In the present invention, at least one tubular blank and at least one article such as a metal stamping, to be attached to a hydroformed part, are loaded into a die. The tube is hydroformed using typical methods. The article is positioned in the die such that, when. the tube is hydroformed, the final...http://www.google.com/patents/US6505389?utm_source=gb-gplus-sharePatent US6505389 - Apparatus and method for forming a tube having an article attached thereto
