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OwnerMarcio Batista, Valdir Furlanetto +1inventors
InventorsMarcio Batista, Valdir Furlanetto, Sergio Duarte Brandi
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A spot welding process which uses a metal insert as an insert between the sheets to be welded which belongs to the field of industrial welding, in order to prevent the presence of mark or indentation on the surface of the welds. After the welding process, as the metal insert material melts and dissolves between the overlapped sheets, the state of the art does not provide for the use of metal insert as an insert between the sheets, the spot welding process with insert between (2), made of metal powder or solid metal, which is introduced between the interfaces of the sheets (3) to be welded by the spot welding process, the insert (2) (3), by inert adhesive (4) or other material and process which performs this function, wherein during the melting process the metal insert (2) melts and dilutes together with the base material, i.e. the opposing metal plates (3). The alloy of the metallic insert (2) has chemical and physical properties compatible with the properties of the base metal sheets (3), the spot welding equipment requires that its contact electrodes (5) have the fully flat surfaces (6) and Or special contact geometry.
SPOT WELDING PROCESS WITH METALLIC ADDITION, conceives a spot welding process that does not leave marks or indentation in the sheets after the welding, being that in known processes of spot welding, the superimposed parts to be welded Are pressed against each other by means of electrodes driven by mechanical, pneumatic, hydraulic forces or a mixture thereof, then a short low voltage and high current pulse is supplied and passed through the electrodes, which are not consumable, through the base material, Wherein the method of the invention is characterized by the use of a metal insert (2) made of metals or alloys of metallic powder or of metals or solid metal alloys, which is introduced between the interfaces of the sheets (3) to be welded by (2) is positioned on the base plate (3) by inert adhesive (4) or other material and process which performs this function, wherein during the melt process the insert (2) is melted and diluted together with the base material, i.e. the opposed metal plates 3, it is emphasized that the alloy of the metal insert (2) has the chemical and physical properties compatible with the properties of the sheets (3), the spot welding equipment requires that its contact electrodes (5) have fully flat surfaces (6) and or special contact geometry.
Dependencies are inferred from the claim text.