Samar da maɓallan maɓalli da haɓaka su:
Ma'anar ramin maɓalli: Idan hasken radiation ya fi 10 ^ 6W/cm ^ 2, saman kayan yana narkewa kuma yana ƙafewa ƙarƙashin aikin laser. Lokacin da saurin ƙafewa ya isa, matsin lamba na komawar tururi da aka samar ya isa ya shawo kan matsin lamba na saman da nauyin ruwa na ƙarfen ruwa, ta haka yana fitar da wasu daga cikin ƙarfen ruwa, yana sa tafkin da aka narke a yankin motsawa ya nutse ya samar da ƙananan ramuka; Hasken haske yana aiki kai tsaye a ƙasan ƙaramin ramin, yana sa ƙarfen ya ƙara narkewa da iskar gas. Tururi mai ƙarfi yana ci gaba da tilasta ƙarfen ruwa a ƙasan ramin ya kwarara zuwa gefen tafkin da aka narke, yana ƙara zurfafa ƙaramin ramin. Wannan tsari yana ci gaba, a ƙarshe yana samar da rami kamar maɓalli a cikin ƙarfen ruwa. Lokacin da matsin lamba na tururin ƙarfe da hasken laser ke samarwa a cikin ƙaramin rami ya kai daidaito tare da matsin lamba na saman da nauyi na ƙarfen ruwa, ƙaramin ramin ba ya ƙara zurfafawa kuma yana samar da ƙaramin rami mai zurfi, wanda ake kira "ƙaramin tasirin rami".
Yayin da hasken laser ke motsawa dangane da aikin, ƙaramin ramin yana nuna gaba mai lanƙwasa kaɗan da kuma alwatika mai karkata a baya. Gefen gaba na ƙaramin ramin shine yankin aikin laser, tare da zafin jiki mai yawa da matsin tururi mai yawa, yayin da zafin da ke gefen baya yana da ƙarancin ƙarfi kuma matsin tururin yana da ƙarami. A ƙarƙashin wannan bambancin matsin lamba da zafin jiki, ruwan da ke narkewa yana gudana a kusa da ƙaramin ramin daga ƙarshen gaba zuwa ƙarshen baya, yana samar da vortex a ƙarshen bayan ƙaramin ramin, kuma a ƙarshe yana taurare a gefen baya. Yanayin motsi na ramin maɓalli da aka samu ta hanyar kwaikwayon laser da ainihin walda an nuna shi a cikin hoton da ke sama, Tsarin ƙananan ramuka da kwararar ruwan narkakken da ke kewaye yayin tafiya a cikin gudu daban-daban.
Saboda ƙananan ramuka, ƙarfin hasken laser yana shiga cikin kayan, yana samar da wannan babban ɗinkin walda mai zurfi da kunkuntar. An nuna yanayin giciye na yau da kullun na ɗinkin walda mai zurfi na laser a cikin hoton da ke sama. Zurfin shigar walda na dinkin walda yana kusa da zurfin ramin maɓalli (a zahiri, layin ƙarfe yana da zurfi fiye da ramin maɓalli 60-100um, ƙaramin Layer na ruwa ɗaya). Mafi girman yawan kuzarin laser, zurfin ƙaramin rami, da kuma zurfin shigar walda. A cikin walda mai ƙarfin laser mai ƙarfi, matsakaicin rabon zurfin zuwa faɗin ɗinkin walda na iya kaiwa 12:1.
Binciken shanmakamashin laserta hanyar ramin maɓalli
Kafin samuwar ƙananan ramuka da plasma, makamashin laser galibi ana watsa shi zuwa cikin kayan aikin ta hanyar watsa zafi. Tsarin walda yana aiki ne ta hanyar walda mai sarrafawa (tare da zurfin shigar ciki ƙasa da 0.5mm), kuma yawan shan laser ɗin yana tsakanin 25-45%. Da zarar an samar da ramin maɓalli, makamashin laser ɗin galibi yana sha ne ta hanyar cikin kayan aikin ta hanyar tasirin ramin maɓalli, kuma tsarin walda ya zama walda mai zurfi mai shiga ciki (tare da zurfin shigar ciki fiye da 0.5mm), ƙimar sha zai iya kaiwa sama da 60-90%.
Tasirin ramin maɓalli yana taka muhimmiyar rawa wajen haɓaka shan laser yayin sarrafawa kamar walda ta laser, yankewa, da haƙa rami. Hasken laser da ke shiga ramin maɓalli kusan yana sha gaba ɗaya ta hanyar tunani da yawa daga bangon ramin.
Gabaɗaya ana kyautata zaton cewa hanyar shan makamashi ta laser a cikin ramin maɓalli ta ƙunshi hanyoyi guda biyu: shawar baya da shawar Fresnel.
Daidaiton matsin lamba a cikin ramin maɓalli
A lokacin walda mai zurfi ta hanyar laser, kayan suna fuskantar tururi mai tsanani, kuma matsin lamba na faɗaɗawa da tururin zafi mai zafi ke haifarwa yana fitar da ƙarfen ruwa, yana samar da ƙananan ramuka. Baya ga matsin lamba na tururi da matsin lamba na ablation (wanda kuma aka sani da ƙarfin amsawar evaporation ko matsin lamba na recoil) na kayan, akwai kuma matsin lamba na saman, matsin lamba na ruwa mai tsauri wanda nauyi ke haifarwa, da matsin lamba mai ƙarfi na ruwa wanda kwararar abu mai narkewa a cikin ƙaramin rami ke haifarwa. Daga cikin waɗannan matsin lamba, matsin lamba na tururi ne kawai ke kiyaye buɗewar ƙaramin ramin, yayin da sauran ƙarfi uku ke ƙoƙarin rufe ƙaramin ramin. Don kiyaye daidaiton ramin maɓalli yayin aikin walda, matsin lamba na tururi dole ne ya isa ya shawo kan wasu juriya da cimma daidaito, yana kiyaye daidaiton ramin maɓalli na dogon lokaci. Don sauƙi, gabaɗaya ana yarda cewa ƙarfin da ke aiki akan bangon ramin maɓalli galibi matsin lamba na ablation (matsin lamba na recoil na ƙarfe) da matsin lamba na saman.
