Kodi Surface Finish ndi chiyani? Kodi kumaliza kwa 3.2 kumatanthauza chiyani?

Tisanalowe tchati chomaliza, tiyeni timvetsetse zomwe kumaliza kumatanthauza.
Kumaliza pamwamba kumatanthawuza njira yosinthira pamwamba pazitsulo zomwe zimaphatikizapo kuchotsa, kuwonjezera, kapena kukonzanso. Ndilo muyeso wa mawonekedwe athunthu a pamwamba pa chinthu chomwe chimatanthauzidwa ndi mawonekedwe atatu a roughness pamwamba, waviness ndi lay.

Kukhwimira kwapamtunda ndiko kuyeza kwa zolakwika zonse zotalikirana pamtunda. Nthawi zonse akatswiri akamalankhula za "kumaliza pamwamba," nthawi zambiri amatanthawuza kukhwinyata.
Waviness imatanthawuza malo okhotakhota omwe matalikirana ake ndi aakulu kuposa kutalika kwa khwimbi la pamwamba. Ndipo kuyika kumatanthawuza komwe mawonekedwe apamwamba amatengera. Machinists nthawi zambiri amazindikira lamba ndi njira zomwe zimagwiritsidwa ntchito pamtunda.

 

 

Kodi kumaliza kwa 3.2 kumatanthauza chiyani

Kumaliza kwa 32, komwe kumadziwikanso kuti kumaliza kwa 32 RMS kapena kumaliza kwa 32 microinch, kumatanthawuza kuuma kwa zinthu kapena chinthu. Ndilo muyeso wa kutalika kwapakati kusiyana kapena kupatuka kwa mawonekedwe apamwamba. Pankhani yomaliza pamwamba pa 32, kusiyana kwake kumakhala kozungulira 32 microinches (kapena 0.8 micrometer). Imawonetsa malo osalala bwino okhala ndi mawonekedwe abwino komanso zolakwika zochepa. Kutsika kwa chiwerengerocho, kumapangitsa kuti pamwamba pake ikhale yabwino komanso yosalala.

Kodi kumaliza kwa RA 0.2 ndi chiyani

Kumaliza kwa RA 0.2 kumatanthawuza muyeso wina wa kuuma kwapamwamba. "RA" imayimira Roughness Average, yomwe ndi chizindikiro chomwe chimagwiritsidwa ntchito kutsimikizira kuuma kwa pamwamba. Mtengo "0.2" ukuyimira avareji yakukali mu ma micrometer (µm). Mwa kuyankhula kwina, mapeto a pamwamba okhala ndi mtengo wa RA wa 0.2 µm amawonetsa mawonekedwe osalala komanso abwino kwambiri. Mapeto amtundu woterewa amapezedwa ndi makina olondola kapena kupukuta. 

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Standard	Mkati Mwankhaza	Ukali Wakunja	Kuuma kwakukulu
			HRB
ASTM A269	Ra ≤ 0.25μm	Ra ≤ 0.50μm	90