Izici ze-PCB micro-hole mechanical drilling

Kulezi zinsuku, ngokubuyekezwa okusheshayo kwemikhiqizo ye-elekthronikhi, ukuphrinta kwama-PCB kunwetshiwe kusukela kumabhodi angaphambili anesendlalelo esisodwa kuya kumabhodi anezingqimba ezimbili kanye namabhodi anezingqimba eziningi anezidingo zokunemba okuphezulu. Ngakho-ke, kunezidingo ezengeziwe zokucubungula izimbobo zebhodi lesifunda, njengokuthi: ububanzi bembobo buba buncane futhi bube buncane, futhi ibanga phakathi komgodi nomgodi liya lincane futhi libe lincane. Kuyaqondakala ukuthi ifekthri yebhodi okwamanje isebenzisa izinto ezihlanganisiwe ezisekelwe epoxy resin. Incazelo yobukhulu bomgodi ukuthi ububanzi bungaphansi kuka-0.6 mm wezimbobo ezincane kanye no-0.3 mm wama-micropores. Namuhla ngizokwethula indlela yokucubungula yezimbobo ezincane: ukumba ngomshini.

Ukuze siqinisekise ukusebenza kahle okuphezulu kokucubungula kanye nekhwalithi yembobo, sinciphisa ingxenye yemikhiqizo enesici. Enkambweni yokubhoboza ngomshini, izici ezimbili, amandla e-axial kanye ne-torque yokusika, kufanele kucatshangelwe, okungase kuthinte ngokuqondile noma ngokungaqondile ikhwalithi yomgodi. Amandla e-axial kanye ne-torque azokhula ngokuphakelayo kanye nobukhulu besendlalelo sokusika, khona-ke isivinini sokusika sizokhula, ukuze inani lemicu enqunywe ngesikhathi seyunithi lizokwanda, futhi ukugqoka kwamathuluzi kuzokwanda ngokushesha. Ngakho-ke, impilo ye-drill ihlukile emigodini yobukhulu obuhlukene. Umsebenzisi kufanele ajwayele ukusebenza kwemishini futhi abuyisele umshini wokubhola kusenesikhathi. Yingakho izindleko zokucubungula izimbobo ezincane ziphezulu.

Emandleni e-axial, ingxenye emile i-FS ithinta ukusikwa kwe-Guangde, kuyilapho ingxenye eguquguqukayo ye-FD ithinta ikakhulukazi ukusika konqenqema oluyinhloko. Ingxenye eguquguqukayo ye-FD inomthelela omkhulu ekumangelekeni kwendawo kunengxenye emile i-FS. Ngokuvamile, lapho indawo yokuvula imbobo eyenziwe ngaphambilini ingaphansi kuka-0.4mm, ingxenye emile i-FS yehla kakhulu ngokunyuka kwendawo yokuvula, kuyilapho inkambiso yengxenye eguqukayo ye-FD iyancipha iyisicaba.

Ukuguga kwe-PCB drill kuhlobene nesivinini sokusika, izinga lokuphakelayo, nosayizi wesikhala. Isilinganiso se-radius ye-drill bit kuya kububanzi be-fibre yengilazi sinomthelela omkhulu empilweni yamathuluzi. Uma isilinganiso sikhulu, ububanzi benqwaba yefiber esikwa ithuluzi bukhulu, nokwenyuka kwamathuluzi okuguga. Ekusetshenzisweni okungokoqobo, impilo ye-drill engu-0.3mm ingabhoboza izimbobo ezingu-3000. Uma i-drill inkulu, izimbobo ezimbalwa ziyabhora.

Ukuze sigweme izinkinga ezifana ne-delamination, umonakalo odongeni lwembobo, amabala, nama-burrs lapho kubholwa, singaqala sibeke iphedi eliwugqinsi elingu-2.5 mm ngaphansi kongqimba, sibeke ipuleti eligqoke ithusi phezu kwephedi, bese Sibeka ishidi le-aluminium phezu ibhodi eligqoke ithusi. Indima yeshidi le-aluminium 1. Ukuvikela ubuso bebhodi kusuka emihuzuko. 2. Ukukhipha ukushisa okuhle, i-drill bit izokhipha ukushisa lapho kubhoboza. 3. Umphumela wokubhafa/umphumela wokubhoboza ukuvimbela imbobo yokuchezuka. Indlela yokunciphisa ama-burrs ukusetshenziswa kobuchwepheshe bokugaya i-vibration, kusetshenziswa imishini ye-carbide ukubhola, ubulukhuni obuhle, kanye nobukhulu nokwakheka kwethuluzi nakho kudinga ukulungiswa.