硬质合金刀具车削γ-TiAl合金的失效研究
|
摘要
用YG8硬质合金刀具在不同切削参数下车削γ-Ti Al合金,通过观察刀具失效形貌和测定切削区域的元素成分,分析了切削参数对刀具失效的影响规律,并讨论了不同切削参数下刀具失效机理。结果表明:YG8硬质合金刀具车削γ-Ti Al合金主要有磨损和破损两种失效形式;刀具磨损均以粘结磨损为主,同时会有一定程度的扩散磨损和氧化磨损,氧化磨损和扩散磨损会随着切削参数的提高而加重,导致刀具寿命降低;切削参数过大会导致刀具在极短切削时间内发生破损,同时刀具磨损也会导致刀具在稳定切削一段时间后发生破损。
The turning experiments of γ-Ti Al with YG8 carbide tools under different cutting parameters are conducted. By observing the tool failure morphology and determining the element composition of the cutting area,the influence of cutting parameters on tool failure is analyzed,and the mechanism of tool failure under different cutting parameters is discussed. The results show that two main kinds of failure modes of YG8 carbide tool when turning γ-Ti Al alloy are wear and brea kage. The tool wear is mainly bonded by adhesive wear,at the same time,there exist a certain degree of diffusion wear and oxidation wear. The oxidation wear and diffusion wear will increase with the increase of the cutting parameters,which leads to the reducing of tool life. Tool large cutting parameters lead to the breakage of the cutting tool in the very short cutting time,and the tool wear will also cause the breakage of the cutting tool after stable cutting for a period of time.
The turning experiments of γ-Ti Al with YG8 carbide tools under different cutting parameters are conducted. By observing the tool failure morphology and determining the element composition of the cutting area,the influence of cutting parameters on tool failure is analyzed,and the mechanism of tool failure under different cutting parameters is discussed. The results show that two main kinds of failure modes of YG8 carbide tool when turning γ-Ti Al alloy are wear and brea kage. The tool wear is mainly bonded by adhesive wear,at the same time,there exist a certain degree of diffusion wear and oxidation wear. The oxidation wear and diffusion wear will increase with the increase of the cutting parameters,which leads to the reducing of tool life. Tool large cutting parameters lead to the breakage of the cutting tool in the very short cutting time,and the tool wear will also cause the breakage of the cutting tool after stable cutting for a period of time.
引文
[1]汪大成.钛铝合金(Ti Al)应用现状及发展趋势[J].中国航空报,2012(7):1-2.
[2]马晓迪.Ti2Al Nb金属间化合物铣削加工性研究[D].南京:南京航空航天大学,2016.
[3]Chen G,Peng Y B,Zheng G.Polysynthetic twinned Ti Al single crystals for high-temperature applications[J].Nature Materials,2016,15(8):876-881.
[4]Wang J G,Zhang L C,Chen G L,et al.Deformation-inducedγ-α2 phase transformation in a hot-forged Ti-45Al-10Nb alloy[J].Materials Science and Engineering:A,1997,240(4):547-557.
[5]Bewlay B P,Weimer M,Kelly T,et al.The science,technology,and implementation of Ti Al alloys in commercial aircraft engines[J].MRS Proceedings,2013,1516:49-58.
[6]Johnson D R,Inui H,Yamaguchi M.Directional solidification and microstructural control of the Ti Al/Ti3Al lamellar microstructure in Ti Al-Si alloys[J].Acta Materialia,1996,44(6):2523-2535.
[7]Jung I S,Wee D M,Kumar K S.Lamellar boundary alignment of DS-processed Ti Al-W alloys by a solidification procedure[J].Metals&Materials International,2007,13(6):455-462.
[8]Mantle A L,Aspinwall D K.Surface integrity of a high speed milled gamma titanium aluminide[J].Journal of Materials Processing Technology,2001,118(1-3):143-150.
[9]Hood R,Aspinwall D K,Mantle A L.Workpiece surface integrity when slot millingγ-Ti Al intermetallic alloy[J].CIRPAnnals-Manufacturing Technology,2014,63(1):53-56.
