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Nickel-Based Alloy Dry Milling Process Induced Material Softening Effect.
Jun Zha1,2, Zelong Yuan1, Hangcheng Zhang1
1School of Mechanical Engineering, Xi'an Jiaotong University, 28 Xianning Road, Xi'an 710049, China.
Materials (Basel, Switzerland)
|August 29, 2020
Summary
This study demonstrates that high-speed dry milling of nickel-based alloys with SiAlON ceramic tools can significantly reduce cutting forces. Exceeding 527.52 m/min leads to easier cutting by surpassing the alloy
Area of Science:
- Materials Science and Engineering
- Manufacturing Processes
Background:
- Improving the processing efficiency of nickel-based alloys is critical.
- Dry milling offers environmental and economic advantages over wet machining.
Purpose of the Study:
- To investigate the dry milling performance of SiAlON ceramic tools on nickel-based alloys.
- To determine the optimal high-speed milling parameters for reduced cutting forces and improved machinability.
Main Methods:
- Finite element method (FEM) simulation to predict milling force and temperature.
- Experimental dry milling tests with SiAlON ceramic tools on nickel-based alloys.
- Monitoring milling force and temperature at varying cutting speeds (400-700 m/min).
Main Results:
- FEM simulations accurately predicted reduced dry milling forces.
- Experimental results confirmed that milling force decreases above 527.52 m/min.
- Milling temperature exceeded the alloy's softening point at high speeds, indicating easier cutting.
Conclusions:
- High-speed dry milling with SiAlON ceramic tools enhances nickel-based alloy processing efficiency.
- Achieving easy cutting is possible under specific high-speed dry milling conditions.
- Observed trends correlate with temperature-induced tensile strength reduction in the alloy.
