Clinching method and tool therefor

A tool and riveting technology, which is applied in the field of tools to realize the method, can solve problems such as the influence of the rheological process, the skew of the guide rod, and uncontrollable problems, and achieve the effect of easy control, high density, and high hardness
CN1646242AInactive Publication Date: 2005-07-27TOX PRESSOTECHNIK GMBH & CO KG
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
TOX PRESSOTECHNIK GMBH & CO KG
Publication Date
2005-07-27
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to a method and tool for carrying out said method in order to produce a clinching connection. According to the invention, wall sections (8) of the working opening (4) of the matrix (5) are provided with a flexible design and after covering a certain distance, are stopped by a stop in order to achieve a strain hardening of the squeezed material.
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Description

technical field

[0001] The invention relates to a method for riveting a component having at least one sheet metal according to claim 1 , and a tool according to subclaim 5 , in particular a tool for implementing the method. Background technique

[0002] In a known method (GB 2069394 A) the wall segments rest on four struts constituting the mould, wherein these struts are in a radially elastic state with spaces between the struts for receiving the rheological material , showing its flaws because of the inability to control the shape of the latter. In one embodiment, such voids are also designed on the bottom surface of the mould, so that during the rheological process of the surface part, the radial flow is also influenced. According to another embodiment presented therein, the bottom surface, at least in its central region, is closed and made as a flexible plunger. It also has the disadvantage that during the radial dispersion, the compressed material penetrates into the s...

Claims

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