Bi mobili dilanni na, Body-in-White (BIW) welding quality bɛ mobili jɔcogo fanga jira k’a ɲɛsin a yɛrɛ ma, wa a bɛ a dilanni sira sabatili jira. Mobili min bɛ mɔgɔ ta cogoya la, o bɛ sɔrɔ4000 fo 6000 spot weld, k' a sɔrɔ kuran mɔbiliw ni nɛgɛdaga minnu fanga ka bon-, olu bɛ se ka tɛmɛ7000 ye weld points ye. Ni welda hakɛ cayalenba don, hali jogindaw minnu tɛ sabati, olu kɛmɛsarada la, olu hakɛ fitinin dɔ bɛ se ka kɛ teliya la ka kɛ jogoɲumanya faratiba ye sɛgɛsɛgɛli laban kɛtuma na. O de kama, mobili dilannikɛlaw ka teli ka fɔlɔ-tɛmɛ weld sɔnni hakɛw ɲini sanfɛ99.5%, ni jɔli yɔrɔ kɔrɔlenw bɛ ka surunya99,9% ye ɲɔgɔndɛmɛ ye.
Don o don sɛnɛfɛnw dilanni na, .sɔgɔsɔgɔninjɛaniwelda barikamawtora fɛn fila ye minnu ka teli ka nɔ bila welda ɲɔgɔndan na. Sɔgɔsɔgɔninjɛ tɛ baarakɛminɛn sanfɛla nɔgɔ dɔrɔn ani ka dɔ fara sɔgɔsɔgɔninjɛ kɔfɛ-sɔgɔli waati kan, nka min nafa ka bon kosɛbɛ, o ye ko a bɛ se ka welda kɔnɔna nafamafɛnw datugu, ka welda barikamaw dɔnni gɛlɛya. Ni welda barikamaw tɛmɛna k’a sɔrɔ u ma dɔn ka don jiginɛw lajɛcogo la, tuma caman na, u bɛ na ni baara caman kɛli ye kokura walima fɛn minnu banna, o bɛ se ka fɛn dilanni waatibolodalenw tiɲɛ ani ka dɔ fara fɛn dilanni musakaw kan kosɛbɛ.
Laadalata AC resistance spot welding systems bɛ se ka fɔlɔ-tɛmɛ hakɛw sɔrɔ cogoya la96% ka se 98% ma ., a fanba bɛ bɔ funteni doncogo sabatili kɔlɔsili danma na. Hali n’a y’a sɔrɔ nin baarakɛcogo hakɛ in tun bɛ sɔn mobili dilanni fɔlɔw la ni nɛgɛ nɔgɔlen ye, bi mobili farikolow bɛ u jigi da nɛgɛw kan minnu fanga ka bon, nɛgɛ minnu dilannen don ni galvanize ye, ani minnu bɛ kɛ ni fɛn caman ye. O fɛnw bɛ taabolo kɔlɔsili gɛlɛn de wajibiya, wa ka dɔ fara welding current kan dɔrɔn, o tɛ bɔli kɛ tugun. O nɔ na, weldaw ka baarakɛcogo ɲɛ ka taa a fɛ, o kun yewelding waveforms kɔlɔsili tigitigi, k’a lajɛ ko fanga donta kelen-kelen bɛɛ bɛ to ka sabati ani ka segin a kan.
Mun na Spatter ni Weak Welds bɛ to ka kɛ?
Fɛn dilanyɔrɔ caman na, a ka c’a la, sɔgɔsɔgɔninjɛ ni welda barikamaw bɛ bɔ fɛnw na minnu tɛ bɛn ɲɔgɔn ma walima baarakɛlaw ka kow. Nka, ɛntɛrinɛti siratigɛ la, a ka c’a la, o nafamafɛnw bɛ tali kɛ funteni doncogo sabatibaliw la. Ni welda kurunba wulila joona kojugu walima ni ɲɔgɔnkanu rezisti bɛ wuli, nɛgɛ min bɛ sigida la, o bɛ se ka wuli joona, ka gɛn ka bɔ welda yɔrɔ la k’a sababu kɛ kuran fanga ye, o bɛ kɛ sababu ye ka sɔgɔsɔgɔninjɛ yelenw lawuli welda lamini na.
