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Game da Fasahar Madaidaicin Ƙirar Kayan Aikin Gilashin Zinc Alloy Die Casting

Tsarin sarrafawa: Mutuwar Casting. Don adana farashi mai yawa don samarwa mai yawa, inganci mai ƙarfi da kwanciyar hankali.

Madaidaicin QY yana da gogewa a cikin kowane nau'ikan masana'anta, Maraba da aika bincike.

A matsayin kayan aiki mai mahimmanci, mold yana da matsayi mai mahimmanci a cikin masana'antun masana'antu kamar kayan masarufi, lantarki da lantarki, motoci, da masana'antun jiragen sama. Haɓaka matakin fasaha da ingancin ƙirar ƙira yana da mahimmanci a cikin masana'antar masana'anta. Amfani da mold high-gudun sabon fasahar iya muhimmanci inganta mold samar yadda ya dace, mold daidaito da kuma rayuwar sabis, don haka shi ne sannu a hankali maye gurbin EDM molds, kuma kasashen waje mold masana'antu kamfanonin, ya zama babban Trend a mold masana'antu. Lokacin aikace-aikacen fasaha mai saurin sauri a cikin samar da ƙira yana da ɗan gajeren gajere, kuma buƙatun fasaha da ake amfani da su suna da inganci.

Fasaha mai saurin sauri

High-gudun yankan yana da abũbuwan amfãni daga low zafin jiki Yunƙurin (da workpiece ne kawai ya karu da 3 ° C), kananan thermal nakasawa, da dai sauransu The karfe kau kudi da naúrar ikon ne ya karu da 30% zuwa 40%, da yankan karfi da aka rage. da 30%, da kuma yanke rayuwar kayan aiki ya karu. 70%, yankan zafi da aka bari a cikin simintin simintin simintin simintin simintin gyare-gyare yana raguwa sosai, kuma ƙananan girgizar ƙasa mai ƙarancin tsari ya kusan ɓacewa. Tare da haɓakar saurin yankan, ƙimar cirewar kayan da ba komai a kowane lokaci naúrar yana ƙaruwa, lokacin yankewa yana raguwa, kuma ƙimar sarrafawa yana ƙaruwa, ta haka yana rage sake zagayowar masana'antar samfur da haɓaka gasa ta kasuwa. A lokaci guda, babban saurin machining na wuka abun ciye-ciye da babban adadin ciyarwa yana rage ƙarfin yankewa a kan aikin aikin, kuma saurin fitar da kwakwalwan kwamfuta yana rage yankan zafi da ake watsawa zuwa wurin aiki, yana rage damuwa na thermal da nakasawa. , Ta haka inganta aiki na zinc gami mutu-simintin Rigidity, kuma yana ba da damar yanke sassa na bakin ciki. Niƙa mai sauri na kayan tare da taurin wuce HRC60 na iya maye gurbin EDM mai ƙarancin inganci zuwa wani ɗan lokaci, don haka yana rage sake zagayowar masana'anta zuwa wani matsayi. A lokaci guda, aikace-aikacen fasaha mai saurin sauri na iya adana kusan kashi 80% na lokacin niƙa na hannu a cikin sarrafa kayan aikin na gaba, adana farashin sarrafawa da kusan 30%, ƙarancin ƙirar na iya kaiwa Ra0. 1, kuma za'a iya ninka aikin yankan kayan aiki.

Abvantbuwan amfãni na babban-gudun yankan da ake amfani da shi don sarrafa mold

Halayen sarrafa gyare-gyare sune ƙananan ƙananan batches guda ɗaya da kuma hadaddun siffofi na geometric, don haka tsarin sarrafawa yana da tsawo kuma ingancin samarwa ya ragu. A cikin fasahar sarrafa gyare-gyaren gargajiya na gargajiya, kammala taurin ƙira yawanci amfani da EDM da fasahar goge goge ta hannu. Rage lokacin sarrafawa da rage farashin samarwa su ne manyan manufofin haɓaka fasahar sarrafa ƙura. A cikin 'yan shekarun nan, an sami sabbin fasahohi da yawa a cikin fasahar sarrafa ƙira, irin su yanke saurin sauri, ƙirar ƙirar ƙirar CAD/CAE, saurin samfuri, gyare-gyaren fitarwa na lantarki da sarrafa abubuwa masu haɗaka, daga cikinsu mafi ɗaukar ido da inganci shine babban. -Speed ​​Yankan tsari.

