Who are we
Our research group has solid knowledge of the formability and joining methods of demanding sheet metal products, as well as the mechanical properties of materials, especially metals. We also have diverse expertise in adhesion and abrasion resistance of coatings and the friction properties of sheet materials. AM materials and methods are also in our focus.
What do we do
Our main research competence is applied research on mechanical properties of materials, especially metals, and formability and joining methods. In addition, powder materials of the additive manufacturing (AM) methods and methods themselves are in the core of our research competence. The research on sheet metal forming concentrates on formability of materials in different forming processes, as well as parameters affected to the processes such as friction and abrasion for example. Adhesion of the coatings is also our expertise. We have the infrastructure for research carried out in laboratory. We are committed to working with our industrial customers and partners in long lasting R&D projects, but also in more fundamental research projects. There are different possibilities to carry out the testing, either by following standardized testing protocols or by developing new ways of testing with our other specialized teams. We have good networks and long experience in solving both technical and scientific problems.
We aim to improve our laboratory capabilities towards advanced mechanical testing and materials characterization methods that would serve the needs of the research and teaching in Häme University of Applied Sciences as well as the R&D need of the collaborating industry.
Our vision is to enhance the sustainability of industrial materials technology and manufacturing, as well as the quality of parts and products. We participate in research aiming towards bio-based coatings and AM materials and methods and help ensure the quality and performance of materials and parts. This way, we want to be involved in building a more resource wise and sustainable society.
Who do we work with
Our research group collaborates with both national and international operators. Our main partners are national large and SME companies in various industries, as well as academic partners such as universities. We operate strongly in an application-oriented way regarding the properties and use of materials, especially metals and polymers.
On national level, we actively participate in activities of the Finnish deep drawing association, FinDDRG ry and Sheet Metal Products branch group by Technology Industries of Finland.
Our laboratories in Visamäki and Riihimäki campuses are equipped with various devices required to determine the mechanical properties of materials, such as tensile testing machines of different force cells and Charpy impact device for metals and various hardness testers. With the help of tools connected to tensile testing machines, we can study, in addition to the basic strength properties of materials, various friction, bending load and adhesion properties, among other things. We can do some of these in temperature chamber where the temperature can be changed between -80 °C + 250 °C. All tensile test machines can be equipped with custom-made tools for applied studies.
We can study the formability of metals with various tools made to the hydraulic press and with the Erichsen machine. We have an oven, for example, for hot stamping that can achieve high temperatures.
Our automated strain analysis systems (GOM/Aramis, GOM Argus and ASAME) as well as our friction testing equipment (BUT, Bending Under Tension) offer unique technology for the industry and research projects requirements. With these systems it is easy to study strains e.g. during forming processes, as well as strains in formed sheet steel products and evaluate the success of the forming process. They are also used for determining forming limit curves (FLC).
We carry out material joining research in our group mainly in connection with sheet metal joining. We have equipment for mechanical and resistance welding joints (e.g. spot welding).
We have capabilities for preparation of polished and etched cross-sections for optical microscopy of microstructures.