PureSinter from 3D printing specialist Desktop Metal offers one-pass debinding and sintering of metal parts produced using either additive manufacturing or traditional manufacturing methods in a 15.8 liter retort.
The PureSinter furnace is compatible with powder metal parts produced using additive manufacturing processes such as Bound Metal Deposition (BMD) and Binder Jetting (BJT). The furnace is also suitable for traditional processes such as Metal Injection Molding (MIM) or Press and Sinter (PM).
For decades, the powder metal industry has struggled with the contamination of sintering furnaces by hydrocarbons and other waste emitted from powder metal parts. These contaminants build up on the walls and other surfaces in the furnace, causing unwanted chemical reactions and furnace reliability issues.
“Rather than trying to simply mitigate the factors that lead to poor performance in an all-in-one debinding and sintering furnace, we have eliminated them with an innovative all-new design,” said Ric Fulop, Founder and CEO of Desktop Metal. “This is the first product from Desktop Metal aimed at manufacturers using both Additive Manufacturing and traditional manufacturing methods.
Developed over five years, the PureSinter furnace is based on a patented approach that eliminates traditional challenges in furnace design. It features hot walls that prevent contamination build-up and an airtight environment to ensure efficient removal of waste and achieve the highest levels of purity.
Even after hundreds of runs, the PureSinter furnace shows little or no contamination or deposits. This ensures the production of high-quality sintered parts that are equal to or better than those produced in premium furnaces. Titanium can also be sintered with a high degree of reliability without complex preparations, as the furnace is qualified for this application.
“We have put the PureSinter through a prolonged period of testing to rigorously verify our new design, and it has exceeded all expectations. PureSinter is an exemplary demonstration of the innovation for which Desktop Metal and our engineers are known. We believe this furnace will revolutionize sinter-based AM and the traditional furnace industry.”
The PureSinter furnace is compatible with all metal printing platforms and binders from Desktop Metal. The system has already been validated with 14 metal powder and binder combinations, including stainless steels, tool steels, superalloys and reactive metals. Further material validations are in progress.
The furnace reaches a maximum temperature of 1,420°C and is qualified for use with various process gases such as argon, nitrogen, forming gas and air. It has 17 fans and a retractable ceiling vent for fast and even cooling and short cycle times.
The PureSinter furnace will be unveiled June 25-27 in Los Angeles at Rapid + TCT, North America’s largest event for additive manufacturing and industrial 3D printing technologies. Desktop Metal will be located at booth #2139 and will showcase a wide range of its AM 2.0 technologies for metals, polymers and ceramics.
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