Vollmer offers 2 in 1 solution

Cutting tool manufacturers have always had the inconvenience of producing solid carbide and PCD cutting tools on two separate machines. Now, however, Vollmer has eradicated this issue with its flexible new VHybrid 260 solution that can grind carbide tools and erode PCD tools on a single platform.

Importantly, the VHybrid 260 allows users to switch between grinding and erosion processes in next to no time. Utilising Vollmer’s multi-layered machining technology, the vertical alignment of two spindles is a novel arrangement that allows the grinding and electrode wheelsets to pivot the C axis precisely, ensuring operators always achieve optimal results. If the tool requires both grinding and erosion, the VHybrid 260 can create one complete and efficient machining process for all tool production requirements.

The multi-layered spindle configuration allows the grinding of carbide tools with diameters of up to 150 mm on the top spindle, whereas the bottom spindle can accommodate both grinding and erosion. This design enables the machining of carbide or PCD tools up to a diameter of 150 mm thanks to the high-performance and finely tuned Vpulse EDM erosion generator. The generator delivers surface finishes to roughness of 0.1 μRa, while electrode calibration and wear control combines with a dressing device to provide fully automated processing.

Vollmer says that quality is built into every facet of the VHybrid 260, demonstrated by the company’s ‘wall concept’, which provides high rigidity and vibration damping through its concrete polymer foundation. This is complemented by spindle and motor cooling technology that creates thermal stability, while the vertical spindle configuration eradicates issues related to fixing and floating bearings.

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