11. Dab tsi yog qhov sib tsoo log precision hnav cov thev naus laus zis hauv kev sib tsoo high-speed?
Teb: Tam sim no, kev sib tsoo log hnav ntau dua yog:
(1) ELID online electrolytic hnav khaub ncaws tshuab;
(2) EDM sib tsoo log hnav tshuab;
(3) Khob sib tsoo log hnav tshuab;
(4) Electrolysis-mechanical composite shaping tshuab
12. Precision sib tsoo yog dab tsi?Sim piav qhia luv luv txog txoj cai xaiv ntawm kev sib tsoo lub log hauv kev sib tsoo ntawm qhov sib tsoo zoo tib yam.
Teb: Precision sib tsoo yog hais txog kev xaiv ib qho zoo-grained sib tsoo lub log ntawm lub tshuab sib tsoo, thiab los ntawm kev hnav khaub ncaws zoo sib tsoo, cov nplej abrasive muaj micro-ntug thiab contour zog.Kev sib tsoo cov qhab nia zoo heev, qhov seem qhov siab yog qhov me me, thiab cov nyhuv ntawm qhov tsis sib tsoo yog ntxiv, thiab txoj kev sib tsoo nto nrog cov machining raug ntawm 1 mus rau 0.1 hli thiab qhov roughness Ra ntawm 0.2 txog 0.025. mm tau.
Kev xaiv lub hauv paus ntsiab lus ntawm kev sib tsoo lub log hauv kev sib tsoo ntawm qhov sib tsoo zoo tib yam:
(1) Lub abrasive ntawm lub sib tsoo log siv nyob rau hauv precision sib tsoo yog raws li nyob rau hauv lub hauv paus ntsiab lus ntawm kev yooj yim los tsim thiab tswj lub micro-ntug thiab nws contour.
(2) Sib tsoo log particle loj?Xav txog cov xwm txheej geometric ib leeg, qhov zoo dua qhov sib tsoo log particle loj, qhov me me ntawm qhov roughness tus nqi ntawm kev sib tsoo.Txawm li cas los xij, thaum cov khoom abrasive zoo dhau lawm, tsis yog tsuas yog lub log sib tsoo yuav yooj yim thaiv los ntawm kev sib tsoo cov khib nyiab, tab sis yog tias cov thermal conductivity tsis zoo, nws yuav ua rau kub hnyiab thiab lwm yam tshwm sim ntawm lub tshuab ua haujlwm, uas yuav ua rau kom lub ntsej muag roughness. tus nqi..
(3) Sib tsoo log binder?Sib tsoo log binders muaj xws li resins, hlau, ceramics, thiab lwm yam, thiab resins yog dav siv.Rau coarse-grained sib tsoo log, vitrified daim ntawv cog lus yuav siv tau.Hlau thiab ceramic binders yog ib qho tseem ceeb ntawm kev tshawb fawb hauv kev sib tsoo precision.
13. Dab tsi yog cov yam ntxwv ntawm precision sib tsoo nrog superabrasive sib tsoo log?Yuav xaiv qhov sib tsoo li cas?
Teb: Cov yam ntxwv tseem ceeb ntawm superabrasive sib tsoo log sib tsoo yog:
(1) Nws tuaj yeem siv los ua cov txheej txheem ntau yam siab tawv thiab siab brittleness hlau thiab cov ntaub ntawv tsis yog hlau.
(2) Muaj peev xwm sib tsoo muaj zog, hnav tsis kam, ua haujlwm siab, tuaj yeem tswj kev sib tsoo rau lub sijhawm ntev, hnav khaub ncaws tsawg dua, yooj yim los tuav particle loj;yooj yim los tswj kev loj me me thiab paub txog kev ua automation.
