Investigation on the Correlation of Acoustic Emission Signal of Wheel Dressing and Grinding

• Main Authors: Li-han Jhang, 張立翰
• Other Authors: Neng-Hsin Chiu
• Format: Others
• Language: zh-TW
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/72107367806143399960

碩士 === 國立高雄第一科技大學 === 機械與自動化工程研究所 === 104 === In the grinding process, the removal of material will make cutting resistance increase, it cause the grinding wheel to generate geometrical variation and to change the characteristic of grinding, once the variation is too large, grinding wheel will decrease the ability of grinding, it creates a great effect in quality of workpiece. In order to ensuring the quality of workpiece, it is necessary to dressing for restoring the ability of grinding. In light of this, dressing will affect the surface quality of workpiece, and ground surface will reflect dressing. Thus, determine the processing quality by using dressing with grinding condition, it can raise processing efficiency, reduce processing costs and defective products. 　　The research is discussed about the effect of grinding process after dressing. Using signal analysis and data processing to handle the signal which is from dressing and grinding in experiments, observed and compared with the measurement of surface roughness, finding the correlation to provide the reference information for processors. 　　According to the result of experiment, it is correlative of the energy of acoustic emission and the equivalent dressing degree which is composed of depth and lead. The smaller equivalent dressing degree can obtain the good surface quality and consume less energy. However, when the equivalent dressing degree is modulated, the acoustic emission energy and the surface quality will change. Keywords : dressing, acoustic emission signal, equivalent dressing degree