Abstract: Ultrasonic tshuab yog dav siv hauv kev lag luam. Daim ntawv no yuav qhia cov ntsiab cai ntawm kev txiav ultrasonic, thiab muab cov piv txwv ntawm cov khoom siv hluav taws xob tshwj xeeb los sib piv cov txiaj ntsig ntawm kev txiav tshuab thiab laser txiav, thiab kawm txog kev siv tshuab ultrasonic txiav.

Word Cov ntsiab lus

Ultrasonic txiav yog lub thev naus laus zis ua haujlwm rau cov khoom siv thermoplastic. Ultrasonic tej tshuab siv ultrasonic vuam los txiav cov txua ua haujlwm. Cov khoom siv vuam ultrasonic thiab nws cov khoom sib txuas kuj yog tsim rau qhov chaw cia khoom ntau lawm. Ultrasonic txiav tshuab yog dav siv hauv kev lag luam thiab cov khoom siv hluav taws xob, tsheb, lub zog tshiab, ntim khoom, kho mob, kev ua zaub mov noj thiab lwm cov teb. Nrog txoj kev loj hlob sai ntawm kev lag luam hauv tsev, daim ntawv thov ntau yuav dav thiab dav, thiab qhov kev thov hauv khw yuav nce ntxiv. Yog li no, ultrasonic txiav tshuab muaj txoj kev loj hlob txhim kho kev cia siab.

Lub tshuab txiav

Kev txiav tshuab yog kev sib cais cov khoom siv los ntawm kev siv tshuab los ntawm kev ntsuas kub, xws li txiav, saw saw (kaw saw, wafer pom, xuab zeb kaw, thiab lwm yam), milling thiab li ntawd. Kev txiav tshuab yog ib txoj kev niaj zaus ntawm cov ntaub ntawv ntxhib thiab txiav txias. Lub ntsiab lus yog tias cov khoom siv uas yuav raug ua yog yog nyem los ntawm txiab kom hla ntawm shear deformation thiab kom txo cov txheej txheem sib cais. Cov txheej txheem ntawm kev siv tshuab txiav yuav raug ntxig faib ua peb theem sib law liag: 1. elastic deformation theem; 2. yas deformation theem; 3. Swb pob theem

· Laser txiav

3.1 Ntsiab Cai ntawm kev txiav laser

Laser txiav siv lub siab ua hluav taws xob-ceev-ceev laser nqaj los ua kom pom qhov chaw ua haujlwm, cua sov rau cov khoom siv rau ntau txhiab mus rau kaum ntawm Celsius hauv lub sijhawm luv luv, cia cov khoom siv ua kom tsis haum rau kom yaj sai, vaporize, ablate, lossis hlawv, thaum siv cov nqaj Cov pa hluav taws xob nrawm nrawm tawm ntawm cov khoom siv nchuav, los yog cov khoom siv vaporized dhau deb ntawm txoj kab txiav, thiaj li txiav cov haujlwm ua haujlwm kom ua tiav lub hom phiaj ntawm kev txiav cov khoom. Laser txiav yog ib qho ntawm txoj kev txiav kub.

3.2 Laser txiav nta:

Raws li cov txheej txheem tshiab ua tiav, kev ua cov laser tau siv dav hauv kev lag luam hluav taws xob vim nws qhov zoo ntawm qhov yog, kev ua haujlwm ceev, kev lag luam yooj yooj yim thiab qib siab ntawm kev siv tshuab. Piv nrog cov txheej txheem txiav ib txwm, lub tshuab laser txiav tsis tsuas yog tus nqi qis, kev noj qis, thiab vim hais tias lub laser ua haujlwm tsis muaj lub zog ntawm lub tshuab ua haujlwm, qhov ua tau zoo ntawm kev txiav cov khoom, qhov meej thiab txiav ceev yog heev zoo, thiab kev khiav lag luam muaj kev nyab xeeb thiab kev saib xyuas yog yooj yim. Cov yam ntxwv xws li: Cov duab ntawm cov khoom txiav los ntawm lub tshuab laser tsis yog daj, qhov ntug tsis siv neeg tsis xoob, tsis deformation, tsis nyuaj, qhov loj me zoo ib yam thiab raug; tuaj yeem txiav ib qho qauv duab tsis yooj yim; kev ua haujlwm siab, luv nqi, khoos phis tawj tsim duab Nws tuaj yeem txiav txhua qhov loj me me hauv ib qho duab twg. Kev loj hlob sai: Vim tias kev sib xyaw ntawm laser thiab lub tshuab thev naus laus zis, cov neeg siv tuaj yeem tsim cov ntawv laser engraving tso zis thiab hloov engraving txhua lub sijhawm ntev li ntev tau lawv tau tsim hauv lub khoos phis tawm. Laser txiav, vim hais tias qhov pom kev hloov tau hloov cov riam ib txwm siv, riam cov khoom siv ntawm lub taub hau laser tsis muaj kev sib cuag nrog kev ua haujlwm, thiab nws yuav tsis kos qhov chaw ua haujlwm thaum ua haujlwm; lub laser txiav ceev yog nrawm, qhov phais txiav yog du thiab tiaj, feem ntau tsis tas yuav rov qab ua dua tshiab; tsis muaj txhua yam kev ntxhov siab hauv qhov phais, tsis muaj shear burr; kev ua haujlwm siab, qhov ua tau zoo rov ua dua, tsis muaj kev puas tsuaj rau saum npoo ntawm cov khoom; NC cov txheej txheem, tuaj yeem ua cov phiaj xwm twg, tuaj yeem txiav tag nrho cov phaj nrog cov ntawv loj, tsis tas yuav qhib cov pwm pwm, txuag nyiaj siv sijhawm.

