scholarly journals Comparative investigation on high-speed grinding of TiCp/Ti–6Al–4V particulate reinforced titanium matrix composites with single-layer electroplated and brazed CBN wheels

2016 ◽  
Vol 29 (5) ◽  
pp. 1414-1424 ◽  
Author(s):  
Zheng Li ◽  
Wenfeng Ding ◽  
Long Shen ◽  
Xinxin Xi ◽  
Yucan Fu
2016 ◽  
Vol 693 ◽  
pp. 1003-1008 ◽  
Author(s):  
Xin Xin Xi ◽  
Wen Feng Ding ◽  
Zheng Li ◽  
Jiu Hua Xu ◽  
Xun Yang Wang

High-speed grinding experiment of titanium matrix composites is carried out with cubic boron nitride (CBN) superabrasive wheels in this work. The heat transfer into the titanium matrix composites (TMCs) is discussed based on theoretical analysis. A calculation method of thermal ratio passing into the workpiece is represented. Results obtained show that high-speed grinding of PTMCs using vitrified CBN wheel has a greater thermal ratio passing into the workpiece than using electroplated CBN wheel. Moreover, a linear relationship is established between es and ds1/4ap-3/4vw-1/2.


Wear ◽  
2014 ◽  
Vol 318 (1-2) ◽  
pp. 68-77 ◽  
Author(s):  
Bong-Jae Choi ◽  
IL-Young Kim ◽  
Young-Ze Lee ◽  
Young-Jig Kim

2018 ◽  
Vol 875 ◽  
pp. 41-46 ◽  
Author(s):  
Yue Ying Li ◽  
Fu Wen Zhu ◽  
Zhen Liang Qiao

TiB2 particulate reinforced titanium matrix composites were prepared by mechanical alloying and spark plasma sintering. Volume fraction of TiB2 powders in the composites are 5%, 10%, 15%. The effect of milling time and the volume fraction of reinforcement on microstructure and properties of the composites were studied. The results show that with increasing milling time, the size of powder particles decreases, quantity of them increases, and microstructure of the sintered samples becomes finer and more uniform. When milling time reaches 30h, the trend of powder agglomeration increases, the downward trend of the particle size becomes slowly. With the milling time, the density of titanium matrix composites is on the rise. The density of 10vol%TiB2 particulate reinforced titanium matrix composites can reach 4.799 g/cm3, with 30h milling time and sintering at 900°C. The density and hardness of the composites increase with increasing the volume fraction of TiB2. When the volume fraction of TiB2 is 15%, after milling 10h and sintered at 800°C, the density and hardness of the composites can reach 4.713g/cm3 and HV851.58.


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