Indasteri ea sepakapaka e hloka ho nepahala, ho sebetsa hantle, le ho ts'epahala ha ho etsoa lisebelisoa tse kholo, haholo tse entsoeng ka li-alloys tsa aluminium tsa boemo ba sefofane. Lisebelisoa tsena, tse nkoang e le tsa bohlokoa ka lebaka la tekanyo e phahameng ea boima ba 'mele, ho hanyetsa kutu, le ho bōpeha ha tsona, li bohlokoa ho sebopeho sa lifofane tse kang mapheo, li-fuselage le liphanele tsa letlalo. Leha ho le joalo, ho lokisa likarolo tsena ho hlahisa liqholotso tse kholo ka lebaka la boholo ba tsona, li-geometri tse rarahaneng, le ho ba le monyetla oa ho fetoha ka matla nakong ea machining a mangata a Computer Numerical Control (CNC). Phetoho e matla, e bakoang ke likhatello tse setseng, matla a ho itšeha, le litlamorao tsa mocheso, li ka lebisa ho se nepahaleng ha maemo, ho beha boleng ba karolo kotsing le ho eketsa litšenyehelo tsa tlhahiso. Ho sebetsana le liphephetso tsena, mokhoa oa ho ntlafatsa lefats'e oa mekhoa e mengata ea machining ea CNC o hlahile e le sebaka sa bohlokoa sa lipatlisiso, se ikemiselitseng ho ntlafatsa ts'ebetso ea mochini, ho fokotsa ts'ebeliso ea matla, le ho netefatsa ho nepahala ha geometri ha o ntse o ikarabella bakeng sa deformation e matla.

Sengoliloeng sena se fana ka tlhahlobo e felletseng ea mekhoa ea ntlafatso ea lefats'e bakeng sa mekhoa e mengata ea machining ea CNC, e tsepamisitse maikutlo ho maemo a maholo a sefofane. likarolo tsa aluminium. E akaretsa metheo ea theory, mehlala ea lipalo, optimization algorithms, le lits'ebetso tse sebetsang, tse tšehetsoang ke papiso e qaqileng ea mekhoa le lithuto tsa liketsahalo. Puisano e itšetlehile ka tsoelo-pele ea morao tjena CNC lisebelisoa, mahlale a lintho tse bonahalang, le computational optimization, ho tsoa ho lingoliloeng tsa thuto le mekhoa ea indasteri.

Ka morao: CNC Machining ho Aerospace

Computer Numerical Control (CNC) machining ke lejoe la motheo la tlhahiso ea lifofane, e nolofalletsang tlhahiso ea likarolo tse rarahaneng tse nang le mamello e thata. Lefapheng la sefofane, machining a CNC a sebelisetsoa ho etsa likarolo tsa sebopeho, likarolo tsa enjene, le libaka tsa aerodynamic, hangata ho tloha ho li-alloys tsa aluminium tse kang 7075, 6061, le 2024. Li-alloys tsena li khethiloe bakeng sa thepa ea tsona e ntle ea mochine, ho kenyelletsa le matla a phahameng a tensile (mohlala. ~7075 g/cm³). Leha ho le joalo, ho etsoa ha likarolo tse kholo tsa aluminium, joalo ka liphanele tsa letlalo la sefofane kapa li-spars tsa mapheo, li rarahane ka lebaka la meralo ea tsona e nang le mabota a masesaane kapa a monolithic, a tloaetseng ho fetoha tlas'a matla a machining.

