Optimization of Process Parameters for Powder Bed Fusion Additive Manufacturing Using a Linear Programming Method: A Conceptual Framework

Round 1

Reviewer 1 Report

The following comments need to be addressed by the authors:

1.      The abstract need to explain the major contributions of the research work, as the present work is more generous and therefore requires rewriting.

2.      In the Introduction section, group citations need to be completely avoided. Examples [1-5], [7-10] and so on. Individual contributions by authors are more interesting for the readers.

3.      Authors need to highlight the abbreviation when it appears first in the revised manuscript. Examples: DoE, ISO and so on.       

4.      Although a lot of advanced algorithms are available, the reason for using the linear programming method needs to be explained with novelty.

5.      It is not clear which type of Design of experimental method is used for planning the experimental matrices such as CCD, FFD, BBD, Taguchi etc.

6.      It is not clear about the reason for selecting the six variables. There are only those six major parameters for experimentation and the reason for selecting those variables and levels need to be better explained.

7.      Fig. 2 quality needs to be improved.

8.      It is confusing that Table 2 has 16 experimental runs, but for optimization, why the author used only 8 experiments in Table 4? Please give a valid justification.     

 

9.      Experimental validations for optimal conditions explained in Table 6, need to be better explained.

Author Response

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Author Response File: Author Response.pdf

Reviewer 2 Report

The manuscript entitled “metals-1995652-PBF” dealing with powder bed fusion has been reviewed. The paper has been nicely written but needs significant improvement. Please follow my comments.

 

 

1.     The abstract needs to be improved by adding some statistical values.

2.     What is the advantage of this method over Multi-objective GA?

3.     What is the future direction of this work?

4.     Laser absorptivity in AM is important which shows the quality of the parts and transition from keyhole to conduction mode. Please read and add the following ref in this area. “The effect of absorption ratio on meltpool features in laser-based powder bed fusion of IN718”.

5.     How did you set your process parameters? For example, figure 5.

6.     Please update the introduction with the new publications in the field. Authors are encouraged to read and add the following new papers in the field.

·        High-cycle fatigue properties of curved-surface AlSi10Mg parts fabricated by powder bed fusion additive manufacturing

·        Proposal of design rules for improving the accuracy of selective laser melting (SLM) manufacturing using benchmarks parts

·        Fatigue life optimization for 17-4Ph steel produced by selective laser melting

·        Recent progress on additive manufacturing of multi-material structures with laser powder bed fusion

 

 

 

 

 

 

Author Response

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Author Response File: Author Response.pdf

Reviewer 3 Report

 

The presented manuscript “Optimization of Process Parameters for Powder Bed Fusion Additive Manufacturing by Linear Programming Method: A Conceptual Framework” contains interesting results. However, I think that this manuscript requires major improvements in following areas:

·      Abstract needs to be revised. I didn’t observed any quantitative finding in abstract. It must be added.

·      Mention the types of AM techniques and justify the selected approach of present work over other additive manufacturing techniques. Following articles will be useful for the same: https://doi.org/10.1016/j.jmrt.2022.08.074  https://doi.org/10.1016/B978-0-12-814062-8.00002-9

·      Remaining introduction part and literature is written well.

·      In the last paragraph of introduction, write the novelty of your work and selected conditions for experimentations.

·      Section 2: it should be minimized.

·      Table 2: What is the basis of the selection of mentioned set of parameters?

·      Specify the upper and lower bounds of input parameters

·      Add the figure for the used experimental setup.

·      Add detailed description for techniques used to measure the output responses.

·      What was the adequate precision for the present model

·      Conclusion section need to manage properly in key points.

Author Response

Please see the attachment.

Author Response File: Author Response.pdf

Round 2

Reviewer 1 Report

Congratulations for the excellent paper.

Reviewer 2 Report

The paper is ready to publish. 

Reviewer 3 Report

The manuscript has been significantly improved in the revised version. It can be accepted now in the present form