Wear characteristics of diamond segments on multi-blade combination saw with different diameters in granite sawing

Zhou, Jingguo; Zhang, Jinsheng; Zhou, Haoren; Dong, Peng; Wang, Kaida

doi:10.1016/j.ijrmhm.2021.105517

Cited by 13 publications

(6 citation statements)

References 33 publications

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“…In this work, the diamond particle diameter is approximately the chip width b, where, B g =B/b. The total number of the diamond particles of the rear segment is de ned as C g η, C g is the total number of diamond particles on the rear segment surface, and η is the proportion of the effective cutting edge of diamond particles, usually η = 2/3 [35]. Thus, the normal force F tg and the tangential force F ng of a segment are expressed as $$\left\{ \begin{gathered} {F_{tg}}=1\rho {B_g}{f_{t1}}+{C_{\text{g}}}\eta {f_{ti}} \h ll \\ {F_{ng}}=1\rho {B_g}{f_{n1}}+{C_{\text{g}}}\eta {f_{ni}} \h ll \\ \end{gathered} \right.$$ 13…”

Section: Sawing Force Analysismentioning

confidence: 99%

“…Aydin et.al [19] analyzed the wear performance of saw blades during granite processing and established wear estimation models. Zhou et.al [20] compared and analyzed the diamond wear characteristics of combination circular saw blades with different diameters during the granite process and established a combined saw load model with a diameter as the variable. Xu et.al [21,22] also analyzed the load and wear characteristics of high-speed grinding ceramic materials with brazed diamond wheels.…”

Section: Introductionmentioning

confidence: 99%

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

Kang

Zhang

Duan

et al. 2022

Int J Adv Manuf Technol

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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.

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Section: Sawing Force Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

Kang

Zhang

Duan

et al. 2022

Int J Adv Manuf Technol

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“…Today, diamond tools are employed in almost every process of the transformation activity, and therefore, these developments have also led to an increase in research dealing with optimum tool design. For example, there have been studies dedicated to the design of brazed diamond grids: from the earlier work of Sung [ 1 ] to recent review work by Long et al [ 2 ]; models and theoretical analyses of stone sawing with diamonds [ 3 , 4 , 5 , 6 , 7 ], with an emphasis on diamond impregnated segments [ 7 , 8 , 9 ]; industry-oriented evaluation of diamond tools [ 10 , 11 , 12 ], including their long-term performance [ 13 ]; studies on the diamond retention capacity of metal bond matrices [ 14 ]; and optimization of the sintering process of the binding phase and the diamond composite materials [ 15 , 16 , 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Wear Behaviour in Metallic Binders Employed in Diamond Tools for Cutting Stone

et al. 2021

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A type of disc-on-plate test methodology was used to determine the wear behavior of metallic binders employed in the manufacturing of diamond impregnated tools. The disc consists of a special circular wheel that allows the binder materials alone (i.e., without diamond, but sintered under conditions identical to those of the complete tool) to be tested against a plate of stone material under pre-determined testing conditions. The testing conditions are intended to be equivalent to those used in the industrial processes. Using plates of five types of granite and one type of marble, this work comprises wear tests of 15 different types of metallic binders and two sintering modes conducted under, at least, three different values of contact-force. The analysis of the results demonstrated that the wear of the binders can be related to their mechanical properties through an empirical expression. The larger the difference between the characteristics of the tribological pair (binder versus stone), the higher is the correlation between the experimental wear data and the values given by the empirical expression. The relationships presented in this work allow predicting the wear behavior of the binder, and therefore may help in the design process of diamond tools. There was a clear difference between the wear behavior of metallic binders when they were employed against the two main classes of stone under analysis (marble and granite).

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“…The results indicated that the diamond particles must maintain a proper shedding rate to keep selfsharpening, and the matrix must be worn at a proper rate as well. Wear characteristics of diamond with a circular saw during the granite sawing and a load model of combination saw were studied by Zhou et al [18]. The results showed that uneven load is the main factor for the inconsistent wear of combined segments.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation on Granite Cutting by Means of Diamond Frame Saw

Zhang

et al. 2021

Preprint

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A great quantity of granite sawing experiments was carried out to explore the cutting performance offrame sawing machine with the horizontal reciprocating cutting mode.A model of average thickness of cutting chip was established, and characteristics of cutting forces were analyzed. The mechanism of wear was revealed by analyzing the width of the saw kerf and the wear morphology of the diamond segments. The results showed that the wear resistance and the cutting forces ncrease as the feed speed. The cutting forces change abruptly at the reversing point during granite cutting. At the same time, the proportion of macro-fractured and pulled-out particles and the mean wear rate of segments increase with the feed speed, and the mean protrusion height of the grits is less than 100 μm. The width of the saw kerf is gradually reduced as the sawing progresses, forming an inverted cone with a large upper side and a small lower side. Besides, the studies found that the wear of the segments remains consistent in two directions. The prominent phenomenon of the diamond particles on the side surface is more obvious as the feed speed increases.The research can provide certain data support for granite cutting, and lay the foundation for the subsequent optimization of the structure and equipment.

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Wear characteristics of diamond segments on multi-blade combination saw with different diameters in granite sawing

Cited by 13 publications

References 33 publications

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

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

Evaluation of Wear Behaviour in Metallic Binders Employed in Diamond Tools for Cutting Stone

Experimental Investigation on Granite Cutting by Means of Diamond Frame Saw

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