Multi-process CNC chain machining e bua ka tatelano ea ts'ebetso ea machining - joalo ka ho qhekella, ho qeta, le ho phethela - e etsoang ho sesebediswa se le seng sa ho seta kapa metjhini e mengata. Ts'ebetso e 'ngoe le e' ngoe e hlahisa liphephetso tse ikhethang, ho kenyelletsa ho roala lisebelisoa, ho atolosoa ha mocheso, le phomolo e setseng ea khatello ea maikutlo, e ka bakang deformation e matla. Bakeng sa likarolo tse kholo, litlamorao tsena li atolosoa ka lebaka la linako tse atolositsoeng tsa mochini, palo e kholo ea ho tlosa thepa, le litsela tse rarahaneng tsa lisebelisoa tse hlokahalang ho fihlela geometry e lakatsehang. Mokhoa oa optimization oa lefats'e o batla ho kopanya lintlha tsena moralong o momahaneng, ho ntlafatsa litsela tsa lisebelisoa ho pholletsa le lits'ebetso tsohle ho fokotsa deformation, ho fokotsa tšebeliso ea matla, le ho ntlafatsa boleng ba bokaholimo.

Mathata a ho Etsa Likarolo tse kholo tsa Aluminium

Likarolo tse kholo tsa aluminium tsa boemo ba sefofane li hlahisa mathata a 'maloa:

1. Phetoho e Matla: Khatello e setseng e tsoang mehatong ea pele ea tlhahiso (mohlala, rolling, betloa, kapa kalafo ea mocheso) le matla a ho itšeha nakong ea machining a ka baka deformation ea elastic le polasetiki, e lebisang liphosong tsa boholo. Mehaho e nang le marako a masesaane, e tloaelehileng sebakeng sa sefofane, e kotsing haholo.

2. Li-geometri tse rarahaneng: Likarolo tsa sefofane hangata li na le libaka tse sa lefelloeng, lipokothong tse tebileng, kapa li-contours tse rarahaneng, tse hlokang mechine ea CNC ea li-multi-axis (mohlala, 5-axis) le moralo o rarahaneng oa litsela tsa lisebelisoa.

3. Katleho ea ho Tlosa Lintho: Likarolo tse kholo li hloka ho tlosoa ha thepa ea bohlokoa, ho eketsa nako ea mochini le tšebeliso ea matla. Ho ntlafatsa mekhoa ea lisebelisoa ho fokotsa nako ea potoloho ho bohlokoa.

4. Boleng ba Boemo: Likarolo tsa sepakapaka li hloka hore ho be thata ho tlase (mohlala, Ra <0.8 µm) ho netefatsa ts'ebetso ea moea le ho hanyetsa mokhathala.

5. itsetsepetse: Indasteri ea sepakapaka e tlas'a khatello ea ho fokotsa tšebeliso ea matla le litšila tsa thepa, e hlokang mekhoa e tsitsitseng ea machining.

Moetso oa optimization oa lefats'e o sebetsana le mathata ana ka ho nka ketane eohle ea mochini e le sistimi e kopaneng, ho ntlafatsa litsela tsa lisebelisoa, mekhahlelo ea ho itšeha, le tatellano ea ts'ebetso ho fokotsa deformation ha o ntse o fihlella lipheo tsa boleng le ts'ebetso.

Metheo ea Theory of Global Optimization Modeling

Phetoho e Matla ho CNC Machining

Phetoho e matla ho machining ea CNC e hlaha ka lebaka la ho hokahana ha mochini, mocheso le lintho tse bonahalang. Nakong ea machining, matla a ho itšeha a baka deformation ea elastic ka har'a sesebelisoa, athe mocheso o hlahisoang ke likhohlano le ho senyeha ha polasetiki ho baka keketseho ea mocheso. Mathata a setseng, a tlhaho ho aluminium ea boemo ba sefofane ka lebaka la ts'ebetso ea pele, a ka phomola nakong ea ho tlosoa ha thepa, e lebisang ho khopameng ho eketsehileng. Bakeng sa likarolo tse kholo, liphello tsena li kopantsoe ke ho satalla ho fokolang ha mosebetsi, haholo-holo ka mehaho e menyenyane e nang le marako.