(3) Lub zog sib tsoo me me thiab qhov sib tsoo kub yog qhov tsawg, kom qhov kev ntxhov siab sab hauv tuaj yeem txo qis, tsis muaj qhov tsis xws li kub hnyiab thiab tawg, thiab lub tshuab ua haujlwm zoo yog qhov zoo.Thaum lub pob zeb diamond sib tsoo lub log sib tsoo cemented carbide, nws lub zog sib tsoo tsuas yog 1/4 txog 1/5 ntawm ntsuab silicon carbide.
(4) High sib tsoo efficiency.Thaum machining nyuaj alloys thiab non-metallic nyuaj thiab nkig cov ntaub ntawv, cov hlau tshem tawm tus nqi ntawm pob zeb diamond sib tsoo lub log yog zoo dua li cov cubic boron nitride sib tsoo log;Tab sis thaum machining kub-resistant steel, titanium alloys, tuag steel thiab lwm yam ntaub ntawv, cubic boron nitride sib tsoo log yog ntau dua ntawm pob zeb diamond sib tsoo log.
(5) Tus nqi ua haujlwm tsawg.Pob zeb diamond sib tsoo log thiab cubic boron nitride sib tsoo log yog kim dua, tab sis lawv muaj kev pab cuam lub neej ntev thiab kev ua haujlwm siab, yog li tus nqi tag nrho yog tsawg.
Superabrasive sib tsoo log sib tsoo ntau npaum xaiv:
(1) Kev sib tsoo ceev Kev sib tsoo ceev ntawm cov hlau tsis yog hlau pob zeb diamond sib tsoo log feem ntau yog 12 ~ 30m / s.Kev sib tsoo ceev ntawm lub cubic boron nitride sib tsoo lub log tuaj yeem siab dua li ntawm lub pob zeb diamond sib tsoo lub log, thiab qhov kev xaiv 45-60m / s yog vim qhov zoo thermal stability ntawm cubic boron nitride abrasive.
(2) Qhov sib tsoo qhov tob feem ntau yog 0.001 txog 0.01 hli, uas tuaj yeem xaiv raws li txoj kev sib tsoo, abrasive particle loj, binder thiab txias txias.
(3) Lub workpiece ceev yog feem ntau 10-20m / min.
(4) Longitudinal pub ceev?Feem ntau 0.45 ~ 1.5m / min.
14. Ultra-precision sib tsoo yog dab tsi?Sim piav qhia luv luv txog nws cov txheej txheem, cov yam ntxwv thiab daim ntawv thov.
Teb: Ultra-precision sib tsoo yog hais txog kev sib tsoo lub log sib tsoo nrog kev ua kom raug tsawg dua 0.1 hli thiab qhov roughness ntawm tsawg dua Ra0.025mm., Hlau cov ntaub ntawv, ceramics, iav thiab lwm yam ntaub ntawv nyuaj thiab nkig ua.
Ultra-precision sib tsoo mechanism:
(1) Abrasive hais tuaj yeem suav hais tias yog lub cev elastic nrog kev txhawb nqa elastic thiab qhov loj tsis zoo ntawm lub kaum sab xis txiav.Kev txhawb nqa elastic yog tus neeg sawv cev khi.Txawm hais tias cov khoom abrasive muaj qhov nyuaj heev thiab lawv tus kheej deformation me me, lawv yeej tseem elastomers.
(2) Kev txiav qhov tob ntawm cov nplej txiav ntug maj mam nce ntawm xoom, thiab tom qab ntawd maj mam txo mus rau xoom tom qab ncav cuag tus nqi siab tshaj.
(3) Tag nrho cov txheej txheem kev sib cuag ntawm cov nplej abrasive thiab cov khoom ua haujlwm yog ua raws li thaj tsam elastic, thaj tsam yas, txiav cheeb tsam, thaj tsam yas thiab elastic cheeb tsam.
