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This project has received funding from the European Union’s Seventh Framework Programme for research, technological development and demonstration under grant agreement no 608843.

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Open Innovation Portal

The 4M2020 Open Innovation Portal has been set up to assist the Micro and Nano Manufacturing Community to develop a pro-active, collaborative environment. The portal can be used to support the development of three types of collaboration. We invite you to submit information in the following categories for organisations that are: • Developing state-of-the art products and services and are providing their expertise to external organisations (Product and Services Offering) • Looking for specific expertise and capability from other organisations (Product and Services Sought) • Wishing to collaborate in new projects and are looking for potential partners (Partner Search)
  1. Zeidler, H
  2. Production & Manufacturing
  3. Wednesday, February 17 2016, 04:38 PM
  4.  Subscribe via email

In micro injection moulding highly precise cavities are needed to fulfil the requirements in precision and at the same time offer the possibility for easy demoulding. Pulsed Electrochemical Machining (PECM) represents a potential technology for manufacturing mould cavities, because the machined geometries can be equipped with a certain draft angle. In this study the influence of three different electrode concepts on the shape of the draft angle is analysed. The first electrode concept is a non-insulated electrode. As the removal process depends on the distribution of the electric current density, lateral widening increases during the sinking process if a non-insulated electrode is applied. This effect can be reduced by a local insulation of the electrode on its side flanks or by reducing the electrode's cross-sectional diameter by help of an undercut. In order to investigate the influence of these electrode concepts on the resulting geometry, multiphysics simulations of the PECM process were performed. For that purpose a model was created. The machining process was simulated for a processing time of 2400 s. The resulting electric current densities, the removal geometries and the formed radii were analysed and compared to each other.

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