Abstract: Orbital drilling is an advanced and improved technique over conventional drilling in producing holes in composites. Single layer diamond tools of different geometries and grain sizes were experimentally investigated to explore their performances in orbital drilling of multidirectional carbon/epoxy l...
Abstract: With the development of the manufacturing industry, the required parts are gradually moving towards larger sizes, complex shapes, and high surface processing quality. Moreover, detecting the quality of parts during the processing is an essential step. In order to improve the accuracy, the speed and ...
In order to improve the forming accuracy of grinding wheel, the pressing method of the four-column press for grinding wheel was investigated, tested, carded and analyzed. It was found that the traditional press generally had the phenomena of three centers with different shafts, easy unbalance loadin...
Ultra-fine iron powder was prepared by water-gas atomization process. The physical properties and the micro morphologies of the ultra-fine iron powder, the reduced iron powder and the carbonyl iron powder were compared. The sintered blocks of three kinds of iron powders were prepared under a certain...
Abstract: The micro-dynamic process of diamond tool micro-nanometric cutting single crystal nickel was studied by molecular dynamics software Lammps. The types of defects, the relationship between cutting force and damage, and the evolution of dislocation lines during micro-nanometric cutting of single crysta...
To study the tool wear mechanism of turning SiCp/6005Al and the influence of tool wear on cutting force, cutting temperature and workpiece surface quality, cutting experiments at different speeds V and different feed speeds f were carried out. Then the tool wear morphology of each group of experimen...
Abstract: In view of the long process route of high-precision gear machining, a method of creep feed deep profile grinding of small-module gears was proposed. The experiments of creep feed deep profile grinding of small-module gears were carried out. The effects of different feed speeds on the grinding power,...
Abstract: Aiming at the problem that precision and efficient end grinding is required for the two-phase 3D reconstruction of SiCp/Al grinding layer by layer, an analytical model of end grinding force of SiCp/Al is established based on the grinding force of SiCp/Al grinding with a single abrasive particle, con...
Abstract: In order to improve the grinding quality and efficiency of 20CrMo steel camshaft, response surface method was used to conduct grinding tests. The influence of grinding process parameters on surface roughness was analyzed, and the corresponding regression model was established. Based on the shape cha...
Aiming at the problem of grinding burns on the third-generation single crystal superalloy DD9, a three-factor and five-level experiment is designed in this paper. From the perspectives of surface morphology, microhardness and microstructure, the effect of grinding process parameters on grinding burn...
Abstract: To study the influence of grain arrangement on the surface profile of the workpiece, a mathematical model and its corresponding analytical algorithm of pyramidal abrasive belt grinding were established. The roughness value was simulated and predicted with Abaqus software. Grinding tests were carried...
In order to obtain the optimal process parameter combination of double-sided grinding Si3N4 cylindrical rollers, the orthogonal experiment method was used to explore the influences of the grinding disc speeds, the grinding pressures and the basic particle sizes of the abrasive particles on the surfa...
Abstract: The hardness of hard-brittle materials is high, which results in the low lapping efficiency of traditional silicon carbide magnetic abrasive and short abrasive life. In view of this situation, a magnetic abrasive with diamond particle as lapping grit was developed. Using high purity iron powder as i...
Abstract: In order to improve the processing quality, processing efficiency and reduce the cost wastage of the dome surface, the effect of each motion parameter on the uniformity of material removal from the optical dome surface during the polishing process was investigated. In this paper, the dispersion coef...
In order to improve the surface quality of germanium wafer, the material removal behavior of germanium wafer under the action of solid-liquid two-phase flow was studied by means of rotating magnetic field magnetic fluid grinding and numerical simulation. Firstly, the grinding principle of magnetic f...
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