(4) Nyob rau hauv kev sib tsoo ultra-precision, micro-txiav kev txiav txim, cov yas ntws, elastic kev puas tsuaj thiab zawv zawg qhov kev txiav txim tshwm sim raws li qhov kev hloov ntawm kev txiav.Thaum cov hniav yog ntse thiab muaj qee qhov sib tsoo qhov tob, cov nyhuv micro-txiav muaj zog;Yog hais tias cov hniav tsis ntse txaus, los yog qhov sib tsoo qhov tob yog ntiav heev, cov yas ntws, elastic puas thiab zawv zawg yuav tshwm sim.
Nta ntawm Ultra Precision Sib Tsoo:
(1) Ultra-precision sib tsoo yog ib txoj haujlwm ua haujlwm.
(2) Superabrasive sib tsoo log yog cov cuab yeej tseem ceeb rau kev sib tsoo ultra-precision.
(3) Ultra-precision sib tsoo yog ib hom kev txiav ultra-micro.
Kev siv ntawm ultra-precision sib tsoo:
(1) Sib tsoo cov ntaub ntawv hlau xws li hlau thiab nws cov alloys, tshwj xeeb tshaj yog cov hlau tawv tawv uas tau kho los ntawm quenching.
(2) Cov ntaub ntawv tawv thiab nkig uas tuaj yeem siv rau kev sib tsoo tsis yog hlau?Piv txwv li, ceramics, iav, quartz, semiconductor cov ntaub ntawv, cov ntaub ntawv pob zeb, thiab lwm yam.
(3) Tam sim no, feem ntau yog cylindrical grinders, deg grinders, sab hauv grinders, sib koom tes grinders thiab lwm yam ultra-precision grinders, uas yog siv rau ultra-precision sib tsoo ntawm txheej voj voog, dav hlau, qhov thiab qhov system.
(4) Ultra-precision sib tsoo thiab ultra-precision free abrasive ua tiav ib leeg.
15. Qhia luv luv txog lub hauv paus ntsiab lus thiab cov yam ntxwv ntawm ELID daim iav sib tsoo.
Teb: Lub hauv paus ntsiab lus ntawm ELID daim iav sib tsoo: Thaum lub sij hawm kev sib tsoo, electrolytic sib tsoo kua yog poured ntawm lub sib tsoo log thiab lub cuab tam electrode thiab ib tug DC pulse tam sim no yog siv, thiaj li hais tias cov hlau daim ntawv cog lus ntawm lub sib tsoo log raws li lub anode muaj anode. Cov nyhuv dissolution thiab maj mam muab tshem tawm, yog li ntawd lub abrasive nplej uas tsis cuam tshuam los ntawm electrolysis protrude los ntawm nto ntawm lub sib tsoo log.Nrog rau kev ua tiav ntawm cov txheej txheem electrolysis, txheej txheej ntawm oxide zaj duab xis nrog cov khoom siv insulating yog maj mam tsim rau ntawm qhov chaw sib tsoo, tiv thaiv kev txuas ntxiv ntawm cov txheej txheem electrolysis.Thaum cov nplej abrasive ntawm lub log sib tsoo tau hnav, cov zaj duab xis passive Tom qab raug khawb tawm los ntawm lub workpiece, cov txheej txheem electrolysis txuas ntxiv, thiab lub voj voog pib dua, thiab lub log sib tsoo tau hnav tsis tu ncua los ntawm kev ua ntawm on-line electrolysis kom tau txais. tsis tu ncua protruding qhov siab ntawm cov nplej abrasive.
Cov yam ntxwv ntawm ELID Sib Tsoo:
(1) Cov txheej txheem sib tsoo muaj kev ruaj ntseg zoo;
(2) Txoj kev hnav khaub ncaws no tiv thaiv lub pob zeb diamond sib tsoo los ntawm kev hnav sai heev thiab txhim kho kev siv cov khoom siv zoo nkauj;
(3) ELID hnav khaub ncaws txoj kev ua rau cov txheej txheem sib tsoo muaj kev tswj tau zoo;
(4) Siv txoj kev sib tsoo ELID, nws yog qhov yooj yim kom ua tiav daim iav sib tsoo, thiab tuaj yeem txo qhov seem seem ntawm cov khoom siv superhard los ua hauv av.
