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1, Tsarin kafin canzawa shine mabuɗin

Game da samfurin iska da tankin ruwa na mota, sarrafa inganci na ƙira da ƙera kayayyaki ya fi wahala fiye da nau'in da aka saba, domin galibi ana ƙera wannan nau'in sassan ta hanyar kayan PA6 (PA66) + GF (30-35%), kuma wannan nau'in kayan yana da sauƙin samun nakasu yayin aikin ƙera kayayyaki, kuma girman samfurin da ya dace yana da sauƙin jurewa. Saboda haka, sanin tsarin nakasuwar sa, to, yin ƙirar kafin nakasuwar ya dogara ne akan ƙwarewa da sakamakon nazarin CAE, tsarin ƙira na farko ya zama mabuɗin nasarar ƙera mold.

Ƙungiyar Enuo mold tana da fiye da shekaru 10 na ƙwarewa a kan yin mold kafin lalacewa, kuma ta yi wa abokan cinikin Valeo, Mahle-behr, Delphi da sauran shahararrun abokan cinikin sassan motoci na duniya hidima. A nan mun gabatar da ɗan taƙaitaccen ƙwarewarmu kan yin mold na iska da tankin ruwa na mota. Tabbas, kamfanoni daban-daban suna da ayyuka daban-daban, idan mai karatu yana da ra'ayoyi daban-daban, kuma muna maraba da yin magana da mu da kyau.

2, Yin nazarin zane-zanen sassan, bayyana mahimman sassan samfurin da girmansa

Don fahimtar muhimman fannoni na samfurin da girman maɓallan da ke da alaƙa koyaushe mataki na farko ne lokacin da zane-zanen samfurin abokan ciniki suka iso, to a kula da waɗannan mahimmancin, kamar samfurin "Ƙarshen saman" ("An buƙaci saman ƙarshe" madaidaiciya, lanƙwasa da haƙurin girman siffa, da sauran sassan girman samfurin za su biyo bayan canjin su),"Yankin bututun" ("girman "ƙofar bututu" shima yana da matukar mahimmanci, yawanci ana buƙatar daidaiton matsayi, juriyar silinda da girma) da kuma haƙarƙarin "Boss" da "U-shape" da sauransu, an nuna su a ƙasa:

Don sabon mold, yi pre-deformation akan samfurin (yin "diyya ta kayan" a akasin alkiblar kimantawar nakasa a gaba bisa ga gogewa da nazarin CAE, bayar da shawarar yin su daidai bayan ainihin nakasawar ta faru). Bayan gwajin mold, yin wasu ƙananan gyare-gyare dangane da ainihin nakasawar naƙasar samfurin, don gyara yanayin filastik, siffa da matsayi da sauransu.

3, Zana samfuran.

Domin sauƙaƙe inganta mold na gaba, zana sabon bayanan samfurin 3D da kanmu bisa ga samfurin abokin ciniki ya zama dole (ya kamata a riƙe mahimman sigogi). Tantance ƙimar nakasar samfura, tare da nazarin kwararar mold da gogewa don gyara bayanan samfurin, a ƙasa zaku iya ganin yanayin nakasar da aka fuskanta:

A nan, wasu shawarwari suna da farin cikin rabawa yayin aikin sake zana, kamar: koyaushe fara zana yankin "ƙarshen tushe", bisa ga ƙimar nakasa don zana madaidaiciya, lanƙwasa mai faɗi a gefen samfurin, koma zuwa waɗannan lanƙwasa zuwa saman madaidaiciyar "Meat" (umurnin UG). Ana yin saman madaidaiciya da umarnin "Border" (umurnin UG). Wannan matakin yana da mahimmanci, don sauƙaƙe canje-canje na gaba, zana lanƙwasa da farko, kada ku shimfiɗa saman "umurnin UG" kai tsaye, sannan amfani da saman lalacewa na madaidaiciya sami siffar samfurin ta hanyar "Offset" (umurnin UG). Don guje wa canza sassan mold da yawa yayin inganta mold mai zuwa, yin yanke kayan filastik a yankin "ƙarshen tushe", sannan a dawo da su a cikin gyaran T1-T3 bisa ga ainihin nakasa samfurin (da filastik).

