For Valve Body Cutting PCD Rotating Tools
Automotive Components
Valve Body Application Examples
PCD Reamer Cemented Carbide Reamer 120
Functions
Cutting Speed Feed Rate Allowance Coolant Machined Surface Roughness Circularity Economic Efciency Ratio
120 0.2 0.4 Non-water-soluble Cutting Oil 8 3 to 6 1
(m/min) (mm/rev) (mm/dia.)
0.2 0.4 Water soluble 3 1 to 3 0.5
Rz (μm) (μm)
AL
Work Shape
Proposals for High-speed Feeds and Chatter Reduction with Irregular-pitched Reamers D Using an irregular pitch design that focuses on rotational balance prevents resonance due to cutting resistance and cutting edge biting inside the hole, enabling high-precision machining. D The above results in suppressed chatter as well as improved circularity and cylindricity. D In comparison to 1-ute machining, even at the same speed, multi-ute machining enables higher feed rate and thus reduces machining time.
Application Examples
1 ute Balance Specication
4 Flutes
4 ute Irregular Pitch 5 ute Irregular Pitch
Shape
(mm/dia.) (min -1 ) (mm/min) (mm/rev) (mm/z)
0.5 to 0.7 1,000
0.5 to 0.7 1,000
Allowance Spindle Speed Feed Rate
960 0.24
400 0.1 0.1
0.05 960 0.24
Feed Rate per Revolution Feed Rate per Cutting Edge
0.06 Emulsion-type water-soluble oil
Emulsion-type water-soluble oil
Coolant Chatter Cylindricity
No 6
Yes 6
No 4
No 3
(μm)
Magnication: Actual Size
*Image only.
Cylindricity 3 μm
Coaxiality 1 μm
AL6
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