PECM Issue 46 2020 | Page 10

EDITOR’S CHOICE EXPERTS IN THE FIELD 3DPRINTUK 3DPRINTUK Expands Material & Post Processing Capabilities Anyone familiar with 3DPRINTUK will be aware that to date the company’s 3D printing services have been dedicated to the selective laser sintering (SLS) process, specifically with the PA2200 (nylon) material. Nick Allen, 3DPRINTUK’s CEO and founder explains how this was absolutely intentional. “Over the past decade, as we have grown the business organically and steadily, we were committed to developing the very best in-house process/material interface that would in turn ensure the best possible outcomes for our clients’ parts in terms of quality, consistency and repeatability.” NEW MATERIAL This approach has led to the 3DPRINTUK team becoming experts in their field, with a profound understanding of the SLS process, and is now allowing them to apply their expertise into new areas, namely through the introduction of PrimePartST — a polyether block amide (PEBA) material —designated 2301 —from the thermoplastic elastomer (TPE) family of materials . Allen continues: “This is a big day for us. There were limiting factors in our previous facility that prevented us from adding new materials. Now with our new factory and with our in-house developed order management system, we look to introduce a number of new offerings, with PEBA being the first of these.” PEBA 2301 exhibits flexible, rubber-like Actual size: A. 50mm x 50mm x 16mm B. 13.5mm x 13.5mm x 41mm C. 102mm x 102mm x 40mm characteristics similar to TPU and other TPE’s, but it is slightly harder and stronger. PEBA 2301 also demonstrates good chemical resistance, water resistance, long term stability, with excellent detail resolution possible and rubber-like fatigue behaviour. The material comes in matt white, but PEBA parts can easily be dyed if the natural finish is not suitable for any application. One of the key properties of PEBA 2301 is obviously its rubber-like flexibility. PrimePartST has a higher melting point than most resin-based elastomers, and is thus ideally suited to rugged end-use applications. It is also suited for batch production runs, and its elasticity makes it an ideal material for key functions, including anti-vibration and impact protection. Typical applications include air ducts, encapsulation components, handles, medical, seals and gaskets, and sports equipment and footwear. Allen continues, “With everything we offer, we aim to be fully transparent. This new material is not perfect. To be fair, what material is? So understanding its limitations is as important as maximizing its strengths.” The extensive testing carried out on the PEBA 2301 material (and the insight garnered from it), means that the 3DPRINTUK team is now able to fully support clients with applications that require the flexible properties that this material offers. Understanding both material limitations and how to get the best from the machine / material interface is a hallmark of the highquality service standard that 3DPRINTUK offers all of its clients. NEW FINISH In addition to the PEBA 2301 introduction, 3DPRINTUK is now also offering a shot peening service for low, medium, and high volumes of parts, following investment in more hardware from DyeMansion in the form of the PowerShot S system, which utilises the proprietary PolyShot Surfacing (PSS) process. 10 PECM Issue 46