China3D printingNet, March 1st, the latest project of Kimya, the additive manufacturing materials division of the technology company ARMOR, continues to provide the railway industry with3D printingservice.
Due to the need to develop protective cover components in 1982, an unnamed railway supplier recently turned to Kimya for help through manufacturing services at the Kimya factory3D printingA small number of polymer parts. Since there is no longer a mold for the lid, the spare parts must be redesigned from scratch before production.By using the PEKK filament developed in-house by Kimya Lab, the company’s R&D center, the team was able to deliver3D printingProtective sleeve, which saves costs and shortens delivery time.
Kimya Business Development Director Pierre-Antoine Pluvinage explained: “Designing traditional molds will require longer development time, and the cost incurred can only be made up by producing thousands of parts. The Kimya factory uses our own materials through small batch production. Provide partners with a finished product suitable for the purpose.”
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Protective cover” alt=”
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Protective cover” width=”620″ height=”496″ />
3D printingThe protective cover. The picture comes from Kimya.
From laboratory to factory
The project started in the Kimya laboratory, where ARMOR provided its customers with customized PEKK SC filaments. The material is specially designed to withstand high temperatures of up to 260°C, while having flame retardant properties, abrasion resistance and even chemical resistance. Therefore, it is necessary to meet the strict quality standards of the railway sector and strictly meet the fire and smoke safety requirements of the EN45545 standard.
Pluvinage added: “This cooperation requires us to meet the certification standards of the customer’s business department. That’s why we decided to propose PEKK SC, which is a filament produced directly by the Kimya laboratory of our R&D center, because it meets the customer’s specified cigarettes. /Fire Standard.”
Without digital twins or molds as references, engineers at the Kimya plant were forced to use a single paper plan that they could use.Although the original parts were made of PVC, the team was able to3D printingA set of PEKK SC versions and successfully used them for end use.
A supplier spokesperson said: “We compared several technologies for manufacturing these parts in small quantities. From the perspectives of economy, technology and delivery time, additive manufacturing proved to be the right choice. Assembly testing and FAI quality conducted by ARMOR The submission of the documents successfully completed the entire quality acceptance process of these additive manufacturing parts. Only3D printingIn order to meet our needs with this efficiency. “
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Kimya’s PEKK filament next to his PEKK object” alt=”
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Kimya’s PEKK filament next to his PEKK object” width=”620″ height=”413″ />
3D printingKimya’s PEKK filament next to the PEKK object. Picture from 3DGence.
Spare parts for transportation3D printing
Due to the inherent complexity of the mechanical components on trains and trams, spare parts are often required. Unfortunately, many of these faulty components can be traced back decades, which means that their production lines may no longer be running, and there is no guarantee that the corresponding digital files exist.In this case, it turns out3D printingIt is a valuable asset for maintenance and vehicle upgrades.
Just last month, the public transportation company Azienda NapoletanaMobilità (ANM) sought the help of the Italian engineering company 3DnA to redesign the mechanical components of the Naples bus and tram network.The company reverse-engineered and3D printingThe “trolley head”, these parts connect each tram to the air power line of the network. With no components available on the market, the delivery time for traditionally manufactured components will exceed one year.
Elsewhere, technology company Siemens Mobility Services has previously used FDM from OEM Stratasys 3D printingTechnology produces spare parts for the railway industry in Germany and the UK. Last year, the company also announced the expansion of its railway maintenance business to Russia, and has since been supporting another 13 high-speed Velaro trains built for its railway company RZD.
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