Dynamic and Smart Systems Laboratory
The laboratory is a state-of-the-art facility for the development and characterization of smart material systems. A range of experimental devices provides the capability to perform comparative testing for shape memory alloy actuators. The devices that will be used for the proposed research are:
Axial Torsion Bose 3300 ElectroForce with environmental (temperature control) chamber
- Performing experimental studies of material and device in temperatures between 150 °C to 350 °C
- For a variety of tests that include ASTM and ISO standards tests for medical devices, materials characterization, and long-term durability studies
- Static to 100 Hz performance with a load envelope of ±3000 N
- Versatile performance for a variety of test applications such as durability testing of orthopaedic implant devices
- Dynamic characterization of materials and components
Phenix PXM for Additive Manufacturing by Laser Melting
We have extensive experience in additive manufacturing of metal parts by Laser Sintering. Laser Sintering initially arose from rapid prototyping. However, Laser Sintering is breaking into other domains among the fabrication of prototypes and models by now. As an innovative freeform fabrication method, Laser Sintering is predestinated for the direct production of complex metal parts. By adding material in layers instead of removing material, Laser Sintering provides potential for the production of complex parts with internal features which may not be produced by any other method. Furthermore, no tools besides a laser are required for Laser Sintering. That's why Laser Sintering provides an economic and rapid method for the production of small batches and even for single parts! Today, Laser Sintering can be applied for the production of ready-to-use parts or components not only in the fields of industrial, automotive and aerospace but for medical and dental devices, too.
Laser Sintering starts with a powder material (typical particle size < 45 µm) and a CAD model of the later part. This model has to be sliced into several layers (typical layer thickness: 30 µm). Every layer contains specific information about the part’s geometry. The Laser Sintering procedure is a cyclic process of three steps:
- deposition of a thin powder layer (30 µm),
- a laser locally heats up the powder above the melting temperature according to the geometry information of the part. After solidification the molten regions remain as a solid material surrounded by lose powder.
- movement of the pistons for providing powder for the next layer and for lowering the sintering platform.
The Lab has available a Laser Sinter system of type Phenix PXM. This system is equipped with a 300 W Ytterbium fiber-laser (cw, l = 1070 nm, Æfocus ≈ 100 µm, TEM00). The operation range is 140*140*100 mm. Each process is carried out in Nitrogen or Argon to avoid oxidation of the material. With this system we mainly process materials like Nitinol, stainless steels, Titanium and Ti-alloys.
EnvisionTEC ULTRA for Additive Manufacturing of Polymers
Techne FB-08 Series Precision Fluidized Baths
Numerical Analysis of Medical Devices
Micro Epsilon Compact high speed thermoIMAGER TIM