One of our customers was manufacturing electrical motion control components using a 4-spindle CNC Lathe in high volume. The parts were made of 1215 steel with an aluminum-bronze weld. This particular blind bore required a surface finish of 32 Ra microinch (.8 Ra).
When the customer contacted us, we recommended our Diatool 3252, standard monoblock reamer with Cermet blades and a unique geometry to achieve a very good surface finish without the need for a secondary operation. The reamer has (6) cutting blades and features coolant through the center of the tool.
RPM = 4,000
Feed rate = 0.02” per revolution
Cutting speed = 80 inches per minute
Finish achieved: 3-4 Ra microinch (0.08-0.1 Ra)
Tool life: 8,000 parts
The customer was very happy with the tool life and cycle time they achieved. They use two other reamer sizes also on high production jobs and have been a loyal customer since 2010.
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