| Comparative investigation on high-speed grinding of TiCp/Ti–6Al–4V particulate reinforced titanium matrix composites with single-layer electroplated and brazed CBN wheels |
| |
| 基金项目： | The authors gratefully acknowledge the financial support for this work by the National Natural Science Foundation of China(51235004 and 51375235)，the Fundamental Research Funds for the Central Universities(NE2014103)，the Science and Technology Supporting Pro-gram of Jiangsu Province(BE2013109 and BY2014003-008) |
| |
| 摘 要： | In order to develop the high-efficiency and precision machining technique of Ti Cp/Ti–6Al–4V particulate reinforced titanium matrix composites(PTMCs), high-speed grinding experiments were conducted using the single-layer electroplated cubic boron nitride(CBN) wheel and brazed CBN wheel, respectively. The comparative grinding performance was studied in terms of grinding force, grinding temperature, grinding-induced surface features and defects. The results display that the grinding forces and grinding temperature obtained with the brazed CBN wheel are always lower than those with the electroplated CBN wheel. Though the voids and microcracks are the dominant grinding-induced surface defects, the brazed CBN wheel produces less surface defects compared to the electroplated wheel according to the statistical analysis results. The maximum materials removal rate with the brazed CBN wheel is much higher than that with the electroplated one. All above indicate that the single-layer brazed CBN super-abrasive wheel is more suitable for high-speed grinding of PTMCs than the electroplated counterpart.
|
| 关 键 词： | High-speed grinding PTMCs Single-layer brazed CBN wheel Single-layer electroplated CBN wheel Surface defects |
Comparative investigation on high-speed grinding of TiCp/Ti-6Al-4V particulate reinforced titanium matrix composites with single-layer electroplated and brazed CBN wheels |
| |
| Institution: | College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
| |
| Abstract: | In order to develop the high-efficiency and precision machining technique of TiCp/Ti–6Al–4V particulate reinforced titanium matrix composites (PTMCs), high-speed grinding experi-ments were conducted using the single-layer electroplated cubic boron nitride (CBN) wheel and brazed CBN wheel, respectively. The comparative grinding performance was studied in terms of grinding force, grinding temperature, grinding-induced surface features and defects. The results dis-play that the grinding forces and grinding temperature obtained with the brazed CBN wheel are always lower than those with the electroplated CBN wheel. Though the voids and microcracks are the dominant grinding-induced surface defects, the brazed CBN wheel produces less surface defects compared to the electroplated wheel according to the statistical analysis results. The maxi-mum materials removal rate with the brazed CBN wheel is much higher than that with the electro-plated one. All above indicate that the single-layer brazed CBN super-abrasive wheel is more suitable for high-speed grinding of PTMCs than the electroplated counterpart. |
| |
| Keywords: | High-speed grinding PTMCs Single-layer brazed CBN wheel Single-layer electroplated CBN wheel Surface defects |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
