Sisebenzisa iikuki ukuphucula amava akho. Ngokuqhubeka ukhangela le sayithi uyavuma ukuba sisebenzise iikuki. Ulwazi oluthe kratya.
Kwinqaku lakutshanje elipapashwe kwijenali i-Additive Manufacturing Letters, abaphandi baxoxa ngokubaluleka kwe-stainless steel spatter eqoshwe ngeekhemikhali ukwandisa ubomi bomgubo kwimveliso yezongezo.
Uphando: Ukwandisa Ubomi Bomgubo Kwimveliso Yokongeza: Ukukrola Iikhemikhali Kwi-Stainless Steel Spatter. Umfanekiso: MarinaGrigorivna/Shutterstock.com
I-Metal Laser Powder Bed Fusion (LPBF) Ii-splash particles ziveliswa ngamathontsi anyibilikisiweyo akhutshwa kwidama elinyibilikisiweyo okanye ii-powder particles ezifudunyezwa kufutshane okanye ngaphezulu kwendawo yokunyibilika njengoko zidlula kwi-laser beam.
Nangona kusetyenziswa indawo engasebenziyo, ukusebenza okuphezulu kwesinyithi kufutshane nobushushu bayo bokunyibilika kukhuthaza i-oxidation. Nangona amasuntswana okutshiza aphuma ngexesha le-LPBF enyibilika ubuncinane okwethutyana kumphezulu, ukusasazwa kwezinto eziguquguqukayo kumphezulu kunokwenzeka, kwaye ezi zinto zinobudlelwane obuphezulu beoksijini zivelisa iileya ze-oxide ezityebileyo.
Ekubeni uxinzelelo oluyinxenye lweoksijini kwi-LPBF ludla ngokuba phezulu kunolo lwe-atomization yegesi, amathuba okubopha neoksijini ayanda.
Ii-statter zentsimbi engagqwaliyo kunye ne-nickel-based alloy zaziwa ngokuxokozela ngokukhawuleza, zenze iziqithi ukuya kuthi ga kwiimitha ezininzi ubukhulu. Ukongeza, ii-stainless steels kunye ne-nickel-based alloys, ezifana nezo zivelisa ii-statter ze-oxide zohlobo lwesiqithi, zizinto ezisetyenziswa ngomatshini kwi-LPBF, kwaye ukusebenzisa le ndlela kwii-statter zesinyithi ze-LPBF eziqhelekileyo ukubonisa ukuba ukuhlaziywa kweekhemikhali kubaluleke kakhulu kwiPowder ngendlela eqhelekileyo.
(a) Umfanekiso we-SEM wee-statter particles zentsimbi engagqwaliyo, (b) indlela yovavanyo yokutshiza iikhemikhali ezishushu, (c) unyango lwe-LPBF lwee-statter particles ezicociweyo. Umfanekiso uvela ku: Murray, J. W, et al, Additive Manufacturing Letters
Kolu phononongo, ababhali basebenzise indlela entsha yokugrumba iikhemikhali ukususa ii-oxide kumphezulu wee-oxidized stainless steel splash powders. Ukunyibilika kwesinyithi kufutshane nangaphantsi kweziqithi ze-oxide kumgubo kusetyenziswa njengendlela ephambili yokususa i-oxide, evumela ukususwa kwe-oxide okunamandla ngakumbi. Ii-splash, i-etch kunye nee-virgin powders zihluziwe kuluhlu olufanayo lobungakanani be-powder ukuze kusetyenzwe nge-LPBF.
Iqela libonise indlela yokususa ii-oxides kwiinxalenye ze-statter zentsimbi engagqwaliyo, ingakumbi ezo zahlulwe kusetyenziswa iindlela zeekhemikhali ukwenza iziqithi ze-oxide ezityebileyo ze-Si- kunye ne-Mn kumphezulu womgubo. I-316L ye-statter yaqokelelwa kwi-powder bed yeeprints ze-LPBF yaza yakrolwa ngeekhemikhali ngokuntywiliselwa. Emva kokuvavanya zonke iinxalenye ukuya kuluhlu lobukhulu obufanayo, i-LPBF izicwangcisa zibe yi-pass enye nge-statter ekroliweyo elungiselelweyo kunye ne-stainless steel engabonakaliyo.
Abaphandi bajonge ubushushu kunye nee-etchants ezimbini ezahlukeneyo zentsimbi engagqwaliyo. Emva kokuvavanya kuluhlu olufanayo lobukhulu, iitraki ezizodwa ze-LPBF zenziwe ngokusebenzisa iipowder ezifanayo ezingabonakaliyo, iipowder ze-splash, kunye neepowder ze-splash ezikroliweyo ngokufanelekileyo.
