α/β-SiAlON陶瓷刀具高速铣削GH4169性能与表面完整性

doi:10.3969/j.issn.1004-132X.2026.10.023

摘要/Abstract

摘要：

利用微波烧结技术制备了可转位带槽形α/β-SiAlON陶瓷刀具，系统研究了微波烧结的复杂刃形SiAlON陶瓷刀具高速干切削镍基高温合金GH4169的切削性能、失效机理和加工表面完整性。研究结果表明：微波烧结的复杂刃形α/β-SiAlON陶瓷刀具寿命随铣削速度先增长后缩短，铣削深度对刀具寿命影响不明显，可转位复杂刃形α/β-SiAlON陶瓷刀具更适合高速大切深的粗加工，最优切削参数为铣削速度800 m/min、铣削深度1.5 mm、每齿进给量0.12 mm；在不同切削参数下，黏结磨损是造成SiAlON陶瓷刀具失效的主要原因；加工表面粗糙度随着铣削速度的提高而增大；加工表面硬化程度随着铣削速度的提高（600~1000 m/min）由177%增大至221%，随铣削深度的变化较小，介于180%~190%；硬化深度随着铣削速度和铣削深度的增大变化均不明显，介于240~300 μm。

关键词: 陶瓷刀具, SiAlON陶瓷, 微波烧结, 切削性能, GH4169高温合金

Abstract:

A type of replaceable α/β-SiAlON ceramic cutting tool with chip-breaking grooves was fabricated by microwave sintering technology. The cutting performance， failure mechanism and surface integrity of the complex-edge-shaped SiAlON ceramic cutting tools during high-speed dry cutting of nickel-based superalloy GH4169 were systematically investigated. The results showed that the service life of the microwave-sintered complex-edge-shaped α/β-SiAlON ceramic cutting tools increased initially and then decreased with increasing cutting speed， while the cutting depth had no significant effect on tool life. The replaceable complex-edge-shaped α/β-SiAlON ceramic cutting tools are more suitable for high-speed and deep-cutting rough processing. The optimal cutting parameters are a cutting speed of 800 m/min， a cutting depth of 1.5 mm， and a feed rate of 0.12 mm per tooth. Under different cutting parameters， bond wear is the main cause of failure of the SiAlON ceramic cutting tools. The surface roughness increased with the increase of cutting speed， and the average surface hardening degree increased from 177 % to 221% when the cutting speed ranged from 600 to 1000 m/min. The variation in surface hardening depth was not obvious with increasing cutting speed and cutting depth， ranging from 240 to 300 μm.

Key words: ceramic tool, SiAlON ceramic, microwave sintering, cutting performance, GH4169 superalloy

中图分类号:

TG711

王晓沁, 殷增斌, 唐海权, 洪东波, 袁军堂. α/β-SiAlON陶瓷刀具高速铣削GH4169性能与表面完整性[J]. 中国机械工程, 2026, 37(10): 2603-2609.

WANG Xiaoqin, YIN Zengbin, TANG Haiquan, HONG Dongbo, YUAN Juntang. Performance and Surface Integrity of High-speed Milling of GH4169 with α/β-SiAlON Ceramic Tools[J]. China Mechanical Engineering, 2026, 37(10): 2603-2609.

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链接本文: https://www.cmemo.org.cn/CN/10.3969/j.issn.1004-132X.2026.10.023

https://www.cmemo.org.cn/CN/Y2026/V37/I10/2603

图/表 17

图1 切削试验图和SiAlON陶瓷刀具

Fig.1 Cutting test diagram and SiAlON ceramic cutting tools

图2 切削参数对SiAlON陶瓷刀具面铣高温合金GH4169切削力的影响规律

Fig.2 The influence of cutting parameters on the cutting force of SiAlON ceramic cutting tools during face milling of the high-temperature alloy GH4169

图3 不同铣削深度下切屑的宏观形貌以及剪切面和自由面的SEM微观形貌

Fig.3 The macroscopic morphology of the chips under different milling depth and SEM microscopic morphology of the shear surfaces and free surfaces

图4 不同铣削速度下切屑的宏观形貌以及剪切面和自由面的SEM微观形貌

Fig.4 The macroscopic morphology of the chips under different milling speed and SEM microscopic morphology of the shear surfaces and free surfaces

图5 不同铣削深度下复杂刃形α/β-SiAlON陶瓷刀片刀具寿命

Fig.5 Tool life of complex-edge α/β-SiAlON ceramic cutting tools under different milling depth

图6 不同铣削深度复杂刃形α/β-SiAlON陶瓷刀片磨损

Fig.6 Wear diagrams of complex-shaped α/β-SiAlON ceramic cutting tools after machining at different milling depths

图7 不同铣削深度复杂刃形α/β-SiAlON陶瓷刀片SEM形貌

Fig.7 SEM morphologies of complex-profiled α/β-SiAlON ceramic inserts under different milling depths

图8 不同铣削速度下复杂刃形α/β-SiAlON陶瓷刀具寿命曲线

Fig.8 Life curves of complex-edge α/β-SiAlON ceramic cutting tools under different milling speeds

图9 不同铣削速度复杂刃形α/β-SiAlON陶瓷刀片磨损

Fig.9 Wear diagrams of complex-shaped α/β-SiAlON ceramic cutting tools after machining at different milling speeds

图10 不同铣削速度下复杂刃形α/β-SiAlON陶瓷刀片SEM形貌

Fig.10 SEM morphologies of complex-profiled α/β- SiAlON ceramic inserts under different milling speeds

图11 不同工况下加工表面三维形貌

Fig.11 Three-dimensional surface topography under different working conditions

图12 不同铣削深度下的工件表面粗糙度

Fig.12 Surface roughness vs. milling depth

图13 不同铣削速度下的工件表面粗糙度

Fig.13 Surface roughness vs. milling speed

图14 不同工况下加工表面SEM形貌

Fig.14 SEM morphologies of machined surfaces under different working conditions

图15 铣削速度和铣削深度对表面硬化程度的影响

Fig.15 Influence of milling speed and milling depth on the degree of surface hardening

图16 不同铣削深度工件表层硬化测试结果

Fig.16 Test results of surface hardening of workpieces at different milling depths

图17 不同铣削速度工件表层硬化测试结果

Fig.17 Test results of surface hardening of workpieces at different milling speeds

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