Slicing process dynamic modelling of inner-diameter saw blade

2021 ◽  
Vol 94 ◽  
pp. 152-168
Author(s):  
Yong-Chen Pei ◽  
Hang Zhang
Keyword(s):  
Dynamic Modelling ◽  
Process Dynamic ◽  
Inner Diameter ◽  
Saw Blade

scholarly journals Process Dynamic Modelling Using Continuous Time Local Model Networks

1998 ◽  
Vol 31 (4) ◽  
pp. 149-154
Author(s):  
Séamus Mc Loone ◽  
George Irwin
Keyword(s):  
Continuous Time ◽  
Dynamic Modelling ◽  
Local Model ◽  
Process Dynamic ◽  
Local Model Networks ◽  
Model Networks

Analytical study on the stiffness and natural frequency improvements of tensioned inner-diameter saw blade

2019 ◽  
Vol 75 ◽  
pp. 197-204 ◽  
Author(s):  
Yong-Chen Pei ◽  
Hang Zhang ◽  
Jun-Heng Wang
Keyword(s):  
Natural Frequency ◽  
Analytical Study ◽  
Inner Diameter ◽  
Saw Blade

Wear Characteristics of ID Saw Blade in Silicon Ingot Slicing Process

2006 ◽  
Vol 532-533 ◽  
pp. 157-160
Author(s):  
Xin Wei ◽  
Hui Yuan ◽  
Rui Wei Huang ◽  
Shao Hui Lai
Keyword(s):  
Wear Mechanism ◽  
Wear Behavior ◽  
Cutting Process ◽  
Initial Tension ◽  
Wear Characteristics ◽  
Silicon Ingot ◽  
Working Surface ◽  
Inner Diameter ◽  
Saw Blade

In this paper, the wear behavior of the ID (inner diameter) saw blade in the cutting process of silicon ingot was observed with SEM. Its wear mechanism was discussed and the relation between the blade wear and vibration, deflection was analyzed. The results show that the blade worn manners include flatted diamond, micro-fractured diamond, macro-fractured diamond, pulled-out hole, tortoise-fractured bond, and polished bond. In the abnormal working stage of a blade, however, the working surface of the blade is displayed mainly with pulled out diamond, flatted diamond, macro-fractured diamond grains. Abnormal initial tension condition will induce severe vibration and deflection, and so then lots of diamond grits fractured or pulled out too early.

Study on the Dynamic Characteristics of the Large Diamond Circular Saw Blade

2014 ◽  
Vol 945-949 ◽  
pp. 781-784 ◽  
Author(s):  
Min Zhao ◽  
Lin Zhang ◽  
Bin Wu
Keyword(s):  
High Speed ◽  
Outer Diameter ◽  
Circular Saw ◽  
Experiment Method ◽  
Circular Saw Blade ◽  
Inner Diameter ◽  
Vibration Problems ◽  
Saw Blade ◽  
Vibration Modal ◽  
Large Diamond

Large diamond circular saw blade is a plane with large diameters and thin thick, so there are serious vibration problems in the process of sawing stone under the high-speed. By using the force hammer producing incentive experiment method, the effect of the inner and outer diameters to the vibration modal and frequency of diamond circular saw blade are analyzed. Through comparing inner and outer diameter, it can be found that the inner diameter has greater influence on the natural frequency, while the outer diameter has greater influence on the amplitude. The result supplies reliable data for eliminate or reduce resonance damage.

