3D Printer HardwareAcquisitions, Mergers & PartnershipsMetal Additive Manufacturing

Greene Group Industries acquires Holo technology

Including its patented PureForm that enables rapid prototyping and scaled production of complex metal parts

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Greene Group Industries (GGI), a leader in the development and manufacture of complex components via metal injection molding, has acquired patented PureForm AM technology and all assets from Holo. PureForm is a bound metal stereolithographic process that enables rapid prototyping and scaled production of complex metal parts.

Holo’s technology is a great addition to our comprehensive offering of metal injection molding, stamping, and precision machining. This transaction enables GGI to deliver prototype metal parts, with a surface finish and feature resolution comparable to metal injection molding, in a best-in-class lead time of less than two weeks,” said Alexis Willingham, CEO of Greene Group Industries. “PureForm additive manufacturing technology will strengthen our partnerships with customers by supporting faster iterations through the entire product life cycle, while GGI maintains its premium engineering service and quality performance.”

Greene Group Industries acquires Holo technology, including PureForm that enables rapid prototyping and scaled production of metal parts. Holo’s technology, a form of bound metal stereolithography, starts with a proprietary slurry of MIM powder and photoresistive polymer binder. Parts are built layer-by-layer with high-resolution, high-throughput optical printers developed by Holo. The resulting “green state” parts are then baked in a sintering oven to remove all traces of binder, resulting in highly pure final parts with qualities approaching bulk material.

The Greene Group deal with Holo is ideal in that the backend process is virtually identical to MIM. PureForm offers three distinct advantages in the realm of manufacturing. Firstly, it enables the rapid production of parts at a low cost, without the need for molds or time-consuming delays. Secondly, the printed parts boast a surface finish and feature resolution that not only meets but often surpasses that of Metal Injection Molding (MIM). Thirdly, PureForm facilitates the efficient scaling of parts production to volumes of up to tens of thousands per month, all while remaining cost-effective. Moreover, should production demands exceed this threshold, transitioning to MIM for higher quantities is a straightforward process due to the similarities between the two manufacturing processes.

Holo can print any material that can be powderized and sintered. Holo’s binder technology is compatible with a wide spectrum of materials including metals, complex alloys and ceramics. As a slurry, it requires no costly, time-consuming powder handling. Material efficiency is very high, and virtually all material is incorporated in printed parts. In addition, Holo’s proprietary polymer is engineered to vaporize during part sintering. The result is highly pure parts with properties approaching bulk material. Holo says that PureForm material purity exceeds that of other additive approaches. As an example, Holo’s additive-manufactured PureForm copper is 99.9% pure, achieving thermal and electrical conductivities comparable to bulk copper.

The terms of the transaction were not disclosed.

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746 composites AM companies individually surveyed and studied. Core composites AM market generated over $785 million in 2023. Market expected to grow to $7.8 billion by 2033 at 25.8% CAGR. This new...

Edward Wakefield

Edward is a freelance writer and additive manufacturing enthusiast looking to make AM more accessible and understandable.

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