Modeling for prediction of sawing force based on the maximum undeformed chip distribution in the granite sawing

Abstract

Sawing by circular saw blades is predominant in the mechanized treatment of natural stone. The predictive sawing force is crucial for optimizing, controlling, and monitoring the sawing process. In this work, a novel model for predicting sawing force, which is based on the distribution of the undeformed chip thickness at the sawing contact arc, was proposed. Based on the analysis of the chip geometry of the circular saw blade, the segment surface was divided into the front end and rear end according to the contact pattern between the segment and granite, and the models of the maximum undeformed chip thickness of diamond particles on the front end and rear end were established. Results suggest that the new proposed force model fully considered the distribution of undeformed chips compared with the current model. And the novel model has higher prediction accuracy, the mean maximum absolute error rate was within 3.77%, and the maximum absolute error rate was within 7.83%. Through theoretical analysis, the ratio (is 1.67) of the maximum thickness of the undeformed chips of the front segment and rear segment can fully explain the wear nonuniformity of the segment. The proposed model is of great signi cance to the optimization of saw blade structure and process parameters.

Experimental Investigation on Diamond Band Saw Processing of Resin Mineral Composites

“…The cutoff frequency is set to 5 Hz. Then, the force signal is smoothed by the neighbor averaging method and the number of window points is set to 500 [18]. The processed force signals in three directions are shown in Figure 6.…”

Experimental investigation of cutting performance for circular saw blade body modification by resin layers toward green manufacturing

“…In general, the e ciency of saw blades is in uenced by the workpiece characteristics, machining parameters, blade body, sawtooth, and active machine power [7,8]. A considerable amount of studies have been made in the eld of circular saw blades, which can be divided into the following categories: (1) analysis of energy consumption and cutting forces [9,10], (2) monitoring of sawtooth wear or workpiece surface integrity [11,12], (3) analysis of noise reduction [13,14], and (4) dynamic analysis [3,12,15]. A careful study of the aforementioned literature shows that these studies are mainly focused on conventional saw blades.…”

Investigation of composite coating induces noise reduction for circular saw blade

“…With the increasingly erce competition in the global manufacturing industry in recent years, it becomes urgent to further improve the work environment and production e ciency. Circular saw blades (CSBs) with high e ciency and high quality are widely used in wood and other material processing (Nasir and Cool 2020, Kang et al 2022). However, CSB noise has been an inevitable and challenging issue, which affects the user's health and the work-piece surface quality directly or indirectly (Cho and Mote 1979, Vahid et al 2020, Zhao et al 2015.…”