Live Tooling vs Second Milling on Swiss Lathes: Optimizing CNC Precision Turning
PFT, Shenzhen
Kakaretso: Li-lathe tsa mofuta oa Switzerland li fihlela lijeometri tse rarahaneng li sebelisa lisebelisoa tse phelang (lisebelisoa tse bilikang tse bilikang) kapa ho siloa ha bobeli (mesebetsi ea ho sila ka mor'a ho phethoha). Tlhahlobo ena e bapisa linako tsa potoloho, ho nepahala, le litšenyehelo tsa ts'ebetso pakeng tsa mekhoa e 'meli e thehiloeng litekong tse laoloang tsa mochine. Liphetho li bonts'a lisebelisoa tse phelang li fokotsa karolelano ea nako ea potoloho ka 27% 'me li ntlafatsa mamello ea maemo ka 15% bakeng sa likarolo tse kang li-cross-holes le flats, leha ho le joalo matsete a lisebelisoa a pele a phahame ka 40%. Ho siloa ha bobeli ho bonts'a litšenyehelo tse tlase ho karolo ka 'ngoe bakeng sa li-unit tse ka tlase ho 500. Boithuto bo phethela ka mekhoa ea khetho e ipapisitseng le ho rarahana ha karolo, boholo ba batch, le litlhoko tsa mamello.
1 Selelekela
Li-lathe tsa Switzerland li laola tlhahiso e nepahetseng haholo, e nang le likarolo tse nyane. Qeto ea bohlokoa e kenyelletsa ho khetha pakeng tsaphela lisebelisoa(ho sila ka mochini/ho phunya) letshilo ya bobedi(ts'ebetso e inehetseng ea kamora ts'ebetso). Lintlha tsa indasteri li bonts'a 68% ea bahlahisi ba etelletsa pele ho fokotsa litlhophiso bakeng sa likarolo tse rarahaneng (Smith,J. Manuf. Sci., 2023). Tlhahlobo ena e lekanya likhohlano tsa ts'ebetso ho sebelisoa data ea machining e sebetsang.
2 Mokhoa
2.1 Moqapi oa Teko
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Lisebelisoa tsa mosebetsi: 316L shafts ea tšepe e sa hloekang (Ø8mm x 40mm) e nang le likoti tse 2x Ø2mm + 1x 3mm flat.
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Mechini:
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Live Tooling:Tsugami SS327 (Y-axis)
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Tšimo ea bobeli:Hardinge Conquest ST + HA5C Indexer
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Metrics Tse lateloang: Nako ea potoloho (metsotsoana), ho ba mahoashe holimo (Ra µm), mamello ea boemo ba lesoba (±mm).
2.2 Pokello ea Lintlha
Lihlopha tse tharo (n=150 likarolo ka mokhoa o mong) li ile tsa sebetsoa. Mitutoyo CMM e ile ea lekanya likarolo tsa bohlokoa. Tlhahlobo ea litšenyehelo e ne e kenyelletsa ho apara ha lisebelisoa, basebetsi, le ho theoha ha mochine.
3 Liphetho
3.1 Papiso ea Ts'ebetso
| Metric | Live Tooling | Milling ea bobeli |
|---|---|---|
| Avg. Nako ea Cycle | 142 metsotsoana | 195 metsotsoana |
| Mamello ea Boemo | ± 0.012 limilimithara | ± 0.014 limilimithara |
| Bokhopo ba Sefahleho (Ra) | 0.8µm | 1.2 µm |
| Litšenyehelo tsa Lisebelisoa / Karolo | $1.85 | $1.10 |
*Setšoantšo sa 1: Lisebelisoa tse phelang li fokotsa nako ea potoloho empa li eketsa litšenyehelo tsa karolo ka 'ngoe.*
3.2 Tlhahlobo ea Litšenyehelo tsa Melemo
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Break-Even Point: Lisebelisoa tse phelang li fetoha chelete e ngata ho ~ 550 units (Setšoantšo sa 2).
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Tšusumetso e nepahetseng: Lisebelisoa tse phelang li felisa liphoso tsa ho lokisa bocha, ho fokotsa phapang ea Cpk ka 22%.
4 Puisano
Phokotso ea Nako ea Cycle: Ts'ebetso e kopaneng ea lisebelisoa tsa Live e felisa tieho ea ho sebetsana le karolo. Leha ho le joalo, mefokolo ea matla a spindle e thibela ho siloa ho boima.
Meeli ea Litšenyehelo: Litšenyehelo tse tlase tsa ho sila tsa bobeli li lumellana le li-prototypes empa li bokella basebetsi.
Tlhaloso e Sebetsang: Bakeng sa likarolo tsa bongaka / tsa sefofane tse nang le mamello ea ± 0.015mm, lisebelisoa tse phelang li nepahetse ho sa tsotellehe lichelete tse phahameng tsa pele.
5 Qetello
Lisebelisoa tse phelang ho li-lathe tsa Switzerland li fana ka lebelo le holimo le ho nepahala bakeng sa likarolo tse rarahaneng, tse bohareng ho isa ho tse phahameng (> 500 units). Ho sila ha bobeli ho ntse ho sebetsa bakeng sa li-geometri tse bonolo kapa lihlopha tse tlase. Patlisiso ea nako e tlang e lokela ho hlahloba ts'ebeliso e matla ea lisebelisoa bakeng sa lisebelisoa tse phelang.
Nako ea poso: Jul-24-2025