Ƙwararren ƙwanƙwasa mai saurin sauri yana amfani da babban sauri da kuma babban adadin abinci na kayan aikin injin don kammala matakan samarwa da yawa na ƙirar ta hanyar yanke. Abubuwan da ake amfani da su na gyare-gyaren machining mai sauri sun fi bayyana a cikin abubuwa masu zuwa:

① High-gudun yankan m machining da Semi-karewa machining ƙwarai inganta karfe kau kudi.

② Yin amfani da kayan aikin yankan na'ura mai sauri, kayan aiki da fasaha, yana iya sarrafa kayan da aka taurare. Don ƙananan gyare-gyaren simintin gyare-gyare, bayan kayan da aka yi da zafi, za a iya kammala roughing da ƙarewa a cikin ɗaki ɗaya; don manyan simintin gyare-gyaren simintin gyare-gyare, roughing da Semi-finishing ana yin su kafin maganin zafi, kuma ana yin ƙarewa bayan maganin zafi da taurin.

③Maɗaukakiyar sauri da madaidaicin yankan wuya ya maye gurbin smoothing, rage yawan lokaci mai cin lokaci mai niƙa, da inganta haɓaka ta 50% idan aka kwatanta da EDM.

④Hard yankan aiwatar da karshe kafa surface don inganta surface ingancin da siffar daidaito (ba kawai da surface roughness ne low, amma kuma surface haske ne high), wanda shi ne mafi m ga mold aiki na hadaddun lankwasa saman.

⑤Yana guje wa decarburization, konewa da micro-cracks da ke haifar da tartsatsin wutar lantarki da niƙa, yana rage girman lalacewar ƙirar bayan an gama, kuma yana haɓaka rayuwar ƙirar ta 20%.

⑥ The workpiece yana da ƙasa da zafi, rage yankan karfi, da kuma kananan thermal nakasawa. Ana amfani dashi a hade tare da fasahar CAD/CAM don saurin sarrafa na'urorin lantarki, musamman na'urorin lantarki tare da sifofi masu rikitarwa da na'urorin lantarki masu sauƙi na nakasa.

High-gudun yankan inji kayan aiki don sarrafa molds

Lokacin zabar kayan aikin injin mai sauri don yankan ƙira mai sauri, kula da waɗannan batutuwa masu zuwa:

(1) Ana buƙatar babban shinge na kayan aikin injin don samun babban iko da babban sauri don saduwa da mashigin mashin da kyau. Yakamata a yi amfani da kayan aikin ƙananan diamita don ƙare ƙira, kuma saurin igiya na iya kaiwa fiye da 15,000 zuwa 20,000 rpm. Kayan aikin injin tare da saurin igiya da ke ƙasa da 10000rpm na iya yin ƙaƙƙarfan mashin ɗin da injin ƙarewa. Idan kana buƙatar saduwa da duka m da gama machining a samar da manyan kyawon tsayuwa, da zaba inji kayan aiki ya kamata ya fi dacewa da biyu spindles da biyu gudu, ko biyu dalla-dalla na lantarki spindles.

(2) Matsala cikin sauri na kayan aikin injin baya buƙatar saurin bugun jini da sauri da yawa. Amma dole ne ya sami matsakaicin matsakaicin ƙimar ciyarwar sarrafawa (30-60m / min) da haɓaka haɓakawa da haɓakawa.

(3) Yana da kyakkyawan tsari mai sauri, tsarin sarrafawa mai mahimmanci, kuma yana da ayyuka na tsaka-tsakin tsaka-tsakin tsaka-tsakin tsaka-tsakin tsaka-tsakin tsaka-tsakin tsaka-tsakin tsaka-tsakin tsaka-tsakin tsaka-tsakin tsaka-tsakin, sarrafawa na gaba, babban hanzari, da kuma matsayi mai mahimmanci.

(4) Zaɓi software na CAD/CAM wanda ya dace da kayan aikin injin mai sauri, musamman software don yankan ƙira mai sauri.

Aikace-aikacen kayan aikin injin axis guda biyar a cikin samar da ƙira yana ƙaruwa sannu a hankali, kuma yana da fa'idodi masu zuwa don yin aiki tare da yankan ƙwanƙwasa mai sauri:

① Za'a iya canza maɓallin yanke kayan aiki, yanayin yankewa yana da kyau, raguwa na kayan aiki yana da amfani don kare kayan aiki da kuma tsawaita rayuwar kayan aiki;

②Hanyar sarrafawa tana da sassauƙa, wanda ke rage tsangwama na kayan aiki, kuma yana iya aiwatar da gyare-gyare tare da sifofi masu rikitarwa da ƙwanƙwasa mai zurfi;

③Babban aiki kewayon, dace da sarrafa iri daban-daban molds.

