Effect of technological parameters on the mutual penetration of copper and iron in laser cladding of steel with a copper–nickel alloy

Abstract

A copper–nickel alloy was deposited on steel using a powerful fibre laser. Beads of different height and width were produced by varying the process parameters. The results of metallographic examination show that at optimum cladding conditions there are areas of unmelted steel. In areas where the steel is melted the penetration depth, the width of the transition zone from steel to copper, the depth of penetration of the cracks caused by the Rehbinder effect and the content of the iron phase in the copper layer are lower than in other conditions.

Keywords:

• Laser deposition
• welded joints of dissimilar materials
• copper–nickel alloys
• steel
• antifriction properties

Notes

Selected from Svarochnoe Proizvodstvo 2017(4) 37–42.