DEM modeling of a monowire cutting system
- PDF / 2,649,067 Bytes
- 11 Pages / 595.276 x 790.866 pts Page_size
- 91 Downloads / 179 Views
ORIGINAL PAPER
DEM modeling of a monowire cutting system R. Hasanpour 1,2 & Y. Ozcelik 1 & E. Yilmazkaya 1 & B. Sohrabian 1
Received: 10 November 2015 / Accepted: 5 October 2016 # Saudi Society for Geosciences 2016
Abstract Monowire block cutting machines can be used for natural stone block squaring and slab cutting operations. The plants where the cutting operations are performed demand high product quality with minimum operational costs. The major parameters affecting the economy of the operation are the energy consumed and the wear induced on the diamond beads during the cutting operation. An efficient cutting operation can only be maintained by selecting proper cutting parameters. Therefore, cutting parameters should be clearly understood. Experimental studies and numerical modeling methods are significant in terms of identifying the energy consumption occurring during natural stone cutting with monowire. Experimental studies and numerical modeling using discrete element method were performed on Afyon White Marble. Experimental studies have been performed by using a specially designed, fully automatic monowire cutting machine, and numerical analyses were carried out by commercially available software called three-dimensional particle flow code (PFC3D). A discrete element model for the cutting operation was developed, and various numerical models were performed for different peripheral speeds and cutting speeds, while, at the same time, the actual cutting operations were being carried out in the laboratory. Finally, the data obtained from the experimental works were compared with the data from numerical modeling. A comparison
* R. Hasanpour [email protected]
1
Department of Mining Engineering, Hacettepe University, Beytepe, 06800 Ankara, Turkey
2
Institute for Tunnelling and Construction Management, Ruhr-University Bochum, Universitätsstraße 150, 44801 Bochum, Germany
indicates that the frictional energy values obtained by means of numerical modeling are in good agreement with the results of the laboratory measurements. This study clearly put forward the influences of effective parameters on monowire cutting operations in natural stone industry. Furthermore, it filled an important space in the literature about the use of monowire block squaring machines. Keywords Natural stone processing . Monowire . Numerical modeling . PFC3D . Frictional energy
Introduction A monowire cutting machine is a kind of stone machining equipment with flexible cutters. It can be used for natural stone block squaring operations and slab cutting operations from natural stone blocks. The machining quality, efficiency, and degree of convenience of the monowire have been greatly improved so as to increase the using rate of special-shaped stone (Zhang & Wang 2004). The high cost of diamond wires used in hard rock cutting has always been restricting the wide application of monowire. Several studies have been carried out related to cutting with monowire to investigate the effect of the working parameters including peripheral sp
Data Loading...
