Dimensional Accuracy: Precision machining feem ntau xav tau IT5-IT7 qib (ISO tus qauv). Piv txwv li, kev kam rau siab ntawm aero- cav hniav yuav tsum tau tswj nyob rau hauv ± 0.005mm (saib rau *Machining Handbook*). High- qhov tseeb qhov tseeb, xws li lub lens thav duab, txawm tias yuav tsum tau IT3 qib, yuav tsum tau siv cov tshuab dhos ultra-precision lossis grinders.
Nto Roughness: Tus nqi Ra ntawm cov khoom tseem ceeb (xws li hydraulic valve cores) yuav tsum tsawg dua lossis sib npaug li 0.4μm, ua tiav los ntawm kev sib tsoo zoo lossis polishing; rau qhov zoo tib yam precision, Ra nyob rau hauv 1.6μm yog txaus. Kev tshawb fawb qhia (*China Mechanical Engineering*, 2022) tias rau txhua txhua 0.1μm txo nyob rau hauv roughness nto, lub neej qaug zog ntawm ib feem yuav nce 15%-20%.
Geometric Tolerances: Cov no suav nrog roundness thiab cylindricity. Piv txwv li, qhov yuam kev roundness ntawm siab -precision bearings yuav tsum tsawg dua los yog sib npaug rau 0.001mm, yuav tsum tau tiag tiag- lub sij hawm tshawb nrhiav siv lub tshuab ntsuas kev sib koom tes (CMM).
