DEM Simulation of Ceramic Tool Abrasion in Machining Superalloy

Abstract:

The discrete element method (DEM) model which describes the friction and abrasion behavior of the interface between Sialon ceramic tool and superalloy chip in machining were established, effects of cutting speed and depth of cut on tool abrasion were numerically investigated. The abrasion behaviors of the Sialon ceramic tool mainly appear in terms of abrasive wear, fatigue wear, adhesion wear and diffusion wear. The DEM simulation results show that, within a certain range, the higher cutting speed effectively results in the slighter wear of Sialon ceramic tools, meanwhile the deeper depth of cut leads to more serious tool wear. It is further validated that discrete element method is feasible to simulate the tool wear behavior.

• Periodical: Materials Science Forum (Volumes 800-801)
• Pages: 385-389
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.800-801.385
• Online since: July 2014
• Authors: Rui Tao Peng*, Fang Lu, Xin Zi Tang, Yuan Qiang Tan
• Keywords: Discrete Element Method, SiAlON Ceramic Tool, Superalloy, Wear Mechanism

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