Thermoplastic carbon fiber laminates tuaj yeem drilled siv ultra-ceev pub txoj kev yav tom ntej.
Aerospace thiab automotive manufacturing yog ob qho kev lag luam uas zoo tshaj plaws cuam tshuam txog kev muaj peev xwm thiab kev ua tiav ntawm cov khoom siv hauv kev lag luam niaj hnub, suav nrog suav tsis txheeb technologies thiab cov ntaub ntawv. Cov pa roj carbon fiber ntau thiab cov ntaub ntawv sib xyaw yog tam sim no yog cov khoom siv tshiab nrov heev hauv kev tsim khoom, tau txais cov ntawv thov zoo vim lawv cov khoom siv kho tshuab zoo. Hauv kev siv cov tswv yim, cov pa roj carbon fiber ntau yog cov khoom siv txhawb zog uas tuaj yeem ua ke nrog cov khoom sib txawv matrix, tso cai rau nws ua tiav rau hauv ntau yam duab ntawm cov khoom lag luam, qee qhov tuaj yeem siv rau hauv aerospace thiab automotive manufacturing sectors.
Tam sim no, cov khoom siv thermosetting carbon fiber ntau, nrog rau cov thermoplastic carbon fiber ntau zoo dua yav tom ntej, raug suav tias yog cov khoom siv sib xyaw ua haujlwm siab uas nyuaj dhau. Txawm li cas los xij, kev ua cov pa roj carbon fiber ntau rau hauv cov khoom tiav ua rau muaj kev nyuaj siab, yuav tsum muaj kev sib koom tes ntawm ntau yam khoom siv thiab tshuab. Cov haujlwm tseem ceeb xws li drilling, txiav, thiab hollowing yog qhov tseem ceeb. Txawm li cas los xij, ib qho yuav tsum tsis txhob kwv yees cov kev ua haujlwm yooj yim no, vim tias kev ua haujlwm machining tseem cuam tshuam nrog kev ua haujlwm ntawm cov khoom siv fiber ntau. Tsab ntawv xov xwm no hais txog cov ntaub ntawv thoob ntiaj teb cov kws tshawb fawb los qhia cov txheej txheem ultra-ceev pub drilling thiab sib piv nrog ob txoj kev ua: ultrasonic vibration thiab abrasive dej dav hlau txiav.
Peb Txoj Kev Drilling rau Thermoplastic Carbon Fiber (CF/PA6) Laminates
1.Ultra-Fast Feed Drilling (UFFD): Txiav cov cua sov thiab kev sib txhuam cua sov tuaj yeem ua rau lub melting ntawm cov thermoplastic matrix, cuam tshuam rau drilling efficiency thiab cov txiaj ntsig. Txhawm rau kawm txog qhov tshwm sim tiag tiag ntawm txoj kev pub noj nrawm nrawm, cov thermoplastic carbon fiber laminate yog tsau, thiab pub ceev ntawm 3000, 5000, thiab 7000 mm / min raug xaiv, siv peb lub ntsiab lus dynamometer rau kev ntsuas.
2. Ultrasonic Vibration Drilling (UVD): Lub piezoelectric siv lead ua oscillator tau nruab rau ntawm cov khoom siv los muab qhov zaus ntawm 70 kHz, tso cai rau kev soj ntsuam ntawm qhov tseeb ntawm ultrasonic kev co thaum drilling rau hauv thermoplastic carbon fiber laminates.
3.Abrasive Water Jet Drilling (AWJ): Abrasive dej dav hlau machining yog tam sim no txoj hauv kev tseem ceeb rau kev txiav cov khoom siv thermosetting carbon fiber. Lub dav hlau dej trajectory yog tsim nyob rau hauv ib lub voj voog, thiab ib tug tej yam dej siab yog siv rau laminate rau hauv lub thermoplastic carbon fiber laminate, nrog rau cov teebmeem tiag tiag.
