Method and device for creating a hole on the outer...

Details Method and device for creating a hole on the outer... Method and device for creating a hole on the outer...

2006-04-04

2006-04-04

Jones, David B. (Department: 3725)

Metal deforming

By application of fluent medium, or energy field

With cutting

C072S056000, C083S054000, C083S053000

Reexamination Certificate

active

07021098

ABSTRACT:
In a method and a device for creating a hole on the outer circumference of a hollow profile which is circumferentially closed and under an internal high pressure, before hole-punching, a punch which is integrated in the internal high pressure forming mold such that it can be guided butts against the location of the hole to be created. When it leaves its position of abutment, the punch creates a punched slug there alongside the hole. To make it possible for holes to be punched at virtually any desired location in hollow profiles in the internal high-pressure forming mold in a simple way, it is proposed that the hole-punching takes place by the punch being moved in the guiding bore of the forming mold by the internal high pressure acting together with a driving element, the body axis of which lies approximately at 90° in relation to the hole punch axis and which for its part is driven in a rotary manner and/or translatory manner in the axial direction. The punch is acted on on the side facing away from the impression by driving contours of the driving element.

REFERENCES:
patent: 5398533 (1995-03-01), Shimanovski et al.
patent: 5816089 (1998-10-01), Marando
patent: 6341514 (2002-01-01), Engel et al.
patent: 6439018 (2002-08-01), Hellgren et al.
patent: 19752171 (1998-06-01), None

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