kev taw qhia
Tau ntsib nrog ntau pua yam me me - txoj kab uas hla tho txawv, koj tuaj yeem xaiv qhov zoo tshaj plaws rau koj qhov chaw? Kab lus no muab cov txheej txheem xaiv los ntawm plaub qhov loj me:txoj kab uas hla, overhang ntev, lub cuab tam lub vojvoog, thiab txheej hom, thiab tseem muab lub rooj sib tham pom zoo rau cov khoom siv sib xws.
I. Txoj kab uas hla xaiv: Raws li qhov nyiaj pub dawb rau lub qhov pilot thiab lub hom phiaj machining.
Txoj kab uas hla ntawm ib qho me me - txoj kab uas hla boring cuab tam yuav tsum me ntsis me dua lub qhov tiav txoj kab uas hla, thiab cov txiav nyiaj feem ntau yog tswj ntawm0.1-0.5mm (txoj kab uas hla).
|
Ua tiav qhov taub (mm) |
Pom zoo boring tool diam (mm) |
Ib qho nyiaj -ib sab (mm) |
Piv txwv |
|
Version 1.0 – 2.0 |
0.9 – 1.8 |
0.05 – 0.10 |
Micro-qhov tseeb tho txawv |
|
2.0 – 3.0 |
1.8 – 2.7 |
0.10 – 0.15 |
pa precision tho txawv |
|
3.0 – 5.0 |
2.7 – 4.5 |
0.15 – 0.25 |
Semi-tiav tho txawv + zoo tho txawv |
|
5.0 – 6.0 |
4.5 – 5.5 |
0.25 – 0.40 |
Boring tiav hauv ib qho mus |
Cov ntsiab cai xaiv:
Cov nyiaj tsis txaus → Tsis tuaj yeem kho qhov laum qhov eccentricity thiab roundness
Kev them nyiaj ntau dhau → Kev vibration, chipping, seem tsis sib xws
II. Overhang Ntev: Rigidity Ua Ntej
Overhang ratio=Hla qhov ntev / Tool diameter (L / D)
|
Qhov ratio (L / D) |
Kev ntsuas nruj |
Kev ua haujlwm ruaj khov |
Pom zoo Apps |
|
Tsawg dua los yog sib npaug 2 |
Zoo heev |
ruaj khov heev |
Qhov luv luv, nruj qhov chaw |
|
nees nkaum plaub |
zoo |
Ua kom ruaj khov |
Universal me txoj kab uas hla tho txawv |
|
4 – 6 |
feem ntau |
Cov kev ntsuas yuav tsum tau txo |
Rau qhov tob, nws raug nquahu kom siv lub vibration -damping tho txawv bar. |
|
> 6 |
Qhov txawv |
Yooj yim heev rau kev vibration |
Kev tsim tshwj xeeb (carbide rods, vibration damping, thiab lwm yam) yuav tsum tau siv. |
Nco tseg: Rau txhua qhov sib npaug ntawm qhov sib piv overhang, cov cuab yeej rigidity txo los ntawm kwv yees li 75%. Siv lub cuab yeej luv dua thaum twg los tau; tsis txhob siv lub cuab yeej ntev dua.
III. Kev xaiv ntawm lub vojvoog (R) ntawm cov hniav taub hau arc
Lub vojvoog ntawm lub taub hau ncaj qha cuam tshuam rau kev txiav quab yuam, nto zoo, thiab ntug lub zog.
|
Txoj kab uas hla (mm) |
Cov ntaub ntawv siv tau |
Txiav qhov tob |
Nto nyhuv |
|
0.05 – 0.10 |
Aluminium alloy, tooj liab, me me hlau |
0.05 – 0.15 |
Heev du, haum rau precision machining |
|
0.10 – 0.20 |
Stainless hlau, zoo tib yam hlau |
0.10 – 0.25 |
General precision tho txawv |
|
0.20 – 0.40 |
Cam khwb cia hlau, quenched thiab tempered steel |
0.15 – 0.40 |
Lub zog zoo, haum rau ib nrab -qhov tseeb tho txawv |
|
0.40 thiab siab dua |
Roughing, Intermittent Txiav |
0.30 – 0.60 |
Impact resistant, tab sis nrog ib tug ntxhib nto |
Txoj cai yog: qhov nyuaj ntawm cov khoom, qhov tsis sib xws ntawm cov txheej txheem txiav → xaiv cov cuab yeej loj dua lub vojvoog; kom ua tiav qhov kawg nto tiav → xaiv lub vojvoog me me.
