Chip hom thiab tswj
1. Hom nti
Vim yog cov khoom sib txawv ntawm cov khoom ua haujlwm thiab qhov sib txawv ntawm kev txiav, cov duab chips tsim thaum lub sijhawm txiav yog ntau yam. Muaj plaub yam tseem ceeb ntawm daim duab chips: band, knot, granular, thiab crushed, raws li qhia hauv daim duab 1-7.
1) Banded chips. Qhov no yog hom chipping feem ntau. Nws sab hauv yog du thiab nws sab nrauv yog plaub hau. ua
Nyob rau hauv cov ntaub ntawv ntawm yas hlau, xws li chips yog feem ntau tsim nyob rau hauv tej yam kev mob ntawm me me txiav thickness, siab txiav ceev, thiab loj rake lub kaum sab xis.
2) Knobular chips. Kuj tseem hu ua extruded chips. Nws sab nrauv yog zigzag, thiab sab hauv yog qee zaum tawg. Cov chips no feem ntau tsim los ntawm kev txiav qis qis, txiav cov thicknesses loj, thiab cov cuab yeej me me rake kaum.
3) Granular chips. Kuj tseem hu ua unit chips. Thaum lub sij hawm tsim cov nti, yog tias qhov kev ntxhov siab ntawm cov shear nto tshaj qhov tawg ntawm cov khoom siv, cov khoom siv nti poob tawm ntawm cov khoom raug txiav, ua cov chips granular.
4) Crushing chips. Thaum txiav cov hlau tsis huv, vim yog cov yas me me ntawm cov khoom siv thiab lub zog tensile tsawg, tom qab lub cuab yeej raug txiav, cov txheej txheej hlau yog nkig nyob rau hauv qhov kev txiav txim ntawm tensile kev nyuaj siab yam tsis muaj qhov pom tseeb yas deformation nyob rau hauv qhov kev txiav txim ntawm lub hauv ntej ntawm lub cuab tam, tsim ib qho tsis xwm yeem ces cov chips crumbling. Thaum machining cov ntaub ntawv nkig, qhov ntau dua qhov txiav thickness, nws yooj yim dua kom tau cov chips. Thawj peb hom chips yog ntau hom chips thaum machining yas hlau. Thaum cov ribbon nti tsim, cov txheej txheem txiav yog qhov ruaj khov tshaj plaws, kev txiav quab yuam hloov me me, thiab qhov roughness tus nqi ntawm lub tshuab ua haujlwm me me. Lub zog txiav qhov hloov pauv ntau tshaj plaws thaum txiav thaum cov chips granular tsim. Thawj peb hom nti tuaj yeem hloov mus rau ib leeg nyob ntawm kev txiav, piv txwv li, nyob rau hauv cov ntaub ntawv ntawm knotted nti tsim, nws muaj peev xwm tau txais cov chips granular yog tias lub kaum sab xis rake raug txo kom tsawg, txiav ceev yog txo, lossis qhov txiav thickness yog nce; Hloov pauv, yog tias qhov txiav ceev tau nce los yog txiav cov thickness yog txo, strip chips tuaj yeem tau txais.
2. Chip tswj
Hauv kev xyaum ntau lawm, peb pom cov xwm txheej sib txawv nti khiav tawm. Qee cov chips yog dov rau hauv cov qwj thiab tawg ntawm lawv tus kheej thaum lawv ncav cuag qhov ntev; Qee cov chips tau tawg ua C-puab thiab 6-puab: qee qhov tau tawg mus rau hauv cov koob lossis cov khoom me me, txaws txhua qhov chaw thiab suab zoo; Qee cov ribbon chips raug mob nyob ib ncig ntawm lub cuab yeej thiab cov khoom ua haujlwm, uas yooj yim rau kev sib tsoo. Kev khiav tawm ntawm cov nti tsis zoo yuav cuam tshuam rau kev nce qib ntawm kev tsim khoom, yog li chips
Kev tswj hwm yog qhov tseem ceeb heev, tshwj xeeb tshaj yog thaum ua cov kab ntau lawm. Tom qab cov chips raug deformed nyob rau hauv lub deformation cheeb tsam ntawm [ thiab II, hardness nce, lub plasticity txo, thiab cov khoom ua nkig. Nyob rau hauv tus txheej txheem ntawm nti tawm, thaum ntsib obstacles xws li tom qab lub cuab tam, nyob rau hauv cov kev hloov ntawm nto ntawm lub workpiece los yog nyob rau saum npoo yuav tsum machined, yog hais tias tus strain nyob rau hauv ib tug tej qhov chaw ntau tshaj qhov tawg strain nqi ntawm cov khoom siv nti, nti. yuav tawg. Daim duab 1-8 qhia tau hais tias lub nti tawg tawm thaum nws tsoo lub workpiece lossis tom qab lub cuab yeej.