Nasihu masu amfani:

1. Kada ku kwafi saman bayanin martabar kayayyakin abokan ciniki gwargwadon iyawa, ku yi ƙoƙarin zana su da kanku. Don haka, don sauƙin canza waɗannan gyare-gyaren mold, gami da kauri bango. Idan siffofi kwafi ne daga samfurin abokin ciniki to bayan gyare-gyare da yawa, bayanan 3D za su sami karkacewa.
2. A yayin aiwatar da zane, gwargwadon iyawarka don duba bayanan samfurin 2/3D na abokin ciniki don hana su bambanta.

4, Muhimmancin ɓangaren da ke tattare da canjin yanayin samfur

1, Nakasawar samfurin "Surface na ƙarshe"

Duk iyawar da za a iya yi wajen rage tasirin kayan filastik a farkon, zai iya guje wa sake yin gyaran sassan mold gwargwadon iko. Layin ja da ke ƙasa yana nuna yanayin canjin samfurin da aka kiyasta. Da fatan za a lura cewa haƙarƙarin "Boss" ko "U-shaped" ko kayan da ke da alaƙa ya kamata a motsa su tare da "Tushen ƙarshen tushe" tare (Wasu kayan da ke ƙarƙashin boss ɗin suna motsawa ƙasa da 0.5mm, sannan "Boss" shi ma ya kamata ya faɗi ƙasa da 0.5), sannan a zana wasu. Ana ba da shawarar a yi amfani da "surface" (umurnin UG) don zana su.

2, Nakasar samfurin "Tube orifice"

Siffar radius ɗin "R" a tushen bututun ya kamata ta yi daidai da bayanan samfurin abokin ciniki, domin wannan radius ɗin "R" yana shafar ƙarfin muhimmin yanki na samfurin. Ga yanayi na yau da kullun, ya kamata a fara rage bututun zagaye da filastik, sannan a canza ƙimar bisa ga ainihin nakasar, ga babban bututu, ana iya tsara siffar bututun a matsayin siffar oval a gaba.

3, samfurin "U" siffar filastik nakasawa

Filastik mai siffar "U" yana buƙatar yin kusan nakasassu na digiri 2-3, tsakiyar yankin haƙarƙarin "U-shape" ya kamata ya yi yanka kayan tare (hoto na 1). Bayan an zana duk samfuran da kyau sannan a tsara radius ɗin "R" (haka kuma don sauƙaƙe sauyawa, wani lokacin sake gina radius ɗin "R" zai gaza ko kuma ya daɗe yana aiki), idan wasu siffofi a cikin bayanan 3D na abokin ciniki ba su yi nada ba, za mu iya yin nada su idan ba su shafi haɗuwar sassan ba (yawancin abokan ciniki sun fi son siffar kaifi ta kasance tare da radius ɗin "R"). Bugu da ƙari, wasu siffofi masu ban sha'awa a kan babban jikin samfurin suna da girma, wannan nau'in nadawa yakamata ya fi mai da hankali kan daidaito da daidaituwa (hoto na 2).

5, Kammalawa

A sama akwai ƙwarewarmu kan tsara tankin iska da ruwa na mota - "mai sauƙin lalacewa". kammala wannan matakin da kyau, ina tsammanin rabin nasarar ƙera irin waɗannan molds za a samu, to ina sauran rabin yake? don Allah a duba sashe na gaba na wannan labarin "Shin kun san yadda ake yin sashin ƙera mold kafin lalacewa?" mako mai zuwa.
To, masu karatu na gode sosai. Na gode da lokacinku don karantawa a nan. Ina fatan ganinku a sashe na gaba!