The countless studies and vast experience in the field of sintered materials has enabled us to be the first to patent and market the "sintered diamond wire". The "Know How" gained above all in the field of spherical catalyst for the production of ammonia, with no fewer than six patents registered world-wide, has made it possible to create a diamond tool capable of offering the modern firms operating in the stone sector, those performances of speeds and yields that several years ago were possible only in workshop conditions with circular saws and blades. The evolution of the first diamond beads has been influenced, afterwards, by changes in market requirements and by technological innovations in the fields of machinery and diamond abrasives. The flexibility of our bead sintering process makes it possible to obtain a large range of products, each of which devised and designed for a particular application.

The key factor behind the performances achieved is the "made to measure" proprieties of the beads in direct and aimed relation to the particular application.

A bead can be briefly described in structural terms as consisting of a steel base (support) coated with diamond-impregnated metal bond. In researching the optimal use of such tool we have taken as constant point of reference the necessity to obtain a bonding agent specifically suited to the abrasive properties of the materials to be processed and the use of diamond crystals, which are capable of withstanding the harsh working conditions typically encountered. The metal bonds are composed of a complex of elements which make them "unique" in the sector and are created in such a way to be worn at a rate that ensures, always, both the optimum projection of diamond at all times and the firmest possible anchorage. The complexity of these bonds is due to the fact that all the sintered beads are produced by means of a "controlled atmosphere" sintering process. In these conditions we eliminated the risks of oxidization of the diamond for the absence of oxygen from the outside environment and of "graphitization" of the diamond by using metal powders that present low solubility in relation to the carbon element.

In particular, steps have been taken to eliminate any risk of damage to the physical and [chemical properties of the diamonds crystals by setting the machine parameters at very low temperature and pressure values. Working on the above data and respecting in all the phases of the production cycle these conditions, the great characteristics of strength of the diamond used for the beads are respected and paradoxically the surface defects, inherent in the process of synthesis diamond crystals, have positive repercussions upon tool's effectiveness, causing in this way irregular micro-fracturing phenomena of the that ensures the constant presence of cutting grains. These characteristics of ""controlled disintegration" of the diamond combined to the particularity of the bonds (resistant to wear and optimal crystal retention) permit so an efficient utilization of the product while the powerful "self-sharpening" action ensures a higher potential feeding speed and final yield of the wire. The experience and research have made it possible to verify and adopt a wide range of different assemblages.

The traditional assemblage with fixed separating springs, spacers, annealed locks is modified case by case according to the type of material, machine and utilization and, the key variable, is being the number of beads per linear meter, which is fundamental for cutting speed and final yield of the wire.

The plastic-coated assemblage and application of new polymers guarantee to the user a cycle of work always more and more precise and the high degree of reliability of the product signs an important event in terms of economic and safety.

The entire range of the different possibilities of assembly permit a very wide and accurate choice in any occasion

NUOVA FA.U.DI. with it's experience, technical knowledge of the materials, of the machines used, and of the different methods of work, is able to advise the best choices.