Deformation ea workpiece e ka etsoa mohlala ho sebelisa melao-motheo e tsoang ho mechini e tiileng. Equation e laolang ea elastic deformation tlasa matla a kantle e ipapisitse le molao oa Hooke le melaoana ea tekano:

[\sigma = E \epsilon]

moo (\sigma) ke khatello ea maikutlo, (E) ke modulus ea Young ea thepa (mohlala, ~ 70 GPa bakeng sa 7075 aluminium), le (\epsilon) ke khatello ea khatello. Sebaka sa phalliso (u(x, y, z)) se laoloa ke tekano:

[ \nabla \cdot \sigma + F = 0 ]

moo (F) e emelang matla a ka ntle, joalo ka matla a ho khaola. Bakeng sa deformation e matla, litlamorao tse itšetlehileng ka nako li kenyellelitsoe ka equation of motion:

[ \rho \frac{\partial^2 u}{\partial t^2} = \nabla \cdot \sigma + F ]

moo (\rho) e leng bongata ba lintho tse bonahalang. Finite Element Analysis (FEA) e atisa ho sebelisoa ho rarolla li-equation tsena, ho khetholla mosebetsi hore e be likarolo ho kopanya deformation tlas'a meroalo e sa tšoaneng.

Multi-Process CNC Chain Machining

Multi-process CNC chain machining e kenyelletsa tatellano ea ts'ebetso, e 'ngoe le e' ngoe e na le sepheo se ikhethileng:

• Roughing: E tlosa lisebelisoa tse ngata ho bapisa sebopeho sa ho qetela, e etelletsa pele katleho ho feta ho nepahala.

• Semi-Finishing: E ntlafatsa geometry, ho leka-lekanya sekhahla sa ho tlosoa ha thepa le boleng ba bokaholimo.

• Qetella: E fihlella litekanyo tsa ho qetela le pheletso ea bokaholimo, e hlokang ho nepahala ho phahameng le ho senyeha ho fokolang.

Ts'ebetso e 'ngoe le e' ngoe e hloka litsela tse khethehileng tsa lisebelisoa, likarolo tsa ho seha (mohlala, lebelo la spindle, sekhahla sa phepelo, botebo ba sehiloeng), le ho hlophisoa ha mochini. Phephetso e ho ho hokahanya lits'ebetso tsena ho fokotsa liphoso tse ntseng li eketseha, kaha deformation ts'ebetsong e le 'ngoe e ka ata ho isa methating e latelang. Moetso oa optimization oa lefats'e o kopanya lits'ebetso tsena ka ho hlalosa ts'ebetso e kopaneng ea sepheo se ikarabellang bakeng sa deformation, katleho le boleng ho ketane eohle.

Global Optimization Framework

Moetso oa optimization oa lefats'e o ikemiselitse ho fumana sete e nepahetseng ea liparamente tsa mochini le litsela tsa lisebelisoa tse fokotsang ts'ebetso ea merero e mengata, hangata e kenyelletsa:

• Phoso ea Deformation: Ho fokotsa liphapang tse bakoang ke deformation e matla.

• Nako ea ho sebetsa: Ho fokotsa nako ea potoloho ho ntlafatsa ts'ebetso.

• Tšebeliso ea Matla: Ho fokotsa tšebeliso ea matla bakeng sa tlhahiso e tsitsitseng.

• Bokhopo bo Holimo: Ho fihlella maemo a tlase a Ra bakeng sa ts'ebetso ea aerodynamic le ea sebopeho.

Bothata ba optimization bo ka etsoa ka tsela e latelang:

[ \mots_{X} \ka ho le letšehali[ f_1(X), f_2(X), \ldts, f_n(X) \ ka ho le letona] ]

ho na le mathata:

[ g_i(X) \leq 0, \quad h_j(X) = 0]

moo (X) e emelang liqeto tse feto-fetohang (mohlala, litekanyo tsa ho seha, litsela tsa lisebelisoa), (f_i(X)) ke mesebetsi ea sepheo, (g_i(X)) ke lithibelo tsa ho se lekane (mohlala, meeli ea lisebelisoa tsa mochini), le (h_j(X)) ke litšitiso tsa tekano (mohlala, mamello ea geometri). Mekhoa e tloaelehileng ea ho rarolla bothata bona e kenyelletsa Non-Downing Sorting Genetic Algorithm II (NSGA-II), Multi-Objective Particle Swarm Optimization (MOPSO), le mokhoa oa ho etsa annealing.

