Research on Drilling of Ni-Based Powder Metallurgy Superalloys

2016 ◽  
Vol 693 ◽  
pp. 680-685 ◽  
Author(s):  
Wang Hui ◽  
Pei Quan Guo ◽  
Yang Qiao ◽  
Jin Tao Niu
Keyword(s):  
Powder Metallurgy ◽  
Failure Modes ◽  
Cutting Tool ◽  
Cutting Speed ◽  
Cost Effective ◽  
Drilling Process ◽  
Twist Drill ◽  
Optimal Parameters ◽  
Tool Materials ◽  
Cutting Tool Materials

The application of Ni-based powder metallurgy superalloys materials was limited for its' difficult-to-machine, such as excessive tool wear, frequent tool change, short tool life, low productivity, and large amount of power consumption etc. So the studying of Ni-based powder metallurgy superalloys drilling process becomes extremely important. This paper mainly introduces the research status of drilling of Ni-based powder metallurgy superalloys materials and through synthesize considering cutting force and cost effective, we determined the optimal of cutting tool materials is carbide YG8 twist drill. The optimal parameters of drilling of Ni-based powder metallurgy superalloys: cutting speed of 15m/min, feed per tooth of 0.02mm/r. When the superalloys material is machined by standard twist drill, it is always appearing the failure modes of drilling.

Effect of Cutting Tool Materials on Surface Roughness and Cutting Forces in Machining of Al-Si3N4 Composite Produced by Powder Metallurgy

2007 ◽  
Vol 534-536 ◽  
pp. 869-872 ◽  
Author(s):  
Yusuf Ozcatalbas ◽  
Ersin Bahceci ◽  
Mehmet Turker
Keyword(s):  
Surface Roughness ◽  
Powder Metallurgy ◽  
Cutting Forces ◽  
Cutting Tool ◽  
Volume Fraction ◽  
Cutting Tools ◽  
Cutting Performance ◽  
Tool Materials ◽  
The Matrix ◽  
Cutting Tool Materials

In this study, aluminum-based composites reinforced with various amounts of α-Si3N4 were produced by powder metallurgy (P/M). The machinability properties of MMCs were determined by means of cutting forces and surface roughness. Machining tests were carried out by using PCD and K10 cutting tools. Increasing of Si3N4 volume fraction in the matrix resulted in a decrease of the surface roughness and turning forces. PCD cutting tools showed better cutting performance than K10 tools. Surface roughness and turning forces were decreased significantly by PCD tool.

Cutting tool materials III

Metal Cutting ◽  
2000 ◽  
pp. 227-249 ◽  
Author(s):  
Edward M. Trent ◽  
Paul K. Wright
Keyword(s):  
Cutting Tool ◽  
Tool Materials ◽  
Cutting Tool Materials

Mechanical Properties and Microstructure of Self-Lubricating Ceramic Cutting Tool Materials

2004 ◽  
Vol 471-472 ◽  
pp. 221-224 ◽  
Author(s):  
Jian Xin Deng ◽  
Tong Kun Cao ◽  
Jia Lin Sun
Keyword(s):  
Mechanical Properties ◽  
Cutting Tool ◽  
Solid Lubricants ◽  
Polished Surface ◽  
Ceramic Tool ◽  
Tool Materials ◽  
Ceramic Cutting Tool ◽  
Micro Cracks ◽  
The Difference ◽  
Cutting Tool Materials

Al2O3/TiC ceramic tool materials with the addition of solid lubricants such as BN and CaF2 were produced by hot pressing. Effect of the solid lubricants on the microstructure and mechanical properties has been studied. Results showed that AlN phase resulted from the reaction of Al2O3 with BN was formed in Al2O3/TiC/BN composite after sintering. Significant micro-cracks resulted from the residual stress owing to the difference in the thermal expansion coefficient were found on the polished surface, and caused large mechanical properties degradation. While Al2O3/TiC/CaF2 composite showed higher flexural strength, fracture toughness, and hardness compared with that of Al2O3/TiC/BN composite owing its porosity absent and finer microstructure.

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