Rashin kwanciyar hankali na Maɓallin Maɓalli
Bayan Fage: Laser yana aiki a saman kayan, yana haifar da ƙafewar ƙarfe mai yawa. Matsin komawa baya yana matsawa kan wurin narkakken, yana samar da ramukan maɓalli da plasma, wanda ke haifar da ƙaruwar zurfin narkewa. A lokacin motsi, laser ɗin yana buga bangon gaba na ramin maɓalli, kuma matsayin da laser ɗin ya haɗu da kayan zai haifar da ƙafewar kayan sosai. A lokaci guda, bangon ramin maɓalli zai fuskanci asarar taro, kuma ƙafewar zai samar da matsin komawa baya wanda zai matse ƙarfen ruwa, wanda zai sa bangon ciki na ramin maɓalli ya canza ƙasa ya kuma motsa a kusa da ƙasan ramin zuwa bayan tafkin narkakken. Saboda canjin wurin narkakken ruwa daga bangon gaba zuwa bangon baya, ƙarar da ke cikin ramin maɓalli yana canzawa koyaushe. Matsin ciki na ramin maɓalli kuma yana canzawa daidai gwargwado, wanda ke haifar da canji a cikin ƙarar plasma da aka fesa. Canjin ƙarar plasma yana haifar da canje-canje a cikin kariya, ja da baya, da shaƙar makamashin laser, wanda ke haifar da canje-canje a cikin kuzarin laser ɗin da ke kaiwa saman kayan. Duk tsarin yana da ƙarfi kuma yana faruwa lokaci-lokaci, wanda a ƙarshe ke haifar da shigar ƙarfe mai siffar sawtooth da kuma raɓa, kuma babu wani walda mai santsi daidai da shigarwa. Hoton da ke sama yana nuna ɓangaren giciye na tsakiyar walda da aka samu ta hanyar yankewa na tsayi daidai da tsakiyar walda, da kuma ma'aunin ainihin lokacin bambancin zurfin ramin maɓalli ta hanyarIPG-LDD a matsayin shaida.
Inganta alkiblar kwanciyar hankali na ramin maɓalli
A lokacin walda mai zurfi ta hanyar laser, kwanciyar hankalin ƙaramin ramin zai iya tabbata ne kawai ta hanyar daidaita matsin lamba daban-daban a cikin ramin. Duk da haka, shan makamashin laser ta bangon ramin da kuma fitar da kayan aiki, fitar da tururin ƙarfe a wajen ƙaramin ramin, da kuma motsi gaba na ƙaramin ramin da wurin narkar da narkakken tafkin duk matakai ne masu tsanani da sauri. A ƙarƙashin wasu yanayi na tsari, a wasu lokutan yayin aikin walda, akwai yiwuwar kwanciyar hankalin ƙaramin ramin ya lalace a yankunan gida, wanda ke haifar da lahani ga walda. Mafi yawan waɗanda aka saba gani kuma aka fi sani da su sune ƙananan lahani na porosity na nau'in rami da kuma fashewar ramukan maɓalli da ke haifarwa;
To ta yaya za a daidaita maɓalli?
Sauyin ruwan ramin maɓalli yana da sarkakiya kuma ya ƙunshi abubuwa da yawa (filin zafin jiki, filin kwarara, filin ƙarfi, kimiyyar optoelectronic), wanda za a iya taƙaita shi cikin rukuni biyu: alaƙar da ke tsakanin tashin hankali a saman da matsin lamba na jan ƙarfe; Matsin lamba na jan ƙarfe yana aiki kai tsaye akan samar da ramukan maɓalli, wanda ke da alaƙa da zurfin da girman ramukan maɓalli. A lokaci guda, a matsayin abu ɗaya tilo da ke motsawa sama da tururin ƙarfe a cikin tsarin walda, yana da alaƙa da faruwar fashewar; Tashin hankali a saman yana shafar kwararar tafkin da aka narke;
Don haka tsarin walda na laser mai karko ya dogara ne akan kiyaye yanayin rarrabawar tashin hankali a saman tafkin da aka narke, ba tare da yawan canji ba. Tashin hankali a saman yana da alaƙa da rarrabawar zafin jiki, kuma rarrabawar zafin jiki yana da alaƙa da tushen zafi. Saboda haka, tushen zafi mai haɗaka da walda mai juyawa sune hanyoyin fasaha masu yuwuwa don tsarin walda mai karko;
Tururin ƙarfe da girman ramin maɓalli suna buƙatar kulawa da tasirin plasma da girman buɗewar ramin maɓalli. Girman buɗewa, girman ramin maɓalli, da kuma ƙarancin canjin da ke ƙasan wurin narkewa, waɗanda ke da ɗan tasiri ga jimlar girman ramin maɓalli da canje-canjen matsin lamba na ciki; Don haka laser yanayin zobe mai daidaitawa (tabo na annular), sake haɗa baka na laser, daidaitawar mita, da sauransu duk alkibla ne da za a iya faɗaɗawa.
Lokacin Saƙo: Disamba-01-2023