Phetoho e Matla ea ho Etsa Mohlala

Mehloli ea Phetoho

Deformation e matla likarolong tse kholo tsa aluminium e tsoa mehloling e mengata:

1. Ho Seha Matla: Matla a ho sebelisana le sesebelisoa-workpiece a baka deformation ea elastic le polasetiki. Ka mohlala, ho siloa ka mahlakoreng, matla a ho khaola a ka tloha ho 100-1000 N, ho itšetlehile ka botebo ba sekhahla sa ho khaola le ho fepa.

2. Masala a Khatello: Li-alloys tsa aluminium li rua likhatello tse setseng tse tsoang ho rolling kapa kalafo ea mocheso, e phomolang nakong ea machining, e bakang ho sotha. Bakeng sa 7050-T7451 aluminium, likhatello tse setseng li ka fihla ± 100 MPa.

3. Liphello Tsa Mocheso: Mocheso oa Frictional le deformation ea polasetiki e phahamisa mocheso oa workpiece, e lebisang ho atolosoeng ha mocheso. Bakeng sa machining a lebelo le phahameng, mocheso oa sebopeho sa sesebelisoa o ka feta 200°C.

4. Ho thatafala ha Workpiece: Likarolo tse nang le marako a tšesaane li na le boima bo tlaase (mohlala, ho satalla <10^4 N / m bakeng sa poleiti ea aluminium e teteaneng ea 2 mm), ho matlafatsa deformation tlas'a mojaro.

Finite Element Models for Deformation Prediction

Finite Element Analysis (FEA) e sebelisoa haholo ho bolela esale pele deformation e matla. Sebaka sa mosebetsi se arotsoe ka mesh ea likarolo, 'me li-equations tse laolang li rarolloa ka linomoro. Bakeng sa likarolo tse kholo, letlooeng le tloaelehileng le ka ba le likarolo tse 10 ^ 5–10^6 ho nka lijeometri tse rarahaneng. Moetso oa FEA o kenyelletsa:

• Thepa ea Marang: Young's modulus, karo-karolelano ea Poisson, le matla a lihlahisoa tsa motsoako oa aluminium.

• Maemo a Moeli: Matla a ho koala le lithibelo tsa ho lokisa.

• Loading Conditions: Matla a ho itšeha ka nako e fapaneng le meroalo ea mocheso.

Mohlala o nolofalitsoeng oa FEA bakeng sa poleiti e nang le mabota a masesaane o ka hlalosoa ka tsela e latelang:

[ [K] {u} = {F}]

moo ([K]) e leng matrix a thatafalang, ({u}) ke vector ea phalliso, 'me ({F}) ke vector ea matla. Ho ikarabella bakeng sa litlamorao tse matla, mohlala o eketsoa ho:

[ [M] \frac{\partial^2 u}{\partial t^2} + [C] \frac{\partial u}{\ partial t} + [K] {u} = {F(t)} ]

moo ([M]) e leng matrix a boima, ([C]) ke matrix a mongobo, 'me ({F(t)}) ke vector ea matla e itšetlehileng ka nako.

Lithuto tsa morao-rao, tse kang tsa Ge et al. (2022), sisinya mekhoa ea mats'eliso e pheta-phetoang ho sebelisoa tekanyo ea mochini (OMM) le mefuta ea boima ba 'mele (SSMs) ho bolela esale pele le ho lokisa deformation ka nako ea nnete. Mefuta ena e ntlafatsa jiometry ea mosebetsi ka mor'a hore mochine o mong le o mong o sebetse ho ikarabella bakeng sa ho tlosoa ha thepa le liphetoho tse thata, ho finyella lintlha tse nepahetseng tsa ho bolela esale pele ho fihla ho 90.19% bakeng sa likarolo tse tšesaane tse nang le marako.

