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Internal radius on a slotted pipe, 3/4-Axis


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Does anyone have an idea on if it is possible to create a radius on the inside of a slotted pipe using a (3/4 axis) mill? The customer wants there to be a radius on the inside and outside of the slots. Since it is a pipe, I cannot use a 3-Axis contour path with a Back Corner Rounding End Mill because it is a pipe and the tool would gouge the part. I was thinking there could possibly be a way with a 3D surfacing toolpath and a lollipop mill. I played around with it briefly (using flowline) and couldn't seem to get the desired results. Unfortunately we do not have a 5-Axis yet and our MCAM license is only for 4-Axis. Thanks!

Here is a similar part I found online. The radius needs to be on the internal and external edges of the long slots.

slotted pipe.jpg

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Harvey 300 degree lolipop mill

You have to check the allow undercut box and possibly uncheck gouge check.

 

And play with direction to lead it on and off

You can lock debur path to 3 or 4 axis also

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Look at a back radius tool and machine it that way.

Here is a link to the tool will have to copy it into your browser we lost the ability to do this, but got badges. Oh Joy.

https://www.harveytool.com/products/tool-details-985108-c3

  • Haha 1
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