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Binder jet 3D printing, known variously as "Powder bed and inkjet" and "drop-on-powder" printing, is a rapid prototyping and additive manufacturing technology for making objects described by digital data such as a CAD file. Binder jetting is one of the seven categories of additive manufacturing processes according to ASTM and ISO. [1]
A binder jetting 3D printer uses particles of a fine-grained powder, which are fused together using a binder, to form a three-dimensional object. [2] In principle, it consists out of two separate chambers: One functions as a reservoir for the powdered material, the other one as the printing chamber.
The binder jet approach begins by spreading a fine layer of powder onto the platform using a roller. [9] Subsequently, a removable printhead sprays droplets, selectively binding the powder to create the desired structure. The platform is then lowered, and a new layer of powder is spread while the printhead continues to deposit droplets.
Multi-jet printheads were designed and incorporated by this group. A small company in New Hampshire, R.H. Research, owned by Robert Howard [ 18 ] researched printing from 1982 -1983 and decided the single-nozzle inkjet was a possible fit and he then contacted an inventor at Exxon who named Al Hock as a good choice for this project.
3D printing, or additive manufacturing, is the construction of a three-dimensional object from a CAD model or a digital 3D model. [1] [2] [3] It can be done in a variety of processes in which material is deposited, joined or solidified under computer control, [4] with the material being added together (such as plastics, liquids or powder grains being fused), typically layer by layer.
The magnesium oxide in the sand chemically reacts with the binder, forming a mineral-like material, resulting in a mineral-like material with a microcrystalline structure. Compared to concrete, which has low resistance to tension and, as a result, needs iron reinforcement, D-Shape's structures have relatively high tension resistance and do not ...
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] These processes have varied types of extruders and extrude different materials to achieve the final product.
Ultrasonic Consolidation (UC) or Ultrasonic Additive Manufacturing (UAM) is a low temperature additive manufacturing or 3D printing technique for metals. [1]UAM part examples: Micro heat exchanger and dissimilar metal part with aluminum and copper.