
Ngativei chokwadi, kana vanhu vazhinji vakanzwa 'kunaya kuri kuomesa simbi isina tsvina', vanofunga nezvegamba redatareti - 17-4PH, pamwe 15-5PH, nenhamba idzo dzinoshamisa dzesimba regoho. Chokwadi chiri pauriri hwechitoro, kunyanya mune dzakaomarara dzakakandwa uye dzakagadzirwa zvinhu, imhuka yakasiyana. Haisi yekungorova nhamba yekuoma; ndezvekutarisira kutamba pakati pemhinduro yekurapa, kuchembera kutenderera, uye kukanganiswa kusingadzivisiki kunouya nazvo, zvese nepo chikamu chacho chinowanzove chakaoma, chakatetepa-chidziro chekudyara mari. Ndimo munogara ruzivo chairwo, nemisungo yakajairika.
Isu tinowana yakawanda yekubvunza ye17-4PH. Ndiko kuenda. Vatengi vanoona iyo 1300 MPa tensile uye vanofunga kuti kudonhedza-mukati kutsiva kune chero yakakwira-simba chinodiwa. Asi ndakaona mapurojekiti achidonha kunze kwegedhi nekuti havana kufunga nezvemamiriro acho. Tiri kutanga nebar stock, forging, kana casting? Kune kambani yakaita seyedu, Qingdao Qiangsenyuan Technology Co., Ltd. (QSY),kupi Investment casting iri musimboti muitiro, iyo nyaya inotanga neyakanyunguduka chemistry uye as-cast mamiriro. The homogeneity of the solution annealed state tisati tambofunga nezvekuchembera kwakakosha. Kukandira kunogona kunge kuine micro-segregation iyo bhaa yakaitwa haina, izvo zvinogona kutungamira kune isingawirirane mhinduro gare gare.
Zvadaro pane machining kutevedzana. Iwe unochina mune inogadziriswa-yakagadziriswa mamiriro (yakapfava, nyore pazvishandiso) wobva wakura? Kana kuti unotanga wachembera wozoedza kudhina 40+ HRC zvinhu? Iyo yekutanga inowanzo hungwaru, asi iwe unofanirwa kubheka mune dimensional shanduko kubva mukuchembera kuenda mukushivirira kwako. Takadzidza izvi nenzira yakaoma kare nemuviri wevharuvhu. Akaigadzira zvakanakisa muCondition A, akaichembera, uye akawana madhayamita akakosha aive akasimba kupfuura fungidziro. Taifanira kugadzirisa zvakare kurapa iyo yese uye muchina zvakare, chinova chidzidzo chinodhura mukuchovha bhasikoro.
Zvinokumanikidza kufunga zvizere. Sarudzo haingori simbi isina tsvina, iketani yemaitiro: kukanda kutendeseka -> mhinduro anneal kufanana -> pre-machining stock allowance -> controlled kuchembera -> yekupedzisira kupera. Kushaya chinongedzo kunodambura cheni. Ndosaka kune echokwadi epamusoro-akavimbika zvikamu, isu tinowanzo kushandira pamwe nevatengi veinjiniya timu kubva padanho reCAD, kwete chete kana iyo RFQ yasvika.
Iyo yakajairwa kuchembera specs (H900, H1025, H1150) mapoinzi ekutanga, kwete evhangeri. H900 inokupa simba repamusoro asi kusimba kwakaderera. Kune giya rekumhara ratakashanda pariri, iyo spec yakadana H900. Asi panguva ye prototyping, Charpy bvunzo payakadzika tembiricha yaive yemuganho. Takakurukura kwenguva refu nemetallurgist yemutengi. Tinogona here kutenga dipu yesimba shoma kuitira kuomarara kuri nani? Isu takamhanya batch paH925 uyezve H950, tichiyedza tensile uye maitiro. H950 yakatipa mwero chaiwo - simba rakanga richiri pamusoro pedhizaini shoma, asi maitiro akasvetuka. Yakatenderwa seimwe nzira yekuchembera. Database haina kutiudza izvozvo; kudzora kuyedzwa uye engineering kutonga kwakaita.
