Freeform Hybrid Manufacturing: Binderjet, Structured Light Scanning, Confocal Microscopy, and CNC Machining^†

Round 1

Reviewer 1 Report

Please look at the comments. Thank you.

#1.Introduction
- Page 03/Line 117: Sentence contains unknown term "2643 - part 3".
- Page 03/Line 134: Sentence contains missing term "dimensions and finish. of the application domain".

#2. Materials and Methods
- Page 05/Line 174: Please provide more information about the infiltration method.

#4. Discussion
- Page 11/Line 279: Error from SiC sample ranged from 70 µm to -70 µm and not -70 µm to -70 µm.
- Page 12/Line 282: Please provide the timing for the chronology of the infiltration process, clamping, machining, scanning, and measuring of the surface. Figure 10 shows that the material shrinks after machining due to the curing of the cyanoacrylate and that the shrinkage was greater in the center of the sample where there was more uncured cyanoacrylate. It would be nice if the results of specimens with adequate cure time were added to allow for an objective discussion.

Author Response

Reply is attached.  Thank you.

Author Response File: Author Response.pdf

Reviewer 2 Report

In this paper, Freeform hybrid manufacturing: binderjet, structured light scanning, confocal microscopy, and CNC machining, authors present manufacture a SiC freeform surface using a hybrid manufacturing sequence that employs BJAM to product the preform and also evaluates the viability of machining cyanoacrylate-infiltrated BJAM SiC preforms.

Comments and suggestions

 1. Equation 1 is the same with one in the paper Fabrication of freeform silicon carbide components by hybrid manufacturing, indicated in reference 19. Please cite the reference even if it is your paper. If the Equation 1 is not yours, please cite the reference.

2. Reference 19 has no author. Please revise.

 

3. Figures 1-7 are the same with the figures 1-7 in the paper Fabrication of freeform silicon carbide components by hybrid manufacturing (Reference 19). Please cite the reference even if it is your paper.

4. At the level of the microstructure of the preform, what is the opinion of the authors regarding the porosity, and deposition defects.

 

Author Response

Reply is attached.  Thank you.

Author Response File: Author Response.pdf