welded structure with at least three laser welding droplets arranged along a virtual closed curve, and corresponding laser welding method

摘要

Patent Specification: "Welded structure with at least three laser welding droplets arranged along a virtual closed curve, and corresponding laser welding method". The invention relates to a welded part (1) formed at a junction between a plurality of steel plates (10) which is formed from a plurality of drops (11) arranged along a virtual closed curve (12). and when the thickness of the thinnest steel plate (10) of the steel plates (10) is denoted by t, the diameter d of each of the drops (11) is 3vt or less, and the distance p between adjacent drops is 2d or more, but no more than 5d, and the number of drops is three or more.