
Lokhu kuyi-a Ithuluzi le-Trepanning (okwaziwa nangokuthi i-hollow drill noma i-core drill), ithuluzi lokusika elikhethekile lomshini wembobo ejulile esusa kahle into ngokusika i-annular groove, eshiya umgogodla oqinile uphelele. Ilungele ukugoba izimbobo ezijulile ezinobubanzi obukhulu, kunciphisa kakhulu udoti wempahla kanye nesikhathi somshini.
| Isakhi | Umsebenzi | Impahla/Izici |
|---|---|---|
| Ukusika Ifaka | Imiphetho yokusika eyinhloko yokususwa kwezinto zonyaka | I-Carbide (isb., i-YG8, i-WC-Co) noma i-carbide eboshiwe, ilungele i-carbon steel, insimbi engagqwali, ama-titanium alloys, njll. |
| Umhlahlandlela Pads | Zinzisa ithuluzi futhi uqinisekise ukuthi imbobo iqondile/i-cylindricity | Ukufakwa kwe-tungsten carbide, okunemvume engu-0.02–0.05 mm ukusuka odongeni lwembobo ukuze kuncishiswe ukuchezuka kwamathuluzi. |
| Umzimba Wethuluzi | Ifaka ama-mount namaphedi omhlahlandlela, ihlanganisa amashaneli apholile | I-42CrMo ingxubevange yensimbi, efakwe ngokushisa ku-HRC 30–35 ngokuqina okuphezulu kanye nokumelana nomthelela. |
| Isixhumanisi Esibonakalayo | Ixhuma kumashubhu embobo ejulile ayisicefe noma iziphathi-mathuluzi | Ukucutshungulwa okunembayo noma ukulingana kwe-taper ukuqinisekisa ukugxila kanye nokudluliswa kwetorque. |
| Isigaba sepharamitha | Imininingwane Ejwayelekile | Amanothi |
|---|---|---|
| I-Hole Diameter Ehambisanayo | φ80–φ500 mm | Amadayimitha amakhulu atholakala uma uwacela. |
| Ukujula Kwemishini Ephezulu | 5000 mm | Kuya ngokushaywa kwethuluzi lomshini kanye nobude beshubhu obuyisicefe. |
| Inombolo Yokufaka Ukusika | 4-8 izingcezu | Kusatshalaliswe ngokulinganayo ukusika okuzinzile. |
| Inani lamaphedi omhlahlandlela | 4-6 izingcezu | Ididiyelwe ngokufakiwe ukuze uthole isiqondiso esilungile. |
| Ukucindezela Okupholile | 5–15 MPa | Iqinisekisa ukuthi ama-chips amisiwe futhi akhishwa kahle. |
| Amapharamitha wokusika anconyiwe | Isivinini sokusika v = 40–80 m/min Izinga lokuphakelayo f = 0.15–0.4 mm/rev | Lungisa ngokusekelwe kumpahla yokusebenza; ukufakwa kwe-carbide kuvumela isivinini esikhulu. |
| Ukunemba Kwemishini | Ukubekezelela Imbobo IT8–IT10 Ukuqina Kobuso Ra 3.2–6.3 μm | Ukuqedela okulandelayo (isb., ukucija) kuyadingeka ukuze uthole ukunemba okuphezulu. |