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Volume 42 Issue 3
Jul.  2022
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Article Navigation >  Diamond & Abrasives Engineering  > 2022  >  42(3): 338-347
SHAO Mengbo, CHEN Bochuan, GAO Xiaoxing, YUAN Songmei. Grinding of TiC particle-reinforced steel-matrix composite GT35 with small diameter grinding rods[J]. Diamond & Abrasives Engineering, 2022, 42(3): 338-347. doi: 10.13394/j.cnki.jgszz.2021.3007
Citation: SHAO Mengbo, CHEN Bochuan, GAO Xiaoxing, YUAN Songmei. Grinding of TiC particle-reinforced steel-matrix composite GT35 with small diameter grinding rods[J]. Diamond & Abrasives Engineering, 2022, 42(3): 338-347. doi: 10.13394/j.cnki.jgszz.2021.3007
shu

Grinding of TiC particle-reinforced steel-matrix composite GT35 with small diameter grinding rods

doi: 10.13394/j.cnki.jgszz.2021.3007
  • 1.

    School of Mechanical Engineering and Automation, Beihang University, Beijing 100191, China

  • 2.

    Beijing Engineering Technological Research Center of High-Efficient and Green CNC Machining Process and Equipment, Beijing 100191, China

  • 3.

    Ningbo Institute of Technology, Beihang University, Ningbo 315100, Zhejiang, China

More Information
  • Received Date: 2021-12-23
  • Accepted Date: 2022-05-01
  • Rev Recd Date: 2022-01-28
    Abstract
  • Side milling experiments with small diameter grinding rods were carried out on TiC particle-reinforced steel-matrix composite to investigate the reasonable machining parameters and the cooling and lubrication conditions for this material, and to understand the influence of machining parameters on cutting forces, surface quality and tool wear. The results show that dry cutting and water-based synthetic grinding fluids lubrication are not as effective as extreme pressure grinding oil lubrication, especially that dry cutting causes tool burn. With extreme pressure grinding oil lubrication, the tool wear is stable after 12 minutes of continuous grinding, the main wear forms of which are fracture of abrasive grain wear, abrasive grain breakage and abrasive grain shedding. It is also found that the influence of spindle speed on cutting force is greater than that of feed speed, namely higher spindle speed leading to smaller cutting force, and that the machined surface roughness is mainly related to the level of tool abrasive grain but less affected by spindle speed and feed speed. In conclusion, when grinding TiC particle-reinforced steel-matrix composites, the conditions of extreme pressure grinding oil lubrication, high spindle speed and medium feed rate are recommended to obtain good tool life, surface quality and appropriate processing efficiency.

     

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