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Hi..Looking for material recommendations on a cylidrical component that can be extruded internally and then machined on the outer surface? Thank you.

Hi. Thank you for your feedback. Just to clarify, this is for the inline serial production coolers which are close to 500 a day. Cannot have them tested to fail. Few samples/day are being tested to fail as you said. An example of the internal leak is for the trans cooler which cannot see a drip...

Hi, Is there a better procedure to detect an internal leak from an oil cooler? Internals are brazed. There is an inline air leak detection equipment set at 5psi to detect the leaks. Still, some are getting missed, as there found to be small gaps enough to let the cooler pass the air leak check...

hello alex thank you for the suggestion. I tried turning on the PSTRES,ON and done the modal analysis. But i could find any change in the natural frequency when i change the force applied on the plate with bolt. I could understand what can i do further. Can you suggest me the best way to...

No Alex i did not activated the prestress effects. Any way i will try activating it. thank you for your reply

sorry guys i forgot to give the link in my previous post here is the link to the pics of my setup http://picasaweb.google.com/mechmighty/SetupPics

Hello I am doing modal analysis of a plate with bolted joint. I have done experiment on shaker vibrated the plate axially with random input for finding the frequency of the plate with a bolted joint. My topic is 'Self loosening of bolted joint under vibrations'. So i applied different torques...