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Semi-tubular self-piercing rivet for thin sheet metal joints, method for producing said semi-tubular self-piercing rivet, and method for producing a joint

A semi-hollow, rivet technology, applied in the direction of thin plate connection, rivet, connection member, etc., can solve the problems affecting the riveting of the upper aluminum plate, and achieve the effect of reliable attachment and avoidance of damage

Active Publication Date: 2018-07-17
BOLLHOFF VERBINDUNGSTECHNIK GMBH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the length of the shaft cavity is large, it will affect the riveting of the upper aluminum plate

Method used

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  • Semi-tubular self-piercing rivet for thin sheet metal joints, method for producing said semi-tubular self-piercing rivet, and method for producing a joint
  • Semi-tubular self-piercing rivet for thin sheet metal joints, method for producing said semi-tubular self-piercing rivet, and method for producing a joint
  • Semi-tubular self-piercing rivet for thin sheet metal joints, method for producing said semi-tubular self-piercing rivet, and method for producing a joint

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Embodiment Construction

[0041] The semi-hollow self-piercing rivet 1 according to the invention is produced from a wire blank by cold forming. It has the geometrical characteristics detailed below. Such as figure 1 Referring to the inventive preferred embodiment of the semi-hollow self-piercing rivet 1 shown in FIG. 3 , the latter comprises a rivet head 10 with a common central axis X and a rivet shaft 30 with a central shaft hole 32 . Rivet shaft 30 has an outer shaft face 34 and an inner shaft face 36 defining a central shaft bore 32 . The shaft hole 32 has a depth T B , and the semi-hollow self-piercing rivet 1 has a total length L N . The semi-hollow self-piercing rivet according to the invention is preferably used on a plurality of sheets B 1 , B 2 A self-piercing rivet connection is produced in a stack of ... (see Figure 4 ), the sheets B1, B2 have a thickness t 1 , t 2 . For this purpose, the semi-hollow self-piercing rivet 1 has L N A total length of ≦4 mm, wherein the outer axial...

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Abstract

The invention relates to a semi-tubular self-piercing rivet (1) having a rivet head (10) and a rivet shaft (30), the shaft bore (32) of which satisfies the following relationship in relation to the length of the semi-tubular self-piercing rivet: (formula I), the total length of the self-piercing rivet LN being <= 4 mm. The invention further relates to a corresponding self-piercing rivet joint, toa method for producing the self-piercing rivet, and a method for producing the self-piercing rivet joint.

Description

technical field [0001] The invention relates to a semi-hollow self-piercing rivet, in particular for the production of sheet metal connections. The invention also relates to a connection of thin components with said semi-hollow self-piercing rivet, a method for said connection and the manufacture of said semi-hollow self-piercing rivet. Background technique [0002] Semi-hollow self-piercing rivets known in the prior art, such as described in DE102006028537B3 and DE102005052360A1, known semi-hollow self-piercing rivets include a rivet shaft with a central shaft hole, which extends in the direction of the rivet head. Most of the punch rivet (more than 80% of the total length of the semi-hollow self-piercing rivet). The geometry of this self-piercing rivet is not suitable for making thin metal sheet connections due to its length and the expansion characteristics of typical semi-hollow self-piercing rivets. [0003] DE19648231A1 describes a method for influencing the expansio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B19/08B21J15/02B21K1/60
CPCB21J15/025F16B19/086F16B5/04F16B19/08
Inventor 马蒂亚斯·黑格尔丹尼斯·亨克丹尼尔·荣克维茨安德烈亚斯·马克思克斯弗朗茨-费迪南·门恩
Owner BOLLHOFF VERBINDUNGSTECHNIK GMBH
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