Mehlala ea Surrogate bakeng sa Ntlafatso ea Nako ea 'Nete

Ho kopanya mefuta ea FEA bakeng sa likarolo tse kholo ho bitsa chelete e ngata, hangata ho hloka lihora bakeng sa papiso e le 'ngoe. Mefuta e meng, joalo ka e ipapisitseng le Gaussian Processes kapa neural network, e fana ka mokhoa o mong o potlakileng. Mefuta ena e koetliselitsoe ho data ea ketsiso ea FEA ho bolela esale pele deformation e le ts'ebetso ea ho itšeha le litsela tsa lisebelisoa. Ka mohlala, mohlala oa Gaussian Process o ka hlalosoa e le:

[y(x) = f(x) + \epsilon ]

moo (y(x)) e leng phetoho e boletsoeng esale pele, (f(x)) e bolelang mosebetsi,' me (\epsilon) ke lerata la Gaussian. Mohlala o koetliselitsoe ho li-input-output pairs (mohlala, li-cutting parameters vs. deformation) ho etsa hore ho be le likhakanyo tsa nako ea sebele nakong ea machining.

Multi-Process CNC Chain Machining Litsela

Mekhoa ea Tsela ea Lisebelisoa

Ho rera tsela ea lisebelisoa ho bohlokoa bakeng sa ho fokotsa deformation le ho ntlafatsa ts'ebetso. Mekhoa e tloaelehileng ea machining ea CNC ea mefuta e mengata e kenyelletsa:

• Litsela tsa Sesebelisoa sa Zigzag: Litsela tse fapanyetsanang tse melang, tse loketseng libaka tse kholo tse makukuno empa tse tloaetseng ho sisinyeha ka likarolo tse tšesaane tse nang le marako.

• Litsela tsa Contour-Parallel Tool: Latela geometry ea workpiece, e loketseng ho qeta bokaholimo bo rarahaneng.

• Matla Tool Litsela: Fetola botebo ba ho itšeha le ho fetela holimo ka matla ho boloka chip load kamehla, ho fokotsa ho roala ha lisebelisoa le ho senyeha.

Litsela tsa lisebelisoa tse matla, joalo ka ha li hlalositsoe ke DATRON Dynamics, li fokotsa nako ea machining ka ho seha ho tloha tlase ho ea holimo, ho hlakola thepa ka botebo bo bong le bo bong ka nako e le 'ngoe. Mokhoa ona o fokotsa nako ea potoloho ka 30% ha e bapisoa le litsela tsa khale tsa lisebelisoa.

Kopanyo Ho Feta Mekhoa

Mechine e nang le mekhoa e mengata, litsela tsa lisebelisoa li tlameha ho hokahanngoa ho netefatsa hore ho na le tšebelisano pakeng tsa ho qhekella, ho qeta, le ho qeta. Ka mohlala, ho tlosa lintho tse ngata ka mokhoa o feteletseng ho ka baka khatello ea kelello e amang ho qetela ho nepahala. Moetso oa ntlafatso ea lefats'e o kopanya lits'ebetso tsena ka ho hlalosa leano le kopaneng la lisebelisoa le ikarabellang bakeng sa:

• Tatelano ea ho Tlosa Lintho: Ho ntlafatsa tatellano ea ho fokotsa khatello ea maikutlo ho fokotsa phomolo e setseng.

• Tšebeliso ea Tsela ea Tool: Ho netefatsa liphetoho tse bonolo pakeng tsa lits'ebetso ho qoba liphetoho tse potlakileng tsa matla a ho itšeha.

• Liphetoho tsa Fixture: Ho fetola maemo a clamping ho lefella deformation.

