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Undercut roughing with IPW and stepovers?

Legend
Legend

s.JPG

I need to rough this part from the top side with a Woodruff cutter, and as the picture demonstrates, stock width varies a lot. I've tried all kinds of paths, but can't generate stepovers with IPW awereness. If I just offset the path, there's a lot of cutting air. 

 

I've used heavy feed optimizing as a compromise, but there must (?) be a better way.. I'm using CAM express with 3-ax only. 

 

Thanks/Harri

12 REPLIES

Re: Undercut roughing with IPW and stepovers?

Siemens Legend Siemens Legend
Siemens Legend

try boss milling...

ScreenHunter_01 May. 25 11.35.gif

Re: Undercut roughing with IPW and stepovers?

Legend
Legend
Thanks Michael, I did but couldn’t get it to work. Firstly the top of the cutter plunged happily through the square section and secondly, couldn’t get the IPW awareness on the radial stepovers. Did I miss something?

Re: Undercut roughing with IPW and stepovers?

Legend
Legend
And isn’t your boss milling approaching from the wrong side?

Re: Undercut roughing with IPW and stepovers?

Gears Esteemed Contributor Gears Esteemed Contributor
Gears Esteemed Contributor

What NX release are you using?

There might be more options if we know what you really have available despite of 2.5D milling.

Stefan Pendl, Systemmanager CAx, HAIDLMAIR GmbH
Production: NX10.0.3, VERICUT 8.1, FBM, MRL 3.1.7 | TcUA 10.1 MP7 Patch 0 (10.1.7.0) | TcVis 11.4
Development: C (ITK), .NET, Tcl/Tk Testing: NX12.0 | AWC 3.4 Preparing: NX12.0

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Re: Undercut roughing with IPW and stepovers?

Legend
Legend
I’m on the newest release of NX12. All the 3ax stuff, but no full 5ax.

Re: Undercut roughing with IPW and stepovers?

Legend
Legend

2D option....

 

Planar Mill Operation

Set part boundary to your cicle boss

Set Blank boundary to outside of box

Use cut levels > user defined > Distance from top to make sure keyseat doesnt cut flange.

Now you can specify follow part cut pattern and it will attack the corners only instead of multiple circle offset paths that cut air 50% of the time.

 

2018-05-25_0906


Dennis Rathi
Creations Unlimited

Re: Undercut roughing with IPW and stepovers?

Legend
Legend
@Dstryr, that looks superb! I’ll give it a try as soon as I’m at the computer.

Re: Undercut roughing with IPW and stepovers?

Legend
Legend

New cut plane transfer option makes it even better.... with stepover control feed rate can save lots of time.

 

https://community.plm.automation.siemens.com/t5/Discussion-Forum-NX-Manufacturing/Cut-Plane-Transfer...

2018-05-25_0911


Dennis Rathi
Creations Unlimited

Re: Undercut roughing with IPW and stepovers?

Siemens Legend Siemens Legend
Siemens Legend

I reversed the boss vector, ok after that...

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