EOS Metal additive technology leads to lower injection cycle times
EOS, a German supplier of metal laser sintering units, has sealed a partnership deal with a shop that has already created faster injection tooling. In addition, the company recently introduced an upgraded version of a production unit.
Spritzguss+Formenbau Bergmann, in Telgte, Germany, has been using its first metal additive manufacturing system to improve tooling design. The company purchased an Eosint M 280 from EOS, and has also become a service provider to the supplier.
Bergmann designs and produces injection mould tools and also manufactures high-grade plastic components using its more than 70 injection moulding machines.
Creating cooling channels that conform to the cavity
The purchase of the generative technology has allowed the shop to produce tool inserts, such as cores and slides, as well as prototypes directly from metal. The production system is based on the direct metal laser sintering process, or DMLS, which builds components layer by layer from 3D CAD data. Constant monitoring during construction is said to boost the quality and repeatability of components.
The system’s supplier said the unit allows users to achieve complex geometries such as freeform surfaces, fins and cooling channels. In particular, it is possible to create conformal cooling channels using DMLS, which reduce moulding cycle times and improve the quality of the plastic components produced. The material most commonly employed in tool construction is EOS Maraging Steel MS1, the company said.
According to Augustin Niavas, business development manager for tooling at EOS, the shop is an important player in the sector. “We are pleased to have found a strong and highly professional partner for injection moulding, one which has many years of experience with conventional technologies but which is at the same time open to innovative technologies.”
Niavas noted that the shop’s selection suggests generative production methods are becoming more mainstream. “The fact that Bergmann has chosen EOS technology reflects the level of maturity that additive manufacturing has now attained.” The new partnership allows the companies to provide a wide range of services, he noted. “Together, we are able to cover the entire process chain, from the engineering design stage of the tool to the finished plastic component.”