16. Dab tsi yog creep feed sib tsoo?Sim cov kev xav ntawm qhov kub kub hloov pauv los piav qhia qhov tshwm sim uas qhov sib tsoo qis qis qis heev tab sis nws yooj yim rau hlawv dheev.
Teb: Creep Feed Sib Tsoo muaj ntau lub npe nyob rau hauv Suav teb yav dhau los, xws li muaj zog sib tsoo, hnyav load sib tsoo, creep sib tsoo, milling, thiab lwm yam. Lub npe tam sim no yuav tsum yog Creep Feed Deep Cutting Sib Tsoo Sib Tsoo, feem ntau hu ua qeeb sib tsoo.Qhov tshwj xeeb ntawm cov txheej txheem no yog tus nqi pub tsawg, uas yog li 10-3 mus rau 10-2 npaug ntawm kev sib tsoo zoo tib yam.Piv txwv li, lub workpiece ceev yuav tsawg li 0.2 hli / s thaum nto sib tsoo, yog li nws yog hu ua "slow" sib tsoo.Tab sis ntawm qhov tod tes, thawj qhov tob ntawm kev txiav yog loj, txog 100 mus rau 1000 npaug ntawm kev sib tsoo zoo tib yam.Piv txwv li, qhov txwv qhov tob ntawm kev txiav hauv tiaj tiaj tuaj yeem ncav cuag 20 mus rau 30 hli.
Raws li txoj kev xav ntawm boiling kub hloov nyob rau hauv lub tshav pob ntawm thermal engineering, nws yog ib tug scientific piav qhia rau qhov ib txwm qeeb sib tsoo kub yog tsawg heev, tab sis nws yog feem ntau prone rau tam sim ntawd hlawv.Thaum lub sij hawm sib tsoo qeeb, cov cua kub ntawm qhov chaw ntawm lub workpiece nyob rau hauv arc cheeb tsam thiab nto ntawm cov rhuab nickel hlau rau hauv lub pas dej ua ke yog qhov tseem ceeb, thiab cov dej sib tsoo nyob rau hauv arc cheeb tsam kuj muaj ib tug tseem ceeb heev kub flux ceev qlim. uas tuaj yeem ua rau cov yeeb yaj kiab npau npau.Kev sib tsoo yog hais txog kev sib tsoo kub flux q <> 120 ~ 130 ℃.
Qhov ntawd yog hais tias, txawm tias qhov loj npaum li cas ntawm qhov txiav qhov tob yog thaum lub sij hawm sib tsoo qeeb, txawm tias nws yog 1 hli, 10mm, 20mm lossis 30mm, tsuav yog qhov kev sib tsoo qeeb qeeb, qhov kub ntawm qhov chaw ua haujlwm hauv cheeb tsam arc yuav. tsis tshaj 120 ~ 130 ℃, uas kuj yog vim li cas cov txheej txheem sib tsoo qeeb sib txawv.Qhov zoo tshaj qhov sib tsoo zoo tib yam.Txawm li cas los xij, qhov zoo tshaj plaws thev naus laus zis ntawm kev sib tsoo qeeb yog qhov ua tau yooj yim ploj vim qhov khiav tawm ntawm cov cua sov flux ceev.Kev sib tsoo kub khiav ceev q tsis yog tsuas yog cuam tshuam rau ntau yam xws li cov khoom siv thiab txiav nyiaj, tab sis kuj nyob ntawm qhov ntse ntawm qhov sib tsoo lub log.Ntev npaum li qhov xwm txheej q ≥ qlim tau ntsib, qhov chaw ntawm qhov chaw ua haujlwm hauv thaj chaw arc yuav raug hlawv dheev vim yog cov kua dej sib tsoo nkag mus rau hauv cov yeeb yaj kiab ua kom kub..
