Caulking tool of sheet metal for joining

摘要

The present invention is a combination of materials of different thicknesses used in the automotive industry, electronics, and office equipment, heterogeneous materials of different materials, and when foreign materials such as paper or fiber are inserted between three or more layers of thin materials and metal sheets. This invention relates to a caulking tool for joining steel sheets that can be joined to Edo. More specifically, a punch tool and a die tool, which are bonded to a press device and which plastically deform two or more sheet metals, are joined. Each shank can be easily joined to the press, and the punch mounted inside the stripper of the punch tool is tapered, and the shank joined to the die tool's cap is screwed together to bond and plate the sheet metal. This deformed or cracked material does not require a post-treatment process, and is bonded to a press device (not shown) to form two or more sheet metals (S). In the punch tool P and the die tool D which are plastically deformed and joined, a shank 10 is formed on the upper part, and the punch is attached to the inner hole 12 of the stripper 11 attached to the press and installed at the lower part ( 13 is a punching tool (P) configured to be tapered; and a die tool (D) formed by screwing the cap 21 with the braid 20 installed thereon with the lower shank 22. Caulking tool.