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Inoenderera Wave Laser
CW, acronym ye "Continuous Wave," inoreva malaser masisitimu anokwanisa kupa isina kukanganiswa kubuda kwelaser panguva yekushanda. Inoratidzwa nekugona kwavo kuburitsa laser nguva nenguva kusvika kuvhiyiwa kwapera, CW lasers inosiyaniswa neiyo yakaderera peak simba uye yepamusoro avhareji simba mukuenzanisa nedzimwe mhando dzemalaser.
Yakakura-siyana Applications
Nekuda kwekuenderera kwavo kuburitsa chimiro, CW lasers inowana kushandiswa kwakakura muminda senge simbi yekucheka uye welding yemhangura nealuminium, ichivaita pakati peanonyanya kushandiswa uye anoshandiswa zvakanyanya mhando dzemalaser. Kugona kwavo kuendesa simba rakadzikama uye rinoenderana rinovaita kuti vakoshese mune zvese zviri zviviri magadzirirwo nemagadzirirwo akawanda.
Process Adjustment Parameters
Kugadzirisa CW laser kune yakakwana maitiro ekuita kunosanganisira kutarisa kune akati wandei akakosha paramita, kusanganisira simba waveform, defocus huwandu, danda dhayamita, uye kumhanya kwekugadzirisa. Kunyatsogadzirisa kweaya ma paramita kwakakosha kuti uwane yakanakisa kugadzirisa mhedzisiro, kuve nechokwadi chekushanda uye kunaka mu laser machining mashandiro.
Inoenderera mberi Laser Energy Diagram
Mamiriro Ekupa Masimba
Chinocherechedzwa hunhu hweCW lasers kugovera kwavo kweGaussian simba, uko kugovaniswa kwesimba kwelaser beam muchinjiko-chikamu kunodzikira kubva pakati kuenda kunze mune yeGaussian (yakajairika kugovera) patani. Iyi hunhu hwekugovera inobvumira CW lasers kuti iwane yakanyanya kutarisisa chaiyo uye kugadzirisa kunyatsoita, kunyanya mumashandisirwo anoda kuisirwa simba rekuisa.
CW Laser Energy Distribution Diagram
Zvakanakira Continuous Wave (CW) Laser Welding
Microstructural Perspective
Kuongorora iyo microstructure yesimbi kunoratidza akasiyana mabhenefiti eContinuous Wave (CW) laser welding pamusoro peQuasi-Continuous Wave (QCW) pulse welding. QCW pulse welding, inomanikidzwa neayo frequency muganho, kazhinji yakatenderedza 500Hz, inotarisana nekutengeserana pakati pehuwandu hwekupindirana uye kudzika kwekupinda. Kudzikira kupindirana kwemwero kunoguma nekusadzika kwakaringana, nepo mwero wepamusoro wepamusoro uchiganhurira kumhanya kwewelding, kuderedza kushanda zvakanaka. Kusiyana neizvi, CW laser welding, kuburikidza nekusarudzwa kweakakodzera laser core diameters uye welding misoro, inobudirira uye inoenderera welding. Iyi nzira inoratidza kunyanya kuvimbika mumashandisirwo anoda chisimbiso chepamusoro.
Thermal Impact Kufunga
Kubva pakuona kwekupisa kwekupisa, QCW pulse laser welding inotambura nenyaya yekupindirana, zvichiita kuti kudzokororwe kupisa kweiyo weld seam. Izvi zvinogona kuunza kusapindirana pakati pesimbi ye microstructure uye zvinhu zvevabereki, kusanganisira kusiyanisa kwehukuru hwekubvisa uye kutonhora kwemazinga, nekudaro zvichiwedzera njodzi yekutsemuka. CW laser welding, kune rumwe rutivi, inodzivirira iyi nyaya nekupa imwe yunifomu uye inoenderera yekudziya maitiro.
Kureruka Kwekugadzirisa
Panyaya yekushanda uye kugadzirisa, QCW laser welding inoda kurongeka kwakadzikama kweakati wandei paramita, kusanganisira pulse repetition frequency, peak simba, pulse width, duty cycle, nezvimwe. CW laser welding inorerutsa maitiro ekugadzirisa, achitarisa zvakanyanya pane waveform, kumhanya, simba, uye defocus huwandu, zvakanyanya kurerutsa kuoma kwekushanda.
Tekinoroji Kufambira mberi muCW Laser Welding
Nepo QCW laser welding ichizivikanwa nekuda kwesimba rayo repamusoro-soro uye yakaderera yekupisa yekuisa, inobatsira pakutsvaira zvinhu zvinonzwa kupisa uye zvakanyanya kutetepa-madziro zvinhu, kufambira mberi muCW laser welding tekinoroji, kunyanya kune yakakwirira-simba maapplication (kazhinji pamusoro pe500 watts) uye yakadzika yekupinda welding yakavakirwa pane keyhole mhedzisiro, yakawedzera zvakanyanya dhizaini yayo yekushandisa uye kugona. Rudzi urwu rwelaser inonyanya kukodzera zvinhu zvakakora kupfuura 1mm, kuwana yakakwira mareshiyo (kupfuura 8: 1) kunyangwe yakanyanya kupisa kupisa.