Iimpawu ze-LPBF nganye nganye eziveliswa yi-spatter, i-etch spatter, kunye ne-pristine powder. Umfanekiso wokukhulisa okuphezulu ubonisa ukuba umaleko we-oxide oxhaphakileyo kumzila otshisiweyo uyasuswa kumzila otshisiweyo. Umgubo wokuqala ubonise ukuba ezinye ii-oxides zisekho. Umfanekiso: Murray, J. W, et al, Additive Manufacturing Letters
Ukugqunywa kwendawo ye-okside kwi-316L stainless steel splash powder kwehle nge-10, ukusuka kwi-7% ukuya kwi-0.7% emva kokuba i-reagent kaRalph ifudunyezwe ukuya kwi-65 °C kwindawo yokuhlambela ngamanzi kangangeyure e-1. Ibonisa indawo enkulu, idatha ye-EDX ibonise ukwehla kwamanqanaba eoksijini ukusuka kwi-13.5% ukuya kwi-4.5%.
I-spatter eqhotsiweyo ine-oxide slag coating ephantsi kumphezulu wendlela xa ithelekiswa ne-spatter. Ukongeza, i-chemical etching yepowder inyusa ukufunxwa kwepowder esendleleni. I-chemical etching inamandla okuphucula ukusetyenziswa kwakhona kunye nokuqina kwe-spatter okanye ii-powders ezisetyenziswa kakhulu ezenziwe nge-powders zentsimbi engagqwali ezisetyenziswa kakhulu nezimelana nokugqwala.
Kuyo yonke indawo yobukhulu besihluzo esingama-45-63 µm, amasuntswana aqokeleleneyo aseleyo kwimibhobho yokutshiza eqokelelweyo nengaqokelelwanga achaza isizathu sokuba imibhobho elandelelanayo yemibhobho eqokelelweyo neyaqokelelweyo ifana, ngelixa imibhobho yemibhobho yokuqala inkulu malunga nama-50%. Imibhobho eqokelelweyo okanye eyenza i-satellite ibonwe ukuba ichaphazela ubuninzi bobuninzi kwaye ngaloo ndlela ichaphazela umthamo.
I-spatter eqoshiweyo ine-oxide slag coating ephantsi kumphezulu wendlela xa ithelekiswa ne-spatter. Xa ii-oxide zisuswa ngeekhemikhali, ii-semi-bound kunye ne-bare powders zibonisa ubungqina bokubopha okungcono kwee-oxides ezinciphileyo, nto leyo ebangelwa kukumanzi okungcono.
Isicwangciso esibonisa iingenelo zonyango lwe-LPBF xa kususwa ii-oxides ngamakhemikhali kwi-splash powder kwiinkqubo zentsimbi engagqwaliyo. Ukumanzisa okugqwesileyo kufezekiswa ngokususa ii-oxides. Umfanekiso: Murray, J. W, et al, Additive Manufacturing Letters
Ngamafutshane, olu phononongo lusebenzise inkqubo yokugrumba ngeekhemikhali ukuhlaziya iipowders ze-stainless steel ezifakwe i-oxidized kakhulu ngokuzifaka kwi-reagent kaRalph, isisombululo se-ferric chloride kunye ne-cupric chloride kwi-hydrochloric acid. Kuye kwabonwa ukuba ukuntywiliselwa kwisisombululo se-Ralph etchant esishushu kangangeyure e-1 kubangele ukwehla okuphindwe kalishumi kokugubungela indawo ye-oxide kwi-powder etshisiweyo.
Ababhali bakholelwa ukuba ukugrumba ngeekhemikhali kunokuthi kuphuculwe kwaye kusetyenziswe ngokubanzi ukuhlaziya amasuntswana amaninzi asetyenzisiweyo okanye iipowder ze-LPBF, ngaloo ndlela kunyusa ixabiso lezinto ezibizayo ezisekelwe kwipowder.
UMurray, JW, Speidel, A., Spierings, A. et al. Ukwandisa ubomi bomgubo kwimveliso yokongeza: ukukrola iikhemikhali kwi-stainless steel spatter. Iileta zoKwenziwa koNcedo 100057 (2022). https://www.sciencedirect.com/science/article/pii/S2772369022000317
Isikhanyeli: Iimbono ezivezwe apha zezombhali ngokwakhe kwaye azimelanga ngokuyimfuneko iimbono ze-AZoM.com Limited T/A AZoNetwork, umnini kunye nomqhubi wale webhusayithi. Esi sikhanyeli siyinxalenye yemigaqo nemiqathango yokusetyenziswa kwale webhusayithi.
