Khoov

Kev khoov yog txheej txheem hlau uas ua cov ntawv tiaj tus lossis cov strips rau hauv V-cov duab, U- cov kab, nkhaus, lossis cov geometries nyuaj uas siv lub zog siv tshuab. Hauv qab no yog cov ncauj lus kom ntxaws txog cov txheej txheem khoov, npog cov txheej txheem, cov khoom siv, thiab cov ntsiab lus tseem ceeb.

 

Kev piav qhia

 

Khoov txhais tau tias hloov nws cov duab yam tsis hloov nws lub ntim. Kev khoov kom raug yog nyob ntawm qhov tseem ceeb xws li cov khoom siv, cov khoom tuab, lub kaum sab xis, khoov nyiaj (qhov twg cov khoom tuaj yeem khoov yam tsis muaj kev tawg). Nws yog ib qho tseem ceeb kom muaj kev ncaj ncees ntawm cov khoom ua haujlwm thaum lub sijhawm khoov.

 

Khoov Solutions

 

Ntawm cov ntaub ntawv hlau fabrication daws, dabtsi yog khoov yog haum rau nws cov nqi - ua tau zoo thiab versatility vim hais tias nws muaj peev xwm tsim complex duab los ntawm ib daim hlau, txo cov sij hawm sib dhos thiab cov nqi. Lub caij no, nws muaj peev xwm tsim tau cov khoom ntim siab ceev ceev. Ntxiv rau, cov txheej txheem hlau bending feem ntau ua rau cov khib nyiab tsawg, yog li txhawb cov khoom siv tau zoo. Cov txheej txheem khoov niaj hnub thiab cov cuab yeej tuaj yeem ua tau zoo ntawm ntau yam hlau, los ntawm cov hlau me me, aluminium, stainless hlau, tooj dag thiab tooj liab, txhim kho cov txheej txheem kev lag luam. Hauv qab no yog cov ntsiab lus luv luv ntawm cov txheej txheem khoov:

 

Bending Methods & Khoom siv
Txoj kev	Khoom siv	Zoo tshaj rau	Ua siab ntev
Nias brake dabtsi yog khoov	Hydraulic / Xovxwm Nres	High -precision V/U khoov	± 0.1-0.5 hli
Roll Bending	3-Yob / Pyramid Roll	Curved panels, cylinders	± 0.5-2 hli
Folding	Vaj Huam Sib Luag Folding Tshuab	Loj daim ntawv hlau qhov chaw	± 0.2-1 hli
Rotary Draw dabtsi yog khoov	CNC Tube Bender	Tight- Radius raj khoov	± 0.1-0.3 hli
Cua Khoov	Nias Brake (Qhib Tuag)	Yooj yim, qis- cuab yeej- tus nqi khoov	± 0.2-0.8 hli

 

Khoov cov qauv thiab kev suav

 

Hauv qab no yog cov qauv kev khoov yooj yim thiab kev suav rau kev tsim cov hlau, suav nrog kev ua haujlwm ntawm cov xovxwm nres, khoov nyiaj, tonnage xav tau, thiab cov nyiaj them rov qab, thiab cov qauv no tuaj yeem suav tias yog kev taw qhia dav dav vim tias cov khoom siv tiag tiag muaj qhov siab ntev thiab kev hloov pauv hauv cov cuab yeej cuab tam. Yog li ntawd, cov neeg ua haujlwm yuav tsum tau kho cov cuab yeej, quab yuam thiab dabtsi yog khoov lub kaum sab xis thaum lub sijhawm ua qauv.

 

1. Khoov Allowance (BA)=[(π × Khoov Lub kaum sab xis) / 180] × (Radius + K-factor × Thickness)

Nco tseg: K-Qhov xwm txheej txawv ntawm cov khoom siv hlau sib txawv

√Cov hlau me me: 0.30-0.35, 0.33 tau txais dav vim nws qhov sib xws.

√Aluminium: 0.4-0.5 (xws li 5052 & 6061), K siab dua vim muaj ntau dua elongation.

√Stainless hlau (304 & 316): 0.35–0.45, ua haujlwm- tawv, thiab qis K rau cov qib annealed.

√Tooj liab (C110, C101): 0.35-0.45, nws txawv nrog npau taws

√ Brass: 0.35-0.42, zoo ib yam li stainless tab sis tsis tshua muaj springback, thiab nws yog ib qho tseem ceeb los txiav txim qhov nruab nrab axis txoj hauj lwm (qhov twg cov khoom tsis stretches los yog compresses).