17. Yuav ua li cas thiaj li hnav khaub ncaws tsis tu ncua hauv creep feed sib tsoo?Dab tsi yog qhov zoo ntawm kev hnav khaub ncaws tsis tu ncua?
Teb: Qhov kev hnav khaub ncaws tsis tu ncua yog hais txog kev hloov kho thiab ua kom lub ntsej muag sib tsoo thaum sib tsoo.Nrog rau txoj kev hnav khaub ncaws tas mus li, cov pob zeb diamond hnav khaub ncaws chais yog ib txwm nyob rau hauv kev sib cuag nrog lub sib tsoo log.Txhawm rau kom paub txog cov txheej txheem dynamic ntawm kev hnav khaub ncaws tsis tu ncua sib tsoo lub log thiab kev them nyiaj tas mus li hauv cov txheej txheem sib tsoo, yuav tsum siv lub tshuab tshwj xeeb nruam sib tsoo tshuab.Cov txheej txheem dynamic ntawm kev hnav khaub ncaws tsis tu ncua yog pom nyob rau hauv daim duab 2. Qhov pib sib tsoo log txoj kab uas hla yog ds1, lub workpiece txoj kab uas hla yog dw1, thiab txoj kab uas hla ntawm lub pob zeb diamond hnav khaub ncaws rau cov menyuam yog dr.Thaum lub sij hawm sib tsoo, yog tias lub vojvoog workpiece txo qis ntawm qhov ceev ntawm vfr, vim yog kev hnav khaub ncaws tsis tu ncua, kev sib tsoo lub log yuav tsum txiav rau hauv qhov sib tsoo workpiece ntawm qhov ceev ntawm v2 = vfr + vfrd, thiab cov menyuam hnav khaub ncaws yuav tsum txiav rau hauv kev sib tsoo lub log ntawm qhov ceev ntawm v1 = 2vfrd + vfr, thiaj li hais tias txoj hauj lwm ntawm kev hnav khaub ncaws rau cov menyuam thiab cov sib tsoo log tau hloov.Yog li ntawd, kev sib tsoo tshuab rau kev hnav khaub ncaws tsis tu ncua ntawm kev sib tsoo lub log yuav tsum muaj peev xwm ua kom muaj feem cuam tshuam rau cov kev ntsuas geometrical no.
Qhov zoo ntawm kev txiav tsis tu ncua yog ntau yam, xws li:
1) Lub sijhawm sib tsoo, uas tsuas yog sib npaug rau lub sijhawm hnav khaub ncaws, yog rho tawm, uas txhim kho kev sib tsoo;
2) Lub sijhawm sib tsoo ntev tshaj plaws tsis nyob ntawm qhov hnav ntawm lub log sib tsoo, tab sis ntawm qhov sib tsoo ntev ntawm lub tshuab sib tsoo;
3) Lub zog sib tsoo tshwj xeeb raug txo qis, kev sib tsoo quab yuam thiab sib tsoo kub yog txo, thiab cov txheej txheem sib tsoo yog ruaj khov.
18. Txoj siv sib tsoo yog dab tsi?Qhia luv luv txog qhov muaj pes tsawg leeg thiab cov yam ntxwv ntawm txoj siv abrasive.
Teb: Abrasive siv sib tsoo yog txheej txheem txheej txheem rau kev sib tsoo lub txav abrasive txoj siv nyob rau hauv kev sib cuag nrog lub workpiece nyob rau hauv ib tug coj sib cuag raws li cov duab ntawm lub workpiece.
