Emva kokugqitywa kwenkqubo ye-nut spot welding, kubalulekile ukuvavanya umgangatho kunye nokunyaniseka kwee-welds. Ukuqhuba imifuniselo ye-post-weld kunika ulwazi oluxabisekileyo kwiipropathi ze-weld zomatshini, amandla, kunye nokuthembeka kwesakhiwo. Eli nqaku liphonononga iindlela ezahlukeneyo zokulinga ezinokuthi zenziwe ukuvavanya kunye nokuhlalutya i-welds ye-nut spot.
- Uvavanyo lwe-Tensile: Uvavanyo lwe-tensile luqhele ukusetyenziswa ukuvavanya iipropathi zoomatshini kunye nokomelela kwamalungu adityanisiweyo. Kolu vavanyo, uthotho lweesampulu ezidityanisiweyo ziphantsi kwemikhosi eqinile kude kube kukungaphumeleli. Iziphumo zibonelela ngolwazi malunga nokuqina kokuqina kokugqibela, amandla esivuno, ukwandiswa, kunye nokuziphatha kokuqhekeka kwee-welds, ukunceda ukuvavanya ukusebenza kwazo zonke kunye nokufaneleka kwesicelo esicetywayo.
- Uvavanyo lwe-Shear: Uvavanyo lwe-Shear lwenzelwe ngokukodwa ukuvavanya amandla okucheba kunye nokuxhathisa i-welds spot. Olu vavanyo lubandakanya ukubeka iisampulu ezidityanisiweyo kumandla okucheba de kwenzeke ukusilela. Idatha efunyenweyo, kubandakanywa umthwalo wokucheba, ukufuduka, kunye nemodi yokungaphumeleli, yenza ukuzimisela kwamandla okucheba kwe-weld kunye nokukwazi kwayo ukumelana nemithwalo esetyenzisiweyo.
- Uhlalutyo lweMicrostructural: Uhlalutyo lwe-Microstructural luvumela ukuvavanywa kwesakhiwo sangaphakathi se-weld kwaye sinikeze ukuqonda kwisakhiwo sayo sengqolowa, indawo echaphazelekayo yokushisa, kunye naziphi na iziphene ezinokuthi ziqhube okanye ziyeke. Ubuchwephesha obufana ne-metallografi, i-microscopy, kunye ne-electron microscopy (SEM) yokuskena (SEM) inokusetyenziselwa ukujonga kunye nokuhlalutya i-microstructure ye-weld, inceda ekuhloleni umgangatho wayo kunye nokuchonga nayiphi na imiba enokuchaphazela ukusebenza kwayo.
- Uvavanyo loBulukhuni: Uvavanyo lokuqina lwenziwa ukulinganisa ukusabalalisa ukuqina kwi-weld zone. Olu vavanyo lunceda ukuvavanya ukuthembeka kolwakhiwo lwe-weld kunye nokuvavanya ubukho bazo naziphi na iindawo ezithambileyo okanye ezinzima ezinokuchaphazela ukomelela kunye nokuqina kwayo. Ubuchwephesha obufana noVickers okanye uvavanyo lobulukhuni be-Rockwell banokuqeshwa ukulinganisa amaxabiso obunzima be-weld kunye nokuchonga naziphi na iiyantlukwano ngaphakathi kwendawo edibeneyo.
- Uvavanyo olungangonakalisi (NDT): Iindlela zokuvavanya ezingonakalisi, ezifana novavanyo lwe-ultrasonic, uvavanyo lwangoku lwe-eddy, okanye uvavanyo lwe-radiographic, lunokusetyenziswa ukuvavanya umgangatho wangaphakathi wee-welds ngaphandle kokwenza umonakalo. Ezi ndlela ziyakwazi ukubona iziphene, ezifana nokuqhekeka, i-voids, okanye i-inclusions, ukuqinisekisa ukuba i-welds ihlangabezana nemigangatho efunekayo kunye neenkcukacha.
Ukuqhuba imifuniselo yasemva kwe-weld kubalulekile ekuvavanyeni umgangatho, amandla, kunye nentembeko yesakhiwo se-nut spot welds. Uvavanyo lwe-tensile, uvavanyo lokucheba, uhlalutyo lwe-microstructural, uvavanyo lokuqina, kunye novavanyo olungonakalisi bubuchule obuxabisekileyo obubonelela ngolwazi olubalulekileyo malunga neempawu ze-welds zoomatshini, ubume bangaphakathi, kunye neziphene ezinokubakho. Ngokwenza olu vavanyo, iinjineli kunye ne-welders zinokuqinisekisa ukuba i-welds ihlangabezana nemigangatho efunwayo kunye neemfuno, ngaloo ndlela iqinisekisa ukuthembeka kwabo kunye nokusebenza kwizicelo zehlabathi zangempela.
Ixesha lokuposa: Jun-15-2023
