
PCD Reamer
180
120 0.2 0.4
120 0.2 0.4
Cutting Speed (m/min)
Feed Rate (mm/rev)
Stock Removal (mm/diameter)
(80)
56
Oil-based
Water soluble
Coolant
8 10 1
3 5 0.5
Machined Surface Roughness (μmRz)
Circularity (μm)
Work Shape
Economic Efficiency Ratio
■ Data 1 : Improved Productivity by Breaking Chips
Precision diamond tooling technology enables high quality coaxial manufacturing with excellent tool runout precision. High-precision and high-efficiency machining can be achieved. ■ Data 2 : Good Balance between High-Efficiency Cutting and High Machining Accuracy
Negative Land Specification Cutting Edge
Seat Fitting Hole
Valve Guide Hole
Chip breaking function is enhanced to prevent a reduction in productivity due to problems caused by chips. Solutions are proposed according to the type of chip problem.
Without Chipbreaker
Work Material Drawing
Machining Diagram
1 Flute (Steel) 52 Results Machining Time ( s ) Circularity ( mm ) Coaxiality ( mm ) ● Difference in Performance by Shank Material ● Cutting Conditions 0.01 0.01 4 Flutes (Steel) 26 0.05 0.07 4 Flutes (Cemented Carbide) 13 0.03 0.05
Forms long chips that don't curl. · Wrapping around tool · Remnants on workpiece
With Chipbreaker
Work Description
Finishing of cylinder heads, guide and seat fitting holes
Work Material
Aluminum alloy castings AC4B
Machine
Horizontal machining centre ø11 to ø36 to L150 3,500 395
Tool Size (mm) Spindle Speed ( min -1 )
Cutting Speed (m/min)
Chips are forcibly curled and cut into fine pieces. · No wrapping around tool · No chip remnants
0.3 0.5
Feed Rate (mm/rev) Stock Removal ( mm/ diameter)
Coolant
Emulsion-type water-soluble oil
AL10
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