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Simulation and Experimental Study on Abrasive-Tool Interaction in Drag Finishing Edge Preparation
Julong Yuan1,2, Yuhong Yan1,2, Youzhi Fu3,4
1College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China.
Micromachines
|October 29, 2025
Summary
Drag finishing optimizes cutting tools by controlling processing time, speed, and rotation direction. This method, simulated using discrete element modeling (DEM), enhances tool performance and lifespan through abrasive wear.
Area of Science:
- Materials Science and Engineering
- Mechanical Engineering
- Tribology
Background:
- Tool edge preparation is crucial for optimizing cutting tool performance and longevity.
- Drag finishing is a key engineering method for tool edge preparation, utilizing planetary motion in abrasive media.
- Understanding the effects of process parameters on abrasive-mediated tool wear is essential for efficient edge preparation.
Purpose of the Study:
- To develop and validate a discrete element method (DEM) model for drag finishing edge preparation.
- To investigate the influence of processing time, tool rotational speed, and rotation direction on tool wear.
- To predict and optimize tool geometry changes during edge preparation.
Main Methods:
- Development of a discrete element method (DEM) model for drag finishing.
- Validation of the DEM model through experimental milling cutter edge preparation.
- Systematic variation of processing time, tool rotational speed, and rotation direction in simulations and experiments.
Main Results:
- Increased processing time and tool rotational speed led to progressive increases in cumulative energy and tool wear.
- Rotation direction significantly impacted tool wear, with counterclockwise (CCW) rotation resulting in less wear than clockwise (CW) rotation.
- Experimental results confirmed that edge radius increases with processing time and rotational speed, and rotation direction affects the edge shape factor K.
Conclusions:
- The validated DEM model accurately predicts the impact of edge preparation parameters on tool geometry.
- Controlling rotational speed is key to optimizing edge preparation efficiency.
- Abrasive wear is the primary material removal mechanism, and rotation direction can be used to achieve symmetric edge preparation.
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