MECHANICAL ENGINEERING

Spark erosion involves removing material from a conducting part and eroding it to give it the desired shapes and dimensions by means of electrical discharges. In the wire sparks erosion process an unwinding metal wire, under tension, is immersed in water or in another insulating liquid (dielectric) with the part to be worked. The current transmitted forms an electric arc which gives rise to precise, programmed degradation of a section of the part. The residues created by wearing of the part are removed by the water or dielectric liquid. STEEC carries out both spark erosion and fine wire micro spark erosion operations Wires spark erosion and machining Equipped with the latest wire spark erosion technologies, STEEC is able to carry high precision cutting with wires of standard sizes whose diameter may vary from 0.15 to 0.25 mm in all types of mechanical parts.

This modern machining technology offers a host of advantages over more conventional processes. STEEC makes available to its customers its know-how in micro drilling by spark erosion. The principle of this machining process is the same as for wire spark erosion, except that the tool used for cutting is no longer a wire but an electrode shaped according to the precision machining require. The part and the tool (electrode) are not therefore in contact with each other, in fact it is an electric arc formed between the electrode and the part that will machine the latter. This is also called sparking. The part must be necessarily be conducting to be able to be machined by this method and it is prerequisite for using this method. This absence of contact between the tool and the part makes it possible to machine very hard materials such as titanium for example.

Thanks to its very-high precision maser micro-cutting STEEC is able to provide high quality services that can be applied in watchmaking. In fact this very high precision industry, which is subject to very stringent demands requiring cutting precision down to one or two microns… The company stands out from its competitor through its high degree of responsiveness in the field of micro-machining. Working with STEEC in laser micro-cutting or in micro spark erosion guarantees that you will receive you parts in time with complete peace of mind.

The nuclear sector is one which requires extreme precision as well as the ultimate discipline. This also includes machining of course. STEEC provides the players in this sector high-tech subcontracting solutions in micro-drilling or conventional micro-machining and laser micro-cutting. Major French and European companies in the nuclear sector put their trust in STEEC for the manufacture of micromechanical parts.