 

2. Bending Force xam raws li huab cua khoov

Lub zog (tons) =(1.42 x Tensile Strength (MPa) × Length (mm) x Thickness^2 (mm) / Tuag Qhib (mm)

Piv txwv:

Khoom siv: 304 Stainless hlau (600 MPa tensile zog)

Ntev: 1000mm

Thickness: 3 hli

Tuag qhib: 24 mm

Force=(1.42 × 600 × 1000 × 3^2) / 24≈34.6 metric tons

 

3. Khoov Deduction (BD) (Kho kom haum tus qauv rau cov khoom stretch / compression)

BD=2 × (OSSB-BA)

Sab nraum Setback (OSSB)=Tan (Bend Angle/2) x (Radius + thickness)

Piv txwv:

Khoov lub kaum sab xis: 90 degree

Radius: 4 mm

Thickness: 2 hli

BA =5.7 hli

OSSB=tan(45 degree) ×(4+2)=6 mm

Yog li ntawd, BD=2×(6−5.7)=0.6 mm

 

4. Springback Compensation

Nco tseg: nws yog ib qho tseem ceeb heev uas muaj feem xyuam rau cov khoom hlau rebound ncej- dabtsi yog khoov.

Formula: Overbend Angle=Target Angle ×(1+Springback Factor)

Springback factor rau cov hlau sib txawv

√Mild Steel: 1℃-3℃rau 90℃khoov

√Stainless hlau: 5℃-10 degree

√Aluminium: 2℃-5 degree

√Tooj liab 1℃- 4 degree, nws txawv nrog temper

√Brass (4℃-8 degree), tooj dag feem ntau muaj qhov zoo tshaj plaws springback, thiab yog li nws nyuaj rau kev tswj nruj heev.

Muaj plaub yam cuam tshuam rau springback:

√Khoom hardness

√Khoov radius (R)

√Khoov lub kaum sab xis

√Khoom thickness

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5. Yam tsawg kawg nkaus Khoov Radius (Tsis txhob Cracking)

Yam tsawg kawg Radius=Khoom Thickness × Multiplier

Multiplier

√Cov hlau me me: 0.5-1.0

√Stainless hlau: 1.0-2.0, 1.0T rau annealed, 2.0 T rau txias - ua haujlwm.

√Aluminium: 0.8-1.5, 0.8T rau mos, 1.5T rau tawv (piv txwv li, 6061-T6).

√Copper: 0.5-1.0, 0.5T rau mos (O- temper), 1.0T rau tawv (H- temper)

√Brass: 0.6-1.2, 0.6T rau annealed, 1.2T rau tawv.

 

6. Khoov Relief Calculation (Tshem tawm tearing ntawm khoov kawg)

Relief Width Ntau dua lossis sib npaug ntawm Cov Khoom Thickness

Relief Depth Ntau dua lossis sib npaug rau Radius + Thickness

 

 

Common Bending Defects & Solutions

 

Hlau dabtsi yog khoov yog ib qho tseem ceeb heev ntawm cov txheej txheem ntau lawm nyob rau hauv ntau yam lag luam, yuav tsum tau precision thiab kev txawj ntse los tsim high - zoo qhov chaw, thiab hauv qab no yog ib tug luv luv teev cov kev kho mob khoov nrog cov kev daws teeb meem.

 

Common Bending Defects & Solutions
Tsis zoo	Ua rau	Kev daws
Springback	Khoom elasticity	Overbend lub kaum sab xis, siv lub hauv qab tuag
Kev tawg	Lub kaum ntse ntse nkhaus	Nce lub vojvoog, cov khoom siv anneal
Warping	Kev faib tawm tsis sib xws	Siv staggered dabtsi yog khoov ib ntus
Nto Scratches	Cov cuab yeej ua tiav tsis zoo	Polish tuag, siv cov yeeb yaj kiab tiv thaiv

 

Fabmann siv niaj hnub xovxwm nres kev daws teeb meem nrog simulation software uas tso cai rau peb pom cov txheej txheem dabtsi yog khoov & cov nyhuv ua ntej ntau lawm, thiab nws ua rau peb txheeb xyuas qhov tsis xws luag thiab ua kom zoo kho khoov cov kev daws teeb meem rau peb cov neeg siv khoom.