-Umgangatho ophezulu we-Spot Welding of Die{1}}Cast Aluminium|IiMfuno zeZixhobo kunye neziKhokelo zeNkqubo

I-Die{0}i-aluminiyam ye-aluminiyam (kunye ne-alloys ye-aluminiyam) isetyenziswa kakhulu kwiimoto, kwi-electronics, kwisixhobo sombane, nakwi-structural applications ngenxa yokomelela kwayo okubalaseleyo-ukuya{2}}kumlinganiselo wobunzima, ukuxhathisa ukubola, kunye nokuhanjiswa kwe-thermal.
Nangona kunjalo, ezi mpawu zinye zenza i-die{0}}i-aluminiyam etyhidiweyo kube nzima kakhulu ukuyibona i-weld kunentsimbi okanye intsimbi engatyiwayo. Imingeni ephambili ibandakanya:

• I-conductivity ephezulu ye-thermal- ubushushu busasazeka ngokukhawuleza kwaye alukwazi ukugxila kwindawo ye-weld.
• Ukuxhatshazwa kombane okuphantsi-Ifuna imisinga yewelding ephezulu kakhulu.
• Ukuqulunqwa ngokukhawuleza kwe-oxide-i-aluminium oxide ikhusela ngombane kwaye ikhusela ukuhamba okuzinzile kwangoku.
• Ubushushu obuphantsi bokunyibilika kunye nokwandiswa kwe-thermal ephezulu- kwandisa umngcipheko wokunamathela kwe-electrode, ukuguqulwa, kunye nokwakheka kwe-nugget engahambelaniyo.

Ke ngoko, ukufikelela eyomeleleyo, ezinzileyo kwindawo yokuwelda kwi-die{{0}i-aluminiyam yokuphosa ifuna izixhobo ezilungiselelwe ialuminiyam.ukumelana welding.

1. Izinto ze-Electrode & Geometry

• Izinto ze-Electrode

1. Sebenzisa -ukuqhuba okuphezulu,-okushushu okuphezulu{2}} kokwenziwa kweealloyi zobhedu ezicetyiswa yi-RWMA.
2. Ngewelding yealuminiyam,Udidi loku-1 lwe-RWMAii-alloys zikhethwa ngokubanzi ngenxa yokuhanjiswa kwazo okugqwesileyo.

• Electrode Face Geometry

1. I-radius / i-electrode ephantsi: inceda ukuphula ifilimu ye-oxide kwaye igxininise ubuninzi bangoku.
2. I-electrode ecaba: ifanelekile xa ukumakishwa komphezulu kufuneka kuncitshiswe okanye xa i-welding kwiindawo ezinkulu zoqhagamshelwano.

• Isinxibo se-Electrode

1. I-aluminium welding ibangela ukungcoliseka kwe-electrode ngokukhawuleza kunye nokuguqulwa kwemilo. Ukunxitywa kwe-electrode rhoqo{1}}ngamakhulu aliqela we welds{2}}kunyanzelekile.
2. Uninzi lwe-aluminiyam-abawelders abakhethekileyo baqukaiinkqubo zokunxiba i-electrode ezizenzekelayo.

2. Inkqubo yokupholisa kunye noLawulo lweThermal

I-aluminiyam indawo yokuwelda ibeka imithwalo ephezulu kakhulu yobushushu kwii-electrode.

• Amanzi-e-electrode ezipholileyo anyanzelekile.
• Umyinge wokuhamba kwamanzi ocetyiswayo:0.5–1.5 gal/min (2–6 L/min).
• Jonga ubushushu bamanzi kunye noxinzelelo ukugcina ubushushu be-electrode buzinzile.
• Kwiindawo ezibandayo, qinisekisaanti{0}ukhuseleko lomkhenkcekunye nenkqubo efanelekileyo yokuhambisa amanzi ukuphepha umonakalo.

Inkqubo yokupholisa esebenzayo yandisa ubomi be-electrode kwaye iphucula ukuhambelana kwe-weld.

Umgangatho ophezulu -umgangatho we-aluminiyam ye-aluminiyam yokuwelda ayixhomekekanga kuphela kwisixhobo esifanelekileyo kodwa nakulawulo oluchanekileyo lweparameter.

Iiparamitha eziphambili ziquka:

• I-Welding yangoku

1. I-Aluminiyam idinga kakhulu okwangoku kunentsimbi.
2. Kwi- ~ 1.2 mm kwiphepha le-aluminiyam, iingcebiso eziqhelekileyo zifikelela:22,000–28,000 A (22–28 kA).

• I-Electrode Force

1. Kufuneka uqinisekise unxibelelwano oluzinzileyo kwaye ucinezele ngaphandle kwe-air / oxide layers ngaphandle kokuguqula indawo.
2. Amandla afanelekileyo ayohluka ngokobunzima kunye nejometri kwaye kufuneka alungiswe-alungiswe.