(Cibiyar injina mai saurin milling mai tsayi biyar)

Kayan aikin injin axis biyar yawanci suna da nau'i biyu: nau'in tebur da nau'in milling, wanda za'a iya zaɓa bisa ga nau'in ƙira.

Fasahar kayan aiki na babban saurin yankan mutu

Ana buƙatar kayan aiki mai sauri da sauri tare da kayan aiki masu dacewa. Yin amfani da kayan aiki na kayan aiki mai wuyar gaske da kayan aikin yumbu na polycrystalline sun ba da damar kayan aiki don samun duka nau'i mai tsayi mai tsayi da matrix mai tsayi a lokaci guda, wanda ke inganta haɓakar mashin mai sauri. Tauri na polycrystalline cubic boron nitride (PCBN) ruwan wukake na iya kaiwa 3500 ~ 4500HV, kuma taurin polycrystalline lu'u-lu'u (PCD) na iya kaiwa 6000 ~ 10000HV. Musamman kayan aiki masu rufi suna taka muhimmiyar rawa a cikin kammalawa da ƙarewa na ƙarfe mai tauri.

Gabaɗaya magana, lokacin da haɓaka kayan aiki da mai riƙe kayan aiki ke sama da 3g, radial runout na kayan aikin yakamata ya zama ƙasa da 0.015mm, kuma tsayin kayan aikin bai kamata ya fi sau 4 diamita na kayan aiki ba. Kwarewar ƙirar ƙirar ƙira mai saurin sauri na cikin gida, lokacin amfani da ƙaramin diamita ball-karshen milling yanka don ƙare mold, saurin madaidaiciya ya wuce 400m/min. Wannan yana da manyan buƙatu don kayan aikin kayan aiki (ciki har da taurin, ƙarfi, taurin ja), siffar kayan aiki (ciki har da aikin cire guntu, daidaiton saman, daidaito mai ƙarfi, da sauransu) da rayuwar kayan aiki. Sabili da haka, a cikin yankan wuyar sauri da ƙarewar ƙira, ba kawai kayan aikin injin mai sauri ba dole ne a zaɓa, amma har ma kayan aikin yankewa da yanke hanyoyin dole ne a zaɓi su da kyau.

Lokacin sarrafa gyare-gyare a cikin babban sauri, ya kamata a kula da waɗannan abubuwan:

① Dangane da abubuwan sarrafawa daban-daban, a hankali zaɓi kayan aikin da aka rufa da carbide, CBN da kayan aikin lu'u-lu'u.

② Ana amfani da ɗan ƙaramin diamita mai yankan ƙwallon ƙwallon ƙafa don gama ƙwanƙolin ƙirar, yawanci diamita na kayan aikin gamawa bai wuce 10mm ba. Dangane da kayan da za a sarrafa da taurin, diamita na kayan aiki da aka zaɓa ya bambanta. A cikin zaɓin kayan aikin kayan aiki, kayan aikin TiAIN ultra-lafiya mai ƙyalli-carbide-rubutun kayan aikin suna da kyawawan yanayin lubrication. Lokacin yankan karfen mutu, suna da mafi kyawun juriya fiye da kayan aikin carbide mai rufi na TiCN.

③ Zaɓi sigogin kayan aiki masu dacewa, kamar kusurwar rake mara kyau. Kayan aikin injuna masu sauri suna buƙatar juriya mai ƙarfi da juriya mai zafi fiye da injina na yau da kullun.

④ Yi amfani da hanyoyi daban-daban don inganta rayuwar kayan aiki, kamar ƙimar abinci mai dacewa, hanyar ciyarwa, hanyar lubrication, da dai sauransu, don rage farashin kayan aiki.

⑤Amfani da mariƙin kayan aiki mai sauri. A halin yanzu, masu riƙe kayan aikin HSK da kayan aikin danna maballin zafi sune aka fi amfani da su. A lokaci guda, ya kamata a biya hankali ga ma'auni mai ƙarfi na gaba ɗaya na tsarin spindle bayan an kulle kayan aiki.


Lokacin aikawa: Agusta-03-2021