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EOS develops precipitation-hardened stainless steel for additive manufacturing

September 10, 2017
Source: ASM International

EOS, Germany, introduces StainlessSteel 17-4PH IndustryLine, an iron-based metal alloy powder made by a technology that includes a specially developed process parameter for additive manufacturing on the EOS M 290 metal system. It is a high-strength, easily curable, highly corrosion-resistant and acid-resistant alloy that is ideal for manufacturing surgical and orthopedic instruments. Parts can be further processed, micro-blasted, and polished directly after the additive manufacturing process, or after heat treatment. 

EOS StainlessSteel 17-4PH IndustryLine meets the essential requirements of serial production via additive manufacturing, as it guarantees reproducible part quality through the highest degree of data reliability for material properties of the end product. The technology enables users to save time and cut costs considerably in the areas of downstream quality assurance and part qualification. 

Compared to conventional production processes, industrial 3D printing material properties, such as elongation at break, tensile strength, or hardness of a finished part, were previously determined based on only a small statistical population. This sometimes made it necessary to carry out elaborate tests and qualification processes. 

"Planning security and reliability are top priorities for customers who are engaged in serial manufacturing," says Chief Technical Officer Dr. Tobias Abeln. "For its StainlessSteel 17-4PH IndustryLine, EOS provides reliable and statistically proven data for the most important material properties of finished parts. 

"This significantly raises quality standards in additive manufacturing. The customer can use the data 1:1 to qualify the technology for large-scale production and therefore minimize the time required as well as cut the cost of in-house material and process qualification." 

Development and production processes for the large-scale Additive Manufacturing of components are therefore more efficient and time-to-market processes can be accelerated at the same time. 

Photo shows a medical instrument additively manufactured by Exactech of EOS StainlessSteel 17-4PH IndustryLine.



Subject Classifications

Industries and Applications | Medical Devices

Materials Processing and Treatment | Additive Manufacturing

Materials Processing and Treatment | Powder Metallurgy

Materials Processing and Treatment | Thermal Spray Technology

Metals and Alloys | Stainless Steels

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