The Study of Tool Wear Mechanism Considering the Tool–Chip Interface Temperature during Milling of Aluminum Alloy
Abstract
:1. Introduction
2. The Mathematical Model of Temperature Field
2.1. The Temperature Field Model of Milling
2.2. The Tool–Chip Interface Temperature
2.3. Experimental Setup
2.3.1. The Workpiece and Tool Materials
2.3.2. The Experimental Scheme Design
3. Results and Discussion
3.1. Tool–Chip Interface Temperature
3.2. The Effect of the Tool–Chip Interface Temperature
3.2.1. The Tool Wear Morphology
3.2.2. The Effect of the Tool–Chip Interface Temperature on the VB
3.2.3. The Wear Mechanism
4. Conclusions
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
Glossary
Symbol | Meaning | Unit |
v | Cutting speed | m/min |
f | Feed rate | mm/rev |
L | Milling length | m |
ap | Cutting depth | mm |
ae | Cutting width | mm |
VB | Wear land width | μm |
Tint | Tool–chip interface temperature | °C |
F | Cutting force | N |
φc | Shear angle | ° |
Lt | Tool–chip contact length | mm |
vs | Velocity at shear plane | m/min |
vc | Velocity at rake face | m/min |
αr | Rake angle | ° |
h | Instantaneous chip thickness | mm |
qt | Heat production at shear face | J |
qf | Heat production at rake face | J |
θ | Tool rotation angle | ° |
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Si | Fe | Cu | Mg | Mn | Zn | Ni | Sn | Al |
---|---|---|---|---|---|---|---|---|
9.6–12 | <1.3 | 1.5–3.5 | <0.3 | <0.5 | <1.0 | <0.5 | ≤0.3 | others |
Material Parameter | Workpiece | Tool |
---|---|---|
Density/kg·m−3 | 2.67 × 103 | 15 × 103 |
Young’s modulus/GPa | 76 | 800 |
Poisson’s ratio | 0.33 | 0.2 |
Specific heat/J·kg−1·K−1 | 962 | 200 |
Thermal conductivity/W·m−1·K−1 | 92.6 | 46 |
Expansion coefficient/K−1 | 2.06 × 10−5 | 4.7 × 10−6 |
Cutting Parameters | Value |
---|---|
Cutting speed/(m/min) | 300~1200 |
Feed/(mm/rev) | 0.03~0.11 |
Cutting width/mm | 3 |
Cutting depth/mm | 0.5 |
Milling length/m | 0~40 |
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Meng, X.; Lin, Y.; Mi, S.; Zhang, P. The Study of Tool Wear Mechanism Considering the Tool–Chip Interface Temperature during Milling of Aluminum Alloy. Lubricants 2023, 11, 471. https://doi.org/10.3390/lubricants11110471
Meng X, Lin Y, Mi S, Zhang P. The Study of Tool Wear Mechanism Considering the Tool–Chip Interface Temperature during Milling of Aluminum Alloy. Lubricants. 2023; 11(11):471. https://doi.org/10.3390/lubricants11110471
Chicago/Turabian StyleMeng, Xinxin, Youxi Lin, Shaowei Mi, and Pengyu Zhang. 2023. "The Study of Tool Wear Mechanism Considering the Tool–Chip Interface Temperature during Milling of Aluminum Alloy" Lubricants 11, no. 11: 471. https://doi.org/10.3390/lubricants11110471