Interesting Aerofoil Platforms
Interesting Aerofoil Platforms
(OP)
Morning Brainics,
I have an issue and I'm hoping one of you smart people can help me out.
I have a turbine blade to produce, this turbine has awful platforms, (coloured red).
I can cut the aerofoil, But the platforms are causing me a headache.
Please can somebody point me in the right direction.
I'm using version 7.5
Cheers
Alan
I have an issue and I'm hoping one of you smart people can help me out.
I have a turbine blade to produce, this turbine has awful platforms, (coloured red).
I can cut the aerofoil, But the platforms are causing me a headache.
Please can somebody point me in the right direction.
I'm using version 7.5
Cheers
Alan





RE: Interesting Aerofoil Platforms
You have two good curves when looking in the z-axis but the shape in the x-axis not what you want?
Best regards,
Michaël.
NX7.5.4.4 + TC Unified 8.3
RE: Interesting Aerofoil Platforms
Thanks for your response,
I think my first post is mis-leading,
This is the model I recieved from the customer, (some features have been removed).
I want to manufacture the platforms, (RED).
I know the platforms are messy, but thats what the customer requests.
Cheers
Alan
RE: Interesting Aerofoil Platforms
RE: Interesting Aerofoil Platforms
I posted a few days ago.
I really am stuffed when it comes to manufacturing these platforms.
Ideally i would like to use the aerofoil as the drive surface & cut the platform spiral style.
I can cut the aerofoil in this fashion, but when the tool reaches the platform, the stepover is to large, due to the drive surface/check surface intersection curves generated.
Which manufacturing cycle do you think would work
What drive condition should I use
Etc....
Thanks in advance
Alan
RE: Interesting Aerofoil Platforms
Somebody must know how to do this.
I really am stuffed on this issue, any input would be great.
Yours going bold swiftly.
Alan
RE: Interesting Aerofoil Platforms
RE: Interesting Aerofoil Platforms
If you could post a couple views of the blade, I can look at it tonight at home. I'm at work (no internet here at work, only Blackberry). I've done several types of platforms myself on single blades.
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Bill
RE: Interesting Aerofoil Platforms
Thanks for your post,
Theres a parasolid file attached to this thread.
would that be ok?
Alan
RE: Interesting Aerofoil Platforms
Sorry but I can only view images but I think that might be enough.
RE: Interesting Aerofoil Platforms
I have attached a couple of screen grabs,
my status:-
I have been machining single blades for 4 years.
I machine blades on a 5 axis Starrag machine.
The software I use can only handle revolved platform surfaces.
The platform surfaces on this blade are chaotic surfaces!
I know how I would like to cut the platforms,
I have average knowledge of NX 7.5, but I can't get nx to cut these 2 platforms.
Ideally I would like to drive around the aerofoil in a spiral cutting the platform outside to inside.
Please reply
Alan
RE: Interesting Aerofoil Platforms
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Bill
RE: Interesting Aerofoil Platforms
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Bill
RE: Interesting Aerofoil Platforms
Thanks for sticking with me.
I'm doing ok as you will see from the attached jpeg.
But:-
I'm having issues with the 'tool axis' selection drop down box.
I have no idea which to select, I've tried various options, but all options seem to shoot the tool into space.
Any input would be great.
Alan
RE: Interesting Aerofoil Platforms
I set the tool axis to revolve around a line, then tip the tool about 30 degs.
Thanks for your help Bill,(wmalan).
You deserve the stars.
Alan
RE: Interesting Aerofoil Platforms
Glad to help!
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Bill