Ua qauv qhia txog qhov tshwm sim tiag tiag ntawm Ultra-Fast Feed Drilling
1.Kev sib piv ntawm Drilling Effects: Thaum muab piv rau kev pub ceev ntawm 3000 mm / min nrog qis pub ceev ntawm 50 mm / min, qhov qub ua tiav kev ua tiav sai dua, tshem tawm tsuas yog me me ntawm cov chips, thiab tsis muaj burrs nyob ze ntawm lub qhov drilled. Nyob rau hauv sib piv, qhov tom kawg qhia tau hais tias deformation tseem ceeb thaum lub laum me ntsis nkag mus rau pem hauv ntej laminate, nrog ib tug loj npaum li cas ntawm chip residue thiab crown-zoo li burrs nyob ib ncig ntawm lub qhov. Lub ncov thrust ntawm 3000 mm / min yog rau lub sijhawm ntawm 50 mm / min, mus txog ze li ntawm 22N, thaum lub sijhawm drilling tsuas yog 1/60 ntawm qhov kawg, ua rau muaj txiaj ntsig zoo dua thiab txhim kho drilling zoo.
2.Delamination thiab Burr Situation: Kev soj ntsuam siv 3D ntsuas lub tshuab ntsuas pom pom tias delamination thiab burrs tshwm sim nyob rau hauv kev sib raug zoo rau kev nkag mus drilling, nrog 20 μm ua txoj kab sib faib. Thaum pub ceev yog 3000 mm/min, tsis muaj delamination raug soj ntsuam txawm hais tias tus spindle ceev. Txawm li cas los xij, thaum pub ceev tshaj 3000 mm / min thiab spindle ceev tshaj 20,000 min⁻¹, qhov ntim ntawm delamination nce nrog qhov nce ntawm cov nqi pub. Qhov no yog ntaus nqi rau lub zog ntau dua generated ntawm siab feed speeds.
Tsis tas li ntawd, raws li lub spindle ceev nce, lub ntim ntawm burrs uas tshwm sim txo. Los ntawm ntau qhov kev sim, nws tau pom tias ntawm kev pub ceev ntawm 3000 mm / min thiab spindle ceev ntawm 20,000 min⁻¹, tsis muaj teeb meem delamination, thaum tseem tuav lub ntim me me. Zuag qhia tag nrho, qhov no ua rau kev ua haujlwm zoo dua drilling.
3.Kev sib piv nrog rau Lwm Txoj Kev Drilling: Txhawm rau kom zoo dua piv cov txiaj ntsig drilling, cov duab microscopic ntawm txhua txoj kev drilling tau pom nyob rau hauv qhov kev sim. Nyob rau hauv lub ultra-ceev feed drilling (UFFD), txhua txheej ntawm carbon fiber yog kom meej meej pom nyob rau hauv lub qhov phab ntsa, whereas nyob rau hauv ultrasonic vibration drilling (UVD) thiab abrasive dej dav hlau drilling (AWJ), lub qhov phab ntsa yog them los ntawm ib tug melted matrix. , ua rau qhov muag plooj ntau dua. Thaum cov duab microscopic tau nthuav dav, AWJ lub qhov phab ntsa qhia qhov sib txawv ntawm cov nylon fibers, thaum cov npoo ntawm lub qhov los ntawm UFFD pom zoo zoo. Raws li kev sib piv ntawm qhov zoo ntawm qhov chaw zoo, cov duab raug, thiab lub sijhawm ua haujlwm, ultra-ceev feed drilling (UFFD) ua pov thawj los ua ib qho kev cog lus zoo dua rau cov thermoplastic carbon fiber laminates.
Drilling qhov nyob rau hauv cov thermoplastic carbon fiber panels yog ib qho tseem ceeb ua txoj kev, ua kom ruaj khov kev sib txuas nrog rau lwm yam kev lag luam Cheebtsam thiab txhim kho lawv cov nqi coj mus muag. Tam sim no, kev siv dav dav ntawm thermoplastic carbon fiber composites tseem nyob rau theem pib, thiab kev npaj ntawm unidirectional thermoplastic carbon fiber composites ua rau muaj teeb meem loj, uas txwv tsis pub siv cov ntaub ntawv no txij thaum pib. Raws li ib tug ntawm ob peb lub tuam txhab nyob rau hauv Tuam Tshoj muaj peev xwm ntawm nws tus kheej ua tsis tu ncua carbon fiber thermoplastic composite unidirectional tapes, Zhishang Tshiab Cov ntaub ntawv ntseeg hais tias txoj kev loj hlob ntawm thermoplastic carbon fibers yuav tsum pib los ntawm ib tug lub hauv paus theem, thiab kev vam meej technology yog lub hauv paus ntsiab lus los daws cov teeb meem uas twb muaj lawm.