Cutting Txiav ultrasonic

4.1 Ultrasonic tej hauv paus ntsiab lus:

Nrog rau kev tsim tshwj xeeb ntawm vuam lub taub hau thiab lub hauv paus, lub taub hau vuam raug nias rau ntawm ntug ntawm cov khoom lag luam yas, thiab ultrasonic kev co siv los txiav cov khoom kom ua tiav cov nyhuv txiav los ntawm kev siv ultrasonic kev co ua haujlwm txoj haujlwm. Ib yam li cov kev ua hauv kev ua, lub hauv paus ntsiab lus ntawm ultrasonic txiav thev naus laus zis yog siv lub tshuab hluav taws xob ultrasonic tsim hluav taws xob tsim ultrasonic tsis muaj hluav taws xob ntawm qee qhov ntau zaus, thiab tom qab ntawd qhov pib dav thiab lub zog me me los ntawm ultrasonic-mechanical converter tso rau hauv ultrasonic. txiav taub hau. Kev vibration ultrasonic tau hloov mus rau hauv kev siv tshuab kev co ntawm tib zaus, thiab tom qab ntawd ua kom nrov zog los ntawm cov resonance kom tau txais qhov loj txaus thiab lub zog (lub zog) kom tau raws li qhov yuav tsum ua ntawm kev txiav tawm lub workpiece. Thaum kawg, lub zog xa mus rau vuam taub hau, thiab tom qab ntawd cov khoom lag luam raug txiav. Qhov zoo ntawm txoj kab txiav yog du thiab tsis tawg.
Ultrasonic txiav kev co tshuab yog tsuas yog tsim ntawm ultrasonic transducer, ultrasonic kub thiab lub taub hau vuam. Ntawm lawv, txoj haujlwm ntawm ultrasonic transducer yog kom hloov lub teeb liab hluav taws xob mus rau lub suab cim hluav taws xob; lub tshuab raj yog ib qho tseem ceeb ntawm cov cuab yeej siv ua ultrasonic. Nws muaj ob txoj haujlwm tseem ceeb: (1) lub zog-mloog-uas yog, kev siv lub tshuab kev co txav tawm lossis nrawm nrawm nrawm ntxiv, lossis lub zog tau tsom rau ntawm lub zog hluav taws xob tsawg dua rau kev sib sau zog; (2) lub suab acoustic zoo hloov mus rau lub nra- Raws li lub tshuab hloov kho tsis haum, kev sib tsuam sib luag yog ua tiav ntawm lub transducer thiab acoustic load tso cai rau ultrasonic lub zog los ntawm transducer mus rau lub nra kom nraaj dua.

4.2. Cov yam ntxwv ntawm kev txiav ultrasonic:

Thaum lub ultrasonic yoj zoo siab los ncav cuag qhov kub siab dua, cov khoom melts vim qhov kub siab intermolecular excitation thiab kev sib txhuam sab hauv.

Ultrasonic txiav nta. Ultrasonic txiav muaj qhov zoo ntawm kev du thiab ruaj khov phais, txiav kom raug, tsis muaj deformation, tsis muaj warping, fluffing, spinning, wrinkling thiab hais txog. Cov tsis zoo ntawm "laser txiav tshuab" muaj qhov tsis zoo ntawm kev ntxhib txiav, focal ntug, pilling, thiab lwm yam. Qhov zoo ntawm kev txiav ultrasonic muaj xws li: 1. Kev nrawm khiav nrawm, nrog lub sijhawm siv hluav taws xob tsawg dua li ib ob. 2. Cov yas seem tsis ntxhov siab; 3. Lub ntsej muag txiav kom huv; 4 Ntau qhov chaw tuaj yeem txiav tib lub sijhawm rau kev sib cais tsis siv neeg 5 Ultrasonic txiav yog tsis ua qias tuaj.

Dab tsi ntawm cov khoom siv yog raug txiav siv ultrasound? Kev ua haujlwm zoo tshaj plaws rau cov khoom siv zoo siv rau cov khoom siv khov (polycarbonate, polystyrene, ABS, polypropylene, nylon, thiab lwm yam). Lawv hla dhau lub zog kho tshuab ntau dua. Cov tawv qis qis dua (hom qauv ntawm kev hloov pauv) thermoplastics xws li polyethylene thiab polypropylene nqus cov khoom siv zog thiab tuaj yeem muab cov txiaj ntsig tsis sib xws.

Xaus rau

Piv nrog cov txiaj ntsig ntawm kev txiav tshuab, txiav laser thiab txiav ultrasonic, ultrasonic zoo dua rau kev txiav pob ntseg ntawm cov khoom, thiab cov nyhuv yog qhov zoo, ua tau raws li qhov yuav tsum ua ntawm kev txiav khoom, thiab cov ua haujlwm ntawm ultrasonic txiav yog qhov ntau tshaj. Ultrasonic txiav yog cov tshuaj zoo rau cov kev xav tau ntawm kev txiav khoom.

Nrog rau kev kawm tiav qeeb zuj zus ntawm kev tshawb fawb ntawm ultrasonic txiav tshuab, nws ntseeg tau tias nyob ze yav tom ntej, nws yuav thov tau ntau dua.