Faan wɛrɛ fɛ, welda barikamaw bɛ kɛ ni funteni donbaliya bɛ se ka kɛ sababu ye ka welda nugu min yiriwara kosɛbɛ. A ka c’a la, o fiɲɛ ninnu dɔnni ka gɛlɛn ɲɛ na nka u bɛ se ka dɔ bɔ kosɛbɛ welda fanga la ani sɛgɛn ɲɛnamaya la. Mobili jɔcogo yɔrɔw la, welda barikamaw bɛ se ka dɛsɛ yɔrɔ dogolenw dilan minnu bɛ mobili lakanani tiɲɛ baarakɛwaati jan-waati la walima pankurun tiɲɛni waatiw la.
Walasa ka welding nafamafɛnw faamuya ka ɲɛ ani u dilanni nɔfɛkow, nin ja in bɛ cogoya danmadɔw lajɛ:
Spot Welding Defects minnu bɛ sɔrɔ tuma caman na ani u nɔfɛkow
| Nafa suguya | Yecogo min bɛ kɛ cogoya la | A jujɔ sababu | Fɛn dilanni nɔ min bɛ sɔrɔ |
|---|---|---|---|
| Spatter (Sɔgɔsɔgɔninjɛ). | Nɛgɛdaga minnu bɛ weld lamini | Kuran wuli teliya la walima ka ɲɔgɔn sɔrɔ min tɛ sabati | Dɔ farala sɔgɔli ni elekitorode sɛgɛn kan |
| Weld barikama | Nugget weld min ka dɔgɔn | Funteni doncogo dafalen tɛ | Joli fanga dɔgɔyali |
| Shrinkage Void (Sɔgɔsɔgɔninjɛ Void). | Kɔnɔnafɛnw dilanni | Nɛnɛ cogoya minnu tɛ sabati | Weld density (weld densité) dɔgɔyali |
| Jeni-Tɛmɛ | Materiel perforation (Bɔli) min bɛ kɛ | Kuran tɛmɛnen walima tansiyɔn dɔgɔyali | Baarakɛminɛnw ka ban |
Sɛnɛfɛnw dilanni kunnafoniw ka bɔ mobili welding layiniw na, olu b’a jira ko sptter-ko minnu bɛ tali kɛ ɲɔgɔn na, olu bɛ se ka dɔ fara finiko baara hakɛ kan ni30% ka se 50% ma ., k’a sɔrɔ baara kura min bɛ sɔrɔ welda barikamaw fɛ, o bɛ se ka kɛ musaka yeka tɛmɛ o kan siɲɛ saba fo siɲɛ duuruka tɛmɛ welding baarakɛcogo jɔnjɔnw kan. Mobili baarakɛyɔrɔw la, minnu ka ca -mobiliw kɔnɔ, lɛrɛ kelen jɔli waati min ma labɛn, o bɛ se ka kɛ sababu ye ka bɔnɛ sɔrɔ min bɛ daminɛ dɔrɔmɛ ba caman na ka se dɔrɔmɛ ba tan ma, o bɛ kɛ sababu ye ka welda sabatili kɛ jogoɲumanya ni wariko ɲɛtaa ye.
MFDC Welding: K’a ta funteni gɛlɛn na ka taa a bila funteni kɔlɔsili tigitigi la
Laadalata AC spot welding systems bɛ baara kɛ ni50 Hz ye, ka kuran ɲɔgɔn falen-falen bɔ min bɛ zeru tɛmɛ sɛgɛsɛgɛli kelen-kelen bɛɛ kɔnɔ. O kuran tigɛcogo segin-segin in bɛ kɛ sababu ye ka welda yɔrɔ sɔrɔ ka nɛnɛ ni sumaya seginni sɛrɛkiliw sɔrɔ minnu bɛ to senna. O funteni jiginni suguw ka teli ka kɛ sababu ye ka nuguw jɔli sabatibali sɔrɔ ani ka dɔ fara kosɛbɛ sɔgɔsɔgɔninjɛ sɔrɔli kan.
