Ukusetyenzwa kweLaser kuqhelekile kubomi bethu bemihla ngemihla kwaye uninzi lwethu luqhelene nalo. Usenokuva ukuba amagama nanosecond laser, picosecond laser, femtosecond laser. Bonke beze-laser ultrafast. Kodwa ngaba uyayazi indlela yokuzahlula?
Okokuqala, makhe sibone ukuba zithetha ukuthini ezi “zesibini”.
1 nanosecond = 10
-9 Isibini
1 picosecon = 10
-12 Isibini
1 femtosecond = 10
-15 Isibini
Ke ngoko, umahluko omkhulu phakathi kwe-nanosecond laser, i-picosecond laser kunye ne-laser ye-femtosecond ilele kwixesha labo.
Intsingiselo ye-laser utlrafastKwakudala, abantu bazama ukusebenzisa i-laser ukwenza i-micromachining. Nangona kunjalo, ekubeni i-laser yendabuko inobubanzi be-pulse ubude kunye nobukhulu be-laser obuphantsi, izixhobo eziza kucutshungulwa kulula ukunyibilika kwaye zihlale zingumphunga. Nangona umqa welaser unokujoliswa kwindawo encinci kakhulu yelaser, impembelelo yobushushu kwizinto isenkulu kakhulu, ethintela ukuchaneka kokusetyenzwa. Ukunciphisa kuphela umphumo wokushisa kunokuphucula umgangatho wokucubungula.
Kodwa xa i-laser ye-ultrafast isebenza kwizinto eziphathekayo, umphumo wokucubungula unotshintsho olukhulu. Njengoko amandla e-pulse enyuka ngokumangalisayo, uxinaniso lwamandla aphezulu lunamandla ngokwaneleyo okucima ii-elektroniki zangaphandle. Kuba unxibelelwano phakathi kwe-laser ye-ultrafast kunye nezixhobo zifutshane kakhulu, i-ion sele ikhutshiwe kumphezulu wezinto ngaphambi kokuba idlulise amandla kwizinto ezijikelezileyo, ke akukho siphumo sobushushu siya kuziswa kwizinto ezijikelezileyo. Ke ngoko, ukusetyenzwa kwe-laser kwe-ultrafast kukwabizwa ngokuba kukusetyenzwa okubandayo.
Kukho iintlobo ngeentlobo zezicelo ze-laser ye-ultrafast kwimveliso yamashishini. Ngezantsi siza kukhankanya ezimbalwa:
1.Ukwemba umngxumaKuyilo lwebhodi yesekethe, abantu baqala ukusebenzisa isiseko se-ceramics ukuze bathathe indawo yesiseko seplastiki yemveli ukuqonda ubushushu obungcono. Ukuze udibanise amacandelo e-elektroniki, amawaka ama-μm kwinqanaba lemingxuma emincinci kufuneka abhotywe ebhodini. Ke ngoko, ukugcina isiseko sizinzile ngaphandle kokuphazamiseka kwigalelo lobushushu ngexesha lokugrumba umngxuma sele kubaluleke kakhulu. Kwaye picosecond lase sisixhobo esifanelekileyo.
I-laser ye-Picosecond ibona ukugrunjwa komngxuma nge-percussion iyadika kwaye igcina ukufana komngxuma. Ukongeza kwibhodi yesekethe, i-picosecond laser ikwasebenza ukwenza umgangatho ophezulu wokomba umngxuma kwifilimu yeplastiki encinci, i-semiconductor, ifilimu yesinyithi kunye nesafire.
2.Ukukrola kunye nokusikaUmgca unokusekwa ngokuskena okuqhubekayo ukugubungela i-laser pulse. Oku kufuna isixa esikhulu sokuskena ukuze ungene nzulu ngaphakathi kweekeramics de umgca ufikelele kwi-1/6 yobukhulu bezinto. Emva koko uhlukanise imodyuli nganye kwisiseko se-ceramics kunye nale migca. Olu hlobo lokwahlula lubizwa ngokuba ngu-scribing.
Enye indlela yokwahlula kukusika i-pulse laser ablation. Kufuna ukucinywa kwempahla de kube kunqunyulwe ngokupheleleyo.
Ukubhala oku ngasentla kunye nokusika, i-picosecond laser kunye ne-nanosecond laser zezona zikhetho ezifanelekileyo.
3.Ukususwa kokugqumaOlunye usetyenziso lwe-micromachining ye-laser ye-ultrafast kukususwa kokutyabeka. Oku kuthetha ukususa ngokuchanekileyo isambatho ngaphandle kokonakalisa okanye ukonakalisa kancinci izinto zesiseko. Ukukhutshwa kunokuba yimigca yeemicrometer ezininzi ububanzi okanye isikali esikhulu seesentimitha ezininzi zesikwere. Ekubeni ububanzi bengubo buncinci kakhulu kunobubanzi be-ablation, ubushushu abuyi kudlulisela kwicala. Oku kwenza i-nanosecond laser ifaneleke kakhulu.
I-Ultrafast laser inamandla amakhulu kunye nekamva elithembisayo. Ayinamsebenzi wasemva kokulungiswa okufunekayo, ukulula kokudibanisa, ukusebenza kakuhle okuphezulu, ukusetyenziswa kwezinto eziphantsi, ungcoliseko oluphantsi lokusingqongileyo. Isetyenziswe ngokubanzi kwimoto, i-electronics, isixhobo, ukuveliswa koomatshini, njl njl. Ukugcina i-laser ye-ultrafast isebenza ngokuchanekileyo kwixesha elide, ubushushu bayo kufuneka bugcinwe kakuhle. S&A Teyu CWUP seriesizixhobo zokupholisa amanzi eziphathwayo zilungele kakhulu ukupholisa iilaser ezikhawulezayo ukuya kuthi ga kwi-30W. Ezi yunithi ze-laser chiller zibonisa umgangatho ophezulu kakhulu wokuchaneka kwe-±0.1℃ kunye nokuxhasa umsebenzi wonxibelelwano we-Modbus 485. Ngombhobho oyilwe ngokufanelekileyo, ithuba lokuvelisa iqamza lincinci kakhulu, elithoba impembelelo kwi-laser ekhawulezayo.
