I-Welding ayikho nje malunga nokushisa kunye nentsimbi yokuzalisa-imalunga nokulawula. Umzuzwana inxalenye itshintsha i-0.2 mm phantsi koxinzelelo lwe-clamping, i-weld joint ilahlekelwa ukulungelelaniswa. Ukugqwetheka kuyangena. Ukuphinda kusetyenzwe kuyalandela. Kumxube ophezulu, ukuveliswa kwevolumu ephantsi-ingakumbi kwizibiyeli, i-chassis subassemblies, okanye iinkqubo zokunxibelelana kwezolimo-oku akusiyo ingozi yethiyori. Sizibonele ngokwethu: umxhasi waseWisconsin ulahle i-17% yebhetshi yokuqala kuba ijig yabo yentsimbi yentsimbi ayikwazanga kubamba unyamezelo kwimingxunya emithandathu exhomayo kwisibiyeli se-aluminiyam yetrektara. Batshintshela kwi-a Itafile ye-3D ye-welding. Isilaphu sehle saya kutsho kwi-0.8%. Ixesha lomjikelo lehle ngama-41%.
Ukuchaneka kuqala apho i-base plate idibana nephini
Yinyani Itafile ye-3D ye-welding ayilo slab yentsimbi ecaba enemingxuma egrunjiweyo. Yinkqubo yokubamba esekwe kulungelelwaniso eyakhiwe malunga neentsimbi ezintathu zokuphinda-phinda: X (imiqolo ethe tye), Y (iintsika ezithe tye), kunye no-Z (uhlengahlengiso lobude obuthe nkqo). Umngxuma ngamnye-ngokuqhelekileyo i-M6, i-M8, okanye i-1/4′-20-ihlala kwigridi echanekileyo (ngokuqhelekileyo i-50 mm okanye i-2-intshi pitch) kunye nokunyamezela kwendawo ≤ ± 0.05 mm. Izikhonkwane zitshixa kuloo mingxunya, emva koko wamkele izincedisi eziziimodyuli: izibambiso ze-engile, iibhloko zokumisa, izigxina ezijikelezayo, okanye iindawo zokukhangela indawo ezenzelwe ukudibanisa iidatum zenxalenye.
Le ndlela yejiyometri-yokuqala ithatha indawo yoqikelelo ngolungiselelo olulandelekayo. Akusekho migca yokubhala, akusekho uvavanyo-kunye-nempazamo yokubengezela. Omnye umthengi eJamani unqumle ixesha loyilo lokulungisa ukusuka kwiintsuku ezili-11 ukuya kwiiyure ze-38-kungekhona ngokukhupha i-CAD, kodwa ngokusebenzisa iimodeli zedijithali zelayibrari ekhoyo ye-pin-and-clamp ngqo kwi-SolidWorks. Iinjineli zabo ngoku zakha iiseti zenyani ngaphambi kokuba kufike imathiriyeli ekrwada.
Inzuzo yokwenyani ibonisa ngexesha lokuphindaphinda. Xa umboneleli weemoto we-Tier-1 efuna ukuqinisekisa ukwahluka kwezibiyeli ezintlanu kwindawo ebiyelweyo yebhetri entsha ye-EV, basebenzise itafile enye ye-3D eneepleyiti zesixhobo ezitshintshayo. Zonke ezi zihlanu zakha zabelane ngesiseko esifanayo. Izinxaxhi zomda zenziwe imaphu-hayi ngokuchasene nemizobo yegama-kodwa ngokuchasene nereferensi yemetroloji yetafile. Loo datha yondliwe ngokuthe ngqo kwi-loop yabo yophononongo ye-DFM.
Kutheni iivenkile ezininzi zithengisa kwi "semi-modular"
Abanye abavelisi babiza nayiphi na ipleyiti etyhidiweyo ene-T-bolts "itafile ye-3D ye-welding." Akunjalo. Ubunakho be-3D bokwenyani bufuna iimpawu ezintathu ezingaxoxisiyo:
Ukwakhiwa kwesiseko esiqinileyo: Ubuncinci be-40 mm ubukhulu, i-EN 10025 S355JR okanye i-ASTM A572 yeBanga lama-50 yentsimbi, enomatshini omcaba ≤ 0.03 mm/m² Ipateni yomngxuma olinganisiweyo: I-CNC-ibhokile, ayigqojozwanga; umngxuma ngamnye oqinisekisiweyo nge-CMM ngokuchasene neendawo zesalathiso ezibalaseleyo-hayi nje umgama ophakathi ukuya embindini, kodwa i-perpendicularity kwinqwelomoya. Ukuphindaphinda kwe-Z-axis: Izikhonkwane ezilungelelanisiweyo zokuphakama ezineendlela zokutshixa ezigcina i-±0.02 mm kwindawo ethe nkqo emva kwemijikelo ye-5,000-iqinisekisiwe ngokwe-ISO 9283 nganye. Siye savavanya iitheyibhile eziphumelele ukuhlolwa okubonakalayo kodwa zasilela ukukhwela ibhayisekile yobushushu: emva kweeyure ze-12 kwi-60 ° C, ubude bepini bukhukuliseke nge-0.13 mm ngenxa yezakhelo ze-aluminiyam ezingaxutywanga. Oku kuqhutywa kukodwa kwenza ukuba i-GD&T ingabikho kwi-perpendicularity kwiiflange ezidityanisiweyo. Ukomelela kwehlabathi lokwenyani kubaluleke ngaphezu kweencwadana ezimenyezelayo.