• Ixesha le-Welding

1. Sebenzisaamaxesha amafutshane kakhulu weldngenxa yokutshatyalaliswa kobushushu ngokukhawuleza kwe-aluminiyam.
2. Ngokuqhelekileyo kuphela amashumi eemillisecond (ms) okanye imijikelo embalwa.

• Cofa ixesha kwaye ubambe ixesha

1. Ixesha lokucutha: ibamba iinxalenye ngaphambi kokuba ihambe ngoku, inceda ukuphula ifilimu ye-oxide.
2. Bamba Ixesha: igcina uxinzelelo emva kokuyeka kwangoku kuze kube yilapho i-nugget iqina, iqinisekisa amandla e-weld.

• Kaninzi{{0}i-pulse / Multi{1}}inyathelo lokuWelding

1. Kubunzima, obuntsokothileyo, okanye obuphezulu{0}}ubunzima bokufa{1}i-aluminiyam etyhidiweyo, inkqubo -yamanqanaba amaninzi ({3}}ubushushu → i-weld engundoqo → i-forge) iphucula umgangatho we-nugget kwaye icuthe iziphene.

Kucetyiswa ngamandla ukuseka aishedyuli weldingkwimathiriyeli nganye, ubukhulu, kunye nokuseta izixhobo.

Kwindawo ye-aluminiyam yokumelana ne-welding, umgangatho weshishini ngu:I-ISO 18595: 2021 - I-Resistance Spot Welding ye-Aluminiyam kunye ne-Aluminiyam Ingxubevange

Isebenza kwi-0.6-6 mm ye-aluminiyam sheet, i-extrusions, kunye ne-castings (kuquka i-die{2}}i-aluminiyam yokuphosa).

Amanqaku aphambili:

• Incoma i-alloy electrode yobhedu njenge-ISO 5182 Class A2/2.
• Isebenza kwi-bench welders, i-welding guns, iisistim zerobhothi, kunye -nezixokelelwano zamabala amaninzi.
• Ikhankanya iindlela zokuvavanya ubungakanani benugget, amandla, kunye nomgangatho weweld.
• Ukusebenzisa i-ISO -izixhobo ezihambelanayo zenza kube lula ukufikelela kwimveliso ezinzileyo kunye nokuhlangabezana neemfuno ze-QC.

1. Ukugcinwa kwe-Electrode

Ngenxa yokuba i-aluminiyam ingcolisa kwaye ikhubaza i-electrode ngokukhawuleza, ukunxiba okanye ukulola kwakhona kufuneka kwenzeke ngamaxesha amiselweyo (umzekelo, zonke ii-welds ezingama-500-1,000).

2. UkuJonga iNkqubo yokuPholisa

Ukubeka iliso:

• Umgangatho wohambo
• Ubushushu bamanzi
• Uxinzelelo lwamanzi
• Thintela ubushushu obugqithisileyo, ukwakheka kwesikali, okanye umonakalo owenziwe ngumkhenkce.

3. Ukhuseleko noLawulo lokusiNgqongileyo

• Sebenzisa ngokufanelekileyo ukutsalwa komsi kwiioksidi zesinyithi.
• Qinisekisa ukumiswa kombane okufanelekileyo kunye -nombane ozinzileyo wesigaba sesithathu.
• Kuphephe ukuguquguquka kwamandla ombane, okuchaphazela kakhulu ukuguquguquka kwe-weld.

4. Iirekhodi ezisemgangathweni kunye nokulandelelwa

Gcina iilog ukwenzela:

• Iiparamitha ze-Welding
• Ukugcinwa kwe-Electrode
• Ubume benkqubo yokupholisa
• Iziphumo zovavanyo lwe-Weld (i-tensile, peel, okanye uvavanyo olonakalisayo)

Oku kubalulekile kwimveliso yobuninzi obuzinzile.

5. IiNgcaciso zobuGcisa eziCetyisiweyo (iReferensi)

Ukuqukumbela

I-spot welding die{0}}i-aluminiyam etyhidiweyo inzima kakhulu kunentsimbi yokuwelda. Impumelelo ifuna:

• Ii-electrode ezikhethekileyo
• Amanzi awomeleleyo-iinkqubo zokupholisa nokugcinwa kwazo
• Ulawulo oluchanekileyo lweparameter
• Ukuthotyelwa kwe-ISO 18595
• Ulawulo oluqhubekayo lomgangatho

Kuphela ngokudibanisa izixhobo ezichanekileyo, ulawulo lwenkqubo, kunye nogcino abanokuthi abavelisi bafikelele kwi-welds eyomeleleyo, ephindaphindwayo kwi-die{0}}i-aluminiyam yokuphosa, ngakumbi{1}}kumashishini ayimfuneko aphezulu njengeemoto kunye ne-elektroniki.

Qhagamshelana ngoku