Mechine e Mehlano ea Axis CNC

Mechini ea li-axis tse hlano ea CNC, e nang le likarolo tse tharo tsa ho fetolela le tse peli tse potolohang, e sebelisoa haholo bakeng sa likarolo tse kholo tsa sefofane. Mechini ena e thusa mekhoa e rarahaneng ea lisebelisoa, e fokotsang tlhoko ea li-setups tse ngata. Leha ho le joalo, ba hlahisa liphephetso tse ling, joalo ka ts'ebeliso ea lisebelisoa le ho qoba ho thulana. Wang et al. (2013) e khothalelitse mokhoa oa ho ntlafatsa lisebelisoa tsa lefats'e bakeng sa machining a li-axis tse hlano, ho fokotsa ho kheloha ha geometri ka ho ntlafatsa li-angles tsa lisebelisoa sebakeng sohle.

Tsela ea lisebelisoa bakeng sa machining a li-axis tse hlano e ka emeloa e le tatellano ea libaka tsa ho khaola (CL), e 'ngoe le e' ngoe e hlalosoa ka boemo ((x, y, z)) le mokhoa ((\ theta, \phi)). Bothata ba ho ntlafatsa bo kenyelletsa ho fokotsa ho kheloha lipakeng tsa bokaholimo ba mochini le sebopeho sa jiometry, ho ipapisitse le mathata a kinematic:

[ \mots\sum_{i=1}^N \le letšehali| S_i - D_i \right|^2 ]

moo (S_i) e leng sebaka se entsoeng ka mochine, 'me (D_i) ke sebaka sa moralo.

Mokhoa oa ho ntlafatsa

Melemo e mengata ea ho ntlafatsa

Ntlafatso ea lipheo tse ngata e bohlokoa bakeng sa ho leka-lekanya lipheo tsa tlholisano ho machining ea CNC. Lipheo tse tloaelehileng li kenyelletsa:

• Ho Fokotsa Deformation: Ho fokotsa liphoso tsa dimensional tse bakoang ke deformation e matla.

• Ho eketsa Sekhahla sa ho Tlosa Lintho (MRR): Ho eketsa tlhahiso ka ho ntlafatsa sekhahla sa phepelo le botebo ba ho seha.

• Ho Fokotsa Tšebeliso ea Matla: Ho fokotsa tšebeliso ea matla, e ka ikarabellang ho feta 70% ea matla a ho etsa lits'ebetsong tsa CNC.

• Ho Fokotsa Bokhopo ba Sebaka: Ho fihlella boleng ba Ra ka tlase ho 0.8 µm bakeng sa lits'ebetso tsa sepakapaka.

Non-Downed Sorting Genetic Algorithm II (NSGA-II) le Multi-Objective Particle Swarm Optimization (MOPSO) li sebelisoa haholo ho rarolla mathata ana. NSGA-II e hlahisa karolo e ka pele ea Pareto ea litharollo tseo e seng tsa taolo, e lumellang lienjiniere ho khetha litheolelo ho latela litlhoko tse itseng. Mohlala, phuputso e entsoeng setsing sa mochini o otlolohileng sa XHK-714F e bonts'itse hore NSGA-II e ntlafalitse ts'ebetso ea ts'ebetso ka 21.0%, ea fokotsa tšebeliso ea matla ka 15.3%, 'me e theotse mahoashe a holim'a metsi ka 5.5%.

Ntlafatso ea ho Ithuta e Tebileng

Thuto e tebileng e hlahile e le sesebelisoa se matla sa ho ntlafatsa maemo a machining. Deep neural networks (DNNs) e ka etsa mohlala oa likamano tse rarahaneng lipakeng tsa ho itšeha le sephetho (mohlala, deformation, top roughness) ho sebelisa data ea nalane. Algorithm e tebileng ea liphatsa tsa lefutso e thehiloeng ho ithuta e kopantsoeng le Mokhoa oa Taelo ea Boikhethelo ka Tšoanang le Tharollo e Ntle (TOPSIS) e bontšitsoe ho feta mekhoa e tloaelehileng ka ho fetola ka matla ho lipakane tse ngata.

