Dab tsi yog laser machining ntawm acrylic ntawv

Thaum nws los txog rau cov ntawv acrylic, Co2 lasers feem ntau suav tias yog lub zog thiab tus nqi- Cov kev daws zoo, muab rau lawv siv rau cov ntawv thov kom tsim nyog. Txog cov haujlwm uas yuav tsum tau huv, ntse hauv kev ua kom muaj kev sib zog ua kom nruj dua 0.005 nti ib txhais ko taw ua kom zoo dua 0.005 laser yog feem ntau cov cuab yeej zoo tshaj plaws rau txoj haujlwm. Ib qho ntawm cov laj thawj tseem ceeb rau qhov no yog tias kev txiav laser txiav ua cov kab kerf me me, feem ntau ntawm 0.020 nti. Tsis tas li ntawd, nws muaj kev sib haum xeeb tau hais txog cov duab thiab qhov loj me, thiab pom qhov tseem ceeb tshaj plaws, nws yoojyim rau lub ntsej muag polished,}} dawb ntug. Vim tias cov yam ntxwv no, nws yog qhov kev xaiv ua ntej rau ntau qhov siab- kev siv cov ntawv thov.

Equipment Overview

Fundamentally, CAT2 lasers ua haujlwm los ntawm emitting lub nqaj ntawm lub teeb sib npaug. Lub teeb no muaj nthwv dej tshwj xeeb ntawm 10.6 microns. Nws yog tsim nyog sau tseg tias qhov no tshwj xeeb yog nqus tau zoo heev los ntawm tsis yog- cov ntaub ntawv hlau. When this beam of light, or energy, is focused through a lens down to a very tiny point, it essentially vaporizes the material that lies in its path.

Nyob rau hauv cov nqe lus ntawm lub tshuab teeb tsa, lub tsom iav ci yuav tsum khaws cia nyob ruaj ruaj rau ntawm ib x {{y outing rooj. Hloov pauv, nws tuaj yeem muab tso rau saum npoo av nyob hauv qhov chaw nyob hauv dab tsi yog paub hauv kev lag luam ua "ya lub taub hau" kev teeb tsa. Txhawm rau piav qhia txog lub ntsej muag ya lub taub hau tsuas yog: lub nqaj laser nws tus kheej txav mus rau ib lossis ob lub axes los ntawm cov kab ke ntawm cov tsom iav thiab cov tshuab ua haujlwm. Cov tswj hwm, PCs, thiab software siv los tswj cov chaw ntawm ob lub laser thiab kev ua haujlwm tau zoo heev rau cov khoom siv kho vajtse thiab software pom hauv lwm lub tshuab CNC machining. Thiaj li, kev tsim qauv rau thiab ua haujlwm ib lub laser cutter yog tsis muaj kev nyuaj tshaj li ib qho qauv cnc tshuab.

Thaum koj teeb tsa kom txiav acrylic nrog laser, muaj peb tus thawj hloov uas koj yuav tsum muaj kev txhawj xeeb nrog. Txhua ntawm cov no yuav cuam tshuam ob qho zoo ntawm kev txiav thiab cov txiaj ntsig kev ntxhov siab qib hauv cov khoom. Cov hloov no yog:

Lub zog ntawm lub laser.
Tus nqi pub.
Mem tes tus nqi.

Tag nrho cov chaw no tuaj yeem hloov kho kom haum rau cov ntaub ntawv sib txawv, cov tuab tuab, thiab qhov xav tau ua tiav ntawm ntug. Rau cov ntawv acrylic, ib chav laser kom me li 40 watts tuaj yeem siv rau thicknesses mus txog rau ntxhib ¼ nti. Txawm li cas los xij, yog tias koj xav ua tiav cov ntug zoo zoo nrog qhov me me laser zoo li qhov no, koj yeej tseem yog kom qeeb tus nqi pub rau li 20 ntiv tes ib feeb.

