Manipulating Mechanical Properties of WAAM Deposited ER70S-6 Steel by Forced Cooling




Abstract: A wire-arc additive manufacturing machine was developed for testing forced cooling spray of water on samples printed from ER70S-6 steel wire on a mild steel substrate. Tests show a significant increase in hardness and the average uniaxial tensile strength of the as-printed material increased from 554 MPa to 1064 MPa with no post-processing treatment. Optical microscopy indicates a transition from pearlite and ferrite to lath martensite with forced cooling.

Authors: Michael R. Maughan and Andre Corpus

Keywords: WAAM, Additive Manufacturing, Steel, Spray cooling

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Page Count

8 pages


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