The project FGAkt at the Research Center

FGAkt - Development of novel shape memory actuators for use in injection moulding tools

In the BMBF-funded project, potential actuator applications in injection molding systems are identified in cooperation with several partners through the use of which they can be designed more efficiently and in order to exploit previously untapped technological potentials. To this end, the corresponding actuators will be made ‘smarter’ and more energy-efficient in order to be prepared for future production environments (Industry 4.0).

As a solution for the realization of an identified actuator, shape memory alloys (FGL) should serve as a basis. These are characterized by their high energy density and the resulting compact design. In addition, additional sensors, e.g. for condition monitoring, can be dispensed with when using FGL.

objective

The aim is to make the properties of FGL usable in injection moulding plants by developing innovative commissioning and the aim of the project. For this purpose, a prototype is developed, which is first validated under laboratory conditions. Subsequently, this should be installed in a demonstrator injection mold. Through this use, further experience and insights are to be gained and the added value created by the actuator used is to be made clear.
As a first step, the developed prototype will serve to develop new areas of application for the FGL technology in order to further advance the development and use of this technology.

approach

After identifying potential actuators, an agreement was reached with the project partners on the construction of an actuator.
This serves as a valve for the venting of injection molds. Venting is important because trapped air can prevent the mold from flowing out. After the construction of a first prototype and an optimization loop, a second final prototype is built.
Furthermore, a test bench for mechanical and electrical characterization is set up for validation. Once the prototype has been validated, it is installed in a demonstrator injection mold.

Results / Project status

The work on the part of iMSL started in July 2017 and runs over 3 years.
In the first project phase, a requirement profile for the use of an actuator on the basis of shape memory wires in injection molding systems was created in close coordination with the project partners. Based on this, an actuator concept was identified, which served as the basis for the development and construction of the first prototype.
Subsequently, the measurement results were validated and prepared, which were discussed with the project partners and presented at several conferences and trade fairs. The developed actuator mechanism was also applied for a patent.
After an optimization loop, the second prototype is currently under construction.

Recovery concept:

As a chair of the Saarland University, we always use our findings from science and research in the sense of the common good.
In this way, we strive to make the results available to as many interested parties as possible. This is done through publications in specialist journals, through the press office of the university with the resulting large press review, through presentations at specialist conferences and international trade fairs, as well as by bringing the results into teaching. As a result, these findings are passed on to a wide variety of industries and contribute to innovative solutions there.
While we treat partner-specific projects confidentially, we nevertheless strive, in close coordination with our partners, to increase Germany's innovative power through our research results. The membership of the partners in various networks creates an efficient multiplier for the transfer of results.

Duration: 01.07.2017 – 30.06.2020
Funded by: BMBF SME Network