Papers by Keyword: Cutting Depth

Abstract: In this work, the experimental research was carried out on the processing of the cutting surface of a grinding wheel with a ceramic bond via continuous laser radiation with a wavelength of 10.6 μm. The influence of laser radiation power, processing speed on the depth and width of the obtained cut was investigated. A full factorial experiment was carried out with varying factors at two levels. In the form of a regression equation, a mathematical model of the effect of radiation power and processing speed on the output parameters of the process is obtained. Using Fisher's criterion, it is shown that the resulting equation adequately describes the process under the study. The analysis of the regression equation makes it possible to assess the relative influence of each factor and the effects of the interaction of factors on the depth and width of the cut on the surfaces of the grinding wheel.

Abstract: Systematic achievement of high productivity lapping entails conceiving of a robust working system, insensitive to the action of disturbing factors. The experiments described in this paper were aimed at configuring such a robust machining system in view of maximising productivity. The main purpose of the experiments was to identify an optimum combination of the values of the input quantities of the machining system, such as to achieve its robustness, that is rendering it insensitive to the action of noise factors.

Abstract: Based on the molecular dynamics (MD) theory, in this article, we made a simulation study on titanium nanometric cutting process at different cutting depths, and analyzed the changes of the cutting depth to the effects on the work piece morphology, system potential energy, cutting force and work piece temperature in this titanium nanometric cutting process. The results show that with the increase of the cutting depth, system potential energy, cutting force and work piece temperature will increase correspondingly while the surface quality of machined work piece will decrease.

Abstract: Reasonable tool condition has crucial importance to prevent tool malfunction such as abnormal wear, chipping and cutting teech breakage when broaching expensive components i.e. gas turbine engines disks. This paper proposes a broaching simulation test method of using customized single tooth groove tools with a variety of rake angle and clearance angle to simulate broaching processing at shaper machine under different cutting depth. The effects of tool condition and cutting depth on cutting forces, surface roughness analyzed by Response Surface Methodology and surface morphology of machined surface were discussed, which revealed that the changes of cutting depth play a dominate role in processing quality, followed by tool rake angle, and tool clearance is subordinate. Good tool edge strength should be assured from prevent shock and vibration during the selection of tool condition.

Abstract: This research evaluated the planing performance of bamboo scrimber boards at three feed speeds and three cutting depths and used two methods to assess the finished surfaces. A macroscopic grade assessment was made according to ASTM D 1666-87 for visible planing defects. The other assessment was a microscopic scale roughness test measuring surface average roughness in terms of GB/T 12472. The visible results showed that the finished surface quality of bamboo resulted mainly in Grades and , with the main defect being torn grain. The two evaluations method showed consistent results in surface quality that the highest percentage of Grade was counted and the lowest roughness value occurred. Compared with the hardwood Sawtooth oak widely used in furniture industry in China, planning quality of bamboo scrimber board is better in terms of roughness.

Abstract: The technology of the NC electrochemical-mechanical composed cutting was used on cutting the GH710 alloy materials, and orthogonal experiment had been done to analyze the effects of parameters on cutting depth. The results show that the spindle speed and voltage are mainly two factors to affect cutting depth of the workpiece. Moreover, the results also identify the optimal machining parameters: Temperature of 45°C, Voltage 24V, Electrolyte pressure1.2MPa and Spindle speed1000 r/min.

Abstract: Abrasive suspension jet is a new embranchment of abrasive jet. In the cutting process of this jet, the suspension concentration is constant, so the cutting quality is more stable. In this paper, a prediction model based on a back-propagation (BP) artificial neural network is presented for predicting the cutting depth generated by abrasive suspension jet. In the application of the BP neural network, the mean error of the output in the model training is 0.01, the relatively discrepancy is below 8.70%. The modeling method based on the BP neural network is much more convenient and exact compared with traditional methods, and can always achieve a much better prediction effect. It is verified with experiments to be reasonable and feasible, and it is the better foundation for the future study of abrasive suspension jet.

Abstract: In the cutting procedure, the cutting depth influences cutting forces, chip breaking, chip shaping, and the distribution status of residual stress. The two-dimension heat-mechanic coupling orthogonal cutting model is established with the FEM analysis software by use of the Lagrange quality point coordinate system description method in this paper. This paper simulates a typical work-piece chip breaking process with different cutting depth, which gets the cutting forces curves and the total status of residual stress distribution and the status.

Abstract: In the process of cutting Countertop Board with Disc Circular Saw Blades, the intersecting that generated by them was an arc, which would improve the stress state of the blade greatly, therefore the efficiency of processing was improved significantly. However, in the process of cutting, the arc formed by them would be changing with the changing of the cutting depth. For the reason that the appropriate cutting radius of the Disk Circular Saw Blades also would be changing with the changing of the cutting depth. In this document, we can get the relationship between the appropriate cutting radius and the cutting depth, as well as the relationship between the the reasonable cutting radius and the structure and size of the Disc Circular Saw Blades through the theoretical analysis and calculations on the basis of the experiment, which could provide a reliable basis for the efficient and rational use of Disc Circular Saw Blades[1].

Abstract: Establishing the plow cutting coal seam 3D simulation model, Using finite element analysis software ANSYS/ LS-DYNA, simulating plow bit cutting coal seam process. under Through this study, obtaining the plow speed, cutting resistance of plow bit’s time process curve, analyzing the influence on cutting resistance of different cutting depth, separation distance and width.