Flatten cone with spherical tip

[fighterpilot]

I need to flatten a cone which has a spherical tip. The inside is hollow and the shell thickness is .0035". I've attached an image. I don't have much surfacing or sheet metal experience (in UGNX6 that is). Goal is to make a flat pattern I can cut out into a decal that will wrap around the shape. I'm thinking the spherial surface will have to deform some and will probably wrinkle a bit in the final decal. I have a 0.030" hole in the tip of the sphere for material relief.

Any help appreciated. Thanks...

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Fighter Pilot
Manufacturing Engineer

 

[cowski]

If you have a spherical surface, the decal will wrinkle a lot.