Investigation on heating temperature characteristics during rotating induction brazing of monolayer CBN grinding wheels: Numerical simulation and experimental verification
Affiliations: College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, Jiangsu, China
Correspondence:
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Corresponding author. Wenfeng Ding, College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, Jiangsu, China. Tel./Fax: +86 25 84892901; E-mail:dingwf2000@vip.163.com;wfding@nuaa.edu.cn
Abstract: This article mainly carries out the numerical simulation and experimental
verification of heating temperature characteristics during fabrication of
monolayer brazed cubic boron nitride (CBN) grinding wheels using the
rotating induction brazing technique. Effects of the critical heating
factors in the rotating induction brazing process, such as induction
current, current frequency, heating gap and scanning speed are analyzed,
respectively. It was found that, the maximum value of heating temperature
increases nonlinearly with the increasing induction current and current
frequency, and with decreasing of the heating gap and scanning speed. The
empirical formula of heating temperature is established, and the rotating
induction heating parameters are accordingly optimized to control the
brazing temperature range of 880-940°C, which has been confirmed
valid during the rotating induction brazing operation of monolayer CBN
grinding wheels.
