scholarly journals Study of Making Implant Plate and Screen of Femur Bone Internal Fictation From Hydroxyapatit Bovine And Polymer Biodegradation Material Using 3D Printers On Mechanical Strength

2019 ◽  
Vol 494 ◽  
pp. 012070
Author(s):  
Solechan ◽  
JP Rubijanto ◽  
Joko Triyono ◽  
Eko Pujiyanto
Keyword(s):  
Mechanical Strength ◽  
Femur Bone ◽  
Polymer Biodegradation ◽  
3D Printers

Research on the Influence of the Orientation of Deposited Material on the Mechanical Properties of Samples Made from ABS M30 Material Using the 3D Printing Method

2015 ◽  
Vol 809-810 ◽  
pp. 429-434
Author(s):  
Răzvan Păcurar ◽  
Ancuţa Păcurar ◽  
Adrian Radu Sever
Keyword(s):  
Mechanical Properties ◽  
Finite Element Method ◽  
3D Printing ◽  
Mechanical Strength ◽  
3D Printer ◽  
The Finite Element Method ◽  
Building Orientation ◽  
3D Printers ◽  
Polymer Deposition ◽  
Printing Method

The majority of commercially available 3D printers utilize an additive manufacturing (AM) technique known as molten polymer deposition, whereby a solid thermoplastic filament is forced through a computer-driven extrusion nozzle. Even if it sounds simple at a first look, there are a series of factors that significantly influence the mechanical strength of parts manufactured by using the 3D printing method. The present work tries to investigate by using the finite element method and experimental research how the building orientation is influencing the mechanical strength of samples made from ABS M30 material using a Desktop 3D Printer machine that has been originally designed and produced at the Technical University of Cluj-Napoca (TUC-N).

scholarly journals Perancangan 3D Printer Tipe Core XY Berbasis Fused Deposition Modeling (FDM) Menggunakan Software Autodesk Inventor 2015

2018 ◽  
Vol 3 (2) ◽  
pp. 110-115
Author(s):  
Anief Awalia Nurul Amri ◽  
Wirawan Sumbodo
Keyword(s):  
Mechanical Strength ◽  
Fused Deposition Modeling ◽  
3D Printer ◽  
Design Data ◽  
Frame Design ◽  
3 Dimensional ◽  
Fused Deposition ◽  
Embodiment Design ◽  
3D Printers ◽  
Deposition Modeling

The purpose of this research are to determine the mechanical strength of a 3D Printer frame design of type Core XY using Autodesk Inventor 2015 and to assess the build quality of the 3D Printers. This is an R&D research following the Pahl & Beitz’s methods which comprises of the following stages: Task or specifications, planning and clarification, conceptual design, embodiment design, and detailed design. Data were analyzed using descriptive statistics. The results show that the mechanical strength of the 3D printer frame is satisfactory and is proven by the Autodesk Inventor 2015 analysis. The printed workpiece has a tolerance of ± 0,5 mm. It is concluded that the type core XY 3D Printer is ready to use for printing 3-dimensional objects.Tujuan penelitian ini adalah untuk mengetahui kekuatan struktur mekanik dari perancangan desain rangka 3D Printer tipe Core XY menggunakan software Autodesk Inventor 2015 dan mengetahui kualitas produk hasil 3D Printer yang dibuat. Penelitian ini merupakan jenis perancangan dengan metode Pahl & Beitz dengan tahapan penjabaran tugas atau spesifikasi, perancangan konsep, perancangan wujud, dan perancangan secara terperinci. Analisis data menggunakan statistik deskriptif. Hasil analisis data menunjukan bahwa kekuatan rangka 3D Printer cukup baik dibuktikan dengan analisis menggunakan software auodesk inventor 2015 dan hasil benda kerja yang diproses menggunakan 3D Printer mempunyai nilai kepresisian dengan toleransi ± 0.5 mm  dibuktikan dengan hasil pengukuran benda kerja dengan menggunaakan alat ukur. Jadi disimpulkan bahwa 3D Printer tipe core XY yang dibuat layak digunakan untuk proses pembuatan benda 3 Dimensi

