Muchikamu chikuru chezvishandiso zvakaumba budiriro yemunhu, kubva kune yakazvininipisa lever kusvika kune yakaoma microchip, chishandiso chimwe chinomira pachena nekuzara kwayo, kuve nyore, uye kwakadzama kukanganisa: iyostraight shank twist drill bit. Ichi chimedu chesimbi chisingaremekedzi, chine migero yaro yakanyatsogadzirwa, ndicho chiridzwa chakakosha chekugadzira uye kubatanidza, chinowanikwa muwekishopu yega yega, fekitori, uye imba kutenderera pasirese. Ndiyo kiyi inovhura kugona kwezvinhu zvakasimba, zvichiita kuti tibatane, kusungirira, uye kugadzira nemazvo asingaenzaniswi.
Nepo chiito chekuchera chave chekare, kubvira kare kare uchishandisa matombo akarodzwa neuta, chibooreso chemazuva ano chigadzirwa cheIndustrial Revolution. Hutsva hwakakosha hwaive kugadzirwa kwenyere yayo, kana kuti spiral groove. Basa rekutanga reiyi groove rakapetwa kaviri: kunyatso chiteshi machipisi (iyo tsvina) kure nechiso chekucheka uye kunze kwegomba riri kucherwa, uye kubvumira yekucheka mvura kuti isvike pakubata. Izvi zvinodzivirira kupisa zvakanyanya, zvinoderedza kukweshana, uye zvinoita kuti pave negomba rakachena, rakarurama. Nepo spiral grooves inogona kuve ne 2, 3 kana kupfuura grooves, 2-nyere dhizaini inoramba iri yakajairika, ichipa yakaringana chiyero chekucheka kumhanya, chip kubviswa, uye bit simba.
Iko kuita kwakasiyana-siyana kweiyo yakatwasuka shank twist drill bit yakavharirwa muzita rayo. Iyo "shank yakatwasuka" inoreva kumagumo ecylindrical yebhiti iyo yakasungirirwa muchuck yechishandiso. Iyi dhizaini yepasirese ndiro simba rayo guru, rinogonesa kuenderana nehuwandu hunoshamisa hwemichina. Inogona kusungirirwa zvakachengetedzeka muchibooreso chemaoko, chidhiraivho chine simba chemagetsi chinobata ruoko, kana muchina wakakura wakamira wekuchera. Uyezve, kushandiswa kwayo kunowedzera kupfuura yakatsaurirwa michina yekuchera; chinhu chakajairwa chekushandisa mumichina yekugaya, lathes, uye kunyange yakaomesesa inodzorwa nekombuta-inodzorwa machining nzvimbo. Iyi yepasirese inoita kuti ive lingua franca yenyika yemachina.
Kuumbwa kwezvinhu zvedrill bitrinoenderana nebasa rayo. Izvo zvinonyanya kuzivikanwa ndeye High-Speed Steel (HSS), giredhi yakanyatsogadzirwa yesimbi yemidziyo inochengeta kuomarara kwayo uye kuchekwa kwekucheka kunyangwe pakupisa kwakanyanya kunokonzerwa nekukwesha. HSS bits inogara kwenguva refu uye inodhura-inoshanda, yakakodzera kuchera muhuni, plastiki, uye simbi zhinji. Pazvishandiso zvinonyanya kudiwa, sekuchera kuburikidza nezvinhu zvinokurisa zvakaita sedombo, kongiri, kana simbi dzakaomarara zvakanyanya, zviboorero zvecarbide kana yakasimba carbide zvinoshandiswa. Carbide, chinhu chakaumbwa chine tungsten carbide zvidimbu zvakasungwa necobalt, yakanyanya kuoma kupfuura HSS uye inopa hukuru hwepamusoro kupfeka kuramba, kunyangwe iri zvakare brittle.
Kubva pakuunganidzwa kwezvinhu zvemuchadenga kusvika pakugadzira fenicha yakanaka, iyo yakatwasuka shank twist drill bit chinhu chakakosha chinogonesa. Icho chapupu chepfungwa yekuti magadzirirwo anonyanya kukanganisa kazhinji ndeaya anoita basa rimwechete, rakakosha riine humbowo husingakanganisi. Haisi chombo chete; ndiyo hwaro pakavakirwa kugadzirwa kwemazuva ano uye hunyanzvi hweDIY, gomba rimwe chairo panguva.
Nguva yekutumira: Aug-14-2025
