Phaephe ea ho phunya ke mochini o bohlokoa haholo bakeng sa lisebelisoa tsa mechini ea merafo. Phaephe ea ho phunya le drill bit ke lisebelisoa tse sebetsang tsa drill ea lefika, tse nang le tšusumetso e kholo katlehong ea ho phunya lefika.
Phaephe ea ho phunya, e tsejoang hape e le tšepe, hangata e entsoe ka tšepe ea khabone, karolo eo e na le sekoti se nang le mahlakore a tšeletseng kapa mohlala. Morero oa sekoti ke ho tlosa phofo ea lesoba la sethunya.
Sebopeho sa drile se kgethwa ho latela boima le sebopeho sa lefika. Ho na le mefuta e meraro ya dikotwana tse tlwaelehileng tsa drile: chisel e le nngwe, chisel e habeli le sefapano. Didrile tse pedi tse bōpehileng jwalo ka chisel le sefapano di ka sebediswa lefikeng le akaretsang.
Ho na le litsela tse peli tsa ho hokahanya karolo ea phaephe ea ho phunya. E 'ngoe ke motsoako oa phaephe ea ho phunya le karolo ea ho phunya (e tsejoang hape e le drill), e ka sebelisoa feela ka thata ea lefika ha e kholo, kahoo hlooho ea faeba e bonolo ho e apara. Ka nako ena e lokela ho ba karolo ea moton e tla etsoa, e tsejoang ka hore ke forging faeba kapa change drill. E 'ngoe ke phaephe ea ho phunya e hokahaneng le karolo ka khoele kapa taper, hangata e sebelisoa lefikeng le thata. Moeli o sehiloeng oa karolo o koahetsoe ka tšepe ea sesebelisoa sa carbide, e tsejoang ka hore ke karolo ea alloy. Molemo oa mofuta ona oa drill ke hore drill e ka tlosoa 'me ea nkeloa sebaka neng kapa neng kamora ho sila, 'me phaephe ea ho phunya e ka sebetsa ntle le ho nkeloa sebaka, e leng se ntlafatsang katleho ea mosebetsi, se boloka tšepe, 'me se fokotsa litšenyehelo tsa tokiso ea faeba.
Phaephe ea ho phunya le ea ho phunya li sebelisoa hammoho ts'ebetsong ea ho phunya. Ha u phunya, sebelisa phaephe e khutšoanyane ea ho phunya le phaephe e kholoanyane ea ho phunya ho bula lesoba pele, ebe u eketsa phaephe ea ho phunya butle-butle ho sebelisa phaephe e nyane ea ho phunya, kahoo phaephe ea ho phunya e lokela ho ba kholo pele ebe e nyane, butle-butle e fokotsoe ho fihlela lesobeng le hlokahalang, phaephe ea ho phunya pele e be khutšoanyane ebe e telele, ka bonngoe ho fetola bolelele ho ea botebong bo hlokahalang.
Nako ea poso: Mmesa-09-2020
