Modal Analysis of Circular Diamond Saw-Blade for Deep Sawing of Granite

Author(s):  
Yuan Li ◽  
Xi Peng Xu
Keyword(s):  
Author(s):  
Claude Lechene

Electron probe microanalysis of frozen hydrated kidneysThe goal of the method is to measure on the same preparation the chemical elemental content of the renal luminal tubular fluid and of the surrounding renal tubular cells. The following method has been developed. Rat kidneys are quenched in solid nitrogen. They are trimmed under liquid nitrogen and mounted in a copper holder using a conductive medium. Under liquid nitrogen, a flat surface is exposed by sawing with a diamond saw blade at constant speed and constant pressure using a custom-built cryosaw. Transfer into the electron probe column (Cameca, MBX) is made using a simple transfer device maintaining the sample under liquid nitrogen in an interlock chamber mounted on the electron probe column. After the liquid nitrogen is evaporated by creating a vacuum, the sample is pushed into the special stage of the instrument. The sample is maintained at close to liquid nitrogen temperature by circulation of liquid nitrogen in the special stage.


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.


1999 ◽  
Vol 121 (2) ◽  
pp. 257-264 ◽  
Author(s):  
H. D. Jerro ◽  
S. S. Pang ◽  
C. Yang ◽  
R. A. Mirshams

One of the primary goals in the design of a diamond blade cutting system is to reduce the cutting force. By understanding the fundamentals of the kinematics of the sawing operation, these forces can be lowered and even optimized with respect to the machining parameters. In this work the material chipping geometries have been mathematically defined and derived through kinematic analysis. These geometries are bounded by four curves and depend on the parameters: depth of cut h, blade diameter D, transverse rate of the workpiece νT, peripheral speed of the saw blade νP, and grit spacing λ. From these chipping geometries, chip area and thickness relations have been obtained. A relation for the mean chip thickness to grit spacing ratio (tc/λ) has also been obtained as a function of the nondimensional machining parameter ratios, h/D and νT/νP. The effects of these parameters on tc were also investigated. It was found that increasing ω and D, reduces the chip thickness. Contrarily, increasing νT, λ, and h, increases the magnitude of the chip thickness. A review of older chipping models was performed, comparing well with the developed model. The results show an excellent agreement between the new model and the older ones. However, at moderately small to large h/D values the new model yields a more exact result. Thus, for h/D values greater than 0.08, it is recommended that the kinematic model be used to compute tc and other pertinent sawing parameters (i.e., grit force and grinding ratio) which are a function of tc.


2013 ◽  
Vol 423-426 ◽  
pp. 1870-1874
Author(s):  
Xiao Jun Wang ◽  
Min Zhao ◽  
Yun Feng Zhang

The secondary development of Pro/E NC Processing tool-database is carried out by the use of Pro/Toolkit and Access2003, which is based on VC++. The study can solve the problem of inputting a great number of parameters during simulation processing, and can also realize parametric design of diamond saw blade. It is researched to extend the applying of the CAM model of Pro/E in the stone cutting processing. In this study, it is realized to communicate data sources of saw blade parameter, Pro/Toolkit procedures and MFC application program by DLL, in order to finish use of database by means of activating menu and dialogue box. All above makes the diamond saw blade library work during NC Processing. Because the function of Pro/Toolkit sdk is fully developed, the special requirement of the stone industry for Pro/NC can be satisfied.


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.


2013 ◽  
Vol 380-384 ◽  
pp. 128-131
Author(s):  
Zhe Yuan ◽  
Zi Fang Qin ◽  
Rui Yuan Cao ◽  
Li Li Song

To improve the performance of diamond saw blade sawing, reduce vibration at the time of its work, prevent the blade resonance, the parametric model of diamond saw blade was been established based on the finite element software ANSYS, and the analysis file was been established through the structural reliability analysis module of the finite element analysis software ANSYS. The finite element method combined with the Monte Carlo method can be used to get the sensitivity index which effect the diamond saw blade security and the probability distribution function and the other principal impact factors, and which is theoretical basis for the diamond saw blade optimization and design.


2012 ◽  
Vol 727-728 ◽  
pp. 305-309 ◽  
Author(s):  
Ana Lúcia Diegues Skury ◽  
Guerold Sergueevitch Bobrovinitchii ◽  
Marcia G. de Azevedo ◽  
Sérgio Neves Monteiro

In the production of metallic saw blades segments impregnated with diamond particles, there are two basic functions of the metal-based matrix. First, to hold tightly the particles and, second, to display wear rate compatible with the diamond loss. The most common matrix materials are composed of either cobalt or iron, nickel, copper, bronze alloys and tungsten alloys. This paper investigated the microstructure and mechanical properties of Ni-Fe-Cu-Sn alloys as the metallic matrix of saw blade segments. It was found that the Ni content significantly influences the microstructure and mechanical properties of the alloy. Information on the diamond bonding efficiency of the Ni-Fe-Cu-Sn alloy as a cutting tool matrix were disclosed.


2004 ◽  
Vol 259-260 ◽  
pp. 154-158
Author(s):  
Q.X. Dai ◽  
Y.H. Fu ◽  
Z.Z. Yuan ◽  
F. Cao

2006 ◽  
Vol 315-316 ◽  
pp. 103-107
Author(s):  
Yi Qing Yu ◽  
Y.F. Zhang ◽  
Yuan Li ◽  
Xi Peng Xu

The present study was undertaken to examine the feasibility of circular sawing of granite with a newly shaped diamond saw blade. Three slots were formed on each side of each segment of the saw blade. Side-slotted segments and traditional segments were compared under same operating parameters. Measurements were made of the horizontal and vertical force components and the consumed power in order to obtain the tangential and normal force components. The surfaces of worn blade segments were examined by a scanning electron microscope. The consumed powers, normal and tangential force components for the side-slotted segments were found to be lower than those of the traditional segments. The position of resultant forces for the side-slotted segments is a little further away from the bottom of the cutting zone than the traditional segments. SEM observations indicated that the wear of the side-slotted segments was similar to sawing with traditional segments.


2015 ◽  
Vol 1095 ◽  
pp. 773-776
Author(s):  
Min Zhao ◽  
Lin Zhang ◽  
Bei Ming Tang ◽  
Kattan Maher

In this paper, noise of diamond circular saw blades has been measured, five different types of saw blades are used to measure their noise under different working condition. By analyzing of the experimental results, the effect of different factors on the saw blade noise is studied. The result shows that the increasing the speed of cutting machine or the diameter of blade, noise will become larger. The noise of saw blade with a hole or water slot would be greater than others without any hole or water slot.


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