Ntawm qhov tod tes, rau cov nplooj ntawv tuab lossis yog tias koj xav tau tus nqi pub noj dua sai, ib qho laser loj dua. Ib qho 180-watt laser, feem ntau yuav muab cov ntaub nrawm thiab kev lag luam txiav feem ntau ntawm cov ntawv uas muaj acrylic thaum khiav ntawm tsuas yog li 75% lub zog. Cov tshuab nrog ntau dua wattage, nyob rau hauv thaj tsam ntawm 500 txog 1000 watts, cia rau ntau cov nqi haus ntau dua thiab kuj tso cai rau kev siv taub hau ntau ib txhij.

Procedures: Setting Up To Cut Acrylic Sheet

Nws yog feem ntau pom tias nce cov roj laser ntawm ib tus nqi pub mis tshwj xeeb yuav ua rau muaj kev ua tiav zoo. Txawm li cas los xij, qhov poob qis yog tias qhov no tseem nce qib kev ntxhov siab nyob rau hauv daim ntawv ntug. Hloov siab, siv tus nqi pub dawb nrog tus nqi nrawm dua feem ntau yuav ua rau muaj kev ntxhov siab qis, txawm hais tias saum npoo yuav muaj kev lom zem.

Hais txog cov mem tes tus nqi (uas yog ntsuas hauv cov pulses ib ob, lossis PPS), qhov no tsuas yog tus nqi ntawm lub laser "hluav taws xob." Nws yog ib qho tseem ceeb kom nkag siab tias lub nqaj laser yog qhov tseeb ntawm cov tawg me me, lossis cov pulses, dua li ib qho dej txuas ntxiv. Koj tuaj yeem tswj tus nqi mem tes hauv ob txoj kev tseem ceeb: muaj sijhawm rau lub sijhawm, lossis kev sib koom ua ke kom deb ntawm kev mus ncig.

Thaum lub sijhawm ntawm kev ua cov mem tes mem tes ua ntu zus thiab yooj yim dua thiab yooj yim rau cov haujlwm thaum pib, hom no feem ntau ua rau raug hlawv hauv cov ces kaum. Qhov laj thawj rau qhov no yog qhov x - y maub los lawm siv sijhawm ntev dua kom tau taug txoj kab ncaj nraim. Raws li ib tug tshwm sim, cov ceg - Zoo tshaj yog cov sab hauv- zoo heev zog, ua rau lawv yaj thiab dhau- ntxhov siab. Qhov no yog qhov tseem ceeb tshaj plaws los txiav txim siab thaum txiav notch {{}} Cov ntaub ntawv rhiab xws li acrylic thiab polycarbonate. Sab hauv kaum kaum feem ntau cov cheeb tsam tsis muaj zog uas nqa loads siab. Yog li ntawd, txhua yam ua tau yuav tsum tau ua kom txo cov kev ntxhov siab lossis tsis yog cov chaw nyob hauv cov cheeb tsam no.

Ua cov mem tes mem tes sib npaug rau qhov kev ncua deb tshem tawm cov teeb meem loj ntawm cov teeb meem no. Raws li cov maub los raws li tus maub los ua qeeb qeeb rau tus nqi pub rau ntawm cov ces kaum, tus lej mem tes tseem qeeb qeeb. Qhov no ua kom ntseeg tau tias cov nyiaj ntawm lub zog emitted ntawm ib qho kev muab raws kev txiav tsis tas li.

Nws tsis muaj teeb meem npaum li cas koj tus maub los yog lossis sai npaum li cas koj tus nqi noj mov yog; Ntug kev ntxhov siab yog ib yam uas yuav tsum tau txiav txim siab ib txwm muaj nyob hauv qee cov ntawv thov. Thaum twg ib daim ntawv ntawm acrylic lossis polycarbonate yog rhuab, lub peev xwm rau kev ntxhov siab thaum tshav kub. Cov teeb meem no tseem ceeb tshaj plaws thaum tsuas yog ib feem ntawm daim ntawv yog rhuab, uas yog qhov tshwm sim thaum lub sijhawm laser txiav.