IV. Txheej Txheej Txheej Txheem
|
Txheej hom |
Cov ntaub ntawv siv tau |
Nta |
Cov xwm txheej pom zoo |
|
Uncoated |
Aluminium, tooj liab, yas |
Tus nqi qis, ntse |
Cov ntaub ntawv mos, cov khoom me me |
|
Titanium Nitride (TiN) |
Ordinary steel, cam khwb cia hlau |
General -lub hom phiaj hnav- tiv taus, kub |
Tus nqi siab ua haujlwm |
|
Titanium Carbonitride (TiCN) |
Cam khwb cia hlau, hmoov metallurgy |
High hardness, grey |
Kev hnav tsis kam zoo dua li TiN |
|
TiAlN / AlTiN |
Stainless hlau, titanium alloy, siab - kub alloy |
Kub resistant 800-900 degree |
nyuaj-rau- cov khoom siv tshuab |
|
DLC (Diamond{0}}zoo li Carbon) |
Aluminium, tooj liab, graphite |
Kev sib txhuam qis, tsis yog - nplaum |
Tsis yog -ferrous hlau, txiav qhuav |
V. Cov ntaub ntawv ceev ceev uas pom zoo cov cuab yeej tho txawv rau cov khoom siv
|
workpiece khoom |
tawv |
Pom zoo boring bar khoom |
Pom zoo txheej |
Txiav ceev (m / min) |
Pub ib lub kiv puag ncig (mm / rev) |
|
Ordinary carbon hlau (45 #) |
20 HRC |
Zoo-tungsten hlau |
TiN |
60–100 |
0.03–0.08 |
|
Alloy hlau (40Cr) |
30 HRC |
Integral tungsten hlau |
TiAlN |
50–80 |
0.03–0.07 |
|
Stainless hlau (304) |
20 HRC |
Ultrafine crystalline tungsten hlau |
AlTiN |
40–70 |
0.02–0.05 |
|
Hardened hlau (HRC50) |
50 HRC |
Nanocrystalline tungsten hlau |
AlTiN |
30–50 |
0.01–0.04 |
|
Cam khwb cia hlau (HT250) |
200 HB |
tungsten hlau |
TiCN |
70–120 |
0.05–0.12 |
|
Aluminium alloy (6061) |
100 HB |
Tungsten steel ntse hniav |
DLC / Tsis muaj |
150–300 |
0.05–0.15 |
|
Titanium alloy (TC4) |
35 HRC |
Ultra- zoo crystals + kev co kuj |
AlTiN |
30–50 |
0.02–0.05 |
VI. FAQ
Q: Puas yog me me -inch boring cov cuab yeej xav tau cua txias sab hauv?
A: Thaum L / D Ntau dua lossis sib npaug li 4 lossis thaum ua cov hlau tsis muaj steel lossis titanium alloys, nws tau pom zoo kom siv cov cuab yeej txias txias sab hauv kom tshem tawm cov chips thiab txo qhov kub ntawm qhov chaw txiav.
Q: Kuv yuav txiav txim tau li cas yog tias kuv tau xaiv lub cuab yeej tsis ncaj ncees lawm lub vojvoog?
A: Cov cuab yeej tawg tawg (lub vojvoog me me dhau), kev txiav siab siab thiab qhov sib tsoo ntawm qhov chaw (lub vojvoog loj dhau), qhov roughness tsis ua raws li cov qauv (lub vojvoog thiab noj mismatch).
Q: Dab tsi yog qhov kev vibration ntau dua -resistant, tungsten carbide boring bar lossis welded tho txawv bar?
A: Cov khoom tungsten carbide tho txawv muaj qhov nruj dua tab sis cov yam ntxwv tsis zoo damping, ua rau lawv yooj yim rau siab - zaus flutter; welded steel tuav tau zoo dua damping thiab tsim nyog rau ntev overhangs. Rau qhov sib sib zog nqus machining, welded tho txawv tuav los yog tho txawv tuav nrog kev co damping qauv yog pom zoo.
Hu rau WAT Toolkom tau txais cov tungsten carbide micro tho txawv cov cuab yeej tsim nyog rau koj cov kev ua haujlwm machining.