Abstract
Micro-abrasive blasting was urged by compressed air to form the high-speed sprayed water beam and passivate the cutting edge of inserts. The cutting edge shape had been changed without any damages due to the micro-impacting action of the high speed abrasive, which improved the quality of the cutting edge. The generative mechanism of cutting edges during the micro-abrasive blasting was discussed, and then, the edge quality was evaluated. The orthogonal experiment was designed to optimize the micro-abrasive blasting parameters range, and the effects of micro-abrasive blasting parameters on the passivated edge quality were further investigated by full factors experiment. The edge passivation results indicated that the micro-abrasive blasting processing technology mainly relied on the micro-cutting action of abrasives which crashed the insert in the mixture to generate the rounded cutting edge. Moreover, the micro-abrasive blasting process could remove an amount of edge defects of inserts, such as cavities and cracks. After micro-abrasive blasting, the cutting experiment was used to assess the cutting performance of the passivated insert. And machining results showed that the insert treated by micro-abrasive blasting had a higher cutting life and stabler cutting force, which could improve the cutting performance of insert.
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Funding
This project was jointly supported by the Shandong Science Fund for Distinguished Young Scholars (JQ201715), the National Natural Science Foundation of China (No. 51575322), and Tai Shan Scholar Foundation (TS20130922).
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Zhang, S., Zou, B., Liu, Y. et al. Edge passivation and quality of carbide cutting inserts treated by wet micro-abrasive blasting. Int J Adv Manuf Technol 96, 2307–2318 (2018). https://doi.org/10.1007/s00170-018-1705-7
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DOI: https://doi.org/10.1007/s00170-018-1705-7