Medium Frequency Direct Current (MFDC) welding systems, o ni ɲɔgɔn cɛ, olu bɛ fanga dontaw sɛmɛntiya ka kɛsanfɛla-fɛrɛnkan kuran min bɛ 1000 Hz sanfɛ, o min bɛ sɔrɔ ka latilen ka kɛ kuran tilennen sabatilen ye. Ikomi kuran bɛ to ka taa a fɛ, funteni donta bɛ kɛ cogo kelen na, o bɛ a to welda nugget ka yiriwa cogo kelen na. O nafa bɛ kɛ nafama ye kɛrɛnkɛrɛnnenya la ni nɛgɛ fanga ka bon-nɛgɛw walima galvanizelenw bɛ solda.
AC ni MFDC Spot Welding baarakɛcogo sumalen
| Paramɛtiri | AC Soudure (Soudure) ye | MFDC ka soudure | Nafa min bɛ sɔrɔ a la |
|---|---|---|---|
| Bɔli Frequency (Bɔli Frequency). | 50 Hz ye | 1.000–4.000 Hz ye | Fɛrɛnkan min ka bon, o bɛ sabatili ɲɛ |
| Sisan suguya | Ka ɲɔgɔn falen-falen | Direct Current (Kuran tilennen). | A bɛ sisan tiɲɛni ban |
| Funteni sabatili | Ka bɛrɛbɛn | Jamanjan | Nugget formation kelen ka ca |
| Spatter Rate (Sɔgɔsɔgɔninjɛ hakɛ). | Sanfɛ | A dɔgɔyara ni 60–70% ye . | Surface nɔgɔli ka dɔgɔn |
| Kɔlɔsili Tiɲɛni | ±8–10% | ±2% kɔnɔ . | Weld consistance (weld consistency) ɲɛnabɔlen don |
| Kuwati baarakɛcogo ɲuman | Ka lajigin | 15–25% ka ca ni o ye | Fanga tacogo dɔgɔyali |
Sɛnɛfɛnw dilanni sigida lakikaw la, MFDC ka welding systems ye ɲɛtaa jira tuma bɛɛ welda jogo la. Mobili dilannikɛla caman y’a jira ko MFDC fɛɛrɛ kurayali bɛ se ka dɔ fara fɔlɔ-pass weld sɔnni kan ka bɔ ɲɔgɔn na97% ka se 99,5% sanfɛ ., ka dɔ bɔ kosɛbɛ baara seginni na ani ka sɛnɛfɛnw bɔli baara kɛcogo ɲɛ.
Multi-Stage Waveform Control: Ka fanga di yɔrɔ minnu na a nafa ka bon
Ni mobili fɛnw bɛ ka gɛlɛya ka taa a fɛ, i n’a fɔ fɛn caman-layer stacks ani fɛn ɲagaminenw i n’a fɔ galvanized steel ani high-strength steel, welding window bɛ dɔgɔya ka taa a fɛ. Ni jikuru wulila ka tɛmɛ, a bɛ se ka kɛ ko a bɛ se ka wuli ka tɛmɛ a dan kan. Ni kuran ma dafa, nuguw dilanni bɛ se ka kɛ a dafalen tɛ. Walasa ka o gɛlɛyaw ɲɛnabɔ, bi MFDC welding systems bɛ u jigi damulti-stade waveform control, o b’a to fanga ka se ka di dɔɔnin dɔɔnin ani cogo la min bɛ kɛ ni fɛɛrɛ ye welding cycle bɛɛ kɔnɔ.
Typique saba-Etape Soudure Waveform Structure
| Dakun | Baarakɛcogo fɔlɔ | Sisan Ratio (Ratio) min bɛ yen | Nafa min bɛ sɔrɔ jogoɲumanya la |
|---|---|---|---|
| Preheat (Stage) ka kɔn ka sumaya | Aw bɛ surface coatings kari | 20–40% | A bɛ dɔ bɔ sɔgɔsɔgɔninjɛ fɔlɔ la |
| Etape principale de soudure | Foro soudure nugget | 100% | A bɛ a to welda fanga bɛ sɔrɔ |
| Forge Stage (Stage) ye | Nugget (nugget) digidigi | 40–60% | A bɛ density (densi) ɲɛ |
Tiɲɛ na, multi-stage waveforms minnu labɛnna ka ɲɛ, olu bɛ welda sabatili ɲɛ kosɛbɛ. Misali la, nɛgɛ galvanizelen solda la, funteni ɲɛfɛla bɛ dɛmɛ ka sanfɛla datugulanw kari ani ka ɲɔgɔnkanu sabatili sabati, ka sɔrɔ dakunba bɛ funteni bɛrɛbɛrɛ sabati walasa ka nugu dilan. Foroji laban bɛ degun kɔrɔsilen kɛ walasa ka nugget density ɲɛ ani ka kɔnɔna nafamafɛnw dɔgɔya.
