Mathematical Model for Metal Transfer Study in Additive Manufacturing with Electron Beam Oscillation

Round 1

Reviewer 1 Report

The present manuscript proposed a mathematical model for metal transfer in additive manufacturing with electron beam oscillation. The manuscript is well written and organized. Therefore, before accepting the manuscript, the author should clarify the significance of this model and the difference from other models. In addition, the adopted equation needs a proper citation.

Author Response

Please see the attachment.

Author Response File: Author Response.pdf

Reviewer 2 Report

The presented study concerns computer modeling of heat exchange and mass transfer during the metal deposition process, as is the case, for example, in additive technologies.
The presented scope of research regarding the verification of the proposed and developed model only in the area of ​​geometric similarity of the real process with the model.
Main note:
in this type of problems, it seems advisable to present the compliance of the model with the actual process of heat transfer (presentation of temperature fields distribution on maps).
There is also no indication of what such a model can be used for in practical aspects.
Detailed comments:
- fig. 4 is a proprietary study? or taken from literature. If from the literature, whether or not it should be marked in the description of Fig.
- color maps are included in Figs. 5, 7 and 8. In such cases, specify what is pictured with color (temperature?) And what is the scale assigned to a given color;
Summarizing, I suggest adding a comparison of the thermal decomposition map (heat transfer) with the photo of the structure of the layer made.

Author Response

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Author Response File: Author Response.pdf

Reviewer 3 Report

The article is devoted to a topical issue, namely the search for fundamental principles of control over the process of electron-beam additive manufacturing, based on the simulation of heat and mass transfer.
The introduction provides a brief literature review and formulates the research problem.
The second section provides a detailed description of the mathematical model and modeling techniques.
The third section presents the results of calculations and their experimental verification based on observations of the printing process. The results are accompanied by a sufficient volume and informative discussion.
In the conclusion, the main results are presented, confirmed on the basis of the performed studies.

Author Response

Thank you very much for your appreciation of our manuscript.

Round 2

Reviewer 2 Report

Regarding the reply to a general comment. I am aware of the difficulties of thermal measurements in "live" processes. In my remark, I meant more to show the comparison of the simulation results with the distribution of the temperature impact and the changes in the microstructure and the range of impact on its form. Such a comparison may also confirm the correctness of the model, and the execution of metallographic specimens after the performed process is not a problem. The zone of thermal interaction resulting from the process revealed in this way is revealed in the structural changes.
I hope that such a comparison will be found in the next publication in this area.
I accept the other changes.