Effects of Electroshock Treatment on Residual Stress and the Geometric Dimensions of Components Fabricated with Wire Arc Additive Manufacturing

Round 1

Reviewer 1 Report

Dear authors, 

I present some comments and suggestions below.

- The order of chapter number, figure number, and table number was duplicated.

- Line 117: “The duration time of each operation was 10 s, and the frequency was 50 Hz.”

è please explain the exact meaning

-       Fig.2: The welding path is not clearly visible. It would be better to enlarge only the V-groove part to show the path.

-       Fig. 6,8,9: in line 117, “The duration time of each operation was 10 s, and the frequency was 50 Hz.” Is the current direct current or alternating current?

Fig.6 time 25s, Fig. 8 time 150s, Fig.9 100s. What does x-axis time mean?

-       Fig. 4, Fig.10-12,

èWhat is the resolution of a micrometer?

Did you measure along the same line in 5 cases?

Is the measurement data reliable?

-       Table 4, residual stress

èWhat kind of processing was done for the stress measuring point?

Surface stress is very sensitive to the state of the surface. After wire cutting, after welding, and after electroshock treatment, were the residual stresses measured at the same location with the same surface condition?

Stress is a tensor. What stress component was measured?

#1 and #2 are points of symmetry about the center line. Why is the stress so different , +186 MPa,  -137 MPa?

-       Line 276: “…By comparing the micrographs before and after EST, it was found that there was no obvious change of microstructure in every welding area.”

è The middle of surfacing layer, the interface of surfacing and the base metal microstructure appear to be significantly different. It seems necessary to analyze the microstructure in more detail.

-       Page 16:

è It would be better to find the residual stress using the relational expression between the dislocation density (?? = ?0 + ?̅???√?)

and the residual stress and compare it with the measured value.

-       There are many parts where the English expression does not clearly express the intentions and research contents of the authors. The English and editing quality of the manuscript should be greatly improved.

Author Response

Please see the attachment.

Author Response File: Author Response.pdf

Reviewer 2 Report

Dear Authors!

I have revised your manuscript "Effects of Electroshock Treatment on Residual Stress and Geometric Dimension of Components Fabricated with Wire and Arc Additive Manufacturing" and found it worth to publish after minor corrections. 

My notes to be answered:

Wire electrode cutting - is it EDM cutting? If so, please, use EDM term.

Line 99 - Table 1, but must be Table 2.

Line 115-116 - no marked positions are given in Figure 1. Please, correct.

More details on X-ray determination of RS. Please, show diffraction plane and psi (kai or phy) tilting direction. This affects the direction of measured RS.

Line 146. SEM/TEM can't be made "before and after" EST, since the samples are taken from different specimens. Please, rephrase.

Figure 6. From the graph it is seen that EST takes less than 5 sec, while line 118 says about 10 sec. Please, explain.

SEM and TEM studies always provoke the questions how representative shown images. Please, comment how did you select the images.

 

Regards ... 

Author Response

Please see the attachment.

Author Response File: Author Response.pdf