Kodi kuwotcherera laser ndi chiyani?Kuwotcherera kwa Laser Kufotokozera!Zonse zomwe muyenera kudziwa za Kuwotcherera kwa Laser, kuphatikiza mfundo zazikuluzikulu ndi magawo akulu!
Makasitomala ambiri samamvetsetsa mfundo zazikuluzikulu zogwirira ntchito za makina owotcherera a laser, samatha kusankha makina oyenera kuwotcherera laser, komabe Mimowork Laser ili pano kuti ikuthandizeni kupanga chisankho choyenera ndikupereka chithandizo chowonjezera kukuthandizani kumvetsetsa kuwotcherera kwa laser.
Kodi kuwotcherera kwa laser ndi chiyani?
Laser kuwotcherera ndi mtundu wa kusungunula kuwotcherera, ntchito laser mtengo monga kuwotcherera gwero kutentha, kuwotcherera mfundo ndi kudzera njira yeniyeni yotithandiza sing'anga yogwira, kupanga resonant patsekeke oscillation, ndiyeno kusintha mu analimbikitsa cheza mtengo, pamene mtengo. ndipo ntchitoyo imalumikizana wina ndi mzake, mphamvu imatengedwa ndi ntchitoyo, pamene kutentha kumafika pamtunda wosungunuka wa zinthu zomwe zimatha kuwotcherera.
Malinga ndi njira yayikulu yowotcherera dziwe, kuwotcherera kwa laser kuli ndi njira ziwiri zowotcherera: kuwotcherera kwa kutentha ndi kulowa kwambiri (keyhole) kuwotcherera.Kutentha kwaiye chifukwa kutentha conduction kuwotcherera ndi diffused ku chidutswa ntchito kudzera kutentha kutengerapo, kotero kuti weld pamwamba kusungunuka, palibe vaporization kuyenera kuchitika, amene nthawi zambiri ntchito kuwotcherera otsika-liwiro woonda-ish zigawo zikuluzikulu.Kuwotcherera kwakuya kumawumitsa zinthuzo ndikupanga madzi ambiri amadzimadzi.Chifukwa cha kutentha kwakukulu, padzakhala mabowo kutsogolo kwa dziwe losungunuka.Kuwotcherera kwakuya ndi njira yomwe imagwiritsidwa ntchito kwambiri ndi laser kuwotcherera, imatha kuwotcherera bwino ntchitoyo, ndipo mphamvu yolowera ndi yayikulu, zomwe zimatsogolera kuthamanga kwa kuwotcherera.
Njira Parameters mu Laser Welding
Pali magawo ambiri omwe amakhudza mtundu wa kuwotcherera kwa laser, monga kachulukidwe kamphamvu, mawonekedwe a laser pulse, defocusing, liwiro la kuwotcherera komanso kusankha kwa gasi woteteza wothandiza.
Laser Power Density
Kuchuluka kwa mphamvu ndi chimodzi mwazinthu zofunika kwambiri pakukonza laser.Ndi kachulukidwe kakang'ono ka mphamvu, pamwamba pake amatha kutenthedwa mpaka kuwira mkati mwa microsecond, zomwe zimapangitsa kuti pakhale mpweya wambiri.Choncho, kachulukidwe wapamwamba kwambiri ndi wopindulitsa pazinthu zochotsa zinthu monga kubowola, kudula ndi kujambula.Kwa kachulukidwe kakang'ono ka mphamvu, pamafunika ma milliseconds angapo kuti kutentha kwapamtunda kufikire powira, ndipo pamwamba pa nthaka isanatenthedwe, pansi kumafika posungunuka, zomwe zimakhala zosavuta kupanga weld yabwino yosungunuka.Choncho, mu mawonekedwe a kutentha conduction laser kuwotcherera, mphamvu kachulukidwe osiyanasiyana 104-106W/cm2.
Laser Pulse Waveform
Laser pulse waveform sikuti ndi gawo lofunikira losiyanitsa kuchotsedwa kwa zinthu kuchokera ku kusungunuka kwa zinthu, komanso gawo lofunikira kudziwa kuchuluka ndi mtengo wa zida zopangira.Pamene kuwala kwakukulu kwa laser kuwombera pamwamba pa zinthuzo, pamwamba pa zinthuzo zidzakhala ndi 60 ~ 90% ya mphamvu ya laser yomwe imawonetsedwa ndikuyesedwa kutayika, makamaka golide, siliva, mkuwa, aluminiyamu, titaniyamu ndi zipangizo zina zomwe zakhala nazo. kusinkhasinkha kwamphamvu komanso kusamutsa kutentha mwachangu.Kuwonetsera kwachitsulo kumasiyanasiyana ndi nthawi panthawi ya laser pulse.Kutentha kwa pamwamba pa zinthuzo kumakwera kufika pamtunda wosungunuka, chiwonetserocho chimachepa mofulumira, ndipo pamene pamwamba pa malo osungunuka, chiwonetserocho chimakhazikika pamtengo wina.
