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Directed Energy Deposition (DED) Metal 3D Printer [RPMI]

Metal additive manufacturing with a maximum height of 2100 mm is possible! RPMI's directed energy deposition (DED) metal 3D printer.

This is a directed energy deposition (DED) metal 3D printer from RPM Innovations (South Dakota, USA). It has a proven track record and high reliability across a wide range of industries, including aerospace, military, power generation, mining, gas and oil, and automotive. The "RPMI 557XR" model, which has the largest build size, can achieve metal additive manufacturing up to 2100 mm. It allows for free-form shaping with five-axis control (X, Y, Z axes / tilt and rotation table), part repair through laser cladding, and additive manufacturing on existing metal products. 【Equipment lineup】  ■RPMI 557XR  ■RPMI 222XR

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Explanation: Laser Powder Bed Fusion (LPBF) Metal 3D Printer

This is a schematic diagram explaining the laser powder bed fusion method (laser powder bed process) for metal 3D printers!!

"What is the Laser Powder Bed Fusion (LPBF) method?" For those in charge of gathering information on metal 3D printers, we provide an explanatory diagram of the Laser Powder Bed Fusion method! A series of operations is repeated for layered manufacturing: the recoater deposits powder, the laser irradiates to melt and solidify the powder, the build stage descends, the powder reservoir rises, and again, the recoater deposits powder. Excess surrounding powder from the recoater's deposition operation falls into a collection tank through the overflow opening and is sieved for recycling during the manufacturing process. *The diagram is based on Aconity3D's equipment and may not necessarily apply to all laser powder bed fusion metal 3D printers currently sold by various manufacturers.

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  • Modeling Equipment

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Tohoku Univ. Technology : Metal additive manufacturing equipment:T25-022

To suppress a smoke phenomenon and use a powder bed system more effectively.

The technology to suppress the smoke phenomenon in the metal lamination process of powder bed system is attracting attention. Since the smoke phenomenon inhibits the beam irradiation, the melting of the metal powder becomes insufficient, and the deterioration of the laminated product is caused. To solve this problem, countermeasures such as temporary sintering have been taken, but they are not sufficient, and research and development are continuously carried out.  As a result of repeated research focusing on the fact that each metal powder is covered with a thin oxide film, the present invention devised an apparatus capable of suppressing the smoke phenomenon more effectively than ever before. Since the smoke phenomenon is mainly caused by the electrification of each metal powder by the irradiation beam, the problem was solved by pretreating the powder bed. As a result, development of a laminated molding apparatus capable of effectively suppressing the smoke phenomenon and development of an auxiliary apparatus mountable to an existing apparatus are expected.

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Inkjet-type sand mold additive manufacturing device 'SCM-800II'

Direct molding of sand molds from 3D CAD data! No wooden patterns required, resulting in higher quality and shorter delivery times compared to traditional methods.

The "SCM-800II" is an inkjet-based sand mold additive manufacturing device capable of handling complex shapes with undercuts. It achieves stable dimensional quality through high-precision molding and dramatically shortens construction time with high-speed molding. Additionally, the recoat sand used in this product is dry sand, which can be reused as is without hardening, known as "Catalyst Coated Sand (CCS)." 【Features】 ■ Free design that integrates complex shapes without the need for division ■ No need for mold division and high precision in thin sections ■ Reduces the number of cores and shortens the time for prototyping ■ Binder jetting method using an inkjet head ■ Proposes increased productivity and reduced running costs with the new technology sand for sand mold 3D printers, "CCS."

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