Dab tsi yogTwist Drills?
Twist xyaum yog ib lo lus dav dav rau ntau hom kev xyaum, xws li hlau xyaum, yas xyaum, xyaum ntoo, universal xyaum, masonry thiab pob zeb xyaum.Txhua qhov kev sib tw twist muaj cov yam ntxwv zoo ib yam: Lub helical flutes uas muab cov kev xyaum ua lawv lub npe.Sib txawv twist xyaum yog siv nyob ntawm qhov hardness ntawm cov khoom yuav tsum machined.
Los ntawm lub kaum sab xis helix
Hom N
●Haum rau cov khoom siv xws li cam khwb cia hlau.
●Hom N txiav wedge yog ntau yam vim nws lub kaum sab xis ntawm approx.30 °.
Lub kaum sab xis ntawm hom no yog 118 °.
Hom H
●Zoo tagnrho rau cov ntaub ntawv nyuaj thiab nkig xws li bronze.
●Hom H helix lub kaum sab xis yog nyob ib ncig ntawm 15 °, uas ua rau lub kaum sab xis loj nrog lub ntsej muag tsis ntse tab sis ruaj khov heev.
●Hom H xyaum kuj tseem muaj lub kaum sab xis ntawm 118 °.
Hom W
●Siv rau cov ntaub ntawv mos xws li aluminium.
●Lub kaum sab xis helix ntawm approx.40 ° ua rau lub kaum sab xis me me rau qhov ntse tab sis sib piv tsis ruaj khov txiav ntug.
●Lub kaum sab xis yog 130 °.
Los ntawm cov khoom siv
High Speed Steel (HSS)
Cov khoom tuaj yeem muab faib ua peb hom: high-speed steel, cobalt-muaj cov hlau ceev ceev thiab cov khoom carbide.
Txij li xyoo 1910, cov hlau kub ceev tau siv los ua cov cuab yeej txiav rau ntau tshaj li ib puas xyoo.Tam sim no nws yog cov khoom siv dav tshaj plaws thiab pheej yig tshaj plaws rau cov cuab yeej txiav.High-speed steel drills yuav siv tau nyob rau hauv ob txhais tes xyaum andamore ruaj khov ib puag ncig xws li ib tug drilling tshuab.Lwm qhov laj thawj vim li cas high-speed steel kav ntev ntev yuav yog vim kev kub ceev steel txiav cov cuab yeej tuaj yeem rov ua dua.Vim nws tus nqi qis, nws tsis yog tsuas yog siv togrind drillbits, tab sis kuj siv dav hauv cov cuab yeej tig.
Cobalt-Containing High-Speed Steel (HSSE)
Cobalt-muaj high-speed steel muaj zoo hardness thiab liab hardness tshaj high-ceev steel.Qhov nce hauv hardness kuj txhim kho nws cov hnav tsis kam, tab sis tib lub sij hawm txi ib feem ntawm nws cov toughness.Ib yam li cov hlau ceev ceev: lawv tuaj yeem siv los ua kom muaj ntau zaus los ntawm kev sib tsoo.
CARBIDE (zeeg)
Cementcarbide yog cov khoom siv hlau ua cov khoom sib xyaw.Ntawm lawv, tungsten carbide yog siv los ua cov matrix, thiab qee cov ntaub ntawv siv los ua binders rau sinter los ntawm kub isostatic nias thiab cov txheej txheem nyuaj.Piv nrog rau high-speed steel nyob rau hauv cov nqe lus ntawm hardness, liab hardness thiab hnav tsis kam, nws tau zoo heev.Tab sis tus nqi ntawm cemented carbide txiav cov cuab yeej tseem kim dua li cov hlau ceev ceev.Cemented carbide muaj qhov zoo dua li cov khoom siv yav dhau los ntawm cov cuab yeej lub neej thiab kev ua haujlwm ceev.Hauv kev sib tsoo cov cuab yeej rov ua dua, cov cuab yeej sib tsoo yuav tsum tau ua.
