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Basic NX Face Milling Question

Experimenter
Experimenter

Hello Folks,

 

Im struggling with what Im sure is a very simple problem for you guys. 

I am trying to machine a rim face of a large cylinderical component, as shown below. 

 

Basically whatever I do I cant get the tool to machine the path in a single pass. 

The tool is 125mm dia, and the width of the rim is only 20mm or so, so easy enough to machine. I'm just pulling my hair out trying to get a single toolpath to travel around the rim using around 60% of the cutter dia.

 

Im still relativley new to NX and am learning lots, but any help on this issue would be most appreicated. 

 

Many thanks

 

2017-11-07 11_48_42-NX 8 - Manufacturing - [Flywheel Housing Test Assembly.prt (Modified) ].jpg

8 REPLIES

Re: Basic NX Face Milling Question

Genius
Genius

Facemilling almost always creates a min. of 2 passes. I have gotton 1 a few times, but it is rare

You can mess with the tool overhang parameter. to keep it tighter on the part.

 

But for a round profile like this I would always use planner mill, probably pick the outside profile and use negative stock to get the tool over the part. Arc on and off engage/disengage

{Paul Schneider}, {CNC Programmer}, {DRT-Rochester}


Production: {NX11.0.2,MP5, NX12.0.1, MP2}

Re: Basic NX Face Milling Question

Experimenter
Experimenter

Hi,

 

You can use a planar mill operation.

Specify the part boundary and select curve/edges

Select the inner edge of you cyclinder and make sure you select on instead of tanto from the tool position drop down box.

Then select the face as the floor and arc on and off as already suggested and this should work in one pass.

Re: Basic NX Face Milling Question

Genius
Genius

You can make the part boundry "on" when picking the curve, but then you are stuck with the tool right "on" the curve.

If you keep set to "Tanto" and then do negative stock (Say -.25) in cutting parameters the edge of the tool will go over the line by just .25 instead of driving only on the centerline.

Tanto has a little more flexibility in where you want the tool to be.

 

When you want a specific tool path nothing beats planner mill.

{Paul Schneider}, {CNC Programmer}, {DRT-Rochester}


Production: {NX11.0.2,MP5, NX12.0.1, MP2}

Re: Basic NX Face Milling Question

Siemens Legend Siemens Legend
Siemens Legend

You can try to use Floor Wall for this.

Face milling is less smart in this case.

Attached a Part where it runs only in one pass.

2017-11-07 16_19_37-NX110custom - Manufacturing - [model1.prt (Modified) ].png

The following parameters influence the behavior:

  • Cut Pattern : Follow Part
  • Cutting Parameters=>Connections=>Across Voids=>Motion Type : Follow
  • Cutting Parameters=>Containment=>Cut Regions=>Tool Overhang

I attached the Sample for NX11

Regards,

Gerrit Koelewijn

Re: Basic NX Face Milling Question

Siemens Legend Siemens Legend
Siemens Legend

I Verified that this behavior goes back to NX9.

In NX8.5 this behavior is not there yet and you end up with 2 passes.

Looking at the Picture of the Thread Starter, it looks like he is using NX8.5.

So be patient untill NX9 Smiley Happy

Regards,

Gerrit Koelewijn

Re: Basic NX Face Milling Question

Siemens Legend Siemens Legend
Siemens Legend

In NX8.5 it is also possible to get the same behavior.

The only difference is that the Cut Pattern must be "Follow Periphery".

Before NX8.5 you are stuck with Face Mill or the other options mentioned above.

Attached the NX8.5 part here.

 

Regards,

Gerrit Koelewijn

Re: Basic NX Face Milling Question

Valued Contributor
Valued Contributor

Hello BarriCA

Just change the Cut Pattern under Path Settings, set at Follow Periphery to Profile.

Make sure additional passes integer =0

EDS UG V3 -UG V15 UNIX; UGS UG V6 -UG V19 - NX-NX5 UNIX/MS; Siemens NX6-NX11 MS

Re: Basic NX Face Milling Question

Pioneer
Pioneer

Face Mill Mixed.JPGPath Shape.JPG

 

Other parameters

Tool Diameter = 120 mm

Maximum Distance = 120 mm

Tool Overhang = 50 mm

 

thats all. Just let you draw your path.Simple process.

 

Learn online





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