Investigation on Mechanical Properties of ER70S-6 Copper-Coated Steel
Wire Sample Produced by Wire Arc Additive Manufacturing (WAAM) 2023-01-5105
Wire arc additive manufacturing technology has become a promising alternative
technology to high-volume metal deposition in many manufacturing industries like
aerospace and automotive due to arc stability, long process cycle time, and
formability. In this work, the Fanuc arc mate robot forms a single-pass,
single-layer structure with a 1.2 mm diameter wire of copper-coated steel. Pure
Argon gas is used as a shielding gas to protect the weld from oxidation.
Different welding speed is carried out to analyze the bead thickness and height.
Current and voltage as a heat input with optimal welding speed, a 10 kg straight
wall is built with an operative building rate of 3.94 kg/h. The Rockwell
hardness test is used to determine the hardness of the material, and it is
discovered that it is 80 HRB. The tensile test is performed to determine the
tensile strength and yield strength of the component; the measured values are
483.88 N/mm2 and 342.156 N/mm2, respectively. Increasing the welding speed
affects the weld quality and formability, therefore using the optimal parameter
gives better results in the WAAM process.