Lub interface ntawm qhov tsis -} rhuab lub cev ntawm daim ntawv thiab cov ntug cua nrawm nrawm nrawm yog qhov ua rau ploj mus. Cov chaw ntxhov siab ntxhov siab no tuaj yeem txuas ntxiv kwv yees li 0.010 rau 0.050 nti rau hauv daim ntawv, nyob ntawm qhov tuab. Cov chaw no muaj ntau heev rau kev cem yog tias lawv tuaj cuag nrog cov kuab tshuaj tsis sib xws lossis raug rau kev ntxhov siab kho tshuab, xws li khoov.

Koj tuaj yeem txo cov teeb meem kev ntxhov siab no los ntawm kev kho tus nqi pub noj, mem tes, thiab lub zog. Siv lub zog qis dua thiab cov mem tes qeeb qeeb, sib xyaw ua ke nrog tus nqi sai sai, txo cov nqi ntawm lub zog lossis cua sov nqus los ntawm daim ntawv. Qhov no, nyob rau hauv lem, txo ob qhov ntau ntawm kev ntxhov siab thiab qhov kev ncua deb uas qhov kev ntxhov siab tau hais tawm rau hauv daim ntawv. Txawm li cas los xij, ib qho yuav tsum lees txais tias cov xwm txheej no yuav ua rau muaj kev ua tiav ntawm ntug. Hauv qee kis tshwj xeeb, nws yuav ua tau tiag tiag los txhuam lossis tshuab pov tseg cov chaw ntxhov siab tag nrho.

Feem ntau siab siab -}} powered laser txheej txheem tuaj nruab nrog lub tshuab nqus tsev puag ...} down down down down cov kwj. Ntau yam ntawm no tuaj yeem cuam tshuam qhov kawg zoo ntawm kev txiav: hom roj siv, tus nqi txaus ntawm cov roj, thiab kev ua haujlwm ntawm lub tsev nqus tsev hauv cov pa nqus dej kom huv si. Muaj roj zoo thoob plaws kev txiav, ua ke nrog lub tshuab nqus tsev uas muaj peev xwm tshem tawm qhov ua haujlwm me me, ua rau muaj kev puas tsuaj me me}.

Laser Cuttable Masking

Kev ua yeeb yam ntawm lub ntsej muag yog lwm qhov kev txiav txim siab uas muaj kev xaiv Acrylic rau koj daim ntawv thov tshwj xeeb. Yog hais tias lub ntsej muag tsis ua raws li, ntu tau raug puas lossis khawb hauv cov txheej txheem fabrication, thiab ua tau zoo ntawm cov txheej txheem nws tus kheej tuaj yeem cuam tshuam tsis zoo. Hloov siab, yog tias daim npog qhov ntswg yog qhov nyuaj rau tshem tawm, nws ua rau muaj kev ua haujlwm ntxiv thiab cov nqi siab dua. Xaiv txoj cai masking rau lub phiaj xwm fab raug yog qhov tseem ceeb los txo cov teeb meem no.

Kev lig kev cai, daim npog daim npog tau yog qhov kev xaiv txheem rau kev txiav laser. Cov txiaj ntsig ntawm no yog tias nws yuav tsis fuse rau cov acrylic ntawm cov npoo ntawm kev txiav. Nws muaj zog, zoo ib yam adhesion txwv tsis pub lub ntsej muag los ntawm kev nqa cov pob zeb thiab txiav, uas tiv thaiv cov acrylic nto los ntawm cov roj av kub, corrosive gases tsim los ntawm lub laser. Txawm li cas los xij, laser - cuttable polyethylene masking yog tam sim no tseem muaj nyob ntawm cov ntawv acrylic.

