Additive Fabrication and Additive Technique: A Survey

2019 ◽  
Author(s):  
Vivek Dwivedi ◽  
Manish Raj ◽  
Ajeet Yadav ◽  
Anuj Kumar Sharma
Keyword(s):  
Additive Fabrication ◽  
Additive Technique

Investigation on influence of Nitinol wire made tailored structure manufactured using MIG additive technique for machine tool operations

2018 ◽  
Vol 5 (10) ◽  
pp. 21350-21354
Author(s):  
Priya Chouhan ◽  
Shashwat Sharma ◽  
Shreyas Gulhane ◽  
I.A. Palani ◽  
B.K. Lad
Keyword(s):  
Machine Tool ◽  
Nitinol Wire ◽  
Additive Technique

Mechanical Behavior of Ti-6Al-4V Manufactured by Electron Beam Additive Fabrication

2013 ◽  
Author(s):  
Leila Ladani ◽  
Lalit Roy
Keyword(s):  
Mechanical Properties ◽  
Electron Beam ◽  
Lead Time ◽  
Aerospace Industry ◽  
Tensile Tests ◽  
Test Results ◽  
Great Resistance ◽  
Additive Fabrication ◽  
Anisotropy Effect ◽  
The Cost

Additive Layer Fabrication, in particular Electron Beam Additive Fabrication (EBAF), has recently drawn much attention for its special usability to fabricate intricately designed parts as a whole. It not only increases the production rate which reduces the production lead time but also reduces the cost by minimizing the amount of waste material to a great extent. Ti6Al4V is the most common type of material that is currently being fabricated using EBAF technique. This material has been used in aerospace industry for several reasons such as excellent mechanical properties, low density, great resistance to corrosion, and non-magnetism. The effects of build direction of layers (namely, addition of layers along one of the x, y & z directions with respect to the build table) and the anisotropy effect caused by it has not been explored vigorously. This anisotropy effect has been investigated in this work. Different mechanical properties such as Yield Strength (YS), Ultimate Tensile Strength (UTS), and Modulus of Elasticity (E) of these three types of Ti6Al4V are determined using tensile tests and are compared with literature. The tensile test results show that YS and UTS for flat-build samples have distinguishably higher values than those of the side-build and top-build samples.

scholarly journals INTERVIEW WITH MARKUS KAYSER

2016 ◽  
Vol 13 (26) ◽  
pp. 9-13
Author(s):  
L. A. BRANDINI DE DE BONI ◽  
E. GOLDANI
Keyword(s):  
High Melting ◽  
Melting Points ◽  
Additive Fabrication ◽  
Basalt Rock

In the current edition of the Journal, we interviewed Mr. Markus Kayser, a Ph.D. student at MIT. Mr. Kayser was interviewed about his Solar Sinter project, a machine that can melt sand using nothing more than sunlight. We asked him about the possibility of melting different materials other than sand, like basalt, since basalt and sand have high melting points. The basalt rock melts from 984 °C (1803.2 F) to 1260 °C (2300 F) and sand from 1600 °C (2912 F)to 1723 °C (3133,4 F). Mr. Kayser developed what appears to be a simple and affordable machine, which not only melts sand but also utilizes the process of digital additive fabrication to form useful objects.

scholarly journals Challenges in a Hybrid Fabrication Process to Generate Metallic Polarization Elements with Sub-Wavelength Dimensions

Materials ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 5279
Author(s):  
Stefan Belle ◽  
Babette Goetzendorfer ◽  
Ralf Hellmann
Keyword(s):  
Final Height ◽  
Three Dimensional ◽  
Fabrication Process ◽  
Degree Of Polarization ◽  
Direct Laser Writing ◽  
Free Standing ◽  
Laser Writing ◽  
Additive Fabrication ◽  
Direct Laser ◽  
Sub Wavelength

We report on the challenges in a hybrid sub-micrometer fabrication process while using three dimensional femtosecond direct laser writing and electroplating. With this hybrid subtractive and additive fabrication process, it is possible to generate metallic polarization elements with sub-wavelength dimensions of less than 400 nm in the cladding area. We show approaches for improving the adhesion of freestanding photoresist pillars as well as of the metallic cladding area, and we also demonstrate the avoidance of an inhibition layer and sticking of the freestanding pillars. Three-dimensional direct laser writing in a positive tone photoresist is used as a subtractive process to fabricate free-standing non-metallic photoresist pillars with an area of about 850 nm × 1400 nm, a height of 3000 nm, and a distance between the pillars of less than 400 nm. In a subsequent additive fabrication process, these channels are filled with gold by electrochemical deposition up to a final height of 2200 nm. Finally, the polarization elements are characterized by measuring the degree of polarization in order to show their behavior as quarter- and half-wave plates.

Additive fabrication of custom pedorthoses for clubfoot correction

2010 ◽  
Vol 16 (3) ◽  
pp. 189-193 ◽  
Author(s):  
Douglas Cook ◽  
Vito Gervasi ◽  
Robert Rizza ◽  
Sheku Kamara ◽  
Xue‐Cheng Liu
Keyword(s):  
Additive Fabrication
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