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Making ideas tangible - in mechanical engineering, prototypes provide quickly available models that speed up product development, visualise new concepts and significantly eliminate design errors. In addition to series parts, igus® has extensive experience in the production of special parts and prototypes for a wide range of applications in motion and can provide you with expert support for your project.
Sample components and series production from a single source
1. rapid prototyping: Upload the 3D model of your functional component quickly and easily to the online 3D printing service. Here you can immediately see the price, delivery time and material selection. In addition, the manufacturability with regard to wall thicknesses and component size is checked in parallel. igus® only processes its own plain bearing materials in 3D printing, where the wear resistance is up to a factor of 50 higher compared to conventional 3D printing materials.
2. Rapid Tooling (print2mold®): If special material requirements are placed on the material that cannot be met with the existing 3D printing materials, print2mold® is used. In addition, print2mold® is chosen if prototypes or pre-series components are to be made from the material that will later be used for series production. In the print2mold® process, the injection mould is made from plastic or metal using additive manufacturing, which is up to 80% cheaper than conventionally produced injection moulds. The moulds produced in this way are then used to produce your special wear part from 5 business days using injection moulding. The moulds can be used for several orders, which enables further cost savings.
3. rapid manufacturing: Once the prototype has proven itself in terms of shape and material for your application, the desired components can be reordered using the most suitable manufacturing process for you. This can be Rapid Tooling (10 to 10,000 pieces), mechanical production from bar stock (10 to 10,000 pieces), regular injection moulding (from 3,000 pieces) or laser sintering (1 to 10,000 pieces). We are happy to advise you - igus® supports you in all steps of product development.
Wear-resistant plastic for fast prototype construction with our own systems
The process used for prototype production depends primarily on the requirements of the application. The mechanical specifications of a sample are determined not only by the material, but also by the printing process and the specific realisation. The time and quantity of prototypes to be produced also influence the choice of printing process.
SLS (selective laser sintering)
This process is very well suited to the production of individualised single parts and series of up to 10,000 pieces. In this process, a laser melts a thermoplastic powder layer by layer, creating the specified model. Prototypes produced using this manufacturing process are characterised by a particularly high load-bearing capacity. It is the most commonly used additive manufacturing process at igus®, as strength, precision and component price are superior. Various finishes, such as colouring or smoothing, are also offered.
FDM (Fused Deposition Modelling)
Based on special plastic filaments, this process produces particularly robust components in small quantities. A major advantage of the FDM process is the large selection of materials for special requirements such as high temperatures or food contact, as well as the comparatively uncomplicated combination of different materials in the production of a prototype. However, complex geometries cannot be modelled as flexibly with this process as with the SLS process.
Rapid Tooling (print2mold®): Injection moulded parts from additively manufactured injection moulding tools
For industrial prototyping, the high-volume production of functional prototypes and for special material requirements, it is often worthwhile using additively manufactured tools for injection moulding. In this way, a larger selection of materials can be used, as not every plastic is available as a 3D printing material. On the one hand, this technology makes it possible to produce technical prototypes that are largely identical to the end product; on the other hand, the special features of the injection moulding process limit the freedom of design in contrast to prototypes from the 3D printer. The injection moulds are made of metal or synthetic resin using the stereolithography (SLA) process, depending on the requirements and the number of units needed.
Subtractive processes: bar stock
Prototypes made from bar stock are also characterised by the fact that both the material and the mechanical specification can already be reproduced and tested in their full functionality at the test stage. In this process, material is removed mechanically, for example with a milling machine, in order to produce the required workpiece from the raw material. The advantage of this technology is that, unlike 3D printing, there are no specific restrictions, such as the minimum wall thickness. The choice of material for prototyping with bar stock is also greater than in additive manufacturing. The cost advantage of this process lies in the production of large-volume or particularly simple parts.
Other common prototyping processes
While igus® uses the processes mentioned above for the production of plastic prototypes, there are various other processes for different materials in the field of prototype production, such as vacuum casting, contour crafting, laser powder forming, space puzzle moulding, layer laminate manufacturing and laser powder forming.
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