Kòmanse ak materyèl la, pa zouti a
Nerjaveèi travay -di nan 0.1 s; chak koupe ki vin apre yo dwe antre nan kouch ki fè tèt di anvan an.
Objektif: rete pi ba pase papòt travay-redi nan taye, pa fwote.
Mete Klas & Kouch
Substra: difisil, carbure sub-mikwòn grenn (6–10 % Ko) pou reziste sikilasyon tèmik.
Kouch: milti-kouch PVD AlTiN + TiSiN (3-4 µm) pou baryè 900 degre; ajoute Si pou nano-kouch solidite.
Pou 17-4 PH Pi gwo pase oswa egal a 38 HRC: chanje nan CBN oswa seramik (Sialon) nan pi ba vitès.
Makro-Jeyometri
Pozitif rato 8-12 degre diminye fòs koupe 15-25%.
Byen file Mwens pase oswa egal a 0.02 mm; pi gwo pèfeksyone ogmante fwote ak pwofondè kouch blan-.
Chip-renur brekè matche ak manje (f=0.08–0.20 mm/rev) pou bato ki kout, ki anroule.
Toolholder & Setup
Idwolik oswa retresi -anfòm pou < 3 µm kouri-; chak 10 µm kouri-koupe lavi zouti nan mwatye.
Longè kalib ki pi kout Mwens pase oswa egal a 4 × D pou pouse chatter pi wo pase 8 kHz-deyò ranje modal machin nan.
Done Koupe Rekòmande (inondasyon oswa 7 MPa HP awozaj)
表格
复制
| Klas | Operasyon | Vc (m/min) | f (mm/rev) | ap (mm) | Sib lavi zouti |
|---|---|---|---|---|---|
| 303 | Ki graj | 120–150 | 0.15–0.25 | 1–2 | 20 min |
| 303 | Fini | 150–180 | 0.05–0.10 | 0.1–0.3 | 30 min |
| 304/316L | Ki graj | 80–120 | 0.12–0.20 | 1–2 | 15 min |
| 304/316L | Fini | 120–150 | 0.05–0.08 | 0.05–0.2 | 25 min |
| 17-4 PH | Ki graj | 60–80 | 0.10–0.15 | 0.5–1.5 | 10 min |
| 17-4 PH | Fini | 100–120* | 0.03–0.06 | 0.02–0.1 | 15 min |
| *CBN oswa seramik nan 150-200 m / min pou koupe kontinyèl. |
Feed-a-Edge Règ
Feed dwe pi gran pase oswa egal ak reyon perfectionner; otreman zouti nan fwote: f Pi gran pase oswa egal a rε × 0.5.
Pou yon pèsekisyon 0.04 mm, manje minimòm 0.02 mm/rev-sèvi ak sa a kòm limit absoli pi ba a.
Pwofondè-de-Estrateji Koupe
Ki graj: ap Pi gran pase oswa egal a 0.2 mm pou penetre po ki fè tèt di toujou nan koupe anvan an.
Semi-fini: 0.1 mm; fini: 0.02–0.05 mm pou kenbe fòs koupe < 200 N epi evite pati defleksyon sou mi mens.
Livrezon likid refwadisman
Sib 7 MPa, 30 l/min atravè -zouti; diminye tanperati kwen 150 degre ak pwolonje lavi 30%.
Kontni klori < 60 ppm pou anpeche pitting pandan kouri long; pH 8.5-9.2.
Zouti-Siveyans lavi
Sèvi ak koub pouvwa spindle: ± 5% ogmantasyon siyal degradasyon kwen; chanje insert anvan sifas fini so > 0.2 µm Ra.
Nan-lè selil-kalib oswa lazè: flote dimansyon > 6 µm se yon lòt drapo mete serye.
Pri-pa-Kalkil kwen
Egzanp: insert carbure kouvwi (double -bò, 4 bor) koute USD 6.50; espere 20 min lavi nan Vc 100 m / min sou 304.
Yon sèl kwen machin 1.25 m pati longè → koute=USD 6.50 / 4 / 1.25=USD 1.30 pou chak mèt, konpetitif ak re-moulen.
