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Join for metal objects

A metal tube, edge technology, applied in the field of joints between two-dimensional or three-dimensional metal objects, which can solve problems such as unavailability, lack of material on the cutting surface, etc.

Inactive Publication Date: 2007-05-30
OUTOKUMPU OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when a metal object is mechanically cut, the resulting cut surface of said metal object is not geometrically usable, but part of the cut surface lacks material

Method used

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  • Join for metal objects
  • Join for metal objects
  • Join for metal objects

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0022] In Fig. 1 and Fig. 2, in order to form a single-side control joint between two metal pipes with substantially equal diameters, a bevel 2 is processed at the edge of the metal pipe 1 with a cutting angle of 30 degrees, and The opposite part 3 of said bevel is formed on the other metal tube 4 with the same cutting angle of 30 degrees, so that according to FIG. 2 the metal tubes 1 and 4 form a uniform butt joint.

[0023] Figures 3 and 4 show how a one-sided controlled joint can be formed between two metal plates of substantially equal thickness. On the metal plate 11, a bevel 12 is machined with a cutting angle of 25 degrees. The chamfer 13 , with the chamfer 12 as the opposite surface, is formed in a corresponding manner on the metal sheet 14 in order to obtain a butt joint on the metal sheets 11 and 14 .

[0024] In Figures 5-9, it is shown how to form a double-sided controlled joint on the metal pipe 21, and form a bevel 22 at the edge of the metal pipe 21 with a cutt...

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PUM

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Abstract

The invention relates to a joint between metal objects for joining two-dimensional or three-dimensional metal objects together with a butt joint. According to the invention, at the edge of one metal object (1, 11, 21, 31, 41) there is beveled a self-directing fitting (2, 12, 22, 33, 43) where the cutting angle in relation to the metal object edge varies within the range 0-60 degrees, advantageously within the range 20-30 degrees, and at the edge of the other metal object (4, 14, 31, 41) there is created a countersuface (3, 13, 34, 44) for the fitting, so that the fitting (2, 12, 22, 33, 43) and the countersurface (3, 13, 34, 44) are placed at an essentially equal distance from each other essentially throughout the whole area of the joint.

Description

technical field [0001] The present invention relates to a joint between two-dimensional or three-dimensional metal objects which can be used when joining metal objects together. Background technique [0002] Two-dimensional metal objects, such as metal plates, can be joined to similar metal objects in a number of different ways, such as by using butt joints, butt joints with covers, or folded joints. In addition, according to the mutual positions of the metal objects to be connected together, the connection methods also have many different ways to realize the connection. A connection method combining the above methods, such as key connection, may also be used. Even three-dimensional metal objects, such as metal pipes or three-dimensionally formed objects, can be connected to similar metal objects in many different ways, such as with butt joints, sockets, expanded butt joints, socket connections or sleeve connections. Similar to the case of metal plates, metal pipe joining ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K33/00
CPCB23K33/004
Inventor 泰罗·托尔维宁
Owner OUTOKUMPU OY