Abstract
Abstract Diamond-segmented circular sawblades are the widely used machining tools in stone processing plants for slab/tile production. High noise emission of the conventional type sawblades is a serious environmental issue. Hence, vibration-damped sandwich-core sawblades are becoming more popular in the stone processing plants than they were. Apart from reduced noise, these tools are claimed by the manufacturers to have the merits of lower power consumption and longer service life. However, quantitative information is seldomly provided by the manufacturers regarding the details of their operational conditions, characteristics of the sawn stone material, and the extent of the benefit gained. In this study, a sandwich-core sawblade and a conventional sawblade were evaluated in terms of active power consumption, force ratio, specific wear rate, and noise emission. Experimental results show that the active power consumption and specific wear rate of the sandwich-core blade was less than that of the conventional one, indicating benefits of 14% and 9.8%, respectively. Higher force ratios attained by the sandwich-core blade indicated that smoother cuts could be achieved by using these tools. The average sound level of the sandwich-core blade was approximately 10 dB lower than that of the conventional one.
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