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Method and system for monitoring and controlling character of heat affected zone in metal welding

A technology of characteristics and characteristic values, applied in general control systems, control/regulation systems, metal processing, etc.

Inactive Publication Date: 2007-05-09
THERMATOOL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The operator can only use in isolation only the knowledge of the conditions of the welding process factors to obtain a weld that meets the success criteria

Method used

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  • Method and system for monitoring and controlling character of heat affected zone in metal welding
  • Method and system for monitoring and controlling character of heat affected zone in metal welding
  • Method and system for monitoring and controlling character of heat affected zone in metal welding

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Embodiment Construction

[0022] The systems and methods of the present invention are used to monitor and / or control at least one quantifiable HAZ characteristic in the welding of metal parts, to provide a diagnostic tool to operators of welding equipment, and / or to enable control of at least one operating condition of welding equipment To obtain a weld in which at least one quantifiable HAZ characteristic satisfies a success criterion with respect to the performance of the fabricated component, the system and method are applicable to any welding process that joins metal pieces. To facilitate understanding of the present invention, features of the present invention for monitoring and controlling quantifiable HAZ characteristics in metal piece welding are described and exemplified below in conjunction with known techniques for producing tube or pipe from metal strip using forge welding equipment. It should be understood that the weld of a metal piece obtained by either welding process can be defined by a...

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Abstract

Method and system for monitoring and controlling at least one of the plurality of quantifiable heat affected zone (''HAZ'') characteristics in a weld of metal pieces provides a user with information concerning at least a first quantifiable HAZ characteristic for a weld, and also provides for control of an operating condition of a welding apparatus to obtain a weld having a quantifiable HAZ characteristic that satisfies success criteria relating to performance of the fabricated component.

Description

technical field [0001] This invention relates generally to welding of metal parts, and more particularly to monitoring and controlling the quantifiable characteristics of the heat-affected zone in the welding of metal parts. Background technique [0002] Welding is a well known process performed for joining two or more pieces of metal. In welding, metal pieces, which may have the same or different metallurgical properties, are heated to their melting points. A prescribed amount of pressure is then applied to the metal pieces to bring them into contact, which causes the materials of the metal pieces to flow together and mix. Subsequently, the metal part is cooled, which solidifies the areas where the material of the metal part flows together and thereby bonds the metal part. [0003] There are many well-known processes for welding metal parts, such as arc welding, spot welding, laser welding, and forge welding, among others. The characteristics of the weld formed by perfor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/02G05B19/02B23K13/00
CPCB23K31/00B23K31/12B21C37/08B23K13/025B23K13/08B23K2101/04B23K2101/10
Inventor P·斯科特M·诺尔伦
Owner THERMATOOL
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