Journal
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
Volume -, Issue -, Pages -Publisher
SPRINGER LONDON LTD
DOI: 10.1007/s00170-023-12533-4
Keywords
Machinability; Titanium alloy; Nickel-based high-temperature alloy; Cutting mechanism; Surface integrity
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Titanium alloy and nickel-based high-temperature alloy have exceptional mechanical properties and are extensively used in aero-engine blades. However, their poor machinability is due to high material strength and low thermal conductivity, resulting in technical difficulties during the machining process. This study investigates the material properties and processing mechanisms of these alloys, focusing on recent advancements in cutting dynamics, chip formation mechanisms, tool wear, and surface integrity. The importance of rational setting of cutting parameters and machining conditions on machining integrity is discussed and future trends in high surface integrity machining of these alloys are predicted.
The exceptional mechanical properties of titanium alloy and nickel-based high-temperature alloy make them extensively utilized in aero-engine blades. The machinability of these materials is poor due to their high material strength and low thermal conductivity which lead to technical difficulties such as cutting heat accumulation, tool wear, and poor surface quality during the machining process. This study commences with an investigation into the material properties and processing mechanisms of titanium alloy and nickel-based high-temperature alloy, with a particular focus on recent advancements in cutting dynamics, chip formation mechanisms, tool wear, and surface integrity. The important effect of reasonable setting of cutting parameters and machining conditions on the machining integrity is discussed. The future trend for high surface integrity machining of titanium alloy and nickel-based high-temperature alloy blade is finally predicted.
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