ECAP / New-ECAP
Period: 2014-2016 and 2018-2020
Aim: In the two research projects ECAP and New-ECAP, which were carried out in cooperation with the Austrian Institute of Technology (AIT) and funded by the Forschungs Förderungs Gesellschaft (FFG), the aim was to develop tools for the production of high-strength materials. In the process, semi-finished products (bar stock) were produced by solid forming using the ECAP (Equal Channel Angular Pressing) method. Due to the high forming degrees of beyond 2 (200%), a very fine microstructure of the materials and thus a high strength is achieved as a result of the forming.
Well-known titanium alloys such as Ti6Al4V, which are used in aircraft construction and plant engineering but also in medical technology, are used in the same way as copper alloys, which are used in the electrical industry.
Bioresorbable magnesium alloys, which are under development for implants in medical technology, were a particular focus in the New-ECAP project completed in 2020, which used a tool with two forming edges (double-ECAP).
Result: Adaptation of the channel geometry in the ECAP process to achieve straight billets and thus be able to produce homogeneous ECAP billets by multiple pressing. Optimization of the forming edge in the outlet of the double ECAP die to reduce the pressing forces in order to be able to process not only aluminum and magnesium alloys but also high-strength titanium alloys in the double ECAP process.