WORLD INTELLECTUAL PROPERTY DAY 2025

How can one avoid damage to thin plates (300 to 400 microns) when cutting them? 

It is proposed to use the principles of periodic action and asymmetry to improve cutter design. To this end, the geometric centers of multiple cutting disks are positioned at regular intervals on a circle whose radius is equal to the eccentric radius. As a result, cutting disks touch the plate sequentially, reducing the cutting force and improving conditions for cutting removal. The end deformation of the cutting disks is reduced, since they do not contact the brittle material continuously. This minimizes chipping and reduces the cut width.

 How can one dampen vibrations (chattering of the cutting tool) during metal lathe operations?

It is proposed to use the principles of mechanical vibrations and periodic action to make the operation easier. One can periodically stop the cutting process, for a short time, at a predetermined frequency. The cutter is simply withdrawn after a number of revolutions of the work piece. The number depends on the vibration resistance (stiffness, rotation speed and natural damping) of the lathe and the material being worked on. This method prevents chip built-up at the cutter edge and seizing of the cutter. 

 How can surface finish be improved when sawing fibrous materials, such as wood?

It is proposed to use the principles of transition to another dimension and local quality to improve saw cutting quality. One can employ a multi-tier tooth arrangement. To this end, the saw is made with interleaved teeth of different heights. (The shorter teeth are set wider than the longer ones). The longer teeth do the primary wood cutting, while the shorter ones clean the surface. Roughness decreases since the short teeth cut away a very small layer, barely marring the surface. Cutting speed is improved as well.