Study Of Laser Welding Of Copper Sheets

The image is treated by matlab and simple code is built to calculate the keyhole and melted zone area.

Study of laser welding of copper sheets. On the bases of results of quality assessment it was proved that high power diode laser hpdl welded lap joints of copper sheet provide mechanical properties on the level of parent material. A single mode continuous wave cw laser source was exploited with both linear and wobbling strategies. In both cases the influence of several parameters such as laser power spot dimensions and. Different welding strategies e g.

Purpose of this research is to study laser autogenous welding process of short seam beads and filletwelds of lap joints of oxygen free copper sheets 1 0 mm thick. Purpose of this research is to study laser autogeneous welding process of short seam beads and fillet welds of lap joints of oxygen free copper sheets 1 0 mm thick. The optimum hpdl autogenous welding parameters of short seam beads and fillet weldsof lap joints of oxygen free copper sheets 1 0 mm parameters makes possible to produce high quality laserautogenous welded lap joints of copper sheets 1 0 mm thick. On the bases of results of quality assessment it was proved that high power diode laser hpdl welded lap joints of copper sheet provide mechanical properties on the level of parent material.

A prototype of a pulsed green laser with a pulse power of 4000 w was used to weld 0 8 mm thick pure copper to 0 8 mm thick sheets of a copper alloy. It was proved that high power diode laser hpdl autogenous weldedlap joints provide mechanical properties on the level of parent material originality value. Copper is highly reflective of laser light especially infrared lasers. Laser welding copper to aluminum or steel can even be achieved with copper powder and thin copper foils.

Investigations on energy coupling the threshold for deep penetration welding and achievable weld shapes were performed for both wavelengths. When welding foils considerable results have already been achieved in butt and edge welding. Purpose of this research is to study laser autogeneous welding process of short seam beads and fillet welds of lap joints of oxygen free copper sheets 1 0 mm thick. Its thermal conductivity is approximately 385 0 w m k and its melting point is 1 984 f 1 085 c.

A spatter detection was developed to evaluate the process stability during the welding process. Non overlapping and overlapping spots were considered. This cw prototype system enables first basic process studies on continuous welding of copper with green laser radiation as well as a direct comparison to a similar infrared laser system. The challenges of welding copper copper is used in a wide range of applications because it s malleable and a great conductor of both electricity and heat.

The laser generated welding keyhole and weld melted zone are observed by a high speed camera.