Yuav Ua Li Cas Txhim Kho Tus Nqi Zoo Ntawm Qhov Precision Parts - 10 Proven Levers (khw- pem teb lus Askiv)
Xauv lub datum
Tshuab txhua qhov chaw tseem ceeb hauv ib qho clamping; Yog tias qhov kev teeb tsa thib 2 tsis tuaj yeem zam tau, siv pob zeb diamond-pin qhov reamed rau H7 yog li rov ua dua nyob hauv 5 µm.
Txiav nrog txoj cai ntug
Indexable inserts micro- chipped lub lim tiam dhau los nce Ra los ntawm 0.4 µm thiab tuaj yeem thawb lub bore 8 µm oversize. Hloov cov npoo ntawm 0.05 hli flank hnav lossis txhua 2 teev ntawm 316L-qhov twg los ua ntej.
Stabilize kub
Khaws lub khw ntawm 20℃± 1 degree; khiav ib 15-feeb spindle sov- mus txog lub voj voog kom lub pob-ntsia hlau loj hlob<3 µm/500 mm; measure parts only after they drop to room temp.
Saib xyuas, tsis txhob twv
Tshawb xyuas txhua ntu 10 ntawm lub tshuab; Yog tias Cpk ntawm Ø12 hli qhov poob qis dua 1.67, lub kaw lus cia li kaw qhov offset thiab nplooj ntawv tus kws tshaj lij- tsis muaj qhov phem tawm hauv lub xov tooj.
Lim lub coolant
10 µm lub hnab lim + 70 bar los ntawm - cuab yeej siab muab 0.2 µm Ra ntawm txhuas; qias neeg coolant ntxiv chatter cov cim thiab tuaj yeem zais qhov seem ntawm 1% mus rau 5%.
Sequence qhov txiav
Rough → semi-finish (0.15 hli) → tiav (0.02 hli); tawm 0.3 hli rau ntawm tshav kub- kho, tom qab ntawd nyuaj- tig los yog zom rau qhov kawg loj-qhov no ib leeg txiav cov khoom seem ntawm 60%.
Tswj lub burr
Qhov kev zov me nyuam 0.05 hli × 45℃chamfering dhau thaum qhov tseem nyob hauv qhov kev sib tw; phau ntawv deburr lub sij hawm ntog 70% thiab tsis tau tsa ntug puas tau mus txog tus neeg siv khoom.
Validate lub ntsuas
Calibrate micrometers thiab CMM stylus sojntsuam txhua lub lim tiam; 2 µm drift hauv lub nplhaib ntsuas tuaj yeem npog qhov 15% Cpk poob.
Tsheb ciav hlau rau xoom tsis xws luag
Muab 30-thib ob mus/tsis yog- mus rau daim duab ntawm lub tshuab; yog tias lawv pom qhov tsis xws luag lawv nres txoj kab-qhib qhov nres, rau txim rau qhov zais.
Kaw lub voj
Pub CMM cov ntaub ntawv rov qab rau CAM; yog hais tias bore scatter trends +3 µm nyob rau yav tav su, lub software trims lub cuab tam offset tag kis sawv ntxov- zoo txhim kho txhua hnub, tsis yog txhua hli.
