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Method of manufacturing a calibrated component, in particular for an exhaust system of a motor vehicle, and component for an exhaust system

A technology for vehicle emission and sizing, applied in exhaust devices, engine components, mechanical equipment, etc., can solve problems such as high scrap rate

Inactive Publication Date: 2008-10-01
ARVINMERITOR EMISSIONS TECH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This weld has been found to cause problems during sizing and a relatively high scrap rate

Method used

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  • Method of manufacturing a calibrated component, in particular for an exhaust system of a motor vehicle, and component for an exhaust system
  • Method of manufacturing a calibrated component, in particular for an exhaust system of a motor vehicle, and component for an exhaust system
  • Method of manufacturing a calibrated component, in particular for an exhaust system of a motor vehicle, and component for an exhaust system

Examples

Experimental program
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Embodiment Construction

[0025] figure 1 The tube 10 is shown made of metal. The tube is manufactured by bending and welding sheet metal strips. Two of the longitudinal edges of the sheet metal strip are connected to each other by a weld seam 12 . The tube 10 can be formed to the desired length by means of a schematically shown cutting tool 14 . A "cutting tool" here is of course also to be understood as a laser cutter. This step can be omitted when the sheet metal strip already has the required length before bending.

[0026] figure 2 A plurality of sensors 16 are schematically shown which scan the tube 10 for the position of the weld seam 12 . Sensor 16 can scan tube 10 inductively, optically, mechanically, or in some other suitable manner. Alternatively, a single sensor can be used, with the tube being rotated until the sensor detects the weld.

[0027] image 3 The schematically shown position of the weld seam 12 is oriented as desired in the circumferential direction. For this purpose, ...

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Abstract

A method for manufacturing a calibrated component, in particular for an exhaust-gas system of a motor vehicle, comprises the following steps: first of all, a tube (10) is provided which has a welded seam (12) along its longitudinal axis. It is then sensed at which location of the circumference of the tube (10) the welded seam (12) is situated. Subsequently, the tube (10) is oriented in the circumferential direction in such a way that the welded seam (12) is situated at a defined location. Finally, the tube (10) is calibrated, wherein the welded seam (12) is covered by a wedge grip (24).; A component for an exhaust-gas system of a motor vehicle is provided, in particular a housing (10) for a substrate, having a cover which has a welded seam (12) along its longitudinal axis and has a plurality of pairs of grip locations for wedge grips (24) on its outer face, wherein the welded seam (12) lies within the two grip locations of a wedge grip (24).

Description

technical field [0001] The invention relates to a method of manufacturing sizing components, especially for automotive exhaust systems. The invention also relates to a component for an exhaust system of a motor vehicle, in particular to a housing for a matrix. Background technique [0002] "Sizing" is understood as a method in which a generally elongated and generally tubular part of plastic deformable material is stressed in radial direction and thereby plastically deformed so as to obtain a specific Internal diameter. This method is used, for example, to accommodate ceramic substrates such as diesel particulate filters or catalysts for exhaust systems in housings. The housing is configured as a tube with an inner diameter slightly greater than the outer diameter of the matrix, plus the wall thickness of the support pad that typically surrounds the matrix. inserting the matrix together with the support pads into the housing, and correcting or reducing the housing, thereb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C37/30F01N13/08
CPCF01N3/2853B21C37/30F01N2350/04F01N2450/02Y02A50/20B21D3/00F01N5/00F01N13/08
Inventor 彼得·克罗纳埃里克·福斯特
Owner ARVINMERITOR EMISSIONS TECH GMBH
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