Mokhoa oa ho khetha Setsi sa Machining sa 5-Axis se nepahetseng bakeng sa likarolo tsa Aerospace
PFT, Shenzhen
Kakaretso
Morero: Ho theha moralo oa liqeto o ka hlahisoang hape bakeng sa ho khetha litsi tsa machining tsa 5-axis tse inehetseng ho likarolo tsa boleng bo holimo tsa sefofane. Mokhoa: Moralo oa mekhoa e tsoakiloeng o kopanyang li-logs tsa tlhahiso ea 2020-2024 ho tsoa ho limela tse 'ne tsa Tier-1 (n = 2 847 000 lihora tsa machining), liteko tsa ho itšeha ka li-coupon tsa Ti-6Al-4V le Al-7075, le mohlala oa liqeto tse ngata (MCDM) o kopanyang tlhahlobo ea TOPSIS-weight. Liphello: Matla a spindle ≥ 45 kW, ka nako e le 'ngoe 5-axis contouring accuracy ≤ ± 6 µm, le puseletso ea phoso ea volumetric e thehiloeng ho laser-tracker volumetric compensation (LT-VEC) e hlahile e le tse tharo tse matla ka ho fetisisa tse hlalosang karolo ea conformance (R² = 0.82). Litsi tse nang le litafole tsa ho sekama tsa mofuta oa fereko li fokolitse nako e sa hlahiseng tlhahiso ea sebaka ka 31% ha e bapisoa le tlhophiso ea lihlooho tse swivelling. Palo ea lisebelisoa tsa MCDM ≥ 0.78 e amanang le phokotso ea 22% ea sekhahla sa sekhechana. Qetello: Protocol ea mekhahlelo e meraro-(1) benchmarking ea tekheniki, (2) boemo ba MCDM, (3) netefatso e tsamaisoang ke mofofisi-e fana ka phokotso e kholo ea litheko tsa ho se boleng ha e ntse e boloka tumellano le AS9100 Rev D.
Morero: Ho theha moralo oa liqeto o ka hlahisoang hape bakeng sa ho khetha litsi tsa machining tsa 5-axis tse inehetseng ho likarolo tsa boleng bo holimo tsa sefofane. Mokhoa: Moralo oa mekhoa e tsoakiloeng o kopanyang li-logs tsa tlhahiso ea 2020-2024 ho tsoa ho limela tse 'ne tsa Tier-1 (n = 2 847 000 lihora tsa machining), liteko tsa ho itšeha ka li-coupon tsa Ti-6Al-4V le Al-7075, le mohlala oa liqeto tse ngata (MCDM) o kopanyang tlhahlobo ea TOPSIS-weight. Liphello: Matla a spindle ≥ 45 kW, ka nako e le 'ngoe 5-axis contouring accuracy ≤ ± 6 µm, le puseletso ea phoso ea volumetric e thehiloeng ho laser-tracker volumetric compensation (LT-VEC) e hlahile e le tse tharo tse matla ka ho fetisisa tse hlalosang karolo ea conformance (R² = 0.82). Litsi tse nang le litafole tsa ho sekama tsa mofuta oa fereko li fokolitse nako e sa hlahiseng tlhahiso ea sebaka ka 31% ha e bapisoa le tlhophiso ea lihlooho tse swivelling. Palo ea lisebelisoa tsa MCDM ≥ 0.78 e amanang le phokotso ea 22% ea sekhahla sa sekhechana. Qetello: Protocol ea mekhahlelo e meraro-(1) benchmarking ea tekheniki, (2) boemo ba MCDM, (3) netefatso e tsamaisoang ke mofofisi-e fana ka phokotso e kholo ea litheko tsa ho se boleng ha e ntse e boloka tumellano le AS9100 Rev D.
1 Selelekela
Lekala la lefats'e la lifofane le bolela esale pele sekhahla sa kholo ea selemo le selemo sa 3.4 % tlhahisong ea airframe ho fihlela 2030, e leng ho matlafatsa tlhokahalo ea sebopeho sa nete ea titanium le likarolo tsa sebopeho sa aluminium ka mamello ea geometri e ka tlase ho 10 µm. Litsi tsa machining tsa li-axis tse hlano li fetohile thekenoloji e ka sehloohong, leha ho le joalo ho ba sieo ha melao-motheo ea khetho ho fella ka hore 18-34 % e sebelisoe ka tlase le 9 % ea likhahla tse tloaelehileng ho pholletsa le lisebelisoa tse entsoeng lipatlisiso. Boithuto bona bo sebetsana le lekhalo la tsebo ka ho theha maemo a nepahetseng a sepheo, a tsamaisoang ke data bakeng sa liqeto tsa theko ea mochini.
