Dry-Cutting Concrete Study of Diamond Saw Blade with Different Segment Width

2006 ◽  
Vol 532-533 ◽  
pp. 321-324 ◽  
Author(s):  
Shan Shan Hu ◽  
Cheng Yong Wang ◽  
Bang Dao Chen ◽  
Ying Ning Hu

Three kind of diamond circular saw blade with different structure parameters are designed in this paper. Adopted single-factor test, sawing force and vibration are measured by cutting several kinds of strength concrete in different cutting parameters. The analysis to characters of sawing force and vibration helps to find out optimum structure of diamond saw blade with different segment width, more rational sawing parameter and its adaptability to workpiece material.

2008 ◽  
Vol 375-376 ◽  
pp. 369-374 ◽  
Author(s):  
Ying Ning Hu ◽  
Cheng Yong Wang ◽  
Shan Shan Hu ◽  
Bang Dao Chen ◽  
Chang Xiong Chen

By FEM module analysis and temperature distribution analysis of diamond saw blade with multi-holes base and different segment width, influence of different hole diameter, hole number and segment width to nature frequency is clear. Adopted single-factor test, sawing force and acoustic emission signal are measured by cutting several kinds of strength concrete in different cutting parameters. The analysis to characters of sawing force and acoustic emission helps to find out optimum structure of diamond saw blade with different segment width, more rational sawing parameter and its adaptability to workpiece material.


2021 ◽  
Vol 113 ◽  
pp. 30-35
Author(s):  
LUĎKA HLÁSKOVÁ ◽  
ZDENĚK KOPECKÝ ◽  
VÍT NOVÁK

Effect of thermal modification temperature of spruce wood on cutting parameters during circular saw blade cutting. The work examines the effect of temperature on energetical parameters (specific cutting resistance and cutting force) when cutting heat-treated wood of Norway spruce (Picea Abies) by a circular saw. The test samples were heat-treated at 160°C, 180°C, 200°C and 220°C. One sample was not heat treated and was used as a reference sample. In comparison with the theoretical assumptions, the influence of temperature on the cutting force and specific cutting resistance was confirmed. With increasing temperature of modification, the specific cutting resistance and cutting force decreased. The reduction of value of cutting force is related to changes in the chemical structure of the wood components, weight and density loss due to the increasing temperature of modification.


2014 ◽  
Vol 496-500 ◽  
pp. 222-226 ◽  
Author(s):  
Xin Tan ◽  
Hu Huang ◽  
Lin Chen ◽  
Qing Bin Zhang

During the sawing process of cold sawing machine, it emergences of blade wear too fast, the current is too large, sawing not high quality of rolled products,Be aimed at those problem, the paper established the finite element of side shake structure saw blade and ordinary flat blade model, and using the ANSYS finite element analysis software to make the dynamics calculation about the two kinds of saw blade. Through the analysis and comparison of backlash saw blade and natural frequency, different cutting parameters effect of stress and deformation of the saw tooth transient, and the simulation results will be applied to the field of sawing testsThe results show that the backlash saw blade in the vibration characteristics, performance and other aspects of the force and deformation are improved compared with the ordinary blade


2013 ◽  
Vol 548 ◽  
pp. 82-89
Author(s):  
Maria Araújo Fernández ◽  
Javier Taboada Castro ◽  
Jose Antonio Vilán Vilán ◽  
Nuria Sánchez Delgado

The ornamental rock sector in Galicia (NW Spain), in particular the granite extraction and processing sector, has undergone tremendous development in recent years as a direct consequence of the use of non-aggressive rock mass extraction methods and the progressive modernization and automation of the different processes for processing and finishing the slabs, as well as the improvement of in-plant logistics. Nevertheless, it has been ascertained that cutting parameters entered as setpoint values in the diamond circular saws, used for the subdivision of slabs of the different commercial granite varieties, do not fit clear technical criteria for the optimization of cutting efficiency, but are selected and pre-set based on the experience of the circular saw operator. In order to evaluate the validity of thus selected cutting parameters and to provide the sector with a more objective tool, the cutting performance of seven granite varieties from Galicia which have high sales was analysed. Thus, each available slab was subdivided using four different cutting settings resulting from modifying two of the parameters which most affect cutting efficiency: cutting speed (m/min) and cutting depth (mm). These parameters, in turn, have an influence on power consumption (kWh), diamond saw blade wear (mm) and average production (mm2/min). Thereby, an exhaustive data acquisition process was carried out in order to create a complete database with the representative information of the cutting of each of the seven tested varieties and determine the optimum configuration for cutting each material, based on the results of a graphical analysis of the mean of data and the analysis of the variance (ANOVA).


