Journal of Northeastern University Natural Science ›› 2018, Vol. 39 ›› Issue (9): 1283-1288.DOI: 10.12068/j.issn.1005-3026.2018.09.014

• Mechanical Engineering • Previous Articles     Next Articles

Wear Experiment of Carbide Tool for Milling Nickel-Based Single Crystal Superalloy DD5

GONG Ya-dong, LIANG Cai-xia, LI Qiang, LIU Ming-jun   

  1. School of Mechanical Engineering & Automation, Northeastern University, Shenyang 110819, China.
  • Received:2017-05-22 Revised:2017-05-22 Online:2018-09-15 Published:2018-09-12
  • Contact: GONG Ya-dong
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Abstract: To explore the regulation of tool wear on milling surface of DD5 under the conditions of dry cutting and water-based minimum quantity lubrication(WMQL), carbide tool with four blades and PVD-TiAlN coating, super depth of field microscope and scanning electron microscopy(SEM)were employed. Taking the wear width of minor flank surface of cutting tool as the evaluation indicator, tool wear forms and wear mechanism were analyzed and studied. Three-dimensional measuring system profiler was used to measure the machined surface roughness. The result shows that, compared to dry cutting, water-based MQL technology can prolong tool life and improve the milling performance. The wear of carbide tool is caused by adhesion wear, oxidative wear, abrasive wear and diffusion wear.

Key words: single crystal superalloy DD5, milling, tool wear, wear mechanism, water-based minimum quantity lubrication(WMQL)

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