@article{Bellopede_Marini_Zichella_Tori_2015, title={Diamond wire cutting technology and workability of natural stones: validation of a new classification method (EASE R3)}, volume={3}, url={https://icscm.ub.rub.de/index.php/ICSCM/article/view/394}, DOI={10.13154/icscm.3.2015.120-128}, abstractNote={In the diamond wire stone cutting process the objective is to remove a chip of material or a layer of<br />uniform thickness from the entire length of the cut. The aim of this study is to correlate the cutting<br />performance to the characteristics of the natural stone and subsequently to propose a method of<br />classification strictly connected to stone workability.<br />Hardness and micro-hardness tests are currently considered important methods for acquiring<br />useful information about the workability of natural stones, but such gathered data alone do not give<br />enough information to establish a satisfying classification. The concept of workability and stone<br />machining has been, for the past thirty years, one of the main area of investigation in national and<br />international researches. This study endorses a method for the prediction of stone-cutting tools<br />interaction (mainly diamond wires) combining the micro-hardness and the UPV measurements,<br />that better represent the mechanical, physical and petrographical stone properties.<br />This paper studies eight different stones classified according to an “easy-to-cut” scale based on the<br />historical company know-how (HIC - Historical Industrial Classification). This classification is<br />based upon experience and not on explicit or really scientifically quantified parameters,<br />nonetheless, it describes the stones workability completely.<br />In previous works, however, criteria based on quantifiable parameters (SSC - Scientific Stone<br />Classification) have been pursued and this led to a scientific correlation with the industrial<br />classification. For each stone the following investigation techniques were performed: petrographic<br />analysis, micro-hardness, Schmidt rebound, Ultrasound Pulse Velocity (UPV). Moreover UPV<br />measures in indirect and direct method have been executed on stone blocks in the cutting plant<br />and compared with those performed on slabs. The results of all the performed tests were analyzed<br />and good correlations with the industrial classification were found.<br />Introduction}, journal={International Conference on Stone and Concrete Machining (ICSCM)}, author={Bellopede, R. and Marini, P. and Zichella, L. and Tori, A.}, year={2015}, month={Nov.}, pages={120–128} }