Titanium alloy tsim kev nyuaj thiab kev daws teeb meem

Paub txog nws lub teeb yuag thiab lub zog siab, titanium alloys tau dhau los ua cov khoom siv nrov hauv ntau yam lag luam, suav nrog aerospace, kev kho mob thiab tsheb. Vim nws lub zog siab, lub teeb yuag, thiab zoo heev corrosion kuj, nws tau dhau los ua ntau thiab nrov nyob rau xyoo tas los no. Txawm li cas los xij, lub zog siab thiab nruj ntawm titanium alloys ua rau nws nyuaj rau kev tsim, uas ua rau muaj teeb meem rau cov txheej txheem tsim khoom. Hauv tsab xov xwm no, peb yuav txheeb xyuas qhov kev sib tw ntawm titanium alloys thiab tshawb nrhiav cov kev daws teeb meem los daws cov teeb meem no. Peb txoj kev tsim thev naus laus zis rau titanium alloys yuav qhia: kub stamping, dov thiab hydroforming.

Ib qho ntawm cov teeb meem loj hauv kev tsim cov titanium alloys yog lawv cov ductility tsawg, uas tuaj yeem ua rau tawg thiab kua muag thaum lub sijhawm tsim. Qhov qis ductility ntawm titanium alloys yog ntaus nqi rau lawv cov interstitial atoms muaj zog, uas ua rau cov khoom tsis kam mus deformation. Tsis tas li ntawd, cov cua sov tsim thaum lub sij hawm molding txheej txheem kuj ua rau cov khoom deform thiab tawg, ua rau nws nyuaj rau pwm.

Txhawm rau daws cov teeb meem tsim no, ntau lub tswv yim tuaj yeem ua haujlwm. Ua ntej, cov khoom siv pwm tsim nyog yuav tsum raug xaiv kom tsis txhob muaj cua sov ntau dhau thaum lub sijhawm molding txheej txheem. Polycrystalline cubic boron nitride (PCBN) thiab pob zeb diamond-coated cov cuab yeej ua tau zoo txo ​​cov cua sov tsim thaum lub sij hawm tsim. Thib ob, preheating titanium alloy tuaj yeem txhim kho plasticity thiab txo cov kab nrib pleb. Nws raug pom zoo kom preheat titanium alloy mus rau qhov kub ntawm 600 degree -800 degree ua ntej tsim. Qhov no yuav ua rau kom cov plasticity ntawm cov khoom thiab pab txhawb cov txheej txheem molding.

Lwm qhov kev sib tw hauv kev tsim cov titanium alloys yog tias nws hnov ​​​​mob nrog oxygen ntawm qhov kub thiab txias, uas tuaj yeem ua rau oxidation nto thiab puas cov khoom siv. Qhov saum npoo oxidation tuaj yeem ua rau tawg thiab hlawv cov cim ntawm qhov chaw ntawm cov khoom, cuam tshuam rau lub zog thiab cov qauv zoo ntawm cov khoom. Txhawm rau tiv thaiv oxidation saum npoo, qhov chaw tiv thaiv tuaj yeem tsim los ntawm ib puag ncig thaj tsam molding nrog cov roj inert xws li argon lossis nitrogen. Cov huab cua no yuav txo tau cov pa oxygen thiab tiv thaiv oxidation saum npoo.
Thaum kawg, tus nqi ntawm kev tsim cov titanium alloys tuaj yeem txwv tsis pub vim cov khoom siv kim thiab cov khoom siv tshwj xeeb yuav tsum tau ua. Txhawm rau txo cov nqi tsim khoom, cov thev naus laus zis ntau lawm xws li kub stamping, yob txoj kev thiab hydroforming tuaj yeem siv. Cov thev naus laus zis no tuaj yeem ua kom cov khoom tsim tau thiab txo cov khoom pov tseg, tso cai rau kev tsim khoom siv nyiaj ntau dua.

Kub stamping yog kom sov titanium alloy mus rau qhov kub thiab txias thiab tom qab ntawd xuas nrig ntaus rau hauv qhov xav tau. Thermal deformation ntawm cov alloy ua rau nws yooj yim rau cov duab thiab ua rau nws ductility. Cov txheej txheem kub stamping tuaj yeem txo qhov kev sib sau, txhim kho kev ua haujlwm, thiab txhim kho qhov zoo ntawm titanium qhov chaw. Txawm li cas los xij, cov txheej txheem yuav tsum muaj qhov kub thiab txias, thiab cov cuab yeej tsim yuav tsum tiv taus qhov kub thiab txias, ua rau muaj teeb meem rau cov cuab yeej hnav thiab deformation.

Rolling yog lwm txoj hauv kev tsim cov titanium alloys. Thaum lub sij hawm tus txheej txheem no, titanium phaj yog pub ntawm ob rollers thiab maj mam compressed rau hauv cov duab uas xav tau. Cov txheej txheem dov yog tsim nyog rau kev tsim cov khoom nrog cov geometry nyuaj, xws li cov tawv nqaij aerospace thiab cov kiv cua. titanium cov ntaub ntawv yog forged thaum lub sij hawm dov txheej txheem, uas yuav ua rau kom lawv lub zog thiab txo lawv brittleness, uas ua rau lub zoo mechanical zog. Txawm li cas los xij, cov txheej txheem dov tsim cov kev ntxhov siab seem uas yuav ua rau deformation thiab tawg, yuav tsum tau ua ntxiv los yog kev kho cua sov kom txo tau qhov kev ntxhov siab.

Hydroforming suav nrog kev siv cov kua nplaum los ua cov ntaub ntawv titanium. Cov kua dej yog txhaj rau hauv lub raj lossis lwm yam cuab yeej tsim, thiab nws lub siab ua rau cov hlau mus rau qhov xav tau. Hydroforming yog qhov zoo tagnrho rau kev tsim cov loj, complex qhov chaw nrog siab precision thiab nto zoo. Cov txheej txheem tsim cov khoom uas muaj zog thiab hnav. Cov txheej txheem hydroforming, txawm tias nws tus nqi siab dua, tau dhau los ua neeg nyiam vim nws cov txheej txheem tswj hwm thiab tus nqi qis dua.

Hauv cov ntsiab lus, peb txoj kev tsim thev naus laus zis ntawm kub stamping, dov thiab hydroforming yog txoj hauv kev zoo rau kev tswj cov titanium alloys. Txhua txheej txheem muaj nws qhov zoo thiab qhov tsis zoo, thiab kev xaiv ntawm txoj kev nyob ntawm qhov yuav tsum tau ua ntawm qhov tiav. Kev txhim kho ntawm cov txheej txheem tshiab thiab cov txheej txheem yuav txuas ntxiv thawb cov kev txwv ntawm titanium alloy txoj kev thiab pab ua txoj hauv kev kom ruaj khov thiab ua haujlwm tau zoo.