USurbhi Jain ngumbhali wezobugcisa ozimeleyo oseDelhi, eIndiya. UnePh.D. Ufumene iPhD kwiFiziksi kwiYunivesithi yaseDelhi kwaye uthathe inxaxheba kwimisebenzi emininzi yesayensi, yenkcubeko neyezemidlalo. Imvelaphi yakhe yezemfundo ikwiphando lwesayensi yezinto, igxile ekuphuhlisweni kwezixhobo zokukhanya kunye neesensa. Unamava amaninzi ekubhaleni umxholo, ukuhlela, uhlalutyo lwedatha yovavanyo kunye nolawulo lweeprojekthi, kwaye upapashe amaphepha ophando asi-7 kwiijenali zeScopus ezibhalwe kwi-index kwaye wafaka amalungelo obunikazi amabini aseIndiya ngokusekelwe kumsebenzi wakhe wophando. Unomdla wokufunda, ukubhala, uphando kunye netekhnoloji, uyakonwabela ukupheka, ukudlala, ukulima kunye nemidlalo.
UbuJainism, Subi. (24 Meyi 2022). Indlela entsha yokugrumba iikhemikhali isusa ii-oxides kwi-oxidised stainless steel splash powder. AZOM. Ifunyenwe ngoJulayi 21, 2022 kwi https://www.azom.com/news.aspx?newsID=59143.
UbuJainism, Subi. "Indlela entsha yokugrumba iikhemikhali yokususa ii-oxides kwi-oxidized stainless steel spatter powder". AZOM.Julayi 21, 2022..
UbuJainism, Subi.”Indlela entsha yokugrumba iikhemikhali yokususa ii-oxides kwi-oxidized stainless steel spatter powder”.AZOM.https://www.azom.com/news.aspx?newsID=59143.(Ifikelelwe nge-21 kaJulayi 2022).
UbuJainism, Subi.2022. Indlela entsha yokugrumba iikhemikhali yokususa ii-oxides kwi-oxidized stainless steel splash powder. AZoM, ifikelelwe ngoJulayi 21, 2022, https://www.azom.com/news.aspx?newsID=59143.
Kwi-Advanced Materials ngoJuni 2022, i-AZoM ithethe noBen Melrose we-International Syalons malunga nemarike yezinto eziphucukileyo, i-Industry 4.0, kunye nokuqhubela phambili kwi-intanethi.
Kwi-Advanced Materials, i-AZoM ithethe noVig Sherrill kaGeneral Graphene malunga nekamva le-graphene kunye nendlela iteknoloji yabo entsha yokuvelisa eya kunciphisa ngayo iindleko ukuvula ihlabathi elitsha lezicelo kwixesha elizayo.
Kolu dliwanondlebe, i-AZoM ithetha noMongameli weLevicron uGqr. Ralf Dupont malunga nokwenzeka kwe-spindle entsha yemoto (U)ASD-H25 kwishishini le-semiconductor.
Fumanisa i-OTT Parsivel², imitha yokufuduka nge-laser enokusetyenziselwa ukulinganisa zonke iintlobo zemvula. Ivumela abasebenzisi ukuba baqokelele idatha ngobukhulu kunye nesantya samasuntswana awelayo.
I-Environics inikezela ngeenkqubo zokuntywila ezizimeleyo kwiityhubhu zokuntywila ezisetyenziswa kanye okanye ezininzi.
I-MiniFlash FPA Vision Autosampler evela kwiGrabner Instruments yi-autosampler eneendawo ezili-12. Sisixhobo sokwenza izinto ngokuzenzekelayo esenzelwe ukusetyenziswa ne-MINIFLASH FP Vision Analyzer.
Eli nqaku libonelela ngovavanyo lokuphela kobomi beebhetri ze-lithium-ion, kugxilwe ekusetyenzisweni kwakhona kwenani elikhulayo leebhetri ze-lithium-ion ezisetyenzisiweyo ukuze kube neendlela ezizinzileyo nezijikelezayo zokusetyenziswa nokusetyenziswa kwakhona kweebhetri.
Ukubola kukubola kwe-alloy ngenxa yokuvezwa kokusingqongileyo. Iindlela ezahlukeneyo zisetyenziselwa ukuthintela ukubola kokubola kwe-alloy zesinyithi ezivezwe kwimeko yomoya okanye ezinye iimeko ezimbi.
Ngenxa yokwanda kwemfuno yamandla, imfuno yamafutha enyukliya nayo iyanda, nto leyo ekhokelela ekwandeni okukhulu kwemfuno yetekhnoloji yokuhlolwa emva kokukhanyiswa kwemitha (PIE).