Granite sawing by diamond wire: from Madrigali “bicycle” to modern multi-wires

CAREDDU, NICOLA;Cai O.

2014-01-01

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Abstract

This paper gives an overview of the current state of the art of hard stone slabbing technology and its development; it points out the main features of block sawing methods, traditional and more advanced technology, production cost and performance. This study is mainly focused on diamond wire technology, which was first introduced in the late 1970s in Carrara based quarries, and its improvement up until the use of more modern multi-wires which have represented the decline of multi-blade gangsaws for granite. Multi-blade block saw (fitted with circular diamond-blades) is also examined. The difference between multi-wires and older technologies is discussed taking into consideration their both economic and environmental issues. Finally, a list of possible future improvements is given.