Mofuta oa End Mill

Ho na le lihlopha tse 'maloa tse pharaletseng tsa lisebelisoa tsa ho qetela le tsa sefahleho, tse kang ho seha bohareng khahlanong le ho seha bohareng (hore na leloala le ka khona ho khaola); le ho arola ka palo ea liphala; ka lehlakoreng la helix; ka lintho tse bonahalang; le ka ho roala thepa. Sehlopha se seng le se seng se ka aroloa hape ka ts'ebeliso e khethehileng le geometry e khethehileng.

Sebaka se tummeng haholo sa helix, haholo-holo bakeng sa ho khaola ka kakaretso lisebelisoa tsa tšepe, ke 30 °. Bakeng sa ho qetelamaloala a ho qetela, ho tloaelehile ho bona spiral e thata haholoanyane, e nang le li-angles tsa helix 45 ° kapa 60 °.Liloala tse otlolohileng tsa lekolilo(helix angle 0 °) li sebelisoa lits'ebetsong tse khethehileng, joalo ka lipolasetiki tsa ho sila kapa likarolo tsa epoxy le khalase. Limilili tse otlolohileng tsa lekolilo le tsona li ne li sebelisoa nalaneng bakeng sa ho seha tšepe pele ho qaptjoa leloala la ho qetela la lekolilo ke Carl A. Bergstrom oa Weldon Tool Company ka 1918.

Ho na le limilone tse nang le lekolilo le feto-fetohang kapa pseudo-random helix angle, le li-geometries tsa lekolilo tse sa khaotseng, ho thusa ho pshatla lisebelisoa likotoana tse nyane ha li ntse li seha (ho ntlafatsa phallo ea li-chip le ho fokotsa kotsi ea ho jamming) le ho fokotsa ts'ebetso ea lisebelisoa mekhoeng e meholo. Meetso e meng ea sejoale-joale e kenyelletsa likarolo tse nyane joalo ka chamfer ea sekhutlo le chipbreaker. Le hoja e le theko e boima haholo, ka lebaka la moralo o rarahaneng le mokhoa oa tlhahiso, joalomaloala a ho qetelae ka tšoarella nako e telele ka lebaka la ho se sebetse hantle le ho ntlafatsa tlhahiso hoho sebetsa ka lebelo le phahameng(HSM) lits'ebetso.

Ho ntse ho ata haholo hore litsila tsa khale tse tiileng li nkeloe sebaka ke tse kenngoeng tse bolokang chelete e ngatalisebelisoa tsa ho seha(e leng, le hoja e le theko e boima qalong, e fokotsa linako tsa ho fetola lisebelisoa le ho lumella hore ho be bonolo ho nkela likarolo tse sehang kapa tse robehileng ho e-na le sesebelisoa kaofela).

Li-mill tsa ho qetela li rekisoa ka bobeli ba moemphera le metric shank le li-cutting diameters. USA, metric e fumaneha habonolo, empa e sebelisoa feela mabenkeleng a mang a mochini eseng a mang; Canada, ka lebaka la ho ba haufi ha naha ho US, ho tšoana haholo le 'nete. Asia le Europe, li-diameter tsa metric li tloaelehile.