Chifukwa chiyani titaniyamu alloy ndizovuta kupanga makina?

1. Zochitika zakuthupi za makina a titaniyamu

Mphamvu yodula ya titaniyamu aloyi processing ndi apamwamba pang'ono kuposa chitsulo ndi kuuma chomwecho, koma chodabwitsa chakuthupi processing titaniyamu aloyi ndi zovuta kwambiri kuposa processing zitsulo, zomwe zimapangitsa kuti titaniyamu aloyi processing kukumana ndi mavuto aakulu.

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 kung'amba. Mapangidwe a m'mphepete mwake, mawonekedwe ofulumira a m'mphepete mwake, amachititsa kutentha kwambiri m'dera locheka, kufupikitsa moyo wa chidacho.makina a titaniyamu

Kutentha kwakukulu komwe kumapangidwa panthawi yodula kumawononganso kukhulupirika kwa titaniyamu aloyi mbali, zomwe zimapangitsa kuchepa kwa geometric kulondola kwa magawo ndi ntchito zolimba zomwe zimachepetsa kwambiri kutopa kwawo.

Kukhazikika kwa titaniyamu aloyi kungakhale kopindulitsa pakuchita pang'ono, koma panthawi yodula, kusinthika kwa zotanuka ndizomwe zimayambitsa 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 pokonza zigawo zopyapyala kapena zooneka ngati mphete zomwe zimakhala zopunduka mosavuta. Sichinthu chophweka kupanga makina a titaniyamu okhala ndi mipanda yopyapyala kuti akhale olondola kwambiri. 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.

"Kutentha" ndiye "wolakwa" yemwe ndi wovuta kukonza ma aloyi a titaniyamu!

2. Kudziwa zaukadaulo kwamakina a titaniyamu cnc

Pamaziko a kumvetsetsa limagwirira ntchito aloyi titaniyamu ndi kuwonjezera zinachitikira m'mbuyomu, njira yaikulu kudziwa pokonza aloyi titaniyamu ndi motere:

(1) Zowonjezera ndi geometry zabwino zimagwiritsidwa ntchito kuchepetsa mphamvu yodula, kudula kutentha ndi kusinthika kwa workpiece.

(2) Sungani chakudya chokhazikika kuti mupewe kuuma kwa workpiece. Chidacho chiyenera kukhala nthawi zonse m'malo odyetserako panthawi yodula, ndipo kuchuluka kwa ma radial ae kuyenera kukhala 30% ya radius panthawi yopera.

(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 mudule momwe mungathere m'mphepete. 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 chinkhoswe radial (mphero kuya) ae.

3. Yambani ndi tsamba kuti muthetse vuto la titaniyamu

Kuvala kwa groove popanga ma aloyi a titaniyamu ndiko kuvala kwapambuyo kumbuyo ndi kutsogolo molunjika kukuya kwa kudula, komwe nthawi zambiri kumachitika chifukwa cha kusanjikiza kowumitsidwa komwe kumasiyidwa ndi kukonzanso koyambirira. The mankhwala anachita ndi kufalikira kwa chida ndi workpiece zakuthupi pa processing kutentha oposa 800 °C ndi chimodzi mwa zifukwa mapangidwe poyambira kuvala. Chifukwa pakupanga makina, mamolekyu a titaniyamu a workpiece amadziunjikira kutsogolo kwa tsamba ndipo "amawotcherera" pamphepete mwa tsamba pansi pa kuthamanga kwambiri ndi kutentha kwakukulu, kupanga m'mphepete mwake. Pamene anamanga m'mphepete peels pa odula m'mphepete, amachotsa ❖ kuyanika carbide wa amaika, kotero machining titaniyamu amafuna kuika zipangizo ndi geometries wapadera.makonda mwatsatanetsatane makina

4. Kapangidwe kachipangizo koyenera kupanga titaniyamu

Cholinga cha titaniyamu alloy processing ndi kutentha, ndipo kuchuluka kwamadzimadzi odula kwambiri ayenera kupopera pamphepete mwa nthawi yake komanso molondola kuti muchotse kutentha. Pali masanjidwe apadera a odula mphero pamsika makamaka opangira titaniyamu.