CNN-Based Ti-6242 Impeller Forging Process Design for Uniform Strain Distribution

Round 1

Reviewer 1 Report

Well-documented bibliographically, well-structured work. More emphasis should be placed on the conclusions, highlighting the results obtained by the authors compared to those presented in the literature.

Author Response

Thank you for taking the time to review our paper titled "CNN-based Ti-6242 impeller forging process design for uniform strain distribution" We appreciate your valuable feedback and comments.

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Reviewer 2 Report

The authors propose a systematic process design method using a CNN for uniform 8 strain distribution of Ti-6242 impeller during forging. There are problems should be noticed as following:

(1) In the abstract, the two model should be expressed in same order.

(2) The introduction should be carefully revised so as to propose the research points clearly;

(3) The figure 4 need to revise to express the process of forging clearly.

(4) It suggests to supplement the evidence of the data in figure 5. why used the data?

(5)  In the section of 3.3, the dimension error and elastic deformation were not included. Why? Please explain it and how to consider the actual dimension error and elastic deformation.

(6)  It is better to verify the models by the experimental results.

(7) The abstract and conclusion should include some key researching results and conclusion.

The language should be carefully revised. 

Author Response

Thank you for taking the time to review our paper titled "CNN-based Ti-6242 impeller forging process design for uniform strain distribution" We appreciate your valuable feedback and comments.

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Reviewer 3 Report

If the focus of the research is on the design of an impeller, it should be validated and demonstrated in the research by means of actual experiments, otherwise the focus of the research should be changed. Much of the literature is not up to date and suggests that this is not a topic of current interest. There is also a lack of section 2 Materials and Methods or similar.

Author Response

Thank you for taking the time to review our paper titled "CNN-based Ti-6242 impeller forging process design for uniform strain distribution" We appreciate your valuable feedback and comments.

Please see the attachment.

Author Response File: Author Response.pdf

Reviewer 4 Report

The authors of the article "CNN-based Ti-6242 impeller forging process design for uniform strain distribution" aimed to utilize a CNN to train the model with the strain distribution after forging for each step, enabling us to derive an appropriate preform shape that can homogenize the strain distribution during the forging process. The attained results confirmed the practicality of using computational intelligence methods to solve applied problems of materials science. In particular, it is shown that the proposed approach allows for achieving a uniform distribution of strain in the forged product. I have no significant comments on the quality and technical level of the article. I would like to note that the authors presented a thorough review of literary sources, where they described the current state of the research problem and emphasized the relevance of such research. The forging process method is very well described. In particular, the CNN U-net structure used in the study is described in detail, as well as the impeller forging process design. The quality and way of description and discussion of the obtained results deserve special attention. They are presented clearly and comprehensibly, which allows a clear understanding of the conclusions made by the authors.

Taking into account the above and taking into account the relevance of the research and the importance of the obtained results, I believe that the submitted manuscript can be published in Applied Science in the present form.

I have only one recommendation for the authors – if possible, change “Impeller [31] strain” to “Impeller I [31] strain” in the caption of Figure 2.

Author Response

Thank you for taking the time to review our paper titled "CNN-based Ti-6242 impeller forging process design for uniform strain distribution" We appreciate your valuable feedback and comments.

Please see the attachment.

Author Response File: Author Response.pdf

Round 2

Reviewer 2 Report

All the comments have been revised and corrected, and now it is appropriate for publication. There are problems should be noticed as following:

（1） The CNN in abstract should be explained.

（2） There are some errors in the text, such as 3000 W/m2·K in line 186.

（3） The authors obtained five preform shapes in line 197, but not explain the five preform shapes further. 

Author Response

Thank you for taking the time to review our paper titled "CNN-based Ti-6242 impeller forging process design for uniform strain distribution" We appreciate your valuable feedback and comments.

Please see the attachment.

Author Response File: Author Response.pdf

Reviewer 3 Report

I am sorry but as I told you previously, this paper must introduce experiments following the abstract "we constructed the process so that the initial billet goes through three steps: upsetting – preform forging – target impeller forging."

Author Response

Thank you for taking the time to review our paper titled "CNN-based Ti-6242 impeller forging process design for uniform strain distribution" We appreciate your valuable feedback and comments.

Please see the attachment.

Author Response File: Author Response.pdf