Abstract

The effect of thermal regimes and some technological methods (the application of intermediate compact metal inserts and nanomodifying additives) on the quality of laser-welded permanent joints of porous titanium or stainless steel plates has been experimentally studied in this work. It has been established that the formation of a high-quality defectless seam requires the use of an intermediate compact (nonporous) metal insert placed butt to butt between the edges of welded plates. In this case, the position of a focal spot should be installed at a depth equal to the thickness of a plate, i.e., on its lower surface. To form a bead joint or a joint flush to the plates to be welded together, the height of an insert must exceed the thickness of the plates. The application of nanomodifying titanium nitride based additives increases the structural dispersity and uniformity of a seam, thus producing a positive effect on the mechanical characteristics of a welded joint.

中文翻译：

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利用紧凑型刀片和纳米粉末研究多孔金属的激光焊接

摘要

在这项工作中，已通过实验研究了热工况和某些技术方法（应用中间致密金属嵌件和纳米改性添加剂）对多孔钛或不锈钢板的激光焊接永久接头质量的影响。已经确定，要形成高质量的无缺陷接缝，需要使用中间的致密（无孔）金属嵌件，该金属嵌件对接放置在焊接板的边缘之间。在这种情况下，应将焦点的位置安装在与板的厚度相等的深度上，即在其下表面上。为了在要焊接的平板上形成焊缝或平焊缝，嵌件的高度必须超过平板的厚度。