An investigation on the effect of diamond concentration and matrix material composition in the circular sawing process of granites

Abstract

In the process of natural stone cutting, segmented circular diamond saw blades are widely used in the sawing process of granites. Generally, copper, cobalt, or a combination of these is used as the matrix material. The diamond particle used in segments is added to the matrix material in certain rates and sizes. In this article, the effect of tungsten, cobalt, copper, and tin elements, which are added to the matrix material, on the cutting performance was studied. In addition, in order to study the effect of diamond concentration, the segments with different diamond concentration were manufactured. Using these segments, cutting experiments for granite, which are known as natural hard stones, are conducted. In the cutting experiments, peripheral speed of the cutting disc, cutting speed, and depth cut were taken as constant. After the experiments, cutting forces, power consumption, and specific energy changes for each segment were determined. On the other hand, the status of damage and wear for the surfaces of each segment during the cutting process was evaluated in terms of segment performances. According to the results, an increase in diamond concentration results in a lower cutting force and power consumption and also causes a lower specific wear of the segment.

Effects of sintering temperature and addition of Fe and B4C on hardness and wear resistance of diamond reinforced metal matrix composites

“…Because Sn metal has lower melting point and melts in the sintering process and fills the pores in the composite. Ucun et al [14] investigated the effect of the matrix composition of the composite material in the sawing process. The highest hardness value of the composite was obtained for the composition (95 wt % (Co-W) + 5 wt % (Cu/Sn-Fe), 20 % diamond concentration).…”

“…Specific wear rate = d V Δ , where d is the distance and for each specimen it is kept constant = 3.6 km. 100 wt % Co + 5 % diamond concentration 93 [3] 95 wt % Co + 5 wt % Sn + 5 % diamond concentration 103 [3] 95 wt % (Co-W) + 5 wt % (Cu/Sn-Fe), 20 % diamond concentration 98 [14] 80 wt % (Co-W) + 20 wt % (Cu/Sn-Fe), 20 % diamond concentration 86 [14] Note. As a concentration of 100 % diamond grits was designated as 4.4 cts/cm 3 , the 20 % diamond concentration is 0.88 cts/cm 3 and 5 % is 0.22 cts/cm 3 .…”

“…Diamond has been used as abrasive powder due to its extreme hardness [10][11][12]. Diamond concentration and quality (e.g., grain size, shape, and strength) affect mechanical properties of diamond tools [13][14][15]. Beside of diamond, some metal carbide has been used as a metal matrix wear rate controller in diamond tools.…”

Determination of Cutting Force and Specific Energy the Processability of Marbles with Computer Numerical Controlled (CNC) Machine

“…Mermerlerin kesilebilirliği ele alındığında; dairesel testerelerde soketlerin modellenmesi kesme kuvvetlerinin saptanması, özgül kesme enerji konularında aşağıdaki araştırmacıların çalışmalarıyla karşılaşılacaktır (Akdaş ve Yurdakul 2014; Aslantaş et al 2009;Bayram et al 2002;Bayram 2013;Büyüksağiş vd. 2003;Ersoy ve Atıcı 2004;2005;Han et al 2007;Hu et al 2006;Karakurt et al 2013;Tönshoff et al 2002;Turchetta 2009;Ucun et al 2011;2012;2013;Yilmazkaya ve Özçelik 2015;Yurdakul ve Akdaş 2012;Yu et al 2006;Xu et al 2003;Wang et al 2004). Bu çalışmalara ilave olarak; Asche etal.…”

Determination of reactional cutting forces on a circular sawblade machine by using experimental studies and numerical modelling

“…The circular sawblade stone cutting machine has been investigated by a number of researchers. The topics investigated mainly concentrate on the theory of stone sawing [1][2][3][4], wear [5][6][7], energy [8,9], forces [10][11][12][13], sawability determination [14,15], and performance analysis [16][17][18][19].…”