Apa ndipo pane 30-pamwe makore ekukanda uye CNC machining inobhadhara. Unokudziridza manzwiro ekuti chinhu chinofamba sei. Kunaya kuoma alloys, panguva yekukwegura, usangowedzera kuoma; vanochinja zvishoma nezvishoma. Kune yakaoma, asymmetrical investment-cast housing, iyi haisi yunifomu. Isu takatanga kushandisa macoupon echibairo ebvunzo akakandwa kubva pakudururwa kumwe chete, akasungirirwa kunzvimbo dzakakosha dzechikamu kuburikidza nemagedhi matete. Isu tinochembera gungano rose, tobva tacheka makuponi nekuda kwekuoma uye macheki. Iyo inhanho yekuwedzera, asi inomepu mhinduro yekuchembera kune chikamu chejometry, kuchengetedza kusuwa gare gare.
Uye ngatitaure nezve re-work. Ko kana chimwe chikamu chachembera choda kugadziriswa? Ihope huru. Kupisa kunobva mukushisirira pamusoro-kwemakore iyo HAZ, ichigadzira nzvimbo yakapfava. Iwe kazhinji unofanirwa kudzokera kune yakazara mhinduro anneal, iyo inogona kuchinjisa chikamu, wozo-muchinazve uye zera zvakare. Dzimwe nguva, zvinodhura kuti zvirase. Ichi chinhu chakakosha chatinosimbisa panguva yekugadzira ongororo pa QSY: kana weldability iri ramangwana rinogona kuitika, pamwe giredhi rakasiyana re simbi isina tsvina zviri nani, kunyange kana simba rekutanga rakaderera. Mutengo wehupenyu hwese unokosha.
Ichi chinonakidza tangent. Isu tinoshandawo ne special alloys kunge simbi dzinopfuta. Vatengi dzimwe nguva vanovavhiringa nePH isina tsvina. Ose ari maviri anosimbisa nekunaya, asi maraging simbi isimbi-nickel ine cobalt, molybdenum, titanium - hapana chromium yekudzivirira ngura. Imhuka yakasiyana. Mhinduro yavo yekurapa ndeye nyore austenitize uye mhepo inotonhorera, ichigadzira yakapfava martensite. Kuchembera kunozokonzeresa intermetallics. Iko kukanganisa kunowanzo kuderera pane nePH isina tsvina, inova mukana wakakura kwenguva refu, mutete mameshini zvikamu.
Ini ndinorangarira chirongwa chepamusoro-chaiyo actuator shaft. Kupfuura kwekutanga kwaive ne15-5PH. Mushure mekuchembera, kutwasanuka kwaive kwabuda. Takaitwasanudza zvakare nemichina yekutsikisa, asi haina kunaka. Takaronga C250 maraging simbi seimwe nzira. Kupokana necorrosion kwaisadikanwa (kwaive munzvimbo yakavharwa, ine mafuta). Nzira yekugezera yakatipa simba, kurapa kuri nyore kwekupisa nekukanganisa kushoma, uye machinability yakanakisa mumamiriro ekugadzirisa-annealed. Yakanga iri nani. Izvo ndezvekuva neiyo palette yemidziyo uye ruzivo rwekuziva nguva yekubuda kunze kweyakajairwa Stainless bhokisi.
Rudzi urwu rwekuvhenganisa ruzivo rweruzivo rwakakosha. Kushanda ne nickel-based alloys uye cobalt alloys inodzidzisa iwe zvakawanda nezve kunaya kinetics uye kupisa kurapwa senitivity. Ruzivo irworwo runoyerera ichidzokera mumabatiro atinoita iwo akajairika maPH mamakisi. Zvose zvakabatana.
Machining PH isina tsvina, kunyanya muchembere, ndiko kwaunopisa kuburikidza nekushandisa mabhajeti kana ukasangwarira. Inoshungurudza uye inoshanda-inoomesa. Tagara pamitemo mishoma yakaoma. Chekutanga, rigid setups. Chero kutaura kunobva kwashanda-kuomesa pamusoro, zvichiita kuti inotevera ipfuure kugehena. Chechipiri, ceramic kana advanced carbide inoisa ine inopinza, yakanaka geometries. Hatisi kumhanya simbi inomhanya kwazvo pano. Inotonhodza haigone kutaurirana, uye inofanirwa kunge iri yemhando yepamusoro-rubricity, yakagadzirwa nemhando, yakazadzwa nerupo. Chinangwa ndechekudhonza kupisa kunze ne chip, kwete kuirega ichinyura muchikamu uye zvingangoita munharaunda pamusoro-iyo zera.
Kuchera makomba akadzika idambudziko chairo. Peck drilling inofanirwa, nekudzoreredza kuzere kujekesa machipisi uye mafashama anotonhorera pasi nenyere. Takaparadza tumachipisi tunodhura nekukasira machipisi kuti nduru uye matinji kuchibhorani, icho chakabva chabuda mugomba. Ikozvino, yedu CNC zvirongwa zvezvishandiso izvi zvine inochengetedza feed / yekumhanyisa matafura, akavakwa kubva kumakore ekuyedzwa uye kukanganisa. Iyo data pawebhusaiti yavo, https://www.tsingtaocnc.com, inotaura nezve kugona, asi iyo chaiyo kugona ndiyo parameter raibhurari mune edu emuchina controller uye ruzivo rwevagadziri vedu kuziva nguva yekuipfuura.
Surface finish zvine basa zvakare. Nzvimbo yakakasharara yakagadzirwa pane PH alloy inogona kuve yekushushikana yekusimbisa uye corrosion yekutanga saiti. Isu tinowanzo tsanangura kupasa kwekupedzisira ine yakatsaurirwa yekuisa yekupedzisa kana kunyange mwenje wekukuya/kupolisha pakuisa chisimbiso. Inowedzera mutengo, asi kune chikamu munzvimbo inoparadza, yakanyanya-kushushikana, ishuwarenzi.
Saka, izvi zvinotisiya papi kunaya kunoomesa simbi isina tsvina? Iyo inonakidza mhuri yezvinhu, asi inoda ruremekedzo uye maitiro ehurongwa. Haisi nhumbi. Hukoshi hunounzwa nemutengesi haungori mukunyunguduka nekudurura kana mukushandisa muchina weCNC; zviri mukubatanidza nhanho idzodzo nesimbi.
At QSY, makore makumi matatu apfuura shell mold casting, kuisa mari, uye kugadzira zvinoreva kuti takaona matambudziko aya kare. Isu takamonyanisa zvikamu, maturusi akatyoka, uye takatumira makuponi ebvunzo kuti kuchembera kusvike chaiko. Iyo ndangariro yesangano ndiyo inodzivirira kuti nyaya idzodzo dzisadzokororwe pachirongwa chinotevera. Zvinotibvumira kutungamira vatengi kubva kune zvinogona kuitika - sekutaura kuchembera kweH900 kune yakakura, yakatetepa-chikamu chekukanda icho chinozokanganisa zvisingadzoreki, kana kuronga nhanho yewelding mushure mekupedzisira kupisa kupisa.
Ramangwana, ndinofunga, riri mukubatanidzwa kwakatosimba. Pamwe kushandisa simulation kufanotaura kuchembera kukanganisa kwakavakirwa pakukandira geometry, kana kushandiswa kwakapararira kwe-in-process monitoring panguva yemuchina kuona kupfeka kwechishandiso kusati kwakanganisa kuvimbika kwepasi. Asi musimboti uchasara: kunzwisisa kuti PH isina tsvina inzira, kwete chinhu chete. Iwe hausi kutenga simbi yesimbi; uri kutenga iyo yakabudirira kuuraya kweyakapfava yekudziya uye mechaniki kutevedzana. Uye kuwana kutevedzana uku ndiko kunoparadzanisa chikamu chinoshanda kubva kune chakavimbika.
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