S Kamal

Lattice structures are getting lots of momentum in various fields due to their eccentric properties [1] . It is very important to have easy method to design these lattice structures. Lattice_Karak [2] helps in getting the work done. It is free software with UI made for students and researchers. Using Lattice_Karak  helps in designing various TPMS structures, export them into stl file for further processing like 3D printing and Finite Element analysis.   Lattice_Karak can be downloaded using the below link. https://drive.google.com/file/d/1WWL-UbPzErFCFVFJqw1as9w0M61aMxB4/view?usp=sharing   Videos on how to further use lattice_karak. https://youtu.be/CuHQwsxPa3I   https://sites.google.com/iith.ac.in/lattice-karak/home   Suggested materials for understanding more about TPMS: 1)      https://doi.org/10.1016/j.addma.2017.12.006 2)      https://doi.org/10.1016/j.matdes.2017.03.018 3)      https://doi.org/10...

  Below is the MATLAB program for the generation of TPMS lattices. clc; clear all; a=pi;      %d     No of unit cells s=pi/10;  [x,y,z]=meshgrid(-a:s:a,-a:s:a,-a:s:a);   u = (cos(x).*cos(y).*cos(z))- (sin(x).*sin(y).*sin(z)); ; % d TPMS formula isosurface (x, y, z, u,0);

 Effect of Shielding Gas on parts manufactured by WAAM. Wire arc additive manufacturing (WAAM) is a fusion manufacturing process in which the heat energy of an electric arc is employed for melting the electrodes and depositing material layers for wall formation or for simultaneously cladding two materials in order to form a composite structure. Effect of shielding gas  Argon  Low arc temperature and low thermal conductivity  Nitrogen  Free burning arcs are unstable N2 being a diatomic molecule, first will dissociate into its atoms and only then ionize. So the formation of the ionization column is harder in N2     ACM (80% Ar + 20% CO2)   The best shielding gas compared to the above gases References: Chaturvedi, M.; Scutelnicu, E.; Rusu, C.C.; Mistodie, L.R.; Mihailescu, D.; Subbiah, A.V. Wire Arc Additive Manufacturing: Review on Recent Findings and Challenges in Industrial Applications and Materials Characterization. Metals 2021, 11, 939. ht...

  The below report gives detailed information on the preparation of Bioink. press the below link to access it Click here https://docs.google.com/document/d/1tRARvLOMNCCgVrJRtgExFnajDo-ZFRaM/edit?usp=sharing&ouid=116321863313590654612&rtpof=true&sd=true Image source:  Gopinathan J, Noh I. Recent trends in bioinks for 3D printing. Biomater Res. 2018 Apr 6;22:11. doi: 10.1186/s40824-018-0122-1. PMID: 29636985; PMCID: PMC5889544.   Biofabrication lab @IITH

The below report gives detailed information on the preparation of Hydrogel. press the below link to access it Click here https://docs.google.com/document/d/1Tmflgdsj4Gpyhp9PlwN96Tk6bUeCU3Lx/edit?usp=sharing&ouid=116321863313590654612&rtpof=true&sd=true Image source:    Pati, F., Jang, J., Ha, DH. et al. Printing three-dimensional tissue analogues with decellularized extracellular matrix bioink. Nat Commun 5, 3935 (2014). https://doi.org/10.1038/ncomms4935     Biofabrication lab @IITH

       The below report gives a detailed report on printing a prosthetic socket. Press the below link to access it    Click here https://docs.google.com/document/d/1PrcXwssPLtQHWdPk6Z9SVTCNRkbn68xk/edit?usp=sharing&ouid=116321863313590654612&rtpof=true&sd=true  Biofabrication lab @IITH