Effects of Additives and CBN Grit Size on the Machinability of PCBN Tools

Zhi Lv; Ji Fu Feng; Feng Lin; Xi Peng Xu

doi:10.4028/www.scientific.net/MSF.532-533.41

Paper Titles

Hot Press Sintering and Superplastic Forming of Fine-Grained Si₃N₄-Si₂N₂O Composites
p.25

Experimental Study of Micro-Flowing Characteristics of Liquid Transport in Round Micro-Channels
p.29

Development of a Fast Tool Servo for Ultraprecision Turning
p.33

Microstructure and Mechanical Properties of Nano-Scale Al₂O₃ Toughened Ti (C,N) Matrix Cermet Tool Materials
p.37

Effects of Additives and CBN Grit Size on the Machinability of PCBN Tools
p.41

Influence of Cutter’s Helix Angle, Workpiece Hardness, Milling Orientation, and MQL in High-Speed Side Milling of AISI D2
p.45

Synthesis Error Modeling and Thermal Error Compensation of Five-Axis Machining Center
p.49

Research on the Inverse Dynamics of the Flexible Multi-Body Systems for the Hybrid Polishing Kinematics Machine Tool
p.53

Diamond Turning of Special Stainless Steel by Applying Ultrasonic Vibration with Gas Shield
p.57

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Effects of Additives and CBN Grit Size on the Machinability of PCBN Tools

Abstract:

An investigation was reported on how to improve the machinability of PCBN tool for realizing the electric spark line cutting of PCBN tool. The machinability of the PCBN tool was evaluated in terms of its current conductivity. The influences of the additive compositions, additive concentrations and grit sizes of CBN on the current conductivity of PCBN tool were discussed through manufacturing PCBN tool. Experimental results indicated that the machinability of PCBN tool was attributed to the mesh structure of current-conducting additive, which was the combined effects of high additive concentrations and fine CBN grits.