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Technology has always been one of the areas our company has invested in and trusted the most. That’s why we continually upgrade our machinery and employ a diverse range of production techniques, enabling us to handle even the most complex tasks with our forming and machining technologies.
With this in mind, we have acquired a new press, which joins our already extensive machine fleet.
SACMA SP 570 WF
This special version of the SP570 features an induction heating system allowing the metal wire to be heated and machined at temperatures from 200°C to a maximum of 900°C.
Raising the machining temperature of the wire significantly increases the material’s deformability, but without exceeding the recrystallisation temperature limit. The risk of grain growth is thus prevented, and alterations to the material’s structure avoided. This process is known as “warm forming” [read our article for more information]. It sits in between cold forming and hot forming, where temperatures can exceed 1000°C.
The machine’s internal induction system allows localised heating of the wire section that will undergo deformation during the forming process. The temperature of the wire section subjected to induction is automatically and accurately monitored by special optical pyrometers, controlled by a thermal regulation unit.
The aim of warm forming is to allow the forming of low-ductility materials that are not suitable for cold forming, such as stainless steel or titanium.
Compared to hot forming, warm forming requires a less energy-intensive induction and cooling system, thus reducing energy costs while also maintaining more precise tolerances due to the reduced deformations and thermal shrinkage at lower temperatures.
It is very similar to cold forming in terms of tolerances and process repeatability, but is able to exceed standard deformation limits without significantly increasing operating costs.
The aim is to expand the range of services and opportunities.