Investigation on bolt initial tensioning of inner-diameter saw blade

2019 ◽  
Vol 234 (8) ◽  
pp. 1609-1629
Author(s):  
Yong-Chen Pei ◽  
Jun-Heng Wang ◽  
Hang Zhang
Keyword(s):  
Experimental Testing ◽  
Mechanical Equipment ◽  
Lateral Thrust ◽  
Theoretical Simulation ◽  
Tightening Force ◽  
Practical Engineering ◽  
Hard And Brittle Material ◽  
Inner Diameter ◽  
Blade Cutting ◽  
Saw Blade

Inner-diameter slicing based on a thin inner-diameter saw blade is one of the main hard and brittle material slicing methods. The inner-diameter saw blade needs to be tensioned for increasing its slicing stiffness and stability before working, and the tensioning quality affects the performance of subsequent material slicing directly and severely. In this paper, through finite element theoretical simulation and specialized experimental testing, the tensioning operation schemes are investigated systematically in the view of tensioning state and quality of the inner-diameter saw blade. By including mechanical equipment and electrical instruments, a specialized automatic experiment system is designed and manufactured with control and measurement function. Effects of bolts pre-tightening force, tightening sequence and rounds, and tensioning amount on the inner-diameter saw blade cutting-edge unevenness, lateral thrust stiffness, and transversal vibration response are investigated by theoretical simulation and experimental observation. A guideline on the optimization and improvement of initial tensioning is proposed for the inner-diameter saw blade practical engineering production.

Wear state evaluation of inner-diameter saw blade based on vibration and noise signals during processing

2020 ◽  
pp. 095440542094910
Author(s):  
Yong-Chen Pei ◽  
Qin-Jian Liu ◽  
Ru-Shi Zhao ◽  
Hang Zhang
Keyword(s):  
Real Time ◽  
Low Cost ◽  
Good Method ◽  
Short Time Fourier Transform ◽  
Time Frequency ◽  
State Evaluation ◽  
Inner Diameter ◽  
Saw Blade ◽  
Short Time

Slicing and cutting processing by inner-diameter saw blade has advantages of low cost and convenient adjustment of machine tool. In small size and batch processing, inner-diameter saw blade slicing and cutting is a common-used processing method. However, the wear of inner-diameter saw blade will seriously affect surface quality of workpiece cross section. It is necessary to monitor and evaluate the wear in real time. Based on the short-time Fourier transform, this article introduces a new method for assessing the wear of inner-diameter saw blade. By measuring and analyzing time–frequency characteristics of vibration and machining noise signals, wear is monitored in real time. The results show that it is a good method to monitor the wear of inner-diameter saw blade based on vibration of machine and machining noise signals. In addition, this method has no interference and influence on cutting work of inner-diameter saw blade, which provides a new idea for other forms of tool wear detection in engineering.

Electron Probe Microanalysis of Frozen Hydrated Kidneys, Isolated Cells, and Cultured Cells

1982 ◽  
Vol 40 ◽  
pp. 402-403 ◽  
Author(s):  
Claude Lechene
Keyword(s):  
Liquid Nitrogen ◽  
Electron Probe Microanalysis ◽  
Electron Probe ◽  
Cultured Cells ◽  
Liquid Nitrogen Temperature ◽  
Elemental Content ◽  
Isolated Cells ◽  
Renal Tubular Cells ◽  
Diamond Saw ◽  
Saw Blade

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.

Age-Related Differences in Processing Dynamic Information to Identify Vowel Quality

1992 ◽  
Vol 35 (4) ◽  
pp. 892-902 ◽  
Author(s):  
Robert Allen Fox ◽  
Lida G. Wall ◽  
Jeanne Gokcen
Keyword(s):  
Older Adults ◽  
Vowel Quality ◽  
Perceptual Cues ◽  
Dynamic Information ◽  
Process Dynamic ◽  
Center Condition ◽  
Age Related ◽  
Control Version ◽  
Older Subjects ◽  
Whole Word

This study examined age-related differences in the use of dynamic acoustic information (in the form of formant transitions) to identify vowel quality in CVCs. Two versions of 61 naturally produced, commonly occurring, monosyllabic English words were created: a control version (the unmodified whole word) and a silent-center version (in which approximately 62% of the medial vowel was replaced by silence). A group of normal-hearing young adults (19–25 years old) and older adults (61–75 years old) identified these tokens. The older subjects were found to be significantly worse than the younger subjects at identifying the medial vowel and the initial and final consonants in the silent-center condition. These results support the hypothesis of an age-related decrement in the ability to process dynamic perceptual cues in the perception of vowel quality.

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