Semi-finished product made out of a ductile material with...

Details Semi-finished product made out of a ductile material with... Semi-finished product made out of a ductile material with...

2008-01-08

2008-01-08

Thomas, Alexander S. (Department: 1772)

Stock material or miscellaneous articles

All metal or with adjacent metals

Having marginal feature for indexing or weakened portion for...

C428S043000

Reexamination Certificate

active

10325612

ABSTRACT:
A band-shaped semi-finished product is made out of a ductile material and is configured to be separated into at least two sections. At least one pair of wedge-shaped, non-cuttingly formed longitudinal notches are formed, between the tips of which there remains a thin web of material, which can be torn easily with little force. The semi-finished product is distinguished by burr-free separated edges, defined geometry of the separating surfaces, and extremely reduced breaking-surface portions. It shows improved resistance during static and dynamic stress, in particular for alternating bending loads, in comparison to conventional, for example via the rolling-cutting technique, separated semi-finished products.

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Handbuch der Umformtechnik/Schuler GmbH Springer-Verlag Berlin Heidelberg New York, 1996, p. 286, Illustration 4.6.2 including English language translation thereof (3 sheets).

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