B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
B21D 28/28 (2006.01)
Patent
CA 2351234
A method and a device for producing leadthroughs on hollow profiles acted upon by a high fluidic pressure in an internal high-pressure forming tool. Dome-like secondary shaped elements are formed outwards in a radial direction from this hollow profile by the fluid pressurizing. The secondary shaped elements are then reverse drawn into the interior of the hollow profile by a punch while held at the prevailing internal high pressure, whereupon, to open the leadthrough, a punched slug is cut out of the base of the reverse-drawn secondary shaped element by the punch. To ensure the process reliability when producing the leadthrough even in the case of a hollow-profile material having low formability and to retain the strength of the hollow profile in the transition region to the leadthrough, in each case a secondary shaped element is formed out of the hollow profile at two opposite locations. After the forming, the secondary shaped elements are each reverse drawn into the hollow profile interior by a punch in such a way that the bases come to bear against one another inside the hollow profile in the final state of the reverse drawing. The punched slug is severed from the respective base by one punch plunging into the other punch.
Daimlerchrysler Ag
Kirby Eades Gale Baker
LandOfFree
Method and device for producing leadthroughs on hollow profiles does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and device for producing leadthroughs on hollow profiles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for producing leadthroughs on hollow profiles will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1419465