Rau cov xwm txheej uas yuav tsum muaj qhov siab tshaj plaws ua haujlwm thiab tso zis ntau dua, cov khoom siv tshwj xeeb} Hom masking no yooj yim heev kom tshem tawm ntawm ib feem ua tiav, tsis tau muaj cov nplaum txaus kom tiv thaiv kev tuav zoo. Although it is rarely a major issue, this type of masking might lift in areas where the laser idles for too long, due to its lighter adhesive formula. Qhov no feem ntau tshwm sim thaum pib ntawm kev txiav lossis thaum lub sij hawm nruj heev voj vojvoog. Koj tuaj yeem yooj yim tiv thaiv qhov kev txhawb nqa no los ntawm kev siv "- Nyob rau hauv" Thaum pib txo tus nqi ntawm cov mem tes lossis txo cov mem tes los ntawm kev ua kom nruj.

Yog tias koj xav tau lub pristine, polished ntug, muaj ib qho tshwj xeeb uas tsis {{{cov tais nplaum nplaum polyethylene muaj. Txij li thaum txhua tus nplaum - Bread Beekings tawm tsawg kawg yog qee qhov chaw seem ntawm txoj kev txiav, lawv tuaj yeem txo qis dua lub ntsej muag polished. Yog li ntawd, rau cov ntawv thov uas xav tau qhov zoo tshaj plaws tsos, tsis {{4 4}} cov phaj txiav "Daim npog ntsej muag yog qhov pom zoo. Thaum lub ntsej muag no yuav nyuaj dua li tshem tawm ntau dua li cov nplaum nplaum, nws muab ib qho zoo me ntsis ntug thiab yog tiv taus ntau rau kev nqa ob sab. Yog tias kev nqa tawm tshwm sim, koj tuaj yeem ua cov kauj ruam zoo sib xws rau cov tau piav saum toj no.

Lwm tus taw tes los txiav txim siab txog daim npog ntsej muag yog wrinkles. Txhawm rau tswj cov software qub ntawm daim ntawv, daim npog ntsej muag-} Tshwj xeeb tshaj yog nyob rau sab saum toj saum npoo- Yuav tsum pub dawb ntawm wrinkles. Yog hais tias lub ntsej muag tsis nyob rau hauv daim ntawv ntawm qhov txiav, cov roj kub tuaj yeem raug daig ntawm daim npog ntsej muag thiab daim ntawv, uas yuav etch saum npoo. Etching feem ntau yog qhov teeb meem nyob hauv qab ntawm daim ntawv vim tias feem ntau {}}}}}}}}} down down down down down gas້, uas zoo rub tawm cov pa kub kom ua ntej lawv tuaj yeem ua kev puas tsuaj.

Ib yam li ib qho ntawm cov tshuab sib xyaw ua ke, cov txiv txiav laser yuav tsum tau saib xyuas ib txwm ua kom ua tau zoo. Nws yog kev coj ua zoo los khaws cov ntaub ntawv ntawm lub zog teeb tsa yuav tsum tau txiav ib qho tuab tuab ntawm cov khoom siv ceev. Lub sijhawm dhau los, koj yuav pom tias lub zog teeb tsa yuav tsum tau nce ntxiv lossis txiav ceev kom txo qis. Qhov no feem ntau yog vim laser appSocs ua qias neeg lossis tawm ntawm kev ua kom pom tseeb. Raws li qhov no tshwm sim, qhov zoo ntawm kev txiav yuav ua rau. Kev tu ib txwm tau ua los ntawm tus kws tshaj lij tus kheej yog qhov tseem ceeb rau kev tswj cov kev txuag thiab zoo.

Thaum lasers tsis ntseeg siab - powered thiab cov cuab yeej siv zog ntau dua li lwm cov cuab yeej kav, muab lawv tau teeb tsa thiab ua haujlwm raug. Feem ntau, tsom iav kev nyab xeeb yog txaus rau kev tiv thaiv qhov muag. Txawm li cas los xij, nws yog qhov tseem ceeb rau nco ntsoov tias tsis yog txhua lub ntsej muag kev nyab xeeb lub wavelen wavelength ntawm 5 ntawm 10,600 nanometers), uas yog ib txwm muaj rau cov lasers no.

