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Dedicated cushion plate for measuring friction stir welding temperature field

A technology of friction stir welding and temperature field, which is applied in thermometers, measuring devices, measuring heat, etc., can solve the problems of arranging thermocouples, etc., and achieve the effects of convenient production, guaranteed welding quality, and guaranteed accuracy

Inactive Publication Date: 2013-07-24
JIANGSU UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, friction stir welding has very strict requirements on the clamping of welding parts (the back of the test plate is often close to the welding platform), and it is impossible to arrange thermocouples directly from the lower surface

Method used

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  • Dedicated cushion plate for measuring friction stir welding temperature field
  • Dedicated cushion plate for measuring friction stir welding temperature field
  • Dedicated cushion plate for measuring friction stir welding temperature field

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Embodiment Construction

[0017] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.

[0018] see figure 1 , a special backing plate for measuring the temperature field of friction stir welding with grooved bottom of the present invention, comprising a main body of the backing plate and set screws with slotted flat ends. The main body of the backing plate is rectangular, and its upper bottom surface and lower bottom surface have a certain degree of flatness; grooves and bosses are distributed on the lower bottom surface of the backing plate at equal interv...

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Abstract

The invention discloses a dedicated cushion plate for measuring a friction stir welding temperature field. The dedicated cushion plate for measuring the friction stir welding temperature field comprises a cushion body main body and a groove formed in the lower surface of the cushion plate main body. Multiple through holes are formed in the groove. Thermoelectric couples are arranged in the through holes. Temperature measuring ends of the thermoelectric couples penetrate through the through holes and arranged at temperature measuring points of a welded workpiece. Under the condition that the requirements for clamping of trial plates of different thickness and size are met, measuring the temperature field in a friction stir welding process is achieved and the requirements of different temperature measuring points are met so that achieving comprehensive, reliable and accurate measuring of the friction stir welding temperature field and surface features are possible. The problem that welding joint is not well formed due to sagging of plastic materials at a butt joint of welding parts in the welding process is effectively solved so that welding quality is ensured. The dedicated cushion plate for measuring the friction stir welding temperature field is simple in structure, convenient to manufacture, strong in practicality and suitable for friction stir welding of different materials and different welding sizes and measuring of the friction stir welding temperature field under the condition that size matching is ensured.

Description

technical field [0001] The invention belongs to the technical field of technical material processing and welding, and in particular relates to a backing plate of a friction stir welding machine. Background technique [0002] Friction Stir Welding (FSW), as an advanced solid-phase joining technology, has been widely used in aerospace, rail transit, shipbuilding, defense industry and other fields. Usually, the friction stir welding equipment will generate a large friction force and upsetting force during the friction stir welding process, so the weldment must be strictly clamped (including rigid support for the welded back) to ensure the quality of the welded joint . At the same time, friction stir welding is realized through the complex "thermal-mechanical coupling". The welding temperature field is the most closely related parameter to the "thermal-mechanical coupling". It has an important influence, and it is also the basis and important research content of the friction s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/26G01K7/04B23K20/12
Inventor 芦笙杨代立陈书锦陈静
Owner JIANGSU UNIV OF SCI & TECH
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