Laser Pulse Width
Kugunda m'lifupi ndi gawo lofunikira la kuwotcherera kwa laser pulsed.Kuthamanga kwamphamvu kunatsimikiziridwa ndi kuya kwa malowedwe ndi kutentha komwe kumakhudzidwa.Kutalikirapo kwa kugunda kunali kokulirapo, dera lomwe limakhudzidwa ndi kutentha linali lalikulu, ndipo kuya kwa kulowa kumawonjezeka ndi mphamvu ya 1/2 ya m'lifupi mwake.Komabe, kuwonjezeka kwa kugunda m'lifupi kudzachepetsa mphamvu pachimake, kotero kuwonjezeka zimachitika m'lifupi zambiri ntchito kutentha conduction kuwotcherera, chifukwa mu lonse ndi osaya weld kukula, makamaka oyenera chilolo kuwotcherera wa mbale woonda ndi wandiweyani.Komabe, mphamvu yotsika kwambiri imabweretsa kutentha kochulukirapo, ndipo chilichonse chimakhala ndi m'lifupi mwake momwe zimakhalira zomwe zimakulitsa kuya kwa kulowa.
Kuchuluka kwa Defocus
Kuwotcherera kwa laser nthawi zambiri kumafuna kuchepetsedwa pang'ono, chifukwa kachulukidwe kamphamvu pakati pa malo pomwe pamayang'aniridwa ndi laser ndiokwera kwambiri, zomwe ndizosavuta kutulutsa zinthu zowotcherera kukhala mabowo.Kugawidwa kwa kachulukidwe ka mphamvu kumakhala kofanana mu ndege iliyonse kutali ndi cholinga cha laser.
Pali mitundu iwiri ya defocus:
Zabwino ndi zoipa defocus.Ngati ndege yolunjika ili pamwamba pa workpiece, ndi defocus zabwino;apo ayi, ndi defocus negative.Malinga ndi geometric Optics chiphunzitso, pamene mtunda pakati pa zabwino ndi zoipa defocusing ndege ndi kuwotcherera ndege ndi wofanana, mphamvu kachulukidwe pa ndege lolingana ndi pafupifupi ofanana, koma kwenikweni, analandira chosungunula dziwe mawonekedwe osiyana.Pankhani ya defocus yoyipa, kulowerera kwakukulu kumatha kupezeka, komwe kumakhudzana ndi mapangidwe a dziwe losungunuka.
Kuthamanga Kwambiri
Kuthamanga kwa kuwotcherera kumatanthawuza mtundu wa kuwotcherera pamwamba, kuya kwa kulowa, malo okhudzidwa ndi kutentha ndi zina zotero.Kuthamanga kwa kuwotcherera kudzakhudza kuyika kwa kutentha pa nthawi ya unit.Ngati liwiro la kuwotcherera lili pang'onopang'ono, kutentha kumakhala kokwera kwambiri, zomwe zimapangitsa kuti chogwirira ntchito chiwotchedwe.Ngati liwiro la kuwotcherera lili mwachangu kwambiri, kulowetsamo kutentha kumakhala kochepa kwambiri, zomwe zimapangitsa kuwotcherera pang'ono komanso kusamalizidwa.Kuchepetsa kuwotcherera liwiro nthawi zambiri ntchito kusintha malowedwe.
Gasi Wothandizira Kuwomba Chitetezo
Gasi wodzitchinjiriza wothandizira ndi njira yofunikira pakuwotcherera kwamphamvu kwa laser.Kumbali imodzi, kuteteza zitsulo kuti zisawonongeke ndikuyipitsa galasi loyang'ana;Kumbali inayi, ndikuletsa plasma yomwe imapangidwa powotcherera kuti isayang'ane kwambiri ndikuletsa laser kuti isafike pamwamba pa zinthuzo.Pakuwotcherera laser, helium, argon, nayitrogeni ndi mpweya wina amagwiritsidwa ntchito kuteteza dziwe losungunuka, kuti ateteze workpiece kuchokera makutidwe ndi okosijeni mu umisiri kuwotcherera.Zinthu monga mtundu wa gasi woteteza, kukula kwa mpweya wotuluka ndi Kuwotchera Kongolera kumakhudza kwambiri zotsatira zowotcherera, komanso njira zowotcherera zosiyanasiyana zidzakhudzanso mtundu wina wa kuwotcherera.
Zowotcherera pamanja za Laser Welder:
Laser Welder - Malo Ogwirira Ntchito
◾ Kutentha kwa malo ogwira ntchito: 15 ~ 35 ℃
◾ Chinyezi chamitundu yogwirira ntchito: <70%Palibe condensation
◾ Kuziziritsa: kuzizira kwamadzi ndikofunikira chifukwa cha ntchito yochotsa kutentha kwa zigawo zotulutsa kutentha kwa laser, kuonetsetsa kuti chowotcherera cha laser chikuyenda bwino.
(Mwatsatanetsatane ntchito ndi kalozera za madzi chiller, mukhoza onani:Njira zowonetsera kuzizira kwa CO2 Laser System)
Mukufuna kudziwa zambiri za Laser Welders?
Nthawi yotumiza: Dec-22-2022