HSS Twist Drill Bit yog dab tsi?
HSS twist xyaum yog ib hom kev drilling cuab yeej ua los ntawm High-speed steel siv rau hlau ua. HSS yog cov hlau tshwj xeeb uas muaj kev puas tsuaj zoo heev, thermal stability, thiab txiav cov khoom, ua rau nws zoo tagnrho rau kev ua haujlwm hlau xws li drilling. Kev xyaum twist (tseem hu ua auger lossis kauv flute laum) yog ib qho kev xyaum nrog helical flutes uas tso cai rau cov txiav tawm tawm ntawm lub qhov laum sai, txo kev sib txhuam thiab kub thaum lub sijhawm drilling thiab txhim kho kev ua haujlwm drilling. Kev tsim ntawm HSS twist xyaum ua rau lawv haum rau ntau yam ntawm cov khoom siv hlau sib txawv, nrog rau cov hlau, txhuas, tooj liab thiab alloys, thiab lwm yam zoo li ntoo hom machining.
Cov yam ntxwv ntawm High-Speed Steel Twist Drills
1. High Abrasion Resistance: High-speed steel cov ntaub ntawv nthuav tawm zoo heev puas ntsoog, cia cov npoo txiav kom nyob twj ywm ntse rau ncua sij hawm.
2. Thaum tshav kub kub stability: High-speed steel muaj peev xwm ua hauj lwm nyob rau hauv high-temperature ib puag ncig yam tsis muaj ib tug tseem ceeb poob ntawm hardness los yog deformation.
3. Kev Ua Tau Zoo Tshaj Plaws: Cov kauv zawj tsim ntawm kev sib tw twist pab txhawb kev txiav cov hlau zoo thaum txo cov nti.
4. Reliable Machining Quality: High-speed steel twist drills feem ntau xa cov drilled qhov zoo nrog cov qhov ntev thiab du.
HSS Hom Peb siv rau peb qhov kev sib tw twist
Cov qib tseem ceeb ntawm HSS peb siv yog: M42, M35, M2, 4341, 4241.
Muaj qee qhov sib txawv ntawm lawv, feem ntau cuam tshuam nrog lawv cov tshuaj muaj pes tsawg leeg, hardness, thermal stability thiab thaj chaw ntawm daim ntawv thov. Hauv qab no yog qhov sib txawv tseem ceeb ntawm cov qib HSS no:
1. M42 HSS:
M42 muaj 7% -8% cobalt (Co), 8% molybdenum (Mo) thiab lwm yam alloys. Qhov no muab nws zoo abrasion tsis kam thiab thermal stability. M42 feem ntau muaj hardness siab dua, thiab nws cov rockwell hardness yog 67.5-70 (HRC) uas tuaj yeem ua tiav los ntawm kev kho cua sov.
2. M35 HSS:
M35 muaj 4.5% -5% cobalt thiab kuj muaj kev puas tsuaj zoo thiab thermal stability. M35 yog me ntsis nyuaj dua li ib txwm HSS thiab feem ntau tuav lub hardness ntawm betweeb 64.5 thiab 67.59 (HRC). M35 yog tsim rau txiav cov khoom nplaum xws li stainless hlau.
3. M2 HSS:
M2 muaj cov qib siab ntawm tungsten (W) thiab molybdenum (Mo) thiab muaj cov khoom txiav zoo. Lub hardness ntawm M2 feem ntau yog nyob rau hauv thaj tsam ntawm 63.5-67 (HRC), thiab nws yog haum rau machining ntawm hlau uas xav tau ntau dua.
4.4341 HSS:
4341 HSS yog ib qho kev kub ceev steel nrog me ntsis qis alloy cov ntsiab lus txheeb ze rau m2. Lub hardness feem ntau khaws cia siab tshaj 63 HRC thiab tsim nyog rau kev ua haujlwm hlau dav dav.
5.4241 TSI:
4241 HSS kuj tseem yog cov hlau tsis tshua muaj HSS uas muaj cov ntsiab lus alloying tsawg. Lub hardness feem ntau khaws cia nyob ib ncig ntawm 59-63 HRC thiab feem ntau yog siv rau kev ua haujlwm hlau thiab drilling.
Xaiv cov qib HSS kom raug yog nyob ntawm koj qhov kev thov tshwj xeeb thiab cov khoom siv yuav tsum tau ua. Hardness, abrasion tsis kam thiab thermal stability yog qhov tseem ceeb hauv kev xaiv.
Post lub sij hawm: Sep-18-2023