CBN tools machining case of automobile VVT gear

27 August 2020

 Study Case

 

Finish cutting for automobile VVT gear

Workpiece material

Hardened Powder Metallurgy

Workpiece hardness

>HRC45

Tools

Coated CBN inserts, DCGW11T304

Process mode

Interrupted finishing

Coolant

Oil cooling

Cutting speed

175 m/min

Feed rate

0.05 mm/rev

Cutting depth

0.1 mm

Tool life

260 pieces

 

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