Fiber angles are probably held to no more than +/-0.25° in the barrel section and +/-2° in the end domes.  Ply thickness will be a function of how tight the resin content is held on the prepreg or wet winding process.  The tolerance on cured ply thickness of prepreg materials (nominal thickness ~ 0.008 unch) is typically not less than +/-0.0001 inch (+/-0.0025 mm)

Hi SWComposites ;
Is there any refrence for your answer.Is there any website.

Cheers

alleak

Info is based on my experience.  I doubt you will find specific info on the web.  You might try the following book on filamant winding:  "Filament Winding Composite Structure Fabrication" http://composite.about.com/library/products/aafpr020828.htm

Why do you want to know about angle and thickness tolerances?

In an optimization procedure angle and thickness are design variables and i want to know how accurate should i be.

Cheers

alleak

In that case you should ask the manufacturing engineers who will be responsible for fabricating the structure what tolerances they can acheive with the specific winding process.