Wear Behavior of Ti(N,C)-Al2O3 Coated Cemented Carbide Tools during Milling Ti2AlNb-Based Alloy

Xiao Di Ma; Jiu Hua Xu; Wen Feng Ding; Dong Sheng Lv; Yu Can Fu

doi:10.4028/www.scientific.net/KEM.589-590.361

Paper Titles

Effect of Nano-Additives on Microstructure and Mechanical Properties of Ti(C,N)-TiB₂-WC Composite Ceramic Cutting Tool Materials
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Validity Analysis of Generalized Taylor Regression Formula by Tool Wear Test for Difficult-to-Machine Materials
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Study on Helical Groove and Circumferential Cutting Edge Machining Simulation of End Mill
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Establishment of the Low Defect Ceramic Cutting Tool Database
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Wear Behavior of Ti(N,C)-Al₂O₃ Coated Cemented Carbide Tools during Milling Ti₂AlNb-Based Alloy
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Experimental Investigation on Effects of Tool Condition on Processing Quality during Broaching 26NiCrMoV145 Supperalloy
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The Design and Finite Element Simulation Analysis of the Tool in Milling Titanium Alloys
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Kinematics Simulation and Vibration Mode Analysis of Micro Turn-Milling Machine Tool
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Research on Stress Intensity Factor of the Interface Crack in the Hard Cladding Material Structure under Mechanical Impact Load
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 589-590Wear Behavior of Ti(N,C)-Al2O3 Coated Cemented...

Wear Behavior of Ti(N,C)-Al₂O₃ Coated Cemented Carbide Tools during Milling Ti₂AlNb-Based Alloy

Abstract:

Ti2AlNb-based alloy is regarded as lightweight high-temperature structural material, which is expected to replace the nickel-base super alloy due to its low density, high elastic modulus, strength retention at elevated temperature, outstanding oxide resistance. However, these excellent properties also make Ti2AlNb to be difficult-to-cut material. In this paper, the milling experiment of Ti2AlNb alloy was carried out using Ti(N,C)-Al2O3 coated cemented carbide tools. SEM and EDS analysis was utilized to observe the worn tools to determine the tool failure modes and wear mechanisms. Tool life when milling Ti2AlNb was short and heavily dependent on the cutting parameters. During milling, coating material of the tool was separated rapidly from the base material. When the cutting speed exceeded 100m/min, serious cracks appeared on the tool surface. Thermal fatigue, adhesive and attrition were the predominant wear mechanisms of the coated tools.