[10]Aspinwall D K,Mantle A L,Chan W K,et al.Cutting temperatures when ball nose end millingγ-Ti Al intermetallic alloys[J].CIRP Annals-Manufacturing Technology,2013,62(1):75-78.
[11]Aspinwall D K,Dewes R C,Mantle A L.The machining ofγ-Ti Al intermetallic alloys[J].CIRP Annals-Manufacturing Technology,2005,54(1):99-104.
[12]Hood R,Aspinwall D K,Sage C,et al.High speed ball nose end milling ofγ-Ti Al alloys[J].Intermetallics,2013,32:284-291.
[13]Beranoagirre A,Olvera D,Lopez de Lacalle L N.Milling of gamma titanium aluminium alloys[J].International Journal of Advanced Manufacturing Technology,2012,62(1-4):83-88.
[14]周丽.Ti Al金属间化合物铣削加工实验与有限元模拟[J].金属学报,2017,53(4):505-511.
[15]马英石.钛铝金属间化合物铣削加工试验研究[J].工具技术,2016,50(3):61-65.
[16]Aspinwall D K,Mantle A L.Surface integrity and fatigue life of turned gamma titanium aluminide[J].Journal of Materials Processing Technology,1997,72(3):413-420.
[2]马晓迪.Ti2Al Nb金属间化合物铣削加工性研究[D].南京:南京航空航天大学,2016.
[3]Chen G,Peng Y B,Zheng G.Polysynthetic twinned Ti Al single crystals for high-temperature applications[J].Nature Materials,2016,15(8):876-881.
[4]Wang J G,Zhang L C,Chen G L,et al.Deformation-inducedγ-α2 phase transformation in a hot-forged Ti-45Al-10Nb alloy[J].Materials Science and Engineering:A,1997,240(4):547-557.
[5]Bewlay B P,Weimer M,Kelly T,et al.The science,technology,and implementation of Ti Al alloys in commercial aircraft engines[J].MRS Proceedings,2013,1516:49-58.
[6]Johnson D R,Inui H,Yamaguchi M.Directional solidification and microstructural control of the Ti Al/Ti3Al lamellar microstructure in Ti Al-Si alloys[J].Acta Materialia,1996,44(6):2523-2535.
[7]Jung I S,Wee D M,Kumar K S.Lamellar boundary alignment of DS-processed Ti Al-W alloys by a solidification procedure[J].Metals&Materials International,2007,13(6):455-462.
[8]Mantle A L,Aspinwall D K.Surface integrity of a high speed milled gamma titanium aluminide[J].Journal of Materials Processing Technology,2001,118(1-3):143-150.
[9]Hood R,Aspinwall D K,Mantle A L.Workpiece surface integrity when slot millingγ-Ti Al intermetallic alloy[J].CIRPAnnals-Manufacturing Technology,2014,63(1):53-56.
[10]Aspinwall D K,Mantle A L,Chan W K,et al.Cutting temperatures when ball nose end millingγ-Ti Al intermetallic alloys[J].CIRP Annals-Manufacturing Technology,2013,62(1):75-78.
[11]Aspinwall D K,Dewes R C,Mantle A L.The machining ofγ-Ti Al intermetallic alloys[J].CIRP Annals-Manufacturing Technology,2005,54(1):99-104.
[12]Hood R,Aspinwall D K,Sage C,et al.High speed ball nose end milling ofγ-Ti Al alloys[J].Intermetallics,2013,32:284-291.
[13]Beranoagirre A,Olvera D,Lopez de Lacalle L N.Milling of gamma titanium aluminium alloys[J].International Journal of Advanced Manufacturing Technology,2012,62(1-4):83-88.
[14]周丽.Ti Al金属间化合物铣削加工实验与有限元模拟[J].金属学报,2017,53(4):505-511.
[15]马英石.钛铝金属间化合物铣削加工试验研究[J].工具技术,2016,50(3):61-65.
[16]Aspinwall D K,Mantle A L.Surface integrity and fatigue life of turned gamma titanium aluminide[J].Journal of Materials Processing Technology,1997,72(3):413-420.