Los ntawm txheej
Uncoated
Cov coatings tuaj yeem kwv yees faib ua tsib hom hauv qab no raws li qhov kev siv:
Uncoated cov cuab yeej yog qhov pheej yig tshaj plaws thiab feem ntau yog siv los ua cov ntaub ntawv mos xws li aluminium alloy thiab cov hlau tsis tshua muaj carbon.
Dub Oxide Txheej
Oxide coatings tuaj yeem muab lubricity zoo dua li cov cuab yeej tsis muaj coated, kuj tseem zoo dua hauv oxidation thiab kub tsis kam, thiab tuaj yeem ua rau lub neej ua haujlwm ntau dua 50%.
Titanium Nitride Txheej
Titanium nitride yog cov khoom siv ntau tshaj plaws, thiab nws tsis haum rau cov ntaub ntawv nrog cov hardness siab thiab ua haujlwm siab.
Titanium Carbonitride Txheej
Titanium carbonitride yog tsim los ntawm titanium nitride, muaj kev kub siab thiab hnav tsis kam, feem ntau yog xim liab lossis xiav.Siv nyob rau hauv Haas rhiav rau tshuab workpieces ua los ntawm cam khwb cia hlau.
Titanium Aluminium Nitride Txheej
titanium aluminium nitride tiv taus qhov kub thiab txias dua li tag nrho cov txheej saum toj no, yog li nws tuaj yeem siv rau hauv qhov chaw txiav ntau dua.Piv txwv li, ua superalloys.Nws kuj tseem tsim nyog rau kev ua cov hlau thiab stainless hlau, tab sis vim tias nws muaj cov khoom siv txhuas, cov tshuaj tiv thaiv yuav tshwm sim thaum ua cov txhuas, yog li tsis txhob ua cov khoom siv txhuas.
Pom zoo Drilling ceev hauv hlau
| Drill Size | |||||||||||||
| 1MM | 2 MM | 3MM | 4 MM | 5MM ua | 6MM ib | 7MM ib | 8MM ua | 9MM ua | 10 hli | 11 MM | 12 MM | 13 MM | |
| STAINLESSSTEEL | 3182 ib | 1591 ib | 1061 ib | 795 ib | 636 ib | 530 | 455 | ib 398 | 354 ib | 318 | 289 | 265 | 245 |
| CAIS IRON | ib 4773 | ib 2386 | 1591 ib | 1193 | 955 ua | 795 ib | 682 ib | 597 ib | 530 | 477 ib | 434 ib | ib 398 | 367 ib |
| PLAINCARBONSTEEL | ib 6364 | 3182 ib | 2121 ib | 1591 ib | 1273 ib | 1061 ib | 909 ib | 795 ib | 707 ib | 636 ib | 579 ib | 530 | 490 ib |
| BRONZE | ib 7955 | ib 3977 | 2652 ib | Xyoo 1989 | 1591 ib | 1326 | 1136 ib | 994 ib | 884 ua | 795 ib | 723 ib | 663 ib | 612 |
| BRASS | ib 9545 | ib 4773 | 3182 ib | ib 2386 | Xyoo 1909 | 1591 ib | 1364 ib | 1193 | 1061 ib | 955 ua | 868 ua | 795 ib | 734 ib |
| tooj liab | 11136 ib | ib 5568 | 3712 ib | 2784 ib | 2227 ib | 1856 | 1591 ib | 1392 ib | 1237 ib | 1114 | 1012 | 928 ib | 857 ib |
| ALUMINIUM | 12727 ib | ib 6364 | 4242 ib | 3182 ib | 2545 ib | 2121 ib | 1818 | 1591 ib | 1414 ib | 1273 ib | 1157 ib | 1061 ib | 979 ib |
HSS xyaum yog dab tsi?
