Anti-Friction and Anti-Wear Mechanisms of Micro Textures and Optimal Area Proportion in the End Milling of Ti6Al4V Alloy
Round 1
Reviewer 1 Report
The problem considered at work is very important and undertaken actually by scientists. There are science works which try to improve the efficiency and stability of tool life. But there is still lack of good solutions on the market. The authors of this work designed and prepared the micro textures with a regular arrangement on the surface of the friction pair between the tool and workpiece. This solution can effectively reduce the friction and improve the tool cutting performance. The manuscript is interesting and well written. However, there are several points that I would like to address:
What was the time of the experiments under established friction conditions? Was the time of friction the same for all experiments? To compare wear for individual experiment parameters, it would be important to show the wear coefficient, e.g. wear/revolution [µm/r]. To compare material’s wear for parameters used in individual experiments, it would be important to show the wear coefficient in some way, e.g. wear/revolution [µm/r]. Lines 26-27: More literature data may be cited here. Lines 27-67: Number of citations should be placed after the names of authors, i.e. "Enomoto and Sugihara of Osaka University, Japan [citation]"; "Koshy et al. [Citation] prepared ...". Such a notation improves the readability of the text. Line 71: "YG8 hard alloy" please provide more information about that material. Figure 8 Why surface 1, 2, 3 were used in Figure 8; and in the description is stage 1, 2, 3? Should they not be identical names, the current state is somewhat misleading. Figure 15: Please, format the description below the picture –furstly title, then description of a and b. Some small mistakes were indicated in attached manuscript.
Comments for author File: 
Comments.pdf
Author Response
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Author Response File: Author Response.pdf
Reviewer 2 Report
Dear authors.
This paper is focused on the improvement of the milling process of the Ti64 alloy, from a study of the tribological interference between cutting tool textured rake surfaces and part material, form the view point of textured patterns and the optimal areas of application.
The topic of this paper is relevant and of interest to the audience of this journal. It is based on rigorous academic standards, and the content is technically accurate and sound.
In order to improve some aspects of the document, I have added some reviews in the pdf. I consider the suggested changes as "minor changes".
Comments for author File: Comments.pdf
Author Response
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Author Response File: Author Response.pdf
Reviewer 3 Report
The paper topic is important and interesting from a practical point of view. This paper can be published but after the above suggestions:
Abstract: The abstract is expected to include a brief digest of the research, that is, new methods, results, concepts, and conclusions only. The abstract needs to be more focused and achievements needs mentioned clearly. At the moment abstract is more like an introduction than abstract. Please add some information from the conclusion (quantifications).
Introduction based on references only from one side of world. I personally feel that this part of paper is not concise enough from a reader’s perspective. Introduction must provide a comprehensive critical review of recent developments in a specific area or theme that is within the scope of the journal (advanced manufacturing), not only a list of published studies or a bibliometric one. Introduction is expected to have an extensive literature review followed by an in-depth and critical analysis of the state of the art. References section should be extensive about information connecting with inclined surfaces. Please look on paper published by prof Szymon Wojciechowski. I suggest add information to better describe what other researchers have done in this area. I suggest add important and new articles from this field:
Modeling of cutter displacements during ball end milling of inclined surfaces, Archives of Civil and Mechanical Engineering, 15 (4), pp. 798 – 805 (2015).
Precision surface characterization for finish cylindrical milling with dynamic tool displacements model, Precision Engineering, 46, pp. 158 – 165 (2016).
Investigation on the edge forces in ball end milling of hardened steel, International Journal of Mechanical Sciences, 119, pp. 360 – 369 (2016).
E. Budak. Analytical models for high performance milling. Part I: Cutting forces, structural deformations and tolerance integrity International Journal of Machine Tools & Manufacture, 46 (2006), pp. 1478 – 1488
L.N. López de Lacalle, A. Lamikiz, J.A. Sanchez, M.A. Salgado. Effects of tool deflection in the high-speed milling of inclined surface. International Journal of Advanced Manufacturing Technology, 24 (2004), pp. 621 – 631
The strengths and limitation of applied approach should be clearly identified for the readers of the paper.
Figs. 1, 3, 16 and 17 do not contribute anything important to the paper and should be removed.
Figs. 11-13 are known figures and the source should be cited; this is an sensitive issue.
The discussion is shallow and needs more details, the observations and future trends. This chapter should be connected with others published papers.
Some of the bullet points on the conclusion are simplistic; Please try to emphasize your novelty, put some quantifications, and comment on the limitations. This is a very common way to write conclusions for a learned academic journal. The conclusions should highlight the novelty and advance in understanding presented in the work.
Author Response
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Author Response File: Author Response.pdf
Round 2
Reviewer 3 Report
Congratulations, the paper is ready for publication
