Welding wire for welding titanium/steel dissimilar materials and manufacturing process of welding wire

Abstract

The invention relates to a welding wire for welding titanium steel dissimilar materials and a manufacturing process of the welding wire. The welding wire is a stranded welding wire composed of a silicon bronze welding wire ERCuSi-A and a monel nickel-copper alloy welding wire ERNiCu-7, namely, the welding wire is formed by twisting five strands of ERNiCu-7 welding wires and two strands of ERCuSi-A welding wires, one strand of the ERCuSi-A thin wires is a center wire, and the other six strands of thin wires are spirally wound around the periphery of the center wire. The technical problems that the contact strength is low, cracks are easily formed along a fusion line, and breakage is easily caused are solved, the technical problems that in the welding wire drawing process, brittle fracture is prone to occurring, drawing is difficult, the manufacturing cost is high, and consumable electrode welding wires meeting production and use are difficult to manufacture are solved.

Description

technical field [0001] The invention belongs to the field of welding technology, and in particular relates to a welding wire for welding titanium / steel dissimilar materials and a manufacturing process thereof. Background technique [0002] Special vehicles are important equipment that reflects the country's comprehensive national strength and combat effectiveness, and lightweight is an important direction for the development of special vehicles in the future. The application of high-strength titanium alloys in special vehicles has become a development trend. Titanium alloys have the characteristics of high specific strength, good anti-corrosion performance, and light weight, which can achieve significant weight reduction of vehicles. They have been widely used in aerospace, nuclear submarines, weapons, etc. field. However, due to the limitations of titanium alloy performance, the parts inside the car body and turret cannot be completely replaced by titanium alloys. They nee...

AI Technical Summary

Problems solved by technology

[0004] The purpose of this invention is to provide a welding wire for welding titanium / steel dissimilar materials and its manufacturing process, which solves the problem of low contact strength and easy formation of cracks along the fusion line and technical problems prone to breakage

It solves the technical problems of brittle fracture, difficulty in drawing, high manufacturing cost and difficulty in making molten electrode wire that meets production requirements during the wire drawing process.

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