scholarly journals Effect of thermochemical treatments on the surface hardening of a circular saw blade: A microstructure comparison of nitride layers, boride layers and TiN coating formed on ASTM A1011 steel

2021 ◽  
Vol 27 (S1) ◽  
pp. 2372-2374
Author(s):  
Irving Morgado-González ◽  
Martín Ortiz-Domínguez ◽  
Oscar Gómez-Vargas ◽  
Edgar Cardoso-Legorreta ◽  
Jesús García-Serrano ◽  
...  
2011 ◽  
Vol 228-229 ◽  
pp. 484-489
Author(s):  
Xiao Ling Wang ◽  
Zhong Jun Yin ◽  
Chao Zhang

Thinner saw blades cannot resist large lateral cutting forces due to their lower stiffness. In this paper we propose a composite reinforcement method to improve the mechanical properties of circular saw blades. We analyze and simulate the stress and strain fields of our proposed reinforced circular saws by Finite element method. Our analytical results contain not only influences of reinforcing parameters but also loading conditions on the lateral stiffness and the natural frequency of composite saw blades. Here the reinforcing parameters include: 1) the reinforcement location on circular saw blades, 2) the volume fraction of the reinforcements, 3) the number of the reinforcements; and loading conditions include: 1) the cutting force, 2) the rotational speed. Our composite reinforcement model and simulation results can contribute to a better design of circular saw blades.


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.


2015 ◽  
Vol 66 (2) ◽  
pp. 123-128
Author(s):  
Ján Svoreň ◽  
Ľubomír Javorek ◽  
Adam Droba ◽  
Dušan Paulíny

2014 ◽  
Vol 614 ◽  
pp. 32-35 ◽  
Author(s):  
Ming Song Zhang ◽  
Yi Zhang ◽  
Jian Jun Ke ◽  
Xiao Wei Li ◽  
Lian Bing Cheng

The finite element method was used to study tangential roller method impact on the stability of circular saw blade. Using 30 ° cyclic symmetric model is analyzed. The results show that the tension of the saw blade is not the same, and tensioning effect is different, when the tangential roller pressure is not same. At the same time, after tangential roller, the face run out of saw blade is small, which show that the smoothness of tangential roller is better.


2013 ◽  
Vol 444-445 ◽  
pp. 129-133 ◽  
Author(s):  
Ming Song Zhang ◽  
Pu Xian Zhu ◽  
Jian Jun Ke ◽  
Yi Kuan Zhu

The finite element modal analysis was used to study natural frequency of circular saw blade, when slotted. Finding the frequency of slotted is smaller than no slotted saw blade, showing that slot can have the effect of noise attenuation. The increasing of slot length, slot width, slot position, slot number can reduce the natural frequency of circular saw blade on the whole. The orthogonal text was used to study slot parameters. Finding that slot parameters’ influence of primary and secondary relations on saw blade first five natural frequency is slot position > slot number> slot length > slot width.


An automatic fodder system Was developed that automatically feed the cattle food (sorghum) at a predetermined time without the need of labour . In a way, it is to control the cattle feeding activity by using a system that is generally combined with the mechanical system and electrical systems to form an automatic fodder system (AFS) instead of manually feeding. The cattle owners whom are away for a long time will have troubles about knowing the situation of the feeding cattle. Thus, this automatic cattle fodder device is very convenient, and easily monitorable. The device will consist of a gear motor, wiper motor, circular saw blade, conveyor and Microcontroller8051.The cutter is used to cut the sorghum into small pieces a to fed the cattle. This improves the animal digestion and prevents animal from rejecting any part of their food. A timer is used to control the number of cutting time at an interval of time. Plus, there is an IR sensor to sense the cattle feed. With this, the user or the owner can be away from home get benefited through useful data that are receivable through communication. Further future development may be done by including the load cell to measure the exact weight of the chaffs for the analysis purpose which is helpful for efficient cattle fodder system.


Author(s):  
Adam Droba ◽  
Ján Svoreň ◽  
Ján Marienčík

The main problems during cutting with circular saw blade are inaccurate cut, low quality of surface, high level of noise. These adverse effects are related to oscillation of circular saw blade. This oscillation cause adverse effects not only on workpiece but also on tool. In some case the circular saw blade reaches the value of critical rotational speed which leads to its instability and cause the oscillation of blade which may leads to destruction of tool. So the reduction of the amplitude of oscillation is essential for removing the adverse effects. This paper deals about influence of shapes of teeth as a type of modification that has positive effect oncritical rotational speed of circular saw blade. The parameters of studied models of circular saw blade were 42 number of teeth and the height of teeth with slice from sintered carbide was 14 mm. The variable parameter was the ratio between surface of teeth and surface of teeth gap. In this study was used computer software Creo Parametric 1.0 for obtaining natural frequencies of studied models. This software uses in analysis finite element method (FEM). There were done some steps to idealize the models. For calculating static and dynamics natural frequencies of modelswere used modal analysis. The critical rotational speed was calculated from obtained results by Creo Parametric 1.0 and compared on 5 models of tool.


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