What is 3D printing about?
3D printing includes different printing processes. Processes are mainly additive, because materials are deposited only when necessary, producing much less wastage of materials in comparison with traditional production techniques. Every technology is designed for a specific use with a wide range of materials, defining at the same time applications suitable for the printer.
3D printing was originally used for rapid production of prototypes used for shape and adaption tests. Today, the principal applications are becoming functional tests of prototypes in specific work conditions and the production of end parts too.
Roboze materials are the result of scientific collaborations, designed to engineer technical materials for functional tests, aiming to speed up those operations linked to the testing phase of old and new products. The mechanical, chemical and thermal features of developed materials are connected to the operating tests of the end part that will be produced with mass methods.
Thermoplastic polymers are “young” materials but the intense scientific research and trial activities led to the development of high performance polymers suitable for several industrial applications, which were once under the control of metals.
The applications benefiting the most from these materials are aeronautics and aerospace, due to the possibility to reduce the weight of those components previously made in metals. This reduction can reach up to 50% with a following reduction of fuel and emissions in favor of the environment.
Among the other applications we can find the automotive industry, the production of rapid injection moulds as well as moulds for the metal forming, but also robotics and medical fields.
Roboze R&D area has developed a new extruder (Roboze patent pending HVP Extruder) able to manage these high performance polymers – PEEK, Carbon PA (Nylon12 loaded with carbon fiber) and PEI in particular, with their great resistance and stiffness, offering excellent performances in metal replacement. Boasting amazing elastic properties and seam resistance, they’re also able to keep good structural performances even at high temperatures and can at the same time resist corrosion, which can’t always be assured by metals.
Production of custom end parts
During the last few years, thanks to the introduction of mass accessible digital solutions, the market is living a new changing of the demand, increasingly pressing need to produce not products but ad hoc solutions for every single customer.
Today 3D printing is the only technology able to produce custom end parts or small production series. Traditional methods can’t offer the same advantages in terms of time and costs both from the point of view of the manufacturing and the final customer.
When we talk about the production of end parts it’s important to focus on the machine’s performances in terms of repeatability.
Roboze has developed a patented mechatronic system of the X and Y axes (Beltless System) assuring a mechatronic accuracy of 25 microns and high repeatability of the printed objects.
The Group’s innovation comes in the removal of the belts, causing relative accuracies and complex maintanance operations, by introducing the direct mechatronic movement of the X and Y axes entrusted to helical hardened steel racks and pinion.
In typically direct movement systems like Roboze Beltless one, the placing accuracy as well as the repeatability of the movements is assured by the helical toothing of the gears, which guarantees a silent and smooth movement but also placing accuracies of 0,025 mm. The user-friendly maintenance involves the light coating of grease on the racks.