HSS xyaum yog cov xyaum steel uas yog tus cwj pwm los ntawm lawv cov ntawv thov thoob ntiaj teb.Tshwj xeeb tshaj yog nyob rau hauv me me thiab nruab nrab series ntau lawm, nyob rau hauv unstable machining tej yam kev mob thiab thaum twg toughness yuav tsum tau, cov neeg siv tseem cia siab rau high-ceev steel (HSS / HSCO) drilling cov cuab yeej.
Qhov sib txawv hauv HSS xyaum
High-speed steel yog muab faib ua ntau theem zoo nyob ntawm hardness thiab toughness.Alloy Cheebtsam xws li tungsten, molybdenum thiab cobalt yog lub luag haujlwm rau cov khoom no.Ua kom cov khoom sib xyaw ua kom muaj zog ua kom muaj zog, hnav tsis kam thiab kev ua haujlwm ntawm cov cuab yeej, nrog rau cov nqi yuav khoom.Qhov no yog vim li cas nws yog ib qho tseem ceeb uas yuav tau xav txog yuav ua li cas muaj ntau lub qhov yuav tsum tau ua nyob rau hauv cov ntaub ntawv twg thaum xaiv cov khoom txiav.Rau ib tug me me ntawm qhov, qhov zoo tshaj plaws nqi txiav cov ntaub ntawv HSS yog pom zoo.Cov ntaub ntawv zoo dua qub xws li HSCO, M42 lossis HSS-E-PM yuav tsum raug xaiv rau kev tsim khoom.
| HSS qib | HSS | HSCO(tseem HSS-E) | M42(tseem HSCO8) | PM HSS-E |
| Kev piav qhia | Pa high-speed hlau | Cobalt alloyed kev kub ceev steel | 8% cobalt alloyed kev kub ceev steel | Hmoov metallurgically tsim high-speed steel |
| Kev sib xyaw | Max.4.5% cobalt thiab 2.6% vanadium | Min.4.5% cobalt lossis 2.6% vanadium | Min.8% cobalt | Cov khoom xyaw tib yam li HSCO, sib txawv ntau lawm |
| Siv | Universal siv | Siv rau kev txiav kub siab / tsis zoo cua txias, stainless hlau | Siv nrog cov ntaub ntawv nyuaj txiav | Siv nyob rau hauv series ntau lawm thiab rau siab cuab tam lub neej yuav tsum tau |
HSS Drill Bit Selection Chart
| Plastics | ALUMINIUM | tooj liab | BRASS | BRONZE | PLAIN CARBON STEEL | CAIS IRON | STAINLESS STEEL | ||||
| MULTI-PURPOSE | ✔ | ✔ | ✔ | ✔ | ✔ | ||||||
| INDUSTRIAL hlau | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | |||||
| STANDARD hlau | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
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| TITANIUM coated | ✔ | ✔ | ✔ | ✔ | ✔ | ||||||
| TURBO hlau | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ||||
| HSSnrogCOBALT | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ||||
Masonry Drill Bit Selection Chart
| TXOJ CAI BRICK | FIRE BRICK | B35 KHOOM | B45 KHOOM | REINFORCED COV KHOOM | GRANITE | |
| TxujBRICK | ✔ | ✔ | ||||
| Kev lag luam pob zeb | ✔ | ✔ | ✔ | |||
| TURBO COOB | ✔ | ✔ | ✔ | ✔ | ||
| SDS Standard | ✔ | ✔ | ✔ | |||
| SDS INDUSTRIAL | ✔ | ✔ | ✔ | ✔ | ||
| SDS Professional | ✔ | ✔ | ✔ | ✔ | ✔ | |
| SDS RUB | ✔ | ✔ | ✔ | ✔ | ✔ | |
| SDS MAX | ✔ | ✔ | ✔ | ✔ | ✔ | |
| MULTI-PURPOSE | ✔ |
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