PCD Rotating Tools
■ Machining Process
Process 1
Finishing of Valve Seat Fitting Holes
Process 2
Finishing of Hydraulic Lash Adjuster (HLA) Holes
Process 3
Finishing of Intake and Exhaust Valve Guide Holes
AL
Process 1
Finishing of Valve Seat Fitting Holes
Resolves coaxiality and cylindricity issues with the high shank rigidity and high quality cutting edge.
■ Specifications for Finishing of Valve Seat Fitting Holes
Machine : Horizontal Machining Centre
6,000 0.48 2,880 0.6 Emulsion-type water-soluble oil
Spindle Speed ( min -1 ) Feed Rate ( mm/rev ) Feed Rate ( mm/min ) Stock Removal ( mm/ diameter) Coolant
Cutting Conditions
Process 2
Finishing of Hydraulic Lash Adjuster (HLA) Holes
Achieves high cylindricity using a design ideal for machining of thin-wall parts and stop holes.
■ Specifications for Finishing of Hydraulic Lash Adjuster (HLA) Holes
Machine : Horizontal Machining Centre
5,000 0.34 1,540 0.5 Emulsion-type water-soluble oil
Spindle Speed ( min -1 ) Feed Rate ( mm/rev ) Feed Rate ( mm/min ) Stock Removal (mm/diameter) Coolant
Cutting Conditions
Process 3
Finishing of Intake and Exhaust Valve Guide Holes
Unique guide shape and effective oil hole design enable high accuracy and high efficiency machining of deep holes with L/D of 10 or more to be achieved.
■ Finishing of Intake and Exhaust Valve Guide Holes
Machine : Horizontal Machining Centre
Spindle Speed ( min -1 ) Feed Rate ( mm/rev ) Feed Rate ( mm/min ) Stock Removal (mm/diameter) Coolant
5,000 0.3 1,500 0.1 Emulsion-type water-soluble oil
Cutting Conditions
Machined Part
■ Results
Price Ratio 1 3
Tool Cemented Carbide A.L.M.T. PCD Tool
Tool Life (No. of Holes) 1,200 12,000
Cost Ratio 1 0.8
Coaxiality Q 10 μm
Inner Diameter Variance Q 3 μm/10,000 holes
AL11
Made with FlippingBook Ebook Creator