FORMULATION AND DEVELOPMENT OF FAST DISSOLVING TABLET OF METOCLOPRAMIDE: AN ANTI-EMETIC DRUG

2019 ◽  
Vol 8 (6) ◽  
Author(s):  
Avilash Carpenter ◽  
M.K. Gupta ◽  
Neetesh Kumar Jain ◽  
Urvashi Sharma ◽  
Rahul Sisodiya
Keyword(s):  
Mechanical Strength ◽  
Standard Procedure ◽  
Flow Property ◽  
Storage Conditions ◽  
Angle Of Repose ◽  
Dissolution Time ◽  
Disintegration Time ◽  
Powder Blend ◽  
Standard Curve ◽  
The Stability

Aim: The main of the study is to formulate and develop orally disintegrating fast dissolving tablet of Metoclopramide hydrochloride. Material & Methods: Before formulation and development of selected drug, the standard curve in buffer was prepared and absorbance at selected maxima was taken. Then two different disintegrating agents were selected and drug was mixed with disintegrating agents in different ratio. Various Preformulation parameters and evaluation of tablet i.e. disintegration time, dissolution time, friability, hardness, thickness were measured by standard procedure. Result & Discussion: The angle of repose for all the batches prepared. The values were found to be in the range of 30.46 to 36.45, which indicates good flow property for the powder blend according to the USP. The bulk density and tapped density for all the batches varied from 0.49 to 0.54 g/mL and 0.66 to 0.73, respectively. Carr’s index values were found to be in the range of 23.33 to 25.88, which is satisfactory for the powders as well as implies that the blends have good compressibility. Hausner ratio values obtained were in the range of 1.22 to 1.36, which shows a passable flow property for the powder blend based on the USP. The results for tablet thickness and height for all batches was found to range from 4.45 to 4.72 mm and 3.67 to 3.69 mm, respectively. Hardness or breaking force of tablets for all batches was found to range from 32.8 to 36.2 N. Tablet formulations must show good mechanical strength with sufficient hardness in order to handle shipping and transportation. Friability values for all the formulations were found to be in the range of 0.22 % to 0.30 %. Conclusion: Orally disintegrating tablets were compressed in order to have sufficient mechanical strength and integrity to withstand handling, shipping and transportation. The formulation was shown to have a rapid disintegration time that complied with the USP (less than one minute). The data obtained from the stability studies indicated that the orally disintegrating mini-tablets of MTH were stable under different environmental storage conditions. Keywords: Formulation & Development, Fast Dissolving Tablet, Metoclopramide, Anti-Emetic Drug, Oral Disintegrating Tablet

Plasma Enhanced Chemical Vapor Deposition of Porous Organosilicate Glass ILD Films With k ≤ 2.4.

2003 ◽  
Vol 766 ◽  
Author(s):  
Raymond N. Vrtis ◽  
Mark L. O'Neill ◽  
Jean L. Vincent ◽  
Aaron S. Lukas ◽  
Brian K. Peterson ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Chemical Vapor Deposition ◽  
Mechanical Strength ◽  
Thermal Annealing ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Organosilicate Glass

AbstractWe report on our work to develop a process for depositing nanoporous organosilicate (OSG) films via plasma enhanced chemical vapor deposition (PECVD). This approach entails codepositing an OSG material with a plasma polymerizable hydrocarbon, followed by thermal annealing of the material to remove the porogen, leaving an OSG matrix with nano-sized voids. The dielectric constant of the final film is controlled by varying the ratio of porogen precursor to OSG precursor in the delivery gas. Because of the need to maintain the mechanical strength of the final material, diethoxymethylsilane (DEMS) is utilized as the OSG precursor. Utilizing this route we are able to deposit films with a dielectric constant of 2.55 to 2.20 and hardness of 0.7 to 0.3 GPa, respectively.

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