Mohlala oa DNN o ka hlalosoa ka tsela e latelang:

[y = f(Wx + b)]

moo (y) e leng sephetho se boletsoeng esale pele, (x) ke vector ea ho kenya (mohlala, li-parameters), (W) ke boima ba 'mele, le (b) ke vector ea leeme. Moetso ona o koetliselitsoe ho fokotsa ts'ebetso ea tahlehelo, joalo ka phoso ea squared error:

[ L = \frac{1}{N} \sum_{i=1}^N (y_i - \hat{y}_i)^2 ]

Ntlafatso e Matla Tlas'a ho se Tiisehe

Mekhoa ea ho sebetsa ea mochine e tlas'a maemo a sa tsitsang, joalo ka ho fapana ha thepa ea thepa kapa matla a lisebelisoa tsa mochine. Ntlafatso e matla e baka lipelaelo tsena ka ho rarolla:

[ \min_{X} \mathbb{E}[f(X, \xi)] ]

moo (\xi) e emelang liparamente tse sa tsitsang (mohlala, liphapano tse setseng tsa khatello), le (\ mathbb{E}) ke boleng bo lebelletsoeng. Nako ea nako ea algebra e ka sebelisoa ho bala meeli ho deformation, ho netefatsa liphetho tse tsitsitseng tsa machining.

Lisebelisoa tse sebetsang ho Aerospace

Thuto-pale: Liphanele tsa Letlalo tsa Aluminium tse Thin-Walled

Liphanele tsa letlalo tsa aluminium tse nang le marako a masesaane, tse sebelisoang lifuselage tsa lifofane, li na le tšekamelo ea ho holofala ka lebaka la ho satalla ha tsona ho tlase. Thuto ka Ge et al. (2022) e sebelisitse mokhoa oa matšeliso a iterative optimization ho phanele ea aluminium ea 7050-T7451. Mokhoa o sebelisoang mochining (OMM) ho lekola liphoso tsa mochini le litsela tse nchafalitsoeng tsa lisebelisoa khafetsa, ho fokotsa liphoso tsa botenya ka 57.4%.

Letlapa la 1: Papiso ea Mekhoa ea Matšeliso ea Deformation bakeng sa Liphanele tse Thin-Walled

Thuto-pale: Five-Axis Machining of Wing Spars

Li-spars tsa mapheo, likarolo tsa bohlokoa tsa sebopeho, li hloka machining a li-axis tse hlano tsa CNC ho fihlela li-contours tse rarahaneng. Mokhoa oa lefats'e oa ho ntlafatsa lisebelisoa o fokotsitse ho kheloha ha geometri ka 30% ha ho bapisoa le litsela tsa khale tsa lisebelisoa, joalo ka ha Wang et al. (2013).

Letlapa la 2: Papiso ea Mekhoa ea Ntlafatso ea Tsela ea Lithulusi tse hlano tsa Axis

Moshoelella le Matla a Matla

Tlhahiso e tsitsitseng ke ntho e ka sehloohong sebakeng sa lifofane, e tsamaisoang ke melao ea tikoloho le ho nahanela litšenyehelo. Machining a CNC a nka karolo e fetang 70% ea ts'ebeliso ea matla a motlakase, e leng se etsang hore ho be bonolo ho ntlafatsa matla. Mefuta e mengata ea ntlafatso ea sepheo, joalo ka e hlahisitsoeng ke Jia et al. (2023), kopanya mekhoa e mebe le ho qetela ho fokotsa tšebeliso ea matla ka 15-20% ha u ntse u boloka boleng.

