The implementation of MMAM -project is divided into work packages described below.
The MMAM Centre of Expertise
The ultimate goal in MMAM is to establish a Centre of Expertise in additive manufacturing. With investments in equipment, research and innovation resources, this project will increase national and international competitiveness of collaborative enterprises through new and innovative production materials and new expertise in 3D printing, while enhancing the profile of the region.
The established RDI collaboration will also play a crucial role when creating the practices, working methods, roles and processes for the MMAM Centre of Expertise and form a strong foundation for continuous development and cooperation beyond the life of the project.
Lead researcher: Mika Jokinen
Multicomponent materials for drug delivery, dental applications and tissue engineering
Objective: Rheological optimization of materials (biodegradable ceramics, polymers and their composites including functional agents, e.g., drug molecules or nanoparticles) for low temperature 3D bioprinting by piston extrusion 3D printing, and rheological optimization of ceramic suspensions/resins for 3D printing of medical implants by a 3D printer for high strength ceramics.
Preparation of optimized materials and characterization of their functionality (controlled drug release (focus in biological drugs), localized drug delivery, co-delivery of drugs and accurate dosing of drugs in 3D printed structure, cell guiding (e.g., nerve or muscle cells) properties for 3D printed tissue engineering scaffolds; mechanical and print accuracy characterization of 3D printed high strength ceramics for dental, orthopedics or engineering applications; assessment of feasibility of FEM simulations for ceramic materials.
Objective: Design and development of 3D printed biodegradable metal screws and other implants for orthopaedic applications by a metal 3D printer(s) (to be purchased or leased), and stabilization of said metal screws by functional coatings.
Design guidelines for structural analysis of 3D printed metal objects covering: (i) assessment of tensile properties (e.g. yield curve) of the end products, and (ii) their spatial distortions relative to the initial design specification. These results can be used for accurately calibrating the material models used in simulation of 3D printing and improving the design process.
Lead researcher: Pekka Törnqvist
Functionalized or reinforced composites of polymers and fibers or other additives
Objective: design and develop polymers functionalized/reinforced by fibers or other fillers and additives for dental, orthopedic and technical applications by screw extrusion 3D printing with adjustable nozzle or by a 3D printer for long-fiber/continuous fiber reinforcement specified during MMAM.
Lead researcher: Pasi Alander
Objective: design and development of new blends, composites or hybrids of thermoplasts (recycled, virgin) and biopolymers (e.g., polymers of fractions originating from biomasses as such or as additives in other polymer structures) for medical and technical applications by screw extrusion, piston extrusion or filament extrusion (FDM) 3D printing.
Lead researcher: Liisa Lehtinen