Tsanangudzo yeSplash Defect: Splash in welding inoreva madonhwe esimbi akanyunguduka anoburitswa kubva mudziva rakanyungudutswa panguva yewelding. Aya madonhwe anogona kuwira panzvimbo yakatenderedza yekushanda, zvichikonzera hutsinye uye kusaenzana pamusoro, uye zvakare zvinogona kukonzera kurasikirwa kwemhando yedziva yakanyungudutswa, zvichikonzera mazino, nzvimbo dzinoputika, uye humwe hurema pane weld surface inokanganisa ma mechanic properties ye weld. .
Splash in welding (Splash in welding) zvinoreva madonhwe esimbi akanyunguduka anoburitswa padziva rakanyungudutswa panguva yekunyungudutswa. Aya madonhwe anogona kuwira panzvimbo yakatenderedza yekushanda, zvichikonzera hutsinye uye kusaenzana pamusoro, uye zvakare zvinogona kukonzera kurasikirwa kwemhando yedziva yakanyungudutswa, zvichikonzera mazino, nzvimbo dzinoputika, uye humwe hurema pane weld surface inokanganisa ma mechanic properties ye weld. .
Splash classification:
Diki splashes: Solidification madonhwe aripo pamucheto we weld seam uye pamusoro pechinhu, kunyanya kukanganisa kutaridzika uye kusave nemhedzisiro pakuita; Kazhinji, muganho wekusiyanisa ndewekuti droplet iri pasi pe20% ye weld seam fusion wide;
Large splatter: Pane kurasikirwa kwemhando, kunoratidzwa semazino, nzvimbo dzinoputika, undercuts, nezvimwe pamusoro peiyoweld musono, iyo inogona kutungamirira kune kusagadzikana kusagadzikana uye kushungurudza, kukanganisa kushanda kwe weld seam. Chinonyanya kutariswa pamhando idzi dzezvikanganiso.
Splash chiitiko process:
Splash inoratidzwa sejekiseni resimbi yakanyungudutswa mudziva rakanyungudutswa munzira inokwana perpendicular kune welding fluid pamusoro nekuda kwekukwira kwepamusoro. Izvi zvinogona kuoneka zvakajeka mumufananidzo uri pazasi, apo iyo mbiru yemvura inosimuka kubva mukunyunguduka inonyungudika uye inoora kuita madonhwe, ichigadzira splashes.
Splash chiitiko chiitiko
Laser weldinginokamurwa kuita thermal conductivity uye yakadzika kupinda welding.
Thermal conductivity welding inenge isina kuitika kwe spatter: Thermal conductivity welding inonyanya kusanganisa kutamisa kupisa kubva pamusoro pