Chinthu choyamba kuyankhula ndi zochitika zakuthupi za titaniyamu alloy processing. Ngakhale kudula mphamvu ya titaniyamu aloyi ndi apamwamba pang'ono kuposa zitsulo ndi kuuma chomwecho, chodabwitsa thupi processing titaniyamu aloyi ndi zovuta kwambiri kuposa processing zitsulo, zomwe zimapangitsa kuti kuvutika processing titaniyamu aloyi kukulirakulira.
Kutentha kwa ma alloys ambiri a titaniyamu ndi otsika kwambiri, 1/7 yokha yachitsulo ndi 1/16 ya aluminium. Choncho, kutentha kwaiye m'kati kudula titaniyamu kasakaniza wazitsulo sadzakhala mwamsanga anasamutsidwa workpiece kapena kuchotsedwa tchipisi, koma kudziunjikira m'dera kudula, ndi kutentha kwaiye kungakhale mkulu monga 1 000 ° C kapena kuposa. , zomwe zidzapangitse kuti chidacho chiwonongeke mofulumira, chip ndi kusweka. Mapangidwe a m'mphepete mwake, mawonekedwe ofulumira a m'mphepete mwake, amachititsa kutentha kwambiri m'dera locheka, kufupikitsa moyo wa chidacho.
The mkulu kutentha kwaiye pa ndondomeko kudula komanso kuwononga pamwamba umphumphu wa titaniyamu aloyi mbali, chifukwa mu kuchepa kwa geometric kulondola kwa mbali ndi ntchito kuumitsa chodabwitsa kuti kwambiri amachepetsa kutopa mphamvu.
Kukhazikika kwa titaniyamu aloyi kungakhale kopindulitsa pakugwira ntchito kwa magawo, koma panthawi yodula, kusinthika kwa zotanuka kwa workpiece ndi chifukwa chofunikira cha kugwedezeka. Kupanikizika kodula kumapangitsa kuti "elastic" workpiece ichoke ku chida ndikudumpha kotero kuti kukangana pakati pa chida ndi workpiece ndikokulirapo kuposa kudula. Kukanganako kumapangitsanso kutentha, kumakulitsa vuto la kusayenda bwino kwa matenthedwe a titaniyamu.
Vutoli ndi lalikulu kwambiri mukakonza zigawo zopyapyala kapena zooneka ngati mphete zomwe zimapunduka mosavuta. Sichinthu chophweka kupanga titaniyamu aloyi zopyapyala zokhala ndi mipanda yoyembekezeka yolondola. Chifukwa pamene zida zogwirira ntchito zimakankhidwira kutali ndi chida, mapindikidwe am'deralo a khoma lopyapyala apitilira kuchuluka kwa zotanuka komanso kupindika kwa pulasitiki kumachitika, ndipo mphamvu zakuthupi ndi kuuma kwa malo odulira kumawonjezeka kwambiri. Pakadali pano, makina pa liwiro lomwe adadziwika kale amakhala okwera kwambiri, zomwe zimapangitsa kuti chida chivale chakuthwa. Tikhoza kunena kuti "kutentha" ndi "chiyambi" chomwe chimapangitsa kuti zikhale zovuta kupanga titaniyamu alloys.
Monga mtsogoleri pamakampani opanga zida zodulira, Sandvik Coromant adalemba mosamalitsa njira yodziwira ma alloys a titaniyamu ndikugawana nawo makampani onse. Sandvik Coromant adanena kuti pamaziko a kumvetsetsa njira yopangira ma titaniyamu aloyi ndikuwonjezera zomwe zidachitika kale, njira yayikulu yodziwira ma aloyi a titaniyamu ndi motere:
(1) Zoyikapo ndi geometry zabwino zimagwiritsidwa ntchito kuchepetsa mphamvu yodulira, kudula kutentha ndi kupunduka kwa workpiece.
(2) Sungani chakudya chokhazikika kuti mupewe kuuma kwa workpiece, chidacho chiyenera kukhala nthawi zonse mu chakudya chamagulu panthawi yodula, ndi kudula kwa radial ae kuyenera kukhala 30% ya utali wozungulira pa mphero.
(3) Kuthamanga kwambiri komanso kuthamanga kwakukulu kwamadzimadzi kumagwiritsidwa ntchito pofuna kuonetsetsa kukhazikika kwa kutentha kwa makina opangira makina komanso kupewa kuwonongeka kwa workpiece ndi kuwonongeka kwa zida chifukwa cha kutentha kwambiri.
(4) Sungani m'mphepete mwa tsamba lakuthwa, zida zosamveka ndizomwe zimayambitsa kutentha ndi kutha, zomwe zingayambitse kulephera kwa zida.
(5) Machining mu chikhalidwe chofewa kwambiri cha titaniyamu aloyi mmene ndingathere, chifukwa zinthu zimakhala zovuta makina pambuyo kuumitsa, ndi kutentha mankhwala kumawonjezera mphamvu zakuthupi ndi kumawonjezera kuvala amaika.
(6) Gwiritsani ntchito mphuno yaikulu yozungulira kapena chamfer kuti mudulire, ndipo ikani mbali zambiri momwe mungathere podula. Izi zimachepetsa mphamvu yodulira ndi kutentha pamalo aliwonse ndikuletsa kusweka kwanuko. Pamene mphero titaniyamu aloyi, pakati pa magawo kudula, liwiro kudula ali ndi chikoka chachikulu pa moyo chida vc, kutsatiridwa ndi ma radial kudula kuchuluka (mphero kuya) ae.
Nthawi yotumiza: Apr-06-2022