Sub-Microstructure of Surface and Subsurface Layers after Electrical Discharge Machining Structural Materials in Water
, Sergey V. Fedorov 1, Khaled Hamdy 1,2 and Pavel A. Podrabinnik 1
Round 1
Reviewer 1 Report
You say: The images confirmed the obtained data from scanning electron microscopy that demonstrated the nature of wear processes and the obtained surfaces' topology, but the discussion is weak.
Figure 3 nees more explanation.
We know Russian people invented EDM but today the technology is spread wide and your state of the art does not cover it. Recent work about EDM in MDPI are missed, by Beranoagirre in gamma alloys, and the main contribution in International Journal of Computer Integrated Manufacturing 19 (7), 727-735 about Computer simulation of wire-EDM taper-cutting the Wire EDM is key today in some cuts in turbines, Chaudhari, JJ Vora had other works.
In summary, the work is very sound, please improve a little the state of the art. Changes are mandatory.
Author Response
Response to Reviewer 1 Comments
Dear reviewer,
Thank you very much for your kind evaluation of our work. We do agree with all your proposals and comments and have modified the manuscript according to them. The revised fragments are marked yellow.
We hope that with your comments the manuscript will be suitable for publishing in Metals and will attract many potential readers of the journal.
Kind regards,
Authors.
Point 1: You say: The images confirmed the obtained data from scanning electron microscopy that demonstrated the nature of wear processes and the obtained surfaces' topology, but the discussion is weak.
Response 1: Thank you for noticing. The sentence is not correct in its structure. We have revised it: “The results of optical and scanning electron microscopy, obtained surfaces' topology reveals the nature of electrical erosion wear processes thermal sublimation and dissociation of the material of the supplied directed concentrated energy flux (discharge channel) and subsequent deposition of secondary structures of the material of the secondary order (complex compounds).” We have added a few paragraphs to the discussion.
Point 2: Figure 3 nees more explanation.
Response 2: Thank you for pointing it. We have added a paragraph and improved the discussion.
Point 3: We know Russian people invented EDM but today the technology is spread wide and your state of the art does not cover it. Recent work about EDM in MDPI are missed, by Beranoagirre in gamma alloys, and the main contribution in International Journal of Computer Integrated Manufacturing 19 (7), 727-735 about Computer simulation of wire-EDM taper-cutting the Wire EDM is key today in some cuts in turbines, Chaudhari, JJ Vora had other works.
Response 3: Thank you for knowing that the method was firstly proposed by the Soviet scientists, spouses Lazarenko during the Second World War. There plenty of outstanding works were published since 1942. The most recent works related to the research subject are mentioned in the introduction. The mentioned works cannot be mentioned in the list of references due to next reasons:
1) they do not relate to the research object – electrical discharge machining nickel-containing conductive materials using a brass tool electrode in a water medium:
|
Reference |
Research object |
|
Sensitivity Analysis of Tool Wear in Drilling of Titanium Aluminides By: Beranoagirre, Aitor; Urbikain, Gorka; Marticorena, Raul; et al. METALS Volume: 9 Issue: 3 Article Number: 297 Published: MAR 6 2019 |
EDM drilling hole in intermetallics |
|
Computer simulation of wire-EDM taper-cutting By: Sanchez, J. A.; Plaza, S.; Lopez De Lacalle, L. N.; et al. INTERNATIONAL JOURNAL OF COMPUTER INTEGRATED MANUFACTURING Volume: 19 Issue: 7 Pages: 727-735 Published: OCT-NOV 2006 |
Computer simulation of taper-cutting and angular error (WEDM) |
|
Pareto optimization of WEDM process parameters for machining a NiTi shape memory alloy using a combined approach of RSM and heat transfer search algorithm By: Chaudhari, Rakesh; Vora, Jay J.; Prabu, S. S. Mani; et al. ADVANCES IN MANUFACTURING Volume: 9 Issue: 1 Special Issue: SI Pages: 64-80 Published: MAR 2021 |
WEDM intermetallics |
2) we are afraid of conflict of interest issues if the reviewer is one of the authors of the mentioned papers.
Point 4: In summary, the work is very sound, please improve a little the state of the art. Changes are mandatory.
Response 4: Thank you for a kind evaluation of our work. We are very grateful to you for your kind appreciation of our work and wish you an outstanding success in your current projects.
Author Response File: 
Author Response.pdf
Reviewer 2 Report
1.The text and background colors in Figure 1 need to be adjusted for better reading. 2.Please add the machine tool and workpiece photos. 3. What is the basis for the selection of EDM factors (in Table 2)? 4. Figure 2 and Table 5 are duplicated, and it is recommended to delete one. 5.Please give the electrical parameters of the machining in Figure 3. 6.Please give the electrical parameters of the machining in Figure 4. 7.Section 3.3-3.5, the necessary analysis needs to be given. 8. Please add the future outlook in Section 5.Author Response
Response to Reviewer 2 Comments
Dear reviewer,
Thank you very much for your kind evaluation of our work. We do agree with all your proposals and comments and have modified the manuscript according to them. The revised fragments are marked green.
We hope that the manuscript will be suitable for publishing in Materials and will attract many potential readers of the journal with your comments.
Kind regards,
Authors.
Point 1: The text and background colors in Figure 1 need to be adjusted for better reading.
Response 1: Thank you for your proposal. It is revised.
Point 2: Please add the machine tool and workpiece photos.
Response 2: Thank you for your proposal. The relevant figures are added.
Point 3: What is the basis for the selection of EDM factors (in Table 2).
Response 3: Thank you for your question. The factors were chosen based on previous experience. The relevant passage is added.
Point 4: Figure 2 and Table 5 are duplicated, and it is recommended to delete one.
Response 4: Thank you, it is revised.
Point 5: Please give the electrical parameters of the machining in Figure 3.
Response 5: Thank you, it is revised.
Point 6: Please give the electrical parameters of the machining in Figure 4.
Response 6: Thank you, it is revised.
Point 7: Section 3.3-3.5, the necessary analysis needs to be given.
Response 7: Thank you for your proposal. The analyses are given in Section 4.2 (Discussion). The relevant passages are provided. We cannot show it in the Results section since it has mentioned references suitable only in the Discussion section. Otherwise, we can mix results and Discussion and call the section “Results and Discussion.”
Point 8: Please add the future outlook in Section 5.
Response 8: Thank you for pointing it. The relevant passage is provided.
Author Response File: Author Response.pdf
Round 2
Reviewer 1 Report
Paper is OK, congrats, i recommen to follow in this line, taking into account the works of leading groups for future works.
Reviewer 2 Report
The revision is good.
