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Cutting around a turn inside a tube

help cutting around the turn inside this tube with a 5 axis machine

8 REPLIES

Re: Cutting around a turn inside a tube

Not sure if this is what you mean, and what version of NX your using

Use Tube milling.

1st turn your unclosed sheet body into a solid.

Create a curve thru the centre.

Use Tube milling operation.

 

tube-mill.png

 

See NX 11 part

 

Patrick Delisse
KMWE - DutchAero
NX11.0, CAMPOST V22, Vericut 8.0

Re: Cutting around a turn inside a tube

Hi Jowens909

As paehv shows Tube milling in NX11.0.1 would be the easiest and best option. If you don't have tube milling because of previous versions of NX then I have attached an old way of achieveing this. It's not refined as far as step over etc, it's a sample that you can improve on to get the stepover, cut percentages from each side etc. to the way you need.

Hope it also helps.

Regards

Paul

Re: Cutting around a turn inside a tube

sorry i forgot to say im using nx 10.0.3.5. I am unable to open either of the files becasue they are from a newer verison.

Re: Cutting around a turn inside a tube

Sorry, can't really help you out. I only got NX 11

 

Create an offset surface on the inner face (small offset -1mm/.04" will be enough)

create a variable contour operation.

Select part surface only the inner face

 

Select Drive > Surface area > Select the offset surface > Cut pattern Helical

Select Projection vector > Normal to drive > Backoff 50%

Select Tool Axis > Toward point and select/create an appropriate point

 

Use a signature in your profile so it's clear witch version you're using

Patrick Delisse
KMWE - DutchAero
NX11.0, CAMPOST V22, Vericut 8.0

Re: Cutting around a turn inside a tube

thank you. anyone with nx 10 able to post example of this?

Re: Cutting around a turn inside a tube

Hi Jowens909

Here is an NX10.3.5 version. Hope it helps. If you have any questions please ask.

regards

paul

Re: Cutting around a turn inside a tube

That was really use full thanks for take the time. Could you use a T-shape cutter or is it better to use the spherical shape cutter for this type of operation?

Re: Cutting around a turn inside a tube

Hi jowens909

I would expect some projection issues with sharp corner t-cutters I made one that has top and bottom radius sizes that match the flute length.please check the attached sample. The other issue I could see is based on the tool axis you could possibly be plunging the t-cutter into material with the non cutting portion of the t-cutter so careful roughing would be more critical.

Hope this helps.

regards

Paul

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