2013 ◽  
Vol 281 ◽  
pp. 234-238
Author(s):  
Tao Yao ◽  
Guo Lin Duan ◽  
Yang Gao

A nonlinear numerical simulation model of stone-cutting circular saw blade was developed for the purpose of understanding the mechanics of cutting process by employing LS-DYNA program. Based on the classical damage model theory and fracture criterion, the action of cutting stone is mainly considered as extruding sliding friction and pressing. The movement rule and wear mechanism were analyzed in stone cutting process. After the transient strain field was obtained, the corresponding pressure was calculated. The results showed the present method is applicable to forecasting and optimizing the cutting parameters for efficient control and improvement of separation.


2010 ◽  
Vol 126-128 ◽  
pp. 667-671 ◽  
Author(s):  
Huai Ying Fang ◽  
Yuan Li ◽  
Hui Huang ◽  
Xi Peng Xu

The effects of cutting parameters on the transverse vibration of diamond circular saw blade were experimentally investigated. Transverse vibration was online measured by a novel measuring system developed by wireless sensor. Meanwhile, axial force on saw blade was measured by a dynamometer. By the experimental results under different cutting parameters, the time domain characteristics of transverse vibration of saw blade were analyzed, and the relationships between transverse vibration and cutting parameters were also obtained. Axial deformation is greatly influenced by the axial force acting on saw blade.


2021 ◽  
Vol 67 (12) ◽  
pp. 649-665
Author(s):  
Zhiwen Wang ◽  
Qingliang Zeng ◽  
Zhenguo Lu ◽  
Lirong Wan ◽  
Xin Zhang ◽  
...  

The circular saw blade is widely applied in rock processing; its cutting performance significantly impacts rock processing. Therefore, the numerical simulation model of rock cutting with the flexible circular saw blade has been established to investigate the effects of cutting parameters on the stress and cutting force of circular saw blade, and the damage and stress of rock in the circular saw blade cutting into rock vertically at constant feed speed and rotation speed. The research results indicate that the stress of the saw blade and rock rises with the increase of feed speed and rotation speed of the saw blade. Furthermore, the rock damage and the cutting force of the circular saw blade increase with the increasing feed speed and decrease with increasing rotation speed. The circular saw blade cutting force, vertical force, and horizontal force increase with the rising distance between the double circular saw blade. However, the axial force decreases. The research results of cutting hard rock with the flexible circular saw blade can aid in the optimization of cutting parameters and improve cutting efficiency.


2021 ◽  
Author(s):  
Yang Lu ◽  
JIanxin Deng ◽  
Qinghao sun ◽  
Dongliang Ge ◽  
Jiaxing Wu ◽  
...  

Abstract In this paper, linear micro textures that parallel to the sawtooth edge were fabricated on the surface of the high speed steel W6Mo5Cr4V2 circular saw blade by laser engraving. Further, cutting performance of micro textured circular saw blade (TCS) and traditional circular saw blade (CS), including sawing arc length, sawing force, sawing temperature, machined surface roughness and wear mechanism, were investigated in sawing 304 stainless steel pipes under the cutting fluid condition. Results showed that the largest sawing arc length and sawing force were occurred on the circular saw blade sawing outward from the inner wall. In addition, TCS circular saw blade exhibited better cutting performance and the mechanisms were found, on the one hand, the effective sawtooth-chip contact length was reduced due to the micro textures fabricated on the sawtooth surface, on the other hand, cutting fluid can be better penetrated into the micro textures and formed stable lubrication film in sawtooth-chip contact interface.


2010 ◽  
Vol 431-432 ◽  
pp. 86-89 ◽  
Author(s):  
Jing Kun Wang ◽  
Xing Ai ◽  
Guo Jun Xu ◽  
Jin Sheng Zhang

The granite cutting processing using diamond circular saw blades is the most extensive application processing methods. The cutting force is measured at different cutting depth ap, sawing feed rate vf and linear velocity v when the granite is cut by diamond circular saw blade by orthogonal experimental method. And the sawing force empirical formulas relative to these three variables are educed. We can obtain the experimental results as follows. The radial force Fn is greater than the tangent force Ft when ap is smaller than the circular saw blade diameter. The corresponding Fn and Ft are all smaller as the feed rate is greater at the same circular saw blade diameter. The cutting forces increase obviously as the cutting depth increases at the same circular saw blade diameter and feed rate.


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