Lekala la lefats'e la lifofane le bolela esale pele sekhahla sa kholo ea selemo le selemo sa 3.4 % tlhahisong ea airframe ho fihlela 2030, e leng ho matlafatsa tlhokahalo ea sebopeho sa nete ea titanium le likarolo tsa sebopeho sa aluminium ka mamello ea geometri e ka tlase ho 10 µm. Litsi tsa machining tsa li-axis tse hlano li fetohile thekenoloji e ka sehloohong, leha ho le joalo ho ba sieo ha melao-motheo ea khetho ho fella ka hore 18-34 % e sebelisoe ka tlase le 9 % ea likhahla tse tloaelehileng ho pholletsa le lisebelisoa tse entsoeng lipatlisiso. Boithuto bona bo sebetsana le lekhalo la tsebo ka ho theha maemo a nepahetseng a sepheo, a tsamaisoang ke data bakeng sa liqeto tsa theko ea mochini.
2 Mokhoa
2.1 Kakaretso ea Moralo
Ho ile ha amoheloa moralo oa tlhaloso ea mekhahlelo e meraro: (1) merafo ea data ea morao-rao, (2) liteko tse laoloang tsa machining, (3) kaho ea MCDM le ho netefatsa.
Ho ile ha amoheloa moralo oa tlhaloso ea mekhahlelo e meraro: (1) merafo ea data ea morao-rao, (2) liteko tse laoloang tsa machining, (3) kaho ea MCDM le ho netefatsa.
2.2 Mehloli ea Boitsebiso
- Lintlha tsa tlhahiso: Lintlha tsa MES tse tsoang ho limela tse 'nè, tse sa tsejoeng tlas'a melaoana ea ISO/IEC 27001.
- Liteko tsa ho khaola: 120 Ti-6Al-4V le 120 Al-7075 likheo tsa prismatic, 100 mm × 100 mm × 25 mm, tse nkiloeng ho tloha sehlopheng se le seng sa ho qhibiliha ho fokotsa ho fapana ha lintho.
- Thepa ea mochini: Litsi tse 18 tse fumanehang khoebong (mofuta oa fereko, hlooho ea swivel, le hybrid kinematics) tse nang le lilemo tsa kaho 2018-2023.
2.3 Tlhophiso ea Teko
Liteko tsohle li sebelisitse lisebelisoa tse tšoanang tsa Sandvik Coromant (Ø20 mm trochoidal end mill, grade GC1740) le 7 % emulsion flood coolant. Litekanyetso tsa tšebetso: vc = 90 m min⁻¹ (Ti), 350 m min⁻¹ (Al); fz = 0.15 mm leino⁻¹; ee = 0.2D. Botšepehi bo holimo bo ile ba lekanyetsoa ka interferometry ea khanya e tšoeu (Taylor Hobson CCI MP-HS).
Liteko tsohle li sebelisitse lisebelisoa tse tšoanang tsa Sandvik Coromant (Ø20 mm trochoidal end mill, grade GC1740) le 7 % emulsion flood coolant. Litekanyetso tsa tšebetso: vc = 90 m min⁻¹ (Ti), 350 m min⁻¹ (Al); fz = 0.15 mm leino⁻¹; ee = 0.2D. Botšepehi bo holimo bo ile ba lekanyetsoa ka interferometry ea khanya e tšoeu (Taylor Hobson CCI MP-HS).
2.4 Mohlala oa MCDM
Litekanyo tsa litekanyetso li nkiloe ho Shannon entropy e sebelisitsoeng ho likutu tsa tlhahiso (Letlapa la 1). TOPSIS e behile mekhoa e meng, e tiisitsoeng ke Monte-Carlo perturbation (10 000 iterations) ho hlahloba kutloisiso ea boima ba 'mele.
Litekanyo tsa litekanyetso li nkiloe ho Shannon entropy e sebelisitsoeng ho likutu tsa tlhahiso (Letlapa la 1). TOPSIS e behile mekhoa e meng, e tiisitsoeng ke Monte-Carlo perturbation (10 000 iterations) ho hlahloba kutloisiso ea boima ba 'mele.
3 Liphetho le Tlhahlobo
3.1 Lipontšo tsa Bohlokoa tsa Ts'ebetso (KPIs)
Setšoantšo sa 1 se bonts'a moeli oa Pareto oa matla a spindle khahlano le ho nepahala ha contouring; Mechini e ka har'a quadrant e kaholimo ho le letšehali e fihletsoe ≥ 98 % karolo ea tumellano. Letlapa la 2 le tlaleha li-coefficients tsa ho fokotseha: matla a spindle (β = 0.41, p <0.01), ho nepahala ha contouring (β = -0.37, p <0.01), le ho fumaneha ha LT-VEC (β = 0.28, p <0.05).
