Kuwotcherera kwa laser ndikuwunikira mtengo wa laser pamwamba pa chogwirira ntchito kudzera mu mandala owoneka bwino, kuti zinthuzo zisungunuke mwachangu kupanga dziwe losungunuka, kenako kuzikhazikika mwachangu kuti apange cholumikizira cholumikizira.Iwo ali ndi makhalidwe a chiŵerengero chachikulu cha mbali, mofulumira kuwotcherera liwiro, ndipo sanali kukhudzana ndi workpiece, amene n'zosavuta kukwaniritsa Zodzichitira kupanga, kotero njirayi wakhala ankagwiritsa ntchito.Komabe, chifukwa cha kuyanjana kovuta pakati pa gwero la kutentha kwa laser ndi zinthu panthawi ya kuwotcherera kwa laser, komanso mawonekedwe apadera akuthupi azitsulo zotayidwa ndi ma aloyi amkuwa, zida zowunikira kwambiri zimakhala ndi chiwonetsero chachikulu cha laser pa kuwotcherera, njira yosakhazikika yowotcherera, ndi zosavuta kutulutsa porosity zolakwika, etc. vuto.Mukamagwiritsa ntchito ma laser wamba kuti muwotche zida zowunikira kwambiri monga aluminiyamu ndi mkuwa, kugwa kwa bowo la kiyi kumatulutsa mabowo ang'onoang'ono ndi ma splashes.Chifukwa cha splashes, zitsulo zowotcherera zidzachepetsedwa, zomwe zimapangitsa maenje ndi malo osagwirizana;Komanso, zipangizozi zimakhala ndi kuwala kwakukulu kwa laser, Kuchuluka kwa mayamwidwe kumakhala kochepa, ndipo mphamvu zambiri zimawonekera, zomwe zimapangitsa kuti pakhale kusakanizidwa bwino kwa zodzaza;nthawi yomweyi, panthawi yozizira, chifukwa cha kuthamanga kwambiri kwa kuzizira, kusungunuka kwa haidrojeni ndi mpweya wina mu dziwe losungunuka kumachepetsedwa kwambiri ndipo kuchedwa kuthawa, zomwe zimachititsa pores.panga.
Njira zazikulu zowotcherera kuti muchepetse spatter ndi porosity
Momwe mungachepetsere spatter, kuchepetsa porosity, ndi kupeza weld yosalala ndizovuta kwambiri pakuwotcherera zida zowoneka bwino.Makampani ambiri apakhomo ndi akunja apitilizanso kufufuza izi ndipo ayambitsa zinthu zawo.
(1) Kugwiritsa ntchito nsonga kuwotcherera mutu The swing kuwotcherera njira akhoza kumwazikana kachulukidwe mphamvu, kusintha yunifolomu kutentha kuwotcherera, ndi kuchepetsa m'badwo wa sipotera ndi pores kumlingo wakutiwakuti.Pakali pano, opanga makina ambiri a laser (monga Jiaqiang, Wanshunxing, Kirin, etc.) adayambitsa mitu yowotcherera ya laser yofanana.Koma panthawi imodzimodziyo, pali zovuta zina.Popeza kuchulukitsitsa kwamphamvu kwa laser kumachepetsedwa, mphamvuyo iyenera kuonjezedwa kapena liwiro la kuwotcherera liyenera kuchepetsedwa.
(2) Gwiritsani ntchito mutu wowotcherera wapawiri-wavelength kuphatikiza fiber laser ndi semiconductor laser yokhala ndi mutu wowotcherera wapawiri-wavelength, ndikuphatikizana pamalo owotcherera.The CHIKWANGWANI laser amachita kuya kulowa kuwotcherera.Chepetsani kuwaza.Pakadali pano, opanga mitu ya laser monga Jiaqiang ndi Wanshunxing adayambitsanso mitu yotereyi.Komabe, njira yowotcherera iyi imafuna kugwiritsa ntchito ma laser awiri, ndipo kuphatikiza kwa zida kumakhala kovuta kwambiri.
(3) Laser yokhala ndi malo apadera
Yankho labwino kwambiri lotsika mtengo lili kumbali ya laser, kusintha laser yogawa ya Gaussian kukhala mphete + yapakati, kuwala kwapakati kumatsimikizira kuya kwa dziwe losungunuka, ndipo malo owala mphete amatenga gawo lotenthetsera ndikuzizira pang'onopang'ono, amafananizidwa ndi mfundo yowotcherera yomwe tatchulayi yapawiri-wavelength.zofanana.Opanga ma laser odziwika adayambitsanso ma lasers ofanana, monga laser ya IPG's AMB ndi Raycus' ABP laser.