Txoj siv abrasive feem ntau yog tsim los ntawm peb ntu: matrix, binder thiab abrasive.Lub matrix yog kev txhawb nqa rau cov nplej abrasive thiab tuaj yeem ua los ntawm cov ntawv, paj rwb thiab tshuaj fibers.Feem ntau siv binders muaj xws li tsiaj cov kua nplaum, hluavtaws cob thiab ob qho tib si ua ke.Feem ntau siv binders muaj xws li tsiaj cov kua nplaum, hluavtaws cob thiab ob qho tib si ua ke.Tsiaj kua nplaum muaj cov cua kub tsis tshua muaj zog, tsis tshua muaj kev sib khi lub zog, thiab tsis tiv taus yaig los ntawm kev txiav cov kua dej, yog li nws tsuas yog siv rau kev sib tsoo qhuav;Synthetic resin binder muaj lub zog sib txuas thiab siab hnav tsis kam, haum rau kev tsim cov khoom siv hnyav hnyav.Cov abrasives rau kev siv abrasive yog cov qauv corundum, dawb thiab chromium-muaj corundum, ib leeg siv lead ua corundum, txhuas oxide, zirconium dioxide, ntsuab thiab dub silicon carbide, thiab lwm yam.
19. Dab tsi yog qhov kev faib tawm ntawm abrasive siv sib tsoo?Cov teeb meem dab tsi tshwm sim hauv kev sib tsoo?
Teb: Raws li txoj kev sib tsoo, abrasive siv sib tsoo tuaj yeem muab faib ua cov hlua khi kaw thiab qhib abrasive siv sib tsoo.Abrasive siv sib tsoo tuaj yeem muab faib ua hom log sib cuag, hom phaj hom, hom kev tiv tauj dawb thiab hom kev sib cuag dawb ntab raws li daim ntawv tiv tauj ntawm txoj siv abrasive thiab cov khoom ua haujlwm.
Cov teeb meem uas nquag tshwm sim nyob rau hauv abrasive siv sib tsoo: clogging, sticking, thiab blunting.Tsis tas li ntawd, txoj siv tawv abrasive feem ntau tshwm sim ntau zaus, hnav cov cim thiab lwm yam tshwm sim thaum siv.
20. Ultrasonic vibration sib tsoo yog dab tsi?Luv luv piav qhia txog cov txheej txheem thiab cov yam ntxwv ntawm ultrasonic kev co sib tsoo.
Teb: Ultrasonic sib tsoo yog txheej txheem txheej txheem uas siv qhov yuam kev ntawm kev sib tsoo lub log (lossis workpiece) hauv cov txheej txheem sib tsoo.
Lub tshuab ntawm ultrasonic kev sib tsoo: thaum lub zog magnetizing ntawm lub tshuab hluav taws xob ultrasonic pib, qee qhov ultrasonic zaus tam sim no thiab DC tam sim no rau magnetization yog muab rau cov nickel magnetostrictive transducer, thiab ib qho alternating ultrasonic zaus magnetic teb thiab magnetic teb yog generated. nyob rau hauv lub transducer kauj.Qhov tsis tu ncua polarized magnetic teb enables lub transducer los tsim longitudinal mechanical vibration zog ntawm tib zaus, uas yog kis mus rau lub horn tib lub sij hawm, thiab lub amplitude yog amplified mus rau ib tug predetermined tus nqi los thawb lub resonant cutter bar rau kev co txiav.Lub transducer, horn, thiab cutter pas nrig yog tag nrho cov nyob rau hauv resonance nrog lub ultrasonic zaus tso zis los ntawm lub tshuab hluav taws xob, tsim ib tug resonance system, thiab lub taag point yuav tsum nyob rau hauv lub displacement node.
Nta: Ultrasonic kev sib tsoo tuaj yeem ua kom cov nplej abrasive ntse thiab tiv thaiv nti thaiv.Feem ntau, txiav quab yuam raug txo los ntawm 30% mus rau 60% piv nrog kev sib tsoo zoo tib yam, txiav qhov kub thiab txias, thiab kev ua haujlwm tau nce los ntawm 1 mus rau 4 zaug.Tsis tas li ntawd, ultrasonic vibration sib tsoo kuj muaj qhov zoo ntawm cov qauv compact, tsis tshua muaj nqi, thiab yooj yim rau kev nyiam thiab daim ntawv thov.
Post lub sij hawm: Lub Xya hli ntuj-30-2022