Cov kev tshawb fawb pom tau hais tias qhov ntau dua qhov brittleness ntawm cov khoom siv ua haujlwm (qhov me dua qhov kev puas tsuaj ntawm tus nqi), qhov ntau dua cov nti tuab, thiab ntau dua cov nti curl vojvoog, qhov yooj yim dua rau cov nti tawg. Cov kev ntsuas hauv qab no tuaj yeem coj los tswj cov chips. 1) Chip breaker tau txais yuav. Los ntawm kev teeb tsa lub chip breaker, ib qho kev sib khi quab yuam yog exerted ntawm cov chips nyob rau hauv lub ntws, kom lub nti strain nce thiab nti curl vojvoog txo. Qhov luaj li cas ntawm cov chip breaker yuav tsum tau yoog raws li qhov loj ntawm qhov txiav, txwv tsis pub cov chip tawg yuav raug cuam tshuam. Feem ntau siv chip breaker cross-section duab yog polyline, ncaj, arc, thiab tag nrho arc, raws li qhia hauv daim duab 1-9. Thaum lub kaum sab xis loj loj, lub zog ntawm lub cuab yeej nrog tag nrho arc chip breaker yog qhov zoo dua. Muaj peb hom chip breakers nyob rau pem hauv ntej: parallel, sab nraud, thiab sab hauv, raws li qhia hauv daim duab 1-10. Hom oblique sab nraud feem ntau ua C-shaped chips thiab 6-puab chips, uas tuaj yeem ua tiav nti tawg hauv ntau qhov kev txiav nyiaj;
1) chip breaker yog siv. Los ntawm kev teeb tsa lub chip breaker, ib qho kev sib khi quab yuam yog exerted ntawm cov chips nyob rau hauv lub ntws, kom lub nti strain nce thiab nti curl vojvoog txo. Qhov luaj li cas ntawm cov chip breaker yuav tsum tau yoog raws li qhov loj ntawm qhov txiav, txwv tsis pub cov chip tawg yuav raug cuam tshuam. Feem ntau siv chip breaker cross-section duab yog polyline, ncaj, arc, thiab tag nrho arc, raws li qhia hauv daim duab 1-9. Thaum lub kaum sab xis loj loj, lub zog ntawm lub cuab yeej nrog tag nrho arc chip breaker yog qhov zoo dua. Muaj peb hom chip breakers nyob rau pem hauv ntej: parallel, sab nraud, thiab sab hauv, raws li qhia hauv daim duab 1-10. Hom oblique sab nraud feem ntau ua C-shaped chips thiab 6-puab chips, uas tuaj yeem ua tiav nti tawg hauv ntau qhov kev txiav nyiaj; Hom oblique sab hauv feem ntau tsim cov ntsia hlau ntev ntev, tab sis cov nti tawg ntau yog nqaim; Parallel chip breaking ntau yog qhov chaw nyob nruab nrab.
2) Hloov lub kaum sab xis ntawm lub cuab yeej. Ua kom lub kaum sab xis nkag thiab txiav thickness ntawm lub cuab yeej yog qhov zoo rau kev tawg. Txo cov cuab yeej rake lub kaum ntse ntse, chips yooj yim tawg. Lub kaum sab xis ntawm cov hniav λ tuaj yeem tswj cov kev taw qhia ntws ntawm cov chips, ^, thaum tus nqi yog qhov zoo, cov chips feem ntau curled thiab tawg tom qab tsoo rov qab los ua C-shaped chips los yog ib txwm ntws tawm mus rau hauv daim ntawv kauv: thaum lub cov tswv yim tsis zoo, cov chips feem ntau curled thiab tawg mus rau hauv C-shaped chips los yog 6 tom qab tsoo lub tshuab nto chips.
3) Kho tus nqi txiav. Ua kom cov khoom noj nce ntxiv qhov txiav tuab, uas yog qhov zoo rau chip tawg: tab sis qhov nce yuav ua rau kom tus nqi roughness ntawm machined nto. Tsim nyog txo qhov kev txiav ceev nce qhov kev txiav distortion thiab tseem zoo rau nti tawg, tab sis qhov no yuav txo qis kev ua haujlwm ntawm cov khoom tshem tawm. Cov nyiaj txiav yuav tsum raug xaiv kom tsim nyog raws li qhov tseeb.
