ONA will be at EMO exhibiting four state-of-the-art EDM machines (Hall 15 - stand C30)

We are glad to inform you that ONA ELECTROEROSION will be attending to the EMO exhibition, considered the largest and most important international trade show dedicated to machine tools and manufacturing technologies. This year the EMO will be hosted in Hannover (Germany) from 19 - 24 September. ONA will exhibit its most advanced solutions of both die sinking and wire cutting electric discharge machines, highlighting as the main new exhibit, one ONA AF Modular wire EDM machine with a cutting capacity of up to 800 mm in height.

It should be noted that the new development from ONA is not a simple “column up”, but offers a technological solution for industrialising the wire EDM process in very thick applications. It combines a high performance stable cut in totally submerged mode along the 800 mm of the Z-axis travel, with the option of automatic threading with any thread type up to the maximum height.

The success of the new technological development is largely due to ONA’s participation in the integrated research project, IMPELER, financed by the Ministry of Science and Innovation in Spain (CDTI) to the sum of 7 million Euros. The IMPELER project started in January 2010 and is due to end in December 2012. Five companies, specialised in the large scale machine-tool sector, are working in collaboration with four research centres on the project that began in January 2010 and is due to end in December 2012.

ONA’s main specific technical objectives in the project are based on the increase of production capacity and the improvement of precision in large machines.

As a consequence of the redesign of the generator, it has been possible to transfer the high-speed cutting standard to large machines. All the ONA AF MODULAR models include the high power ONA EASYCUT digital generator, designed and sized to reach the highest possible EDM cutting speeds (450 mm2/minute with Ø 0.33 mm wire and 370 mm2/min with Ø 0.25 mm wire), providing 100% electrolytic corrosion free cuts and without detriment to cutting speed.

In collaboration with the Tekniker (IK4) technological centre, the latest technologies in mechanical design and volumetric error measurement have been incorporated in order to improve dynamic behaviour and the precision of this type of machine. As a consequence of the results obtained in the IMPELER project, the numeric controls ONA-W64 and ONA-S64, used in ONA's wire and die-sinking EDM machines, now include the volumetric compensation feature.