Ukudityaniswa—kungekhona ukwahlula—kulapho ixabiso lidityaniswa khona
Itafile ye-welding ye-3D ezimeleyo ihambisa ngokuchanekileyo. Kodwa xa ibamba ikhonkco elipheleleyo lenkqubo-isitampu, ukugoba, ukuwelda, ukuhlola-ivula inzuzo yokuphuma ngaphandle komatshini unokuhambelana. Kwi-Botou Haijun Metal Products Co., Ltd., siqhuba iitafile ze-3D kungekhona njengeendawo zokusebenza ezizimeleyo, kodwa njengenkqubo ye-nervous central yeeseli zethu ezidibeneyo.
Nantsi indlela esebenza ngayo: Izindlu ezitsalwa ngokunzulu zentsimbi engenazintsimbi zifika kumatshini wethu wokushishina ngehydraulic. Imiphezulu yedatha ebaluleke kakhulu iqinisekisiwe kwi-CMM yethu-ke indawo yayo echanekileyo ngokumalunga nendawo yemvelaphi yetafile irekhodwa. Elo seti yolungelelwaniso ihamba ngokuzenzekelayo ukuya kwisikhululo serobhothi seMIG. Iiclamps ziyabandakanyeka. Ulandelelwano lwe-weld lwenza. I-Post-weld, i-CMM efanayo ihlola ukugqwesa ngokuchasene nefayile yokumisela i-original-hayi ngokuchasene nomzobo, kodwa ngokuchasene nenjongo ebonakalayo ebanjwe kwi-t=0.
Akukho lahleko yoguqulelo. Akukho kukhutshelwa ngesandla. Ukuphindaphindwa nje, ijometri enokuphicothwa-kwisitampu, ukwenza, ukuwelda, kunye ne-QC. Yiyo loo nto abathengi besakha iivalve zehydraulic manifolds kuMbindi Mpuma we-oyile baxela ukungaphumeleli kwintsimi ye-zero ngaphezulu kweenyanga ze-36: yonke i-weld joint ibambe iprofayili ye-thermal efanayo, ukulawulwa kwe-gap efanayo, ukungena kweengcambu ezifanayo-kuba inxalenye ayizange ishiye indawo yayo yokulungelelanisa.
Qala ngekhonkco lakho elibuthathaka-kungekhona ibhajethi yakho enkulu
Awudingi itafile ye-3m × 2m ukuze uzuze kwi-3D welding. Qala encinci: chonga indawo enye yentlungu ephindaphindiweyo-njengokulungelelaniswa komngxuma ongahambelaniyo kwizibiyeli ezigobileyo, okanye i-warpage kwiindibano ze-thin gauge-kwaye uyifanise neyona nkqubo incinci eqinisekisiweyo eyisombululayo. Itheyibhile ye-1000 × 750 mm kunye negridi ye-M8 kunye ne-12-pin kit iphatha i-83% ye-middle-size industrial fabrication esiyibona imihla ngemihla.
Cela ubungqina kumthengisi wakho—hayi amabango. Cela iingxelo zeCMM zokuchaneka kwendawo yomngxuma. Cela idatha yovavanyo kwi-pin retention force emva kwemijikelo eyi-10,000. Qinisekisa ukuba i-base plate yabo isebenzisa intsimbi eqhelekileyo-kungekhona nje "i-heavy-duty" carbon. Qinisekisa ukuba iziqhoboshi zabo zibandakanya ubuso obuqinileyo, hayi isinyithi esinesitampu kuphela.
Ngenxa yokuba ukulungiswa okuchanekileyo akukho malunga nokuthenga i-hardware. Kumalunga nokubamba injongo yobunjineli-kwaye uyibambe, ngokuchanekileyo, kude kuphume i-arc yokugqibela. Oko kuhambelana kudibanisa kuyo yonke i-weld, i-shift nganye, ngonyaka. Kwaye yindlela ekhawuleza ngayo, ukuveliswa kwesinyithi esomeleleyo kuqala-kungekhona kwitotshi, kodwa etafileni.
