Joining of metallic and/or ceramic materials with the help of a glass ceramic filler material and a laser beam; Joint with two metallic and/or ceramic materials parts

摘要

The method comprises creating a hole in one of the components to be connected using a focused laser, supplying a bore of a ceramic filler material, melting the glass-ceramic filler material by energy input of the defocused laser, forming a gas-tight material connection between the components to be joined, inserting a carbon dioxide laser, a neodymium:yttrium aluminum garnet (Nd:YAG) laser, a fiber laser or a laser disc, and establishing a point-like joint connection. A binder-free solder is used as a glass-ceramic filler. The powdered glass solder is added on one side of a vibration unit. The method comprises creating a hole in one of the components to be connected using a focused laser, supplying a bore of a ceramic filler material, melting the glass-ceramic filler material by energy input of the defocused laser, forming a gas-tight material connection between the components to be joined, inserting a carbon dioxide laser, a neodymium:yttrium aluminum garnet (Nd:YAG) laser, a fiber laser or a laser disc, and establishing a point-like joint connection. A binder-free solder is used as a glass-ceramic filler. The powdered glass solder is added on one side of a vibration unit. The focusing/defocusing of the laser is carried out by a relative movement of the laser to the components to be joined by an optical device. The components to be joined are arranged in an assembly at a distance of 0.1-2 mm. The laser is continuously operated during the entire assembly process. The first component at the site of drilling exhibits a maximum thickness of 1.5 mm. The bonding material is added to the drilling site prior to the creation of the hole in the first component of bonding material, and the bonding material is melted by the energy input of the laser. The laser drilling of the first component is carried out through the melted bonding material, so that the drilling of molten joining material is carried out through the bore between the components to be joined. An independent claim is included for a joint between two metal and/or ceramic surface components.