Letlapa la 3: Tšebeliso ea Matla ho CNC Machining

Mekhoa le Mathata a Kamoso

Khokahano le Indasteri 4.0

Mahlale a indasteri ea 4.0, joalo ka AI, IoT, le mafahla a dijithale, a fetola machining a CNC. Mafahla a dijithale a ka etsisa ketane eohle ea machining, a bolela esale pele deformation le ho ntlafatsa litsela tsa lisebelisoa ka nako ea nnete. Mefuta e tsamaisoang ke AI, joalo ka e sebelisang meralo ea CNN-BiLSTM, e ntlafatsa ho nepahala ha ponelopele ea liphoso ka 57%.

Mathata a ho Scalability

Ho eketsa mefuta ea ntlafatso ea lefats'e ho sebetsana le likarolo tse kholo le lijeometri tse rarahaneng e ntse e le phephetso. Litšenyehelo tse phahameng tsa computational le tlhoko ea ho ikamahanya le maemo ka nako ea nnete li fokotsa ho amoheloa ha mefuta e thehiloeng ho FEA libakeng tsa tlhahiso. Mehlala ea surrogate le cloud computing li fana ka tharollo e ka bang teng empa li hloka ntlafatso e eketsehileng.

Lintho Tse Ncha

Tsoelo-pele ea li-alloys tsa aluminium, tse kang nts'etsopele ea li-alloys tse 6000 tse nang le machinability e ntlafetseng, li ka fokotsa deformation le ho roala lisebelisoa. Leha ho le joalo, ho kopanya lisebelisoa tsena mefuteng e teng ea ntlafatso ho hloka datha e ntlafalitsoeng ea thepa ea thepa.

fihlela qeto e

Mokhoa oa optimization oa lefats'e oa mekhoa e mengata ea machining ea CNC ke mokhoa oa phetoho bakeng sa ho etsa likarolo tse kholo tsa aluminium tsa boemo ba sefofane. Ka ho kopanya ponelopele e matla ea deformation, moralo oa litsela tsa lisebelisoa, le ts'ebetso ea merero e mengata, mefuta ena e ntlafatsa ho nepahala, ts'ebetso le botsitso. Tsoelo-pele ho FEA, mohlala oa motho e mong, le ntlafatso e tsamaisoang ke AI e ntlafalitse liphetho haholo, joalo ka ha ho bonts'itsoe ke liphuputso tse fihletseng phokotso ea liphoso tse fihlang ho 57% le ho boloka matla ka 20%. Leha ho le joalo, liphephetso tsa scalability ea computational le ho ikamahanya le maemo ka nako ea nnete li ntse li le teng. Patlisiso e tsoelang pele le kopanyo le thekenoloji ea Indasteri ea 4.0 e tla tsoela pele ho ntšetsa pele tšimo, ho netefatsa hore indasteri ea lifofane e kopana le litlhoko tsa eona tse thata tsa boleng le ts'ebetso.

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PTJ® e fana ka mefuta e felletseng ea Custom Precision cnc machining china ISO 9001: 2015 & JOALOKAHA-9100 pakiloeng. 3, 4 le 5-axis ka potlako e nepahetseng litšebeletso tsa machining tsa CNC ho kenyelletsa le ho sila, ho fetohela ho litlhaloso tsa bareki, Ho khona likarolo tsa tšepe le polasetiki tse nang le mamello ea +/- 0.005 mm.shoa ho lahla,lesela la tšepe 'me stampHo fana ka lipapatso, tlhahiso e felletseng, tšehetso ea tekheniki le tlhahlobo e felletseng likoloi, aerospace, hlobo le sesebelisoa, mabone a lebisitsoeng,ya kalafi, baesekele, le moreki elektronike liindasteri. Ho fana ka nako. Re bolelle hanyane ka tekanyetso ea projeke ea hau le nako e lebelletsoeng ea ho fihla. Re tla rera leano la ho fana ka lits'ebeletso tse baballang litšenyehelo ho u thusa ho fihlela sepheo sa hau, Rea u amohela ho Ikopanye le rona ( sales@pintejin.com ) ka kotloloho bakeng sa projeke ea hau e ncha.