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NPTEL is the largest e-repository in the world of courses in engineering, basic sciences and selected humanities and management subjects. [1] The platform and materials have been jointly developed by Indian Institutes of Technology (IITs) and Indian Institute of Science. [2] The initiative is funded by the central Ministry of Education. The ...
The insulating material has traditionally been a form of SiO 2 or a silicate glass, but recently new low dielectric constant materials, also called low-κ dielectrics, are being used (such as silicon oxycarbide), typically providing dielectric constants around 2.7 (compared to 3.82 for SiO 2), although materials with constants as low as 2.2 are ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 28 January 2025. Manufacturing processes This section does not cite any sources.
An SLS machine being used at the Centro de Pesquisas Renato Archer in Brazil.. Selective laser sintering (SLS) is an additive manufacturing (AM) technique that uses a laser as the power and heat source to sinter powdered material (typically nylon or polyamide), aiming the laser automatically at points in space defined by a 3D model, binding the material together to create a solid structure.
Laser metal deposition (LMD) is an additive manufacturing process in which a feedstock material (typically a powder) is melted with a laser and then deposited onto a substrate. [1] A variety of pure metals and alloys can be used as the feedstock, as well as composite materials such as metal matrix composites.
"Materials and Manufacturing: Electromagnetic Forming of Aluminum Sheet" (PDF). Pacific Northwest National Laboratory. Archived from the original (PDF) on 2005-12-18 "Electromagnetic Hemming Machine And Method For Joining Sheet Metal Layers". US Patent and Trademark Office. Archived from the original on 2018-05-18
Textile testing is the process of measuring the properties and performance of textile materials—textile testing includes physical and chemical testing of raw materials to finished products. Textile testing assists textile production in selecting various types of fibers and their transformation into yarn , fabric, and finished goods such as ...
3D printing, also referred to as additive manufacturing (AM), involves manufacturing a part by depositing material layer by layer. [12] There is a wide array of different AM technologies that can do this, including material extrusion, binder jetting, material jetting and directed energy deposition. [13]