Tangential cut head
Ronchini Massimo Srl offers technological solutions for the creation of products for packaging, visual communication, construction and industry, working with expanded and compact plastic materials, composite materials, cardboard and more.
Tangential Cut Head technology
The basic operation is not far from milling, however the peculiarity of this technology is that the blade must always be oriented tangentially to the path. The right tangential orientation is guaranteed by a motor driven by the numerical control that manages the rotation of the blade.
As for the cutting angle, the smaller it is, the easier the cut will be, but this will lead to an increase in the “overcut”, the defect due to the distance between the center of rotation of the blade and the point where the cutting edge crosses the surface of the material.
Tangential Cut Head – Materials
Mainly this type of technology works on fabrics, felts, rubbers, needlepunches, doormats, plastics in rolls, cardboards and foams.
Some materials, usually the thinnest, only require a fixed blade tangential cut. The blade pressure is guaranteed by a pneumatic piston with manual calibration by means of a pressure switch.
When the materials to be cut have a high thickness and are particularly hard, the head can be used in its oscillating version. In this case, in addition to rotating following the path, the blade will swing at a high frequency on its axis.
Characteristics of the composition
The blades are normally made of solid tungsten carbide or hard metal (HM), this for maximum duration and cutting precision. As for flat blades, the most important parameters are “the wedge angle” and “the cutting angle”. The smaller the wedge angle, the better it is cut with the blade, to the detriment of the duration and delicacy of the blade itself.