The concept of workability and stone machining has been, for the past thirty years, one of the main area of investigation in national and international researches. This study endorses a method for the prediction of stone-cutting tools interaction (mainly diamond wires) combining the micro-hardness and the UPV measurements, that better represent the mechanical, physical and petrographical stone properties. This paper studies eight different stones classified according to an “easy-to-cut” scale based on the historical company know-how (HIC - Historical Industrial Classification). The classification is based upon experience and not on explicit or really scientifically quantified parameters, nonetheless, it describes the stones workability completely. In previous works, however, criteria based on quantifiable parameters (SSC - Scientific Stone Classification) have been pursued and this led to a scientific correlation with the industrial classification. For each stone the following investigation techniques were performed: petrographic analysis, micro-hardness, Schmidt rebound, Ultrasonic Pulse Velocity (UPV). Moreover UPV measures in indirect and direct method have been executed on stone blocks in the cutting plant and compared with those performed on slabs. The results of all the performed tests were analyzed and good correlations with the industrial classification were found.

Diamon Wire Cutting Technology and Workability of Natural Stones: Validation of a New Classification Method (EASE R3) / Bellopede, Rossana; Marini, Paola; Zichella, Lorena; Tori, A.. - ELETTRONICO. - unico:(2015), pp. 120-128. ((Intervento presentato al convegno ICSCM15 tenutosi a Bochum nel 2-3 Novembre 2015.

Diamon Wire Cutting Technology and Workability of Natural Stones: Validation of a New Classification Method (EASE R3)

BELLOPEDE, ROSSANA;MARINI, PAOLA;ZICHELLA, LORENA;
2015

Abstract

The concept of workability and stone machining has been, for the past thirty years, one of the main area of investigation in national and international researches. This study endorses a method for the prediction of stone-cutting tools interaction (mainly diamond wires) combining the micro-hardness and the UPV measurements, that better represent the mechanical, physical and petrographical stone properties. This paper studies eight different stones classified according to an “easy-to-cut” scale based on the historical company know-how (HIC - Historical Industrial Classification). The classification is based upon experience and not on explicit or really scientifically quantified parameters, nonetheless, it describes the stones workability completely. In previous works, however, criteria based on quantifiable parameters (SSC - Scientific Stone Classification) have been pursued and this led to a scientific correlation with the industrial classification. For each stone the following investigation techniques were performed: petrographic analysis, micro-hardness, Schmidt rebound, Ultrasonic Pulse Velocity (UPV). Moreover UPV measures in indirect and direct method have been executed on stone blocks in the cutting plant and compared with those performed on slabs. The results of all the performed tests were analyzed and good correlations with the industrial classification were found.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11583/2624279
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