Abstract
Internal-cooling technology is an effective cooling method to reduce the temperature in grinding zone and avoid grinding burn for grinding hard-to-cut materials. In order to overcome the technological difficult problems generated by grinding heat in grinding process, such as pull, burns, and surface bonding, a novel method of pressurized internal-cooling was proposed to strengthen the heat dissipation of grinding arc zone. Initially, a pressurized internal-cooling slotted grinding wheel with regular grain distribution was delicately designed with numeric simulation and further validated with a 3D printing model. Subsequently, various parts of the grinding wheel and its supporting fixture were prepared and assembled. Finally, pressurized internal-cooling method and external-cooling method were utilized in grinding nickel-based superalloy, respectively, under the same grinding parameters. The results indicate that the proposed pressurized internal-cooling method, compared with the traditional external-cooling method or other internal-cooling method which only rely on centrifugal force, offers higher heat transfer efficiency, lower grinding temperature and surface roughness, and better surface integrity.
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Peng, R., Huang, X., Tang, X. et al. Performance of a pressurized internal-cooling slotted grinding wheel system. Int J Adv Manuf Technol 94, 2239–2254 (2018). https://doi.org/10.1007/s00170-017-1014-6
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DOI: https://doi.org/10.1007/s00170-017-1014-6