Quasi-inoenderera mberi Wave (QCW) Laser Welding
Yakatarisana Nesimba Kugovera
QCW, inomirira "Quasi-Continuous Wave," inomiririra tekinoroji yelaser uko laser inoburitsa mwenje nenzira isingaenderere mberi, sekuratidzwa pamufananidzo a. Kusiyana neiyo yunifomu yekugovera simba kweimwe-modhi inoenderera mberi lasers, QCW lasers inotarisisa simba ravo zvakanyanya. Hunhu uhu hunopa QCW lasers hukuru hwesimba density, ichiturikira mukugona kwakasimba kwekupinda. Mhedzisiro yemetallurgical inoguma yakafanana ne "chipikiri" chimiro chine kudzika-kusvika-kufara chiyero, zvichibvumira QCW lasers kuti ibudirire mumashandisirwo anosanganisira aru-reflectance alloys, kupisa-sensitive materials, uye precision micro-welding.
Kuwedzerwa Kugadzikana uye Kuderedza Plume Kupindira
Imwe yemabhenefiti eQCW laser welding kugona kwayo kudzikamisa mhedzisiro yesimbi plume pachiyero chekunyudzwa kwezvinhu, zvichitungamira kune yakagadzikana maitiro. Panguva yekudyidzana kwelaser-material, kunyungudika kwakanyanya kunogona kugadzira musanganiswa wesimbi mhute neplasma pamusoro pedziva rekunyunguduka, rinowanzo kunzi simbi plume. Iyi plume inogona kuchengetedza iyo yepasi kubva kune laser, ichikonzera kusagadzikana kwemagetsi kuburitsa uye kukanganisa senge spatter, nzvimbo dzinoputika, uye makomba. Nekudaro, iyo inopindirana kubuda kweQCW lasers (semuenzaniso, 5ms kuputika ichiteverwa negumi ms pause) inova nechokwadi chekuti laser pulse yega yega inosvika pamusoro pechinhu chisina kukanganiswa nesimbi plume, zvichikonzera kugadzikana kwakagadzikana kwewelding process, kunyanya inobatsira kune yakatetepa-shizha welding.
Yakagadzikana Melt Pool Dynamics
Masimba echidziva chekunyunguduka, kunyanya maererano nemasimba anoshanda pane kiyi hole, akakosha pakuona kunaka kweiyo weld. Anoenderera mberi lasers, nekuda kwekuratidzwa kwawo kwenguva refu uye nzvimbo dzakakura dzakakanganiswa nekupisa, anowanzo kugadzira madziva makuru ekunyunguduka akazadzwa nesimbi yemvura. Izvi zvinogona kutungamirira kukuremara kwakabatana nemadziva makuru akanyunguduka, senge keyhole kudonha. Kusiyana neizvi, simba rakatariswa uye ipfupi yekudyidzana nguva yeQCW laser welding inotarisa dziva rakanyunguduka rakatenderedza kiyi, zvichikonzera kupararira kwesimba rakafanana uye kuderera kwechiitiko cheporosity, kuputika, uye spatter.
Nzvimbo Yakaderedzwa Kupisa-Kukanganiswa (HAZ)
Inoenderera mberi laser welding inoisa zvinhu kuti zvirambe zvichipisa, zvichitungamira kune yakakosha kupisa conduction mune izvo zvinhu. Izvi zvinogona kukonzeresa kusada kwemafuta deformation uye kusagadzikana-kukonzeresa kukanganisa mune zvitete zvinhu. QCW lasers, nekushanda kwavo kwepakati, inobvumira zvinhu nguva kuti itonhore, nekudaro kuderedza nzvimbo inokanganisa kupisa uye kupinza kwemafuta. Izvi zvinoita kuti QCW laser welding inyanyokodzera zvinhu zvitete uye izvo zviri pedyo nekupisa-sensitive zvikamu.
Higher Peak Power
Kunyangwe kuve neavhareji simba seanoenderera mberi lasers, QCW lasers inowana yakakwirira yepamusoro masimba uye simba densities, zvichikonzera kudzika kwakadzika uye kwakasimba welding kugona. Iyi bhenefiti inonyanya kutaurwa muwelding yemhangura uye aruminiyamu alloys 'matete mapepa. Kusiyana neizvi, ma lasers anoenderera ane avhareji simba anogona kutadza kuita mucherechedzo pamusoro pechinhu nekuda kwekuderera kwesimba density, zvichitungamira kukufungisisa. High-simba inoenderera mberi lasers, nepo ichikwanisa kunyungudutsa zvinhu, inogona kuona kuwedzera kwakanyanya kwekunyura mushure mekunyunguduka, zvichikonzera kudzika kusingadzoreki kunyunguduka uye yekupisa yekupinza, iyo isingakodzere kutetepa-shiti welding uye inogona kukonzera kusamaka kana kupisa. -kuburikidza, kutadza kuita zvinodiwa pakuita.
Kuenzanisa kwemhedzisiro yewelding pakati peCW neQCW lasers
a. Inoenderera Wave (CW) Laser:
- Kuonekwa kwe-laser-sealed nail
- Kuonekwa kweiyo yakatwasuka weld seam
- Schematic diagram ye laser emission
- Longitudinal cross-section
b. Quasi-inoenderera mberi Wave (QCW) Laser:
- Kuonekwa kwe-laser-sealed nail
- Kuonekwa kweiyo yakatwasuka weld seam
- Schematic diagram ye laser emission
- Longitudinal cross-section
- * Kwakabva: Chinyorwa naWildong, kuburikidza neWeChat Public Account LaserLWM.
- * Chekutanga chinyorwa chinongedzo: https://mp.weixin.qq.com/s/8uCC5jARz3dcgP4zusu-FA.
- Zviri muchinyorwa chino zvakapihwa zvekudzidza nekutaurirana chete, uye kodzero dzese ndedzemunyori wekutanga. Kana kukanganisa kwekodzero kuchibatanidzwa, tapota taura kuti ubvise.
Nguva yekutumira: Mar-05-2024