Lokacin zabar siminti na carbide drills, ƙimar daidaiton girman buƙatun hakowa dole ne a fara la'akari da farko. Gabaɗaya magana, ƙaramar buɗaɗɗen da za a sarrafa, ƙarancin haƙuri. Sabili da haka, masana'antun aikin haƙori yawanci suna rarraba ma'auni bisa ga madaidaicin diamita na ramin da ake yin inji. Daga cikin sama hudu iri cemented carbide drills, m cemented carbide drills samun mafi girma machining daidaito (da juna da ragowa da kewayon φ10mm m cemented carbide drills aka 0 ~ 0.03mm), don haka shi ne mafi alhẽri zabi for machining high-daidaici ramuka. The haƙuri kewayon welded siminti carbide drills ko maye gurbin siminti carbide kambi drills ne 0 ~ 0.07mm, wanda ya fi dace da rami aiki tare da janar daidaito bukatun; drills tare da cimined carbide indexable abun da ake sakawa sun fi dacewa da mashin ɗin mai nauyi mai nauyi Ko da yake farashin sarrafa shi yawanci ƙasa da sauran nau'ikan drills, sarrafa shi kuma yana da ƙasa kaɗan, tare da kewayon juriya na 0 ~ 0.3mm (dangane da tsawon zuwa diamita rabo daga cikin rawar soja), don haka shi ne kullum amfani da rami aiki tare da low daidaici , Ko kammala karewa na rami ta maye gurbin m ruwa.
Hakanan ya kamata a yi la'akari da kwanciyar hankali na rawar rawar da kanta. Misali, m carbide drills ne mafi m, don haka za su iya cimma high machining daidaito. Siminti mai ƙididdigewa mai ƙididdigewa abin saka rawar soja yana da ƙarancin kwanciyar hankali kuma yana da saurin juyowa. An shigar da abubuwan sakawa biyu masu ma'ana a kan wannan bit ɗin. Ana amfani da abin da aka saka na ciki don injin tsakiyar rami, kuma ana amfani da abin da ake sakawa don injin gefen waje daga ciki zuwa diamita na waje. Tun da kawai ruwan ciki na ciki ya shiga yankan a matakin farko na sarrafawa, ƙwanƙwasa yana cikin yanayi mara kyau, wanda zai iya sa jikin ya karkata cikin sauƙi, kuma tsawon lokacin da ya fi tsayi, mafi girma yawan juzu'i. Sabili da haka, lokacin amfani da rawar da aka yi amfani da simintin carbide mai ƙima mai ƙima tare da tsayin sama da 4D don hakowa, yakamata a rage abincin da kyau a farkon lokacin hakowa, kuma ƙimar abinci ya kamata a ƙara zuwa matakin al'ada bayan shigar da barga yankan. lokaci .
Abun rawar carbide mai waldaran siminti da simintin kambi mai maye gurbinsa sun ƙunshi gefuna na siminti guda biyu tare da nau'in gefen geometric na kai-da-kai. Wannan babban kwanciyar hankali yankan ƙira ya sa ya zama ba dole ba lokacin yankan cikin workpiece Rage yawan ciyarwa, sai dai lokacin da aka shigar da rawar jiki a hankali kuma a yanke shi a wani kusurwa zuwa saman kayan aikin. A wannan lokacin, ana ba da shawarar rage yawan abincin da kashi 30% zuwa 50% lokacin hakowa a ciki da waje. Saboda jikin karfen irin wannan nau'in nakasar na iya haifar da ƙananan lalacewa, ya dace sosai don sarrafa lathe; yayin da m carbide rawar soja bit ne mafi gaggautsa, yana da sauki ga karya a lokacin da amfani ga lathe aiki, musamman a lokacin da rawar soja bit ba kyau a tsakiya. Wannan gaskiya ne musamman a wasu lokuta.
Cire guntu matsala ce da ba za a iya watsi da ita ba wajen hakowa. Hasali ma, babbar matsalar da ake fuskanta wajen hakowa ita ce rashin cire guntu (musamman lokacin da ake sarrafa ƙananan ƙarfe na ƙarfe), kuma ba za a iya guje wa wannan matsala ba ko da wane irin rawar da ake amfani da ita. Gudanar da bitar sau da yawa yana amfani da allurar sanyaya na waje don taimakawa cire guntu, amma wannan hanyar tana da tasiri ne kawai lokacin da zurfin ramin da aka sarrafa ya yi ƙasa da diamita na ramin kuma an rage matakan yanke. Bugu da kari, dole ne a zaɓi nau'in sanyaya mai dacewa, ƙimar kwarara da matsa lamba don dacewa da diamita na rawar rawar soja. Don kayan aikin inji ba tare da tsarin sanyaya ba a cikin sandal, ya kamata a yi amfani da bututu masu sanyaya. Zurfin ramin da za a sarrafa, da mafi wahalar cire kwakwalwan kwamfuta da girma da matsa lamba na coolant da ake bukata. Don haka, ya kamata a tabbatar da mafi ƙarancin ruwan sanyi da masana'anta suka ba da shawarar. Idan ruwan sanyi bai isa ba, dole ne a rage abincin injin.
Lokacin aikawa: Satumba-07-2021