HANNOVER MESSE 2018, 23 - 27 April
Homepage>Exhibitors & Products >Highly Precise Microcomponents

Highly Precise Microcomponents

Microcomponent Produced with a Novel Injection Molding Tool.

Karlsruher Institut für Technologie

Exhibitor details
Logo Highly Precise Microcomponents

Exhibition stand
(Main stand)

Hall 2, Stand B16

Product description

The demand for highly precise microcomponents is increasing. In medical technology, these microcomponents are needed for the construction of miniaturized diagnosis instruments. In precision mechanics, e.g. in the production of clocks or optical devices, such minute components are indispensable. The microinjection molding technology established so far requires a carrier plate, on which the components are arranged. Such a plate having the size of a business card may accommodate more than 700 components depending on their size. However, the drawback consists in the fact that the parts have to be separated from the carrier plate in a second time- and cost-consuming step. KIT scientists of the Institute of Microstructure Technology (IMT) and the Institute for Applied Materials - Material Process Technology (IAM-WPT) have developed a method, by means of which individual microcomponents can be produced directly by injection molding. For the novel injection molding tool developed by KIT, the molding mass, a hot formable plastic feedstock, is injected into the mold insert via a gate. Upon cooling and hardening of the plastic, the tool is opened a little. As a result, the microcomponent that is still attached to the gate is drawn slightly out of the mold. Then, a special unit makes the micromold insert rotate in order to remove the gate. Now, the minute component can be taken up by the removal module. For efficient and flexible production, several micromold inserts are arranged on one carrier plate. They can be exchanged rapidly and separately. The inserts are metal cylinders, in the center of which the microstructure is visible under the magnifying glass as a depression. The mold inserts produced by KIT's X-ray lithography method are characterized by high surface quality and nearly vertical side walls. Hence, they are suited excellently for the production of highly precise microcomponents. KIT scientists have built a prototype of the microinjection molding tool.

Product website

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Highly Precise Microcomponents

Microcomponent Produced with a Novel Injection Molding more

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