Abrasive particle pose controllable grinding test platform and abrasive particle pose controllable grinding test method for single abrasive particles
A single abrasive grain and grinding test technology, which is applied in the direction of testing wear resistance, etc., can solve the problems of ignoring the influence and irregularity of abrasive grains, so as to optimize the design of grinding wheel landform and grinding consumption, and control the cutting thickness of abrasive grains The effect of distribution characteristics
Active Publication Date: 2015-12-16
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology
At present, the abrasive grains used in the single abrasive grain grinding test are mainly cubic boron nitride and diamond, and the abrasive grains are mostly randomly arranged without rules, ignoring the state of the cutting edge of the abrasive grains (that is, the abrasive grain pose) Influence on the grinding process
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Embodiment 1
[0039] figure 1 It is a schematic diagram of a hexa-octahedron formed by a regular octahedron lacking hexagons, figure 2 is the overall schematic diagram of a single abrasive grain grinding test wheel with controllable abrasive grain position and orientation, image 3 Is the schematic diagram of the block assembly.
[0040]The single abrasive grinding wheel with controllable abrasive grain position and posture is to arrange two nodes 4 symmetrically in the center of the circle on the grinding wheel substrate 1 of the single abrasive grinding test grinding wheel, and only one of the two nodes There are abrasive grains, and another symmetrically arranged segment is used as a balance segment; an installation groove is set at the position where the segment is installed on the grinding wheel base, and the segment is placed in the installation groove, and the segment is radially tightened by means of bolts. Axial compression; the segment assembly (including the segment, jacking o...
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Abstract
The invention discloses an abrasive particle pose controllable grinding test platform and an abrasive particle pose controllable grinding test method for single abrasive particles. The abrasive particle pose controllable grinding test platform comprises an abrasive particle pose controllable grinding wheel for the single abrasive particles and an acoustic emission measuring system. A block with the abrasive particles is arranged on the abrasive particle pose controllable grinding wheel for the single abrasive particles, and a balance block without the abrasive particles is arranged on the abrasive particle pose controllable grinding wheel and is symmetrical to the block with the abrasive particles; the abrasive particles are in contact with an abrasive particle braze welding platform on the top of a mandrel during braze welding; the acoustic emission measuring system comprises an acoustic emission sensor, a power amplifier, a data acquisition card and a computer. The abrasive particle pose controllable grinding test platform and the abrasive particle pose controllable grinding test method have the advantages that abrasive particle pose and cutting forms can be constrained, grinding procedures can be monitored, and accordingly technical support can be provided for further studying material removal mechanisms during grinding and abrasion conditions of the abrasive particles.
Description
Technical field: [0001] The invention relates to the field of grinding, in particular to a single abrasive grain grinding test platform with controllable abrasive grain pose and posture. Background technique: [0002] Single abrasive grain grinding is an important means to understand the grinding process. Through the study of the grinding law of single abrasive grains, the grinding mechanism of materials can be well understood. Single abrasive grain grinding can not be affected by other abrasive grains in a similar grinding process, and a larger load can be applied, and the degree of grinding can be enlarged, so as to obtain the phenomenon existing in the single abrasive grain grinding process and regularity. Studying the grinding process of single abrasive grains has important guiding significance for analyzing the influence of force, temperature, material chip formation and grinding wheel topography on the surface quality of the workpiece during the grinding process, and ...
Claims
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IPC IPC(8): G01N3/56
Inventor 丁文锋戴晨伟徐九华朱烨均傅玉灿苏宏华杨长勇
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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