To increase efficiency in the EDM production of contamination-free components, bedra has developed the confreecut ONE EDM wire.

In wire EDM, it is particularly important that component surfaces are free of contamination from foreign materials after production. In conventional wire erosion, the surfaces of the cut component may show residues of copper and zinc, requiring subsequent chemical cleaning. The additional cleaning process increases throughput times and production costs enormously. In the case of component surfaces that are difficult to access, the cleaning effect is also limited or insufficient.

Currently, most machine shops specify EDM wires made of molybdenum or tungsten for such applications. However, these wires carry a high material price. In addition, the wire guides are subject to heavy wear and automatic threading can be problematic, reports bedra.

To increase efficiency in the EDM production of contamination-free components, the company is introducing the confreecut ONE EDM wire, whichbedra says stands for contamination-free and fast machining with low wire guide wear and reduced wire costs. The wire has a high-purity outer nickel coating with optimal layer thickness. Run lengths of up to 60,000 metres per spool permit significantly more autonomous production compared with the usual fabrication of molybdenum and tungsten wires.

Notably, bedra was able to prove in numerous tests that confreecut ONE reduces the copper and zinc contamination, with zinc reduced to almost zero during processing with 2-4 trim cuts. In the process, bedra examined the components for these residues using highly sensitive analysis technology. The companyis happy to advise potential customers on specific erosion applications.
For further information www.bedra.com