Kodi FRM ya GW Laser Tech ndi chiyani
Poyankha zovuta zowotcherera zomwe zatchulidwa pamwambapa, GW Laser yakhala ikuyang'ana mosalekeza panjira ya chitukuko chaukadaulo, ndikuyambitsa katswiri wazowotcherera zinthu - FRM (Flexible Ring Mode) dynamic spot output laser, yomwe amatha kuchepetsa njira yowotcherera ya zinthu zowoneka bwino kwambiri.Splash ndi kupanga porosity.
Ma laser a FRM amaphatikiza ma module awiri owoneka pagawo loyambira ndi mphete yapakati pa ulusi kudzera pa cholumikizira makonda, kuphatikiza matabwa awiri a laser kukhala mtengo umodzi, kenako ndikuwuyika pamwamba pa chogwirira ntchito kuti apange malo ophatikizika.Ndi kusintha koyenera mphamvu chiŵerengero, ndi lonse kuwotcherera m'lifupi ndi otsika kuwotcherera msoko mbali chiŵerengero akhoza kupangidwa, amene angathe bwino patsogolo bata la keyhole, ndipo akhoza kwambiri kuchepetsa sipatter ndi kuchepetsa tilinazo stomatal.
Laser ya FRM imatha kuwongolera mphamvu ya kuwala kwapakatikati ndi kuwala kwa mphete.Itha kungoyatsa nyali yapakati kapena kuwala kwa mphete, kapena zonse zitha kuyatsidwa nthawi imodzi kupanga mitundu itatu ya malo wamba, malo a annular, ndi malo apawiri;ikayatsidwa nthawi yomweyo, imatha Pakatikati ndi pachimake cha mphete zimatha kupanga mphamvu yapakati kuposa mphamvu yapakati, kapena mphamvu yapakati imatha kukhala yaying'ono kuposa mphamvu yapakati, kapena mphamvu yapakati ndi yofanana. ku mphamvu yapakati pa mphete, ndipo mawonekedwe amitundu yosiyanasiyana asanu amatha kusinthidwa.
The awiri a chapakati malo ndi yaing'ono ndi kachulukidwe mphamvu ndi mkulu.Kuwotcherera kumatengera njira yolowera kwambiri yolowera, yomwe idzatulutsa chibowo cha keyhole ndikupanga dziwe losungunuka lokhala ndi gawo lalikulu.Komabe, ili ndi zofunika kwambiri pa kusiyana kofananira, ndipo kuchuluka kwakukulu kwa nthunzi yachitsulo yothamanga kwambiri kumatulutsidwa pamene bowo la keyhole limapangidwa ndi kuwotcherera kwakuya, komwe kumakonda kuphulika ndi kuphulika.Kutentha kwa dziwe losungunuka ndilokwera ndipo kutuluka kwamkati kumakhala kwachiwawa, ndipo kusinthasintha kwa dziwe losungunuka ndilowonekera.
The awiri a annular spot ndi lalikulu ndi kachulukidwe mphamvu ndi kochepa.Kuwotcherera kumatengera njira yoyendetsera kutentha, yomwe imatha kupanga dziwe losungunuka.Popeza kuwotcherera matenthedwe matenthedwe sapanga dzenje lofunika, kutentha kwa dziwe losungunuka kumakhala kotsika panthawi yowotcherera, ndipo palibe kusinthasintha kodziwikiratu kwa dziwe losungunuka.Spatter, weld ndi yosalala komanso yokongola.Komabe, chifukwa cha kuchuluka kwa mphamvu zomwazika, kuya kwakukulu kolowera sikungapezeke.
Kuphatikiza ziwirizi palimodzi, pokonza chiŵerengero choyenera cha mphamvu, pamene malo apakati amatsimikizira kuya kwa dziwe losungunuka, malo a annular amawonjezera m'lifupi ndi nthawi ya dziwe losungunuka, kumbali imodzi, amawongolera kukhazikika kwa bowo la keyhole ndikuchepetsa. splashing Komano, kutuluka kwa dziwe losungunuka kumakhala kokhazikika, ming'oma imasefukira kwa nthawi yaitali, ndipo kuthekera kwa mapangidwe a porosity kumachepetsedwa.
Laser ya FRM imatha kupereka mphamvu yotulutsa mpaka 20KW, ndipo imatha kusintha magawo a kuwala kotulutsa.The awiri a chapakati mtengo linanena bungwe CHIKWANGWANI ndi 50μm/150μm, ndi linanena bungwe mphamvu ndi 10KW;awiri a mphete mtengo linanena bungwe CHIKWANGWANI ndi 150μm/300μm, ndi linanena bungwe mphamvu ndi 10KW.Mtsinje wapakati ndi laser fiber yokhala ndi kutalika kwa 1070nm, ndipo mtengo wa mphete ukhoza kukhala ndi 976nm semiconductor laser kuphatikiza pa 1070nm fiber laser kuzindikira kuphatikizika kwamitundu iwiri-wavelength ndi iwiri-laser-laser.
