Machinability of Nickel-Based Superalloys Using Ceramic Tools

Abstract

Nickel-based superalloys are attractive to many industrial sectors (automotive, military, energy, aerospace etc.). However, their physical properties make them difficult to machining using traditional tools. Therefore, the new materials for the machining of Ni-based alloys are required. Ceramic-based composites could act as a tool to replace the current materials. The incentives for this paper are to provide an overview of existing ceramic composites and draw some conclusions that will help in solving the problem of choosing materials for processing of Ni-based superalloys. Despite the diversity of ceramic composites in this work the focus was on the SiAlON ceramic.

Tool Wear Prediction When Machining with Self-Propelled Rotary Tools

“…Furthermore, as established in [18], the indentation hardness of the tool must be thrice that of the machining surface. Ceramics and cubic boron nitride (cBN) tools are typically considered for hard turning since tool wear and plastic deformation of the cutting edge degrade the quality and consistency of the machining surfaces [19][20][21]. Many researchers have investigated the chip removal and wear mechanisms of hard turning employing cBN, polycrystalline cubic boron nitride (PcBN), and ceramic cutting tools.…”