Raws li Ansi Txuj Ci Z136.1, cov tsom iav kev nyab xeeb yuav tsum tau sau meej nrog ob lub wavelength thiab lub wavelength thiab lub qhov muag kho qhov muag tsis pom tseeb.

Tsis tas li ntawd, txoj kev tso tawm yog tsim nyog kiag li los tshem cov kev tua phom loj uas tsim kev phom sij thaum txiav. Nyob ntawm cov khoom siv tshwj xeeb tau ua tiav, nws kuj tseem yuav tsum lim cov vapors no ua ntej tso lawv sab nraud. Raws li yog cov ntaub ntawv nrog cov khoom siv, muaj kev paub zoo ntawm cov kev ua haujlwm thiab cov txheej txheem kev nyab xeeb yog qhov yuav tsum tau siv ua ntej siv lub system laser.

Emissions

Muaj ntau cov kev tshawb xyuas kev tshawb fawb los ntawm ntau cov kws tshawb nrhiav sim los txiav txim siab qhov tseeb thiab hom pa tawm los ntawm laser txiav acrylic. Txawm hais tias txhua yam kev rau siab no, nws tseem tsis tau twv kom paub meej tias yog qhov tseeb los ntawm- cov khoom thiab lawv cov roj ntsha hauv cov roj av emission nrog tag nrho qhov tseeb.

Cov tshuaj loj no yog nyob ntawm ntau yam ntawm cov khoom, ua cov roj av, cov roj av siv, cov tshuaj txhuam, thiab cov tshuaj yaj hnyav ntawm cov acrylic polymer. Ib qho ntxiv, feem ntau ntawm cov kev tshawb fawb tsis suav rau cov teebmeem ntawm daim ntawv tiv thaiv lossis polyethylene masking, thiab tsis txhob txiav txim siab txog cov kev cuam tshuam ntawm txhua lub tsho.

Thaum Acrylic raug txiav los ntawm lub laser, feem ntau ntawm cov txheej txheem decomposed yog hloov dua siab rov qab rau hauv nws cov chaw ua haujlwm Monomers. Nyob rau hauv feem ntau cov ntawv acrylic, cov monomers muaj ntau tshaj 90% methylmethacrylate, nrog cov seem uas metharumate. Nws tseem muaj rau ntau tus neeg xa khoom mus ua haujlwm rau kev ua kom zoo nkauj hauv lawv cov acrylic tsim.

(Nws yuav tsum tau raug sau tseg tias kev ua kom muaj txiaj ntsig ntawm National Toxicity uas yuav xav tias yuav tsum muaj cov neeg mob cancer acrylate raws li cov carcinogen.)

Thaum lub sijhawm tshawb fawb hauv kev tshawb fawb hauv Heferkamp, mus, thiab Wittrics lawv kuaj, Acrylic ua tau tshwm sim hauv cov neeg qis qis tshaj plaws (<10 mg/m3). Their work also indicated that over 90% of the emissions generated from laser cutting acrylic were gaseous methylmethacrylate monomer.

Lwm cov kws tshawb nrhiav, sims, thiab Taylor, thiab tus me me-2-Methyl-2-Methyl-2-Methyl-3 Pentenoate, xyaws, benethyl benzene, thiab alkanes. Qhov zoo siab, lawv pom tsis muaj Pahs (polycyclic muaj ntxhiab tsw qab hydrocarbons), uas tau cuam tshuam rau cov kev tshawb pom nyuam qhuav dhau los ntawm pob, Kulik, thiab ziab.

Nws raug nquahu kom txhim kho cov khoom siv cua txaus kom ntseeg tau tias cov neeg ua haujlwm raug nyob hauv qab. Tsis tas li ntawd, kev txiav txim siab yuav tsum tau muab rau ib puag ncig cov kev cai yog tias koj ua pa hluav sab sab nraud. Cov chaw tsim khoom ntawm cov khoom siv laser txiav feem ntau yuav muab cov lus qhia seb yuav ua li cas kom sau tau laser pa.