FRM yabwino kuwotcherera mphamvu
Kuti muwonetse mphamvu yowotcherera ya FRM, otsatirawa amagwiritsa ntchito laser ya FRM ndi laser wamba kuwotcherera ma aloyi a aluminiyamu ndikufananiza.
A 1.5KW + 1.5KW (50μm + 150μm) FRM laser ntchito weld 6061 zotayidwa aloyi ndi makulidwe a 3mm, ndipo poyerekeza ndi 3KW (100μm) laser wamba.Zitha kupezeka kuti spatter ya FRM laser kuwotcherera ndi yaying'ono kwambiri kuposa ya kuwotcherera wamba laser.
Zitsanzo zowotcherera zidadulidwa kuti ziwonedwe ndi metallographic.Chifukwa cha mphamvu ya malo a annular, weld yopezedwa ndi FRM laser imakhala ndi mawonekedwe opapatiza pamwamba ndi pansi, ndipo malo apamwamba ndi apansi amakhala athyathyathya;pamene kuwotcherera kwa weld kwa kuwotcherera wamba kwa laser kumakhala kosunthika pamwamba ndi pansi, ndipo pamwamba pake ndi kugwa ndipo pansi ndi otukukira.
Kulimba kwamphamvu kwa msoko wowotcherera pambuyo pakuwotcherera kumayesedwa, ndipo kulimba kwa kuwotcherera kwa FRM ndikobwinoko kuposa kuwotcherera wamba kwa laser.
Zofunikira za FRM
China imawona magalimoto opangira magetsi atsopano ngati imodzi mwamafakitale asanu ndi awiri opangira njira.Popeza mphamvu ya batri ya lithiamu ndi gawo lofunikira kwambiri pamagalimoto atsopano amphamvu, ndikukula kosalekeza kwa magalimoto amagetsi atsopano, imagwiritsidwanso ntchito kwambiri ndikupangidwa molingana.
Malinga ndi ziwerengero zochokera ku China Research Institute of Puhua, kufunikira kwa mabatire a lithiamu padziko lonse lapansi kupitilira kukwera kuchokera ku 2017 mpaka 2020, ndipo kufunikira kwa zida za batri ya lithiamu kudzapitilira kukula muzaka zikubwerazi za 3-5.Kukula kwachangu kwamakampani a batire a lithiamu kwachititsa makampani akuluakulu kuonjezera kumanga mafakitale atsopano komanso kukulitsa mphamvu zopanga.
Kutetezedwa kwa paketi ya batri ndikofunikira kwambiri.Kulephera koyenera kukachitika, kumabweretsa zotsatira zoyipa kwambiri ndikuwopseza miyoyo ya anthu.Pakati pawo, chinthu chomwe chimagwira gawo lalikulu pachitetezo cha magalimoto amagetsi ndikuwotcherera mbali zazikulu za paketi ya batri yamagetsi.Chinthu chofunika kwambiri pazigawozi ndi aluminiyamu alloy, kuphatikizapo ma valve oteteza kuphulika, zisindikizo za selo, ma tabo, mipiringidzo ya basi, ndi zina zotero;kutsatiridwa ndi zipangizo za Mkuwa, monga mizati, ma tabo, ndi zina zotero. Ubwino wowotcherera wa malowa udzakhudza mwachindunji kudalirika kwa khalidwe la paketi ya batri.
Pakuti kuwotcherera mbali zosiyanasiyana za batire mphamvu, FRM laser ntchito Guanghui Laser angathe kuthetsa vuto kuwotcherera, kuzindikira ziro sipatter mu kuwotcherera, palibe pores pamwamba, malowedwe khola, yosalala ndi wokongola kuwotcherera msoko, kwambiri kusintha khalidwe kuwotcherera. , ndikuwonetsetsa bwino kukhazikika kwa batri yamphamvu.Kugonana ndi chitetezo.
Kusintha kwa msika wapadziko lonse wamagalimoto kumagetsi ndizomwe zimachitika, ndipo pansi pazitukuko zambiri, zikuyenera kuyika patsogolo ukadaulo wowotcherera wa lithiamu-ion, ndipo lifiyamu-ion batire processing wakhala msika wofunikira kwa laser m'banja. makampani.Guanghui Laser adzapitiriza kuyesetsa m'munda wa lithiamu batire kuwotcherera.Kudzera mwaukadaulo wodziyimira pawokha, kukweza kwa laser iterative kudzachitika kuti athandize makasitomala kukonza njira zowotcherera ndikuwonjezera chitetezo chazinthu ndi mpikisano.
Wolemba: GW Laser application engineer Jiaxing Gu
Nthawi yotumiza: Feb-15-2022