JP2003320474A - Method for welding metallic thin film - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method which can be applied in various uses by mounting a metal with thin plate thickness to a frame or a body part by seam welding. <P>SOLUTION: The seam welding is executed by giving tension to the metallic thin plate. As a method for giving the tension, the method to provide a camber or to press the metallic thin plate to the frame is used. Machining for boring porous holes and for boring slit holes or the like is performed to avoid welding distortion. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of welding and fixing a metal thin film to a frame body part by providing tension and strain relief to the metal thin film when it is used for various purposes.

[002]

2. Description of the Related Art Conventionally, it was difficult to weld and fix a metal thin film. Therefore, a structure in which a metal thin film is physically sandwiched by a thick plate has been used, and an integrally molded product such as electroforming has been used.

[003]

The technique for welding a metal thin film is limited, and it has been difficult to realize due to welding distortion. We also tried using metal thin film welding because it can be welded to various materials by seam welding.

[004]

[Means for Solving the Problems] When simply fixed by welding, shrinkage characteristics due to welding heat Distortion occurs due to the difference in heat balance between welded products. As a method of solving this, seam welding is performed with tension applied to the metal thin film before welding. Weld strain relief is provided near the weld.

[0095]

BEST MODE FOR CARRYING OUT THE INVENTION How to apply tension depends on the shape of the welded material. As shown in Fig. 1, the frame and frame with the metal thin film and camber attached are fixed by seam welding. In this case, when the metal thin film is removed from the welding jig, tension is applied to the metal thin film by the restoring force of the frame and the metal thin film is distorted. As shown in Fig. 2, when the camber cannot be added to the body part, the body part to be welded is pressed against the thin metal film in the stretched state, or conversely, the metal thin film side is pressed to adjust the pressing pressure and seam welding. To do. Then, as a processing method for releasing the distortion during welding, as shown in Fig. 3, processing processing such as perforation slit processing and cutting is added near the welded portion.

[0096]

EFFECTS OF THE INVENTION Since the welding method of the metal thin film itself is new, the metal thin film and the frame frame body parts are less utilized.
However, since the welding method is simple, it can be expected to expand its applications. As the applications are further expanded, it is likely that heat balance adjustment will be required depending on the shapes of the metal thin film and the frame and frame body parts, and more processing methods will be required.

[Brief description of drawings]

FIG. 1 shows a case where a camber is attached to a frame and seam welding is performed.

[Fig. 2] When seam welding is performed by applying tension to the metal thin film side.

FIG. 3 shows a case where strain relief processing is performed by applying tension to the metal thin film side of the frame.

[Fig. 4] Example of seam welding machine for welding metal thin films

[Explanation of symbols]

1 metal thin film 2 frame 3 body parts 4 camber 5 slit processing

Claims (2)

[Claims] 1. When fixing a screen mesh thin film wall of a metal thin film to a frame frame body part or the like, a seam welding fixing is performed by providing a strain relief function such as a slit perforation and a slit processing near the metal thin film welding portion. 2. A frame is provided with a camber on a frame body part and seam-welded to remove distortion by the restoring force of the camber. Alternatively, the frame body member is pressed against the metal foil to apply tension to the metal thin film and perform seam welding.