SOLDER-FREE JOINT AND WELDING METHOD THEREOF

    公开(公告)号:US20240391009A1

    公开(公告)日:2024-11-28

    申请号:US18694422

    申请日:2022-03-23

    Inventor: Zhen HUANG

    Abstract: A solder-free joint and a welding method thereof are provided. The welding method includes the following steps: S1: uniformly coating a flux on a surface of each of a plurality of materials to be soldered, thereby forming a flux layer; S2: performing binding according to the surface of the material, the flux layer, and the surface of the material; and S3: putting the materials into a hot-pressing device, and setting a desired pressure and temperature for soldering. In pretreatment before soldering, the welding method does not add any solder. The obtained solder-free joint has a desirable conductivity and desirable mechanical properties.

    SOLID-STATE JOINING METHOD, SOLID-STATE JOINED JOINT, SOLID-STATE JOINED STRUCTURE, AND SOLID-STATE JOINING DEVICE

    公开(公告)号:US20240316689A1

    公开(公告)日:2024-09-26

    申请号:US18580395

    申请日:2022-07-26

    CPC classification number: B23K20/129 B23K2103/04 B23K2103/10 B23K2103/12

    Abstract: Provided are: a solid-state joining method with which it is possible to control the discharge direction of burrs and to realize sufficient joining strength; a solid-state joined joint and a solid-state joined structure that are obtained through the solid-state joining method; and a solid-state joining device that can be suitably used in the solid-state joining method. A solid-state joining method characterized by having a first step for bringing end parts of one material being joined and another material being joined into butting contact with one another and forming a joining interface, a second step for increasing the temperature in the vicinity of the joining interface by using an external heating means, and a third step for plastically deforming the joining interface to thereby discharge burrs and form a solid-state joined interface, the plate thickness of the end part of the one material being joined and/or the other material being joined is reduced, and the solid-state joining method having a gradient such that the plate thickness decreases on a side where discharge of the burrs is suppressed.

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