Insert Boring Bar

[jbolt]

I have a job that has a precision fit 4.5" inside a 2" tube. The only boring bar I had that was rigid enough is a 1-1/4" shank bar that uses #4 size CCMT inserts and I only have roughing inserts in that size. Additionally the boring bar fills most of the ID of the tube and it would load up with chips quickly slowing the process.

I looked for a 1" shank boring bar that would take #3 size CCGT inserts but could not find one so I rolled my own made from some 1" CRS I had in the bin.

I modeled it is Solidworks and machined it on the CNC mill.

 

[DrAsus]

That's awesome. Great job!

DrAsus

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[willthedancer]

Very nice.

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[randyjaco]

Great work. That geometry wasn't easy. I sure like the look of it.