Thaum lub siab ntev heev yuav tsum tau teev tseg, los yog thaum cov khoom duab yog complex, los yog thaum tsuas yog ib los yog ob tug prototypes yuav tsum tau, lub machining ntawm [email tiv thaiv] PTFE resins ua ib tug logic txhais tau tias ntawm fabrication.
Txhua yam kev ua haujlwm-tig, tig, tig, tho txawv, drilling, threading, tapping, reaming, sib tsoo, thiab lwm yam.-yog muaj feem xyuam rau polymer PTFE resins.Tshwj xeeb machinery tsis tsim nyog.
Thaum machining qhov chaw los ntawm polymer PTFE resins, manually los yog txiav, txoj cai yooj yim yuav tsum nco ntsoov yog tias cov resins muaj lub cev tsis zoo li lwm yam khoom siv feem ntau machined.Lawv yog mos, tab sis springy.Lawv yog waxT, tseem tawv.Lawv muaj qhov txiav "xav" ntawm tooj dag, tsis tau cov cuab yeej hnav cov nyhuv ntawm stainless hlau.Txawm li cas los xij, ib tus kws kho tshuab uas tau kawm tuaj yeem tuaj yeem ua cov khoom siv polymer PTFE kom kam rau siab ntawm + 0.001 nti thiab, nrog kev saib xyuas tshwj xeeb, mus rau + 0.0005 nti.
Xaiv Qhov Ua Haujlwm Ceev
Ib qho cuab yeej ntawm polymer PTFE resins muaj zog cuam tshuam cov txheej txheem rnachining yog lawv cov thermal conductivity tsawg heev.Lawv tsis sai sai nqus thiab dissipate tshav kub generated ntawm ib tug txiav ntug.Yog tias muaj cua sov ntau dhau khaws cia hauv thaj chaw txiav, nws yuav zoo li dull lub cuab yeej thiab overheat cov resin.Cov coolants, yog li, yog qhov xav tau thaum lub sijhawm ua haujlwm, tshwj xeeb tshaj yog saum npoo ceev ntawm I50 m / min (500 fpm).
Ua ke nrog cov conductivity tsawg, lub thermal expansion ntawm polymer PTFE resins (ze li IQ zaus ntawm cov hlau) tuaj yeem tsim teeb meem ntxiv.Ib tiam twg thiab qhov chaw ntawm cov cua sov ntau dhau yuav ua rau nthuav dav ntawm cov khoom siv fluoropolymer ntawm qhov ntawd.Nyob ntawm qhov tuab ntawm ntu thiab kev ua haujlwm tau ua, Iocalized expansion yuav ua rau overcuts los yog undercuts, thiab nyob rau hauv drilling ib tug tapered qhov.
Cov txheej txheem Machining ces, tshwj xeeb tshaj yog ua hauj lwm ceev, yuav tsum coj conductivity thiab expansion los rau hauv tus account.
Qhov nrawm nrawm ntawm 60-150 m / min (200-500 fpm) yog qhov txaus siab tshaj plaws rau kev ua tiav tiav;Nyob rau hauv cov lus no, dej nyab coolants tsis xav tau.Kev nrawm dua tuaj yeem siv nrog cov khoom noj tsawg heev lossis rau kev txiav rougher, tab sis cov coolants ua ib qho tseem ceeb rau kev tshem tawm cov cua sov ntau dhau.Lub coolant zoo muaj dej ntxiv rau cov dej-soluble roj hauv qhov sib piv ntawm 10: 1 txog 20: I.
Pub rau 60-150 m / min (200-500 frm) ceev ntau yuav tsum khiav berween 0.05-0.25 hli (0.002-0.010 nti) ib kiv puag ncig.Yog tias qhov kev txiav tiav yog qhov khoom ntawm kev ua haujlwm siab (piv txwv li, lub tshuab tsis siv neeg ntsia hlau khiav ntawm 240 m / min [800 fp-]), ces noj musr yuav poob rau tus nqi qis dua.Pom zoo qhov tob ntawm kev txiav nws txawv ntawm 0.005-6.3 hli (0.0002- 0.25 nti).
Hauv kev ua haujlwm drilling, kev taug kev mus rau pem hauv ntej ntawm lub cuab yeej yuav tsum tuav mus rau 0.13-0.23 hli (0.005-0.009 nti) ib kiv puag ncig.Nws tuaj yeem ua pov thawj zoo rau kev xyaum nrog kev tawm hauv-tawm kom tso cai rau cov cua sov mus rau hauv qhov txias.
Post lub sij hawm: Feb-04-2020