Setšoantšo sa 1 se bonts'a moeli oa Pareto oa matla a spindle khahlano le ho nepahala ha contouring; Mechini e ka har'a quadrant e kaholimo ho le letšehali e fihletsoe ≥ 98 % karolo ea tumellano. Letlapa la 2 le tlaleha li-coefficients tsa ho fokotseha: matla a spindle (β = 0.41, p <0.01), ho nepahala ha contouring (β = -0.37, p <0.01), le ho fumaneha ha LT-VEC (β = 0.28, p <0.05).
3.2 Papiso ea Tlhophiso
Litafole tsa ho thetheha tsa mofuta oa fereko li fokolitse nako e tloaelehileng ea ho sebetsa ka sebopeho ho tloha ho 3.2 min ho ea ho 2.2 min (95 % CI: 0.8-1.2 min) ha u ntse u boloka phoso ea foromo <8 µm (Setšoantšo sa 2). Mechini ea swivel-head e bonts'itse ho hoholeha ha mocheso oa 11 µm ho feta 4 h ts'ebetso e tsoelang pele ntle le haeba e na le matšeliso a sebetsang a mocheso.
Litafole tsa ho thetheha tsa mofuta oa fereko li fokolitse nako e tloaelehileng ea ho sebetsa ka sebopeho ho tloha ho 3.2 min ho ea ho 2.2 min (95 % CI: 0.8-1.2 min) ha u ntse u boloka phoso ea foromo <8 µm (Setšoantšo sa 2). Mechini ea swivel-head e bonts'itse ho hoholeha ha mocheso oa 11 µm ho feta 4 h ts'ebetso e tsoelang pele ntle le haeba e na le matšeliso a sebetsang a mocheso.
3.3 Liphetho tsa MCDM
Litsi tse fanang ka lintlha ≥ 0.78 lethathamong la lisebelisoa tsa lisebelisoa tse entsoeng li bontšitse phokotso ea 22% ea likhahla (t = 3.91, df = 16, p = 0.001). Tlhahlobo ea kutlo e senotse ± 5 % phetoho ea boima ba matla a spindle e fetotsoeng bakeng sa 11% feela ea mekhoa e meng, e tiisang ho tiea ha mohlala.
Litsi tse fanang ka lintlha ≥ 0.78 lethathamong la lisebelisoa tsa lisebelisoa tse entsoeng li bontšitse phokotso ea 22% ea likhahla (t = 3.91, df = 16, p = 0.001). Tlhahlobo ea kutlo e senotse ± 5 % phetoho ea boima ba matla a spindle e fetotsoeng bakeng sa 11% feela ea mekhoa e meng, e tiisang ho tiea ha mohlala.
4 Puisano
Bolaoli ba matla a spindle bo tsamaisana le torque e phahameng ea li-alloys tsa titanium, tse lumellanang le mohlala oa Ezugwu o thehiloeng ho matla (2022, leq. 45). Boleng bo ekelitsoeng ba LT-VEC bo bonts'a phetoho ea indasteri ea sepakapaka ho ea ho tlhahiso ea "khetlo la pele" tlasa AS9100 Rev D. Mefokolo e kenyelletsa tsepamiso ea thuto ho likarolo tsa prismatic; thin-wall turbine-blade geometries e ka 'na ea toboketsa litaba tsa boikamahanyo tse sa tšoaroeng mona. Ha e le hantle, lihlopha tse rekang thepa li lokela ho etelletsa pele melaoana ea mekhahlelo e meraro: (1) sefa likhetho ka litekanyo tsa KPI, (2) sebelisa MCDM, (3) ho netefatsa ka lebelo la likarolo tse 50.
5 Qetello
Protocol e netefalitsoeng ka lipalo e kopanyang benchmarking ea KPI, MCDM e boima ba entropy, le netefatso ea sefofane e nolofalletsa baetsi ba lifofane ho khetha litsi tsa machining tsa 5-axis tse fokotsang sekhechana ka ≥ 20 % ha li ntse li kopana le litlhoko tsa AS9100 Rev D. Mosebetsi oa ka moso o lokela ho holisa dataset ho kenyelletsa likarolo tsa CFRP le Inconel 718 le ho kenyelletsa mefuta ea litšenyehelo tsa potoloho ea bophelo.
Protocol e netefalitsoeng ka lipalo e kopanyang benchmarking ea KPI, MCDM e boima ba entropy, le netefatso ea sefofane e nolofalletsa baetsi ba lifofane ho khetha litsi tsa machining tsa 5-axis tse fokotsang sekhechana ka ≥ 20 % ha li ntse li kopana le litlhoko tsa AS9100 Rev D. Mosebetsi oa ka moso o lokela ho holisa dataset ho kenyelletsa likarolo tsa CFRP le Inconel 718 le ho kenyelletsa mefuta ea litšenyehelo tsa potoloho ea bophelo.
Nako ea poso: Jul-19-2025
