Ear Phone, Stavax HRC54

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Ear Phone Model

Purpose: IDI hard milling ball nose finishing quality test

Material: Stavax, HRC54

Dimension: 30x30x50mm

Tool: HDB2006 ball nose end mill

Coolant: oil mist



Processroughingsemi-finishingfinishing
ToolHDB2006HDB2006HDB2006
Diameter(mm)222
No. of flutes222
Spindle speed(rpm)140001600018000
Feed rate(mm/min.)2000
2000600
ae(mm)0.270.10.02
ap(mm)0.20.030.01
Processing time00:05:5000:02:2400:48:13



measure and Ra 1000x375.jpg


Comment:

A HDB2006 hard milling ball nose tool was tested in this experiment. We used a high stiffness 5-axis machine with HSK63A 24000rpm spindle for cutting test and measured Ra and geometry deviation on CMM. The final Ra was 0.11um. 29 points on the model were measured after machining. 28 out of them were within 5um tolerance. The final finished surface was shiny with no obvious machined tool path. The sound during machining was quiet and smooth.