Into yokuqala yokuthetha ngayo yinto ebonakalayo ye-titanium alloy processing. Nangona amandla okusika we-titanium alloy iphezulu kancinane kunentsimbi enobunzima obufanayo, isenzeko somzimba sokusetyenzwa kwe-titanium alloy sintsokothile kakhulu kunoko kusetyenzwa kwentsimbi, okwenza ubunzima bokunyuka kwe-titanium alloy.
I-thermal conductivity ye-titanium alloys iphantsi kakhulu, kuphela i-1/7 yensimbi kunye ne-1/16 ye-aluminium. Ngoko ke, ubushushu obuveliswe kwinkqubo yokusika i-titanium alloys ayiyi kudluliselwa ngokukhawuleza kwi-workpiece okanye ithathwe yi-chips, kodwa iya kuqokelela kwindawo yokusika, kwaye ubushushu obuveliswayo bunokuphakama njenge-1 000 ° C okanye ngaphezulu. , okuya kubangela ukuba umgca wokusika wesixhobo ugqoke ngokukhawuleza, udibanise kunye nokuqhekeka. Ukuqulunqwa komgca owenziweyo, ukubonakala ngokukhawuleza komgca ogugileyo, ukuvelisa ubushushu obuninzi kwindawo yokusika, kunciphise ngakumbi ubomi besixhobo.
Ubushushu obuphezulu obuveliswe ngexesha lenkqubo yokusika kwakhona buyatshabalalisa ingqibelelo yendawo ye-titanium alloy parts, okubangela ukuncipha kokuchaneka kwejometri yamacandelo kunye nomsebenzi onzima owenzela ukunciphisa amandla abo okukhathala.
I-elasticity ye-titanium alloys ingaba luncedo ekusebenzeni kwamacandelo, kodwa ngexesha lenkqubo yokusika, i-deformation elastic ye-workpiece yimbangela ebalulekileyo yokunyakaza. Uxinzelelo lokusika lubangela ukuba i-workpiece "elastic" ihambe kude nesixhobo kwaye ibhobhoze ukwenzela ukuba ingxabano phakathi kwesixhobo kunye ne-workpiece inkulu kunesenzo sokusika. Inkqubo yokukhuhlana iphinda ivelise ubushushu, nto leyo eyenza kube mandundu ngakumbi ingxaki yokungahambi kakuhle kwe-thermal ye-titanium alloys.
Le ngxaki inobuzaza ngakumbi xa kusetyenzwa iindawo ezinodonga olucekethekileyo okanye ezimise okweringi ezigogeke ngokulula. Ayingomsebenzi ulula ukusetyenzwa kwe-titanium alloy ezinodonga olucekeceke iindawo ezilindelekileyo zokuchaneka komlinganiselo. Ngenxa yokuba xa izinto zokusebenza zityhalwa kude ngesixhobo, i-deformation yendawo yodonga oluncinci lugqithise uluhlu lwe-elastic kunye ne-deformation yeplastiki eyenzekayo, kwaye amandla ezinto eziphathekayo kunye nobunzima bendawo yokusika kwanda kakhulu. Ngeli xesha, ukwenza oomatshini ngesantya esimiselweyo sokusika kuba phezulu kakhulu, nto leyo ekhokelela ekunxityweni kwesixhobo esibukhali. Kunokuthiwa "ubushushu" yi "root cause" eyenza kube nzima ukucubungula i-titanium alloys.
Njengenkokeli kwishishini lesixhobo sokusika, u-Sandvik Coromant uye waqulunqa ngononophelo inkqubo yolwazi lwendlela yokucubungula i-titanium alloys kunye nokwabelana nalo lonke ishishini. USandvik Coromant uthe ngesiseko sokuqonda indlela yokucutshungulwa kwe-titanium alloys kunye nokongeza amava adlulileyo, eyona nkqubo iphambili yolwazi lwendlela yokulungisa i-titanium alloys yile ilandelayo:
(1) Ukufakwa kunye nejometri elungileyo kusetyenziselwa ukunciphisa amandla okusika, ukusika ubushushu kunye ne-workpiece deformation.
(2) Gcina isondlo rhoqo ukuze ugweme ukuqina kwe-workpiece, isixhobo kufuneka sihlale sikwimeko yokutya ngexesha lokusika, kunye ne-radial cutting amount ae kufuneka ibe ngama-30% eradiyasi ngexesha lokusila.
(3) I-high-pressure kunye ne-flow flowing cutting cutting fluid isetyenziselwa ukuqinisekisa ukuzinza kwe-thermal ye-machining process kunye nokuthintela ukuchithwa kwendawo yokusebenza kunye nomonakalo wesixhobo ngenxa yokushisa okugqithisileyo.
(4) Gcina i-blade edge ibukhali, izixhobo ezibuthuntu zingunobangela wokwakhiwa kobushushu kunye nokuguga, okunokuthi kukhokelela ngokulula kwisixhobo.
(5) Ukucoca kwimeko ethambileyo ye-titanium alloy kangangoko kunokwenzeka, kuba izinto ziba nzima kakhulu kumatshini emva kokuqina, kunye nonyango lobushushu kwandisa amandla ezinto kunye nokwandisa ukunxiba kokufakwa.
(6) Sebenzisa i-radius yempumlo enkulu okanye i-chamfer ukusika, kwaye ubeke iindawo zokusika ezininzi kangangoko kunokwenzeka ekusikeni. Oku kunciphisa amandla okusika kunye nobushushu kwindawo nganye kwaye kuthintela ukuphuka kwendawo. Xa ukugaya i-titanium alloys, phakathi kweeparitha zokusika, isantya sokusika sinempembelelo enkulu kwisixhobo sobomi vc, silandelwa yi-radial cutting amount (ubunzulu bokugaya) ae.
Ixesha lokuposa: Apr-06-2022