Ɛntɛrinɛti kunnafoniw b’a jira ko waveform strategies optimisés bɛ se ka dɔ bɔ shrinkage defects by...ka tɛmɛ 80% kan .ka sɔrɔ ka welda fanga caman ɲɔgɔnna mara kɔnɔ±3 N, o bɛ na ni welding baarakɛcogo ye min bɛ se ka segin-ka-bɔ kosɛbɛ.
Closed-Loop Feedback Control bɛ waati jan-waati sabatili sabati
Welding cogoyaw tɛ jɔ abada. Waati tɛmɛnen kɔfɛ, elekitorodew bɛ sɛgɛn, sɛbɛnw janya bɛ ɲɔgɔn ta dɔɔni, ani u dacogo bɛ se ka Changé. Ni waati lakika- musaka tɛ, o fɛn caman b’a la ka welda jogo tiɲɛ dɔɔnin dɔɔnin.
Bi MFDC sitɛmuw bɛ baara kɛclosed-loop jaabiw kɔlɔsili, ka to ka welding current, voltage ani dynamic resistance kɔlɔsi. Ni o taamasiyɛnw sɛgɛsɛgɛra waati yɛrɛ la, o sistɛmu bɛ kuran bɔli kɔfɛtaw ladilan a yɛrɛma walasa ka welda cogoya basigilenw mara.
Mobili welding layini kɔrɔlenw na, a ka c’a la, closed-loop control bɛ se ka:
- Enerji segin-ka-bɔnye kɔnɔ±2%
- Weld fanga caman ɲɔgɔnnabɔli dɔgɔyara ni30–40%
- Fɔlɔ-tɛmɛsira sɔnni hakɛw sabatira99.9%
Mobili baarakɛyɔrɔw la minnu ka ca -, o baarakɛcogo sabatili hakɛ in bɛ dɔ bɔ kosɛbɛ jɔli waati la, ka fɛn dilanni kɛcogo ɲɛ, ani ka fɛn dilanni farati bɛɛ dɔgɔya.
MFDC Spot Welding System ɲuman sugandili
Ka sugandili kɛ min bɛnnen donMFDC ka welding minɛnwo bɛ tali kɛ fɛn caman na ka tɛmɛn sisan seko hakɛ jateminɛlen sumani kan. Sisεmεti min sugandira koɲuman, o ka kan ka taabolo sabatili kuntaalajan-dɛmɛ ani ka fɛnw faralen ɲɔgɔn kan cogo caman na.
Fɔlɔ, jikuruw cogoya sɛgɛsɛgɛli ka kan ka jateminɛ kosɛbɛ. Mobili jɔli bɛ tali kɛ fɛnw kulu suguya caman na, wa se ka porogaramu kɛ waveform stages caman na, o b’a to baarakɛlaw bɛ se ka fanga dicogo fine-tune application kelen-kelen bɛɛ kama. Sitimɛ minnu tɛ ni jikuruw cogoya sɛgɛsɛgɛli ye, olu ka teli ka gɛlɛya sɔrɔ walasa ka baarakɛcogo sabatilen mara solda cogoya wɛrɛw kɔnɔ.
Filanan, jaabiw tigitigi ka kan ka jateminɛ. -tiɲɛniba ka jaabiw dicogo bɛ se ka u yɛrɛma ka elekitorode sɛgɛn walima fɛnw caman ɲɔgɔnna musaka bɔ, o bɛ dɔ bɔ bololabaarakɛlaw ka paramɛtiriw ladilanni mago la ani ka fɛn dilanni nafa bonya.
A laban na, kunnafonidilanw ɲɛnabɔli seko kɛra nafama ye ka taa a fɛ. Mobili jogoɲumanya siratigɛw bɛ ɲini sisan ka welda paramɛtɛrɛw nɔfɛtaama dafalen kɛ. Sitimɛ minnu bɛ sisan kurukuruw, welda waati, ani baarakɛcogo kunnafoniw sɛbɛn, olu b’a to injiniyɛriw bɛ se ka fɛn dilanni tariku lajɛ ani ka jaabi teliya la jogoɲiniw walima foroko koɲɛw la.
Tiɲɛ-Diɲɛ ko kɛlenw sɛgɛsɛgɛli: Ka ɲɛtaa sɔrɔ fɔlɔ-Tɛmɛsira sɔrɔta ka bɔ 97% na ka se 99,9% ma
Mobili farikolo sɔgɔli porozɛ dɔ la, a dilannikɛla tun y’a jigi da AC soldacogo kɔrɔw kan a daminɛ na. Waati tɛmɛnen kɔfɛ, ɛntɛrinɛti injiniyɛriw y’a kɔlɔsi ko fɛnw bɛ wuli tuma caman na, ka elekitorodew ka ɲɛnamaya surunya, ani ko minnu bɛ to ka baara kɛ kokura. Taabolo jateminɛ caman kɛlen kɔfɛ, o yɔrɔ in jiginna ka kɛ MFDC welding systems ye, ka waveform porogaramu ɲumanw waleya.
O jaabiw kɛra nafama ye:
Welding Performance Sani ani a kɔfɛ Upgrade
| Metiriki | Sani ka Upgrade (Yɛlɛma) Kɛ | Upgrade kɔfɛ |
|---|---|---|
| Fɔlɔ-Tɛmɛ sɔrɔ | 97.2% | 99.9% |
| Spatter Rate (Sɔgɔsɔgɔninjɛ hakɛ). | 28% | 8% |
| Elektɔri Ɲɛnamaya | 2500 ye welda ye | 4500 ye welda ye |
| Grinding Waati | Basi daminɛ | A dɔgɔyara ni 40% ye . |
Nin ko in b’a jira ko waveform optimization bɛ wariko nafa sumanlenw lase. Ni dɔ bɔra jibɔ la ani ka baara seginni dɔgɔya, fɛn dilanni nafa yiriwara k’a sɔrɔ baara musakaw dɔgɔyara kosɛbɛ.
Kuncɛli
Ni mobili dilanni bɛ ka taa a fɛ ka taa ɲɛ ka taa fɛnw na minnu fanga ka bon, ka taa fɛn caman-layer structures, ani automatique production systems, welding jogoɲini jiginna ka bɔ bolola ladilanni na ka taa data-driven precision engineering. MFDC spot welding fɛɛrɛ, n’o farala ɲɔgɔn kan ni multi-stage waveform control ani closed-loop feedback ye, o bɛ sabatili hakɛ di min ka kan bi mobili dilanni na.
Sɔgɔsɔgɔninjɛ ni welda barikamaw tɛ fiɲɛ ye min tɛ se ka bali. A ka c’a la, u bɛ bɔ funteni doncogo kɔlɔsilibaliya la sanni ka kɛ fɛnw dantigɛli ye min tɛ se ka bali. Ni welding systems bɛ se ka fanga dicogo ɲɛnabɔ ni tigitigi ye ani ka ladilan ni fanga ye ka kɛɲɛ ni baarakɛcogo caman ye, welda jogo bɛ kɛ fɛn ye min bɛ se ka fɔ ka ɲɛ ani min bɛ se ka segin a kan.
Dilanbagaw fɛ minnu bɛ fɛn dilanni sira kura boloda walima ka sigida kɔrɔw sɛmɛntiya, ka wari bila MFDC fɛɛrɛbɔ la ni jikuruw kɔlɔsili ye min ka bon, o tɛ fɛɛrɛko yiriwali dɔrɔn ye. A bɛ fɛɛrɛ kuntaalajan dɔ jira walasa ka weldaw ka baarakɛcogo ɲɛ, ka baara musakaw dɔgɔya, ani ka ɲɔgɔndan sabati fɛn dilanni sigida la min bɛ ka caya ka taa a fɛ.
