Izinhlobo zomsebenzi wokhuni
Ukusebenza ngokhuni kwenziwa ikakhulukazi ngemishini ehlukene yokwenza izinkuni. Amathuluzi okubaza ngesandla asetshenziswa njengezinsiza zokuhlanganisa kanye nokushayela imikhiqizo emigodini, njll. Kunezinhlobo ezilandelayo zokucubungula ukhuni emishinini: ukusika, ukusaha, ukugaya, ukubhoreka, ukubhola, ukuhlela nokufaka isihlabathi (Fig. 1). Amasaha ohlaka, amasaha ayindilinga namaphuzu, imimese yokusika nokuklwebha, izinto zokusika, izimbobo, amaketango, amashizolo kanye nephepha lesandpaper kusetshenziswa njengamathuluzi okusika, ukusika nokushelela.
Isithombe 1 — Izinhlobo zokucutshungulwa kwezinkuni: a — ukusika; b - ukusika; c - ukugaya; d - ukugaya; e - ukuhlanza; f - ukugaya.
Ama-blades nama-engeli awo
Amathuluzi okusika, asetshenziselwa ukucubungula izinkuni, ahlala ene-wedges eyodwa noma amaningana. Ngakho-ke, isibonelo, amazinyo efreyimu, amasaha ayindilinga kanye namabhande, ama-blades emimese yokuhlubuka, amazinyo abasiki be-milling, njll. anesimo se-wedges ebukhali eyenza ukusika. Ukuze lawa ma-blades amise okwe-wedge akwazi ukusika izinkuni ngokukhiqiza okuphezulu futhi anikeze ikhwalithi yokucubungula eyanelisayo, kuyadingeka ukuthi abe e-engeli ethile emiculweni yezinkuni futhi abe nosayizi nokuma okuthile.
Kula mathuluzi okusika, asetshenziselwa ukwenza izinkuni, kunama-engeli alandelayo: i-engeli yokusika, ekhonjiswa ngohlamvu u-δ, i-engeli ebukhali - ngohlamvu β, i-engeli yangaphambili - ngohlamvu γ, i-angle yangemuva - ngohlamvu α. Isamba se-engeli yangemuva kanye ne-engeli elolayo njalo kunikeza i-engeliδ = α + β(fig.2).
Isithombe2- Izakhi ze-angular ze-blade.
Ukuze kuzuzwe ukuhlanzeka okuphezulu kokucutshungulwa kwezinkuni kanye nokuchitha umsebenzi omncane ngangokunokwenzeka ekusikeni, kuyadingeka ukukhetha i-angle yokusika evumayo kakhulu, i-angle yokuqinisa, i-angle yokusika yangaphambili nangemuva ngokusho kohlobo lwezinkuni, umswakama walo kanye nesiqondiso sokusika. Njenge-engeli encane yokulola, i-engeli yokuthi30°; i-angle yesiqondiso sokunyakaza kommese noma i-angle yangemuva ithathwa10-15°; i-angle yokusika ithathwa45-74°.
Ukusika indlela ebheke kumafayibha
Ngokwesiqondiso sokusika ngokuphathelene nezintambo zokhuni, kunezimo ezintathu eziyinhloko zokusika: ezingaphambili, ubude nobubanzi (fig. 3). Ukusikwa okuhlanzekile kwe-longitudinal, transverse kanye nangaphambili kwenziwa kuyaqabukela, ngoba ummese ngesikhathi somsebenzi uhlala ukwi-engeli ethile ohlamvini lokhuni.
Image 3 — Izimo ezintathu eziyinhloko zokusika izinkuni: a — frontal; b - ubude; c - phambene.
Ukucija ithuluzi
Ithuluzi lokusika lilolwa emishinini yokulola okukhethekile noma ngesandla, ngeqiniso lokuthi ithuluzi lokusika, ngemva kokucijwa, kufanele ligcine umumo wangempela weblade kanye nezici ze-angular ezihambisanayo.
Izihloko ezihlobene: amasaha, imishini yokusaha eyindilinga, ugodo oluthambile nokhuni oluqinile, izinkuni kanye nokukhiqizwa kwewindi lezingodo. umnyango.