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Thanks goeasyon for your reply i miss understand what do you mean (pre stressed) but i can say that the flange after we fabricate it we do a pressure test using water on it and bolt the two outlet with a blind flange so the only load inside is the pressure of water which can reach 10000 psi...

How can i made FEA to the flange which is pressurized and bolted ok i tried to make the following Load constraint : Pressure Boundary constraint : Fixed at the bolt hole but i think its not right so can any one help me...

How can i made FEA to the flange which is pressurized and bolted ok i tried to make the following Load constraint : Pressure Boundary constraint : Fixed at the bolt hole but i think its not right so can any one help me...

Thanks all its seems that i can not do that , is I am right?

NX 8

yes and thanks for your effort http://files.engineering.com/getfile.aspx?folder=e6bfbb00-0bf7-44a4-908d-e9bea45985d4&file=Capture.PNG

sometimes i need to work in drafting first , I'm insert and image and go on this image after i finished i want to draw 3D model , but when i start modeling i'm not found it only solution is to swn it to autocad and import it in modeling is there a faster solution ?

gani009 thank you i find it But can i make it in cavity mill im trying to make it ?

How can i find (select transfer method between within regions as direct) ?

Thank you very much Can I Make a counter without retract , i mean i want to continuously move in z without make retract is it possible?

whats the mean of engage and retract? and how can i make a cavity mill through cone without retract ?, i want to do the operation continuous in z not to make a layer then retract to a point above