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Welding auxiliary joining part

A technology for joining parts, welding connections, applied in the manufacture of such welding auxiliary joining parts, component compositions, making corresponding connections between a first part and a second part, resistance welding connection fields, capable of solving obstacles to welding auxiliary joining parts Ingress, material blockage, problems affecting the joining process of welding auxiliary joining parts, etc.

Active Publication Date: 2020-03-17
BOLLHOFF VERBINDUNGSTECHNIK GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has been found that it is the opposite material displacement of the stamped rings adjacent to each other that results in material plugging that creates compressive stresses at the surface of the part
These compressive stresses impede the ingress of the weld assisted joining components, thus adversely affecting the joining process of the weld assisted joining components

Method used

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Examples

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Embodiment Construction

[0065] figure 1 A preferred embodiment of the welding aid joining part 1 according to the invention is shown in partial section. The welding aid joining part 1 is made of a known weldable material selected according to the welding method used. For the preferred use of resistance spot and projection welding, alloyed steels are suitable. However, other materials may also be used herein.

[0066] The welding auxiliary joint part 1 comprises a stamping shaft 10 extending parallel to the longitudinal axis L of the welding auxiliary joint part 1 . The stamping shaft 10 is designed to press or punch into the first part A substantially without rotation. The welding aid joining part 1 is self-punching, so that the welding aid joining part 1 can be pressed or punched into non-pre-punched parts as well as pre-punched parts. Therefore, preferably, the welding aid joining part 1 is configured as a solid punch rivet in order to ensure a time-saving and reliable joining into the part A. ...

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Abstract

The present invention relates to a welding auxiliary joining part (1) with which a welding connection, more particularly a resistance welding connection, can be produced between a first component A made of a difficult-to-weld material and a second component made of weldable material. The welding auxiliary joining part is characterised by a cylindrical punch shaft (10) that can be punchingly pressed into the first component A almost without rotation. The punch shaft (10) has an element head (30) on the head underside (34) of which only a continuous circumferential clamping ring (40) that projects axially in the direction of the punch ring (10) is arranged.

Description

technical field [0001] The invention relates to a welding aid joining part with which a welded connection can be established between a first part made of poorly weldable material and a second part made of weldable material, more particularly For resistance soldering connections. Furthermore, the invention relates to a method of producing such a welding-assisted joint and a method of producing a corresponding connection between a first part and a second part by means of a welding-assisted joint. Finally, the invention also relates to a component composition comprising at least one first component and a welding aid joining component as described above. Background technique [0002] For a considerable period of time, for example the automotive industry, there has been a great demand for the production of welded connections between two components, at least one of which is made of non-weldable or poorly weldable materials. These materials include in particular aluminum or plast...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K11/14B23K11/20B23K11/18B23K11/00B23K35/02
CPCB23K11/0066B23K11/14B23K11/185B23K11/20B23K35/0288B23K2101/006B23K11/002B23K11/16B23K20/02B21J15/00
Inventor 托斯滕·达特谢尔盖·哈特维格-毕盖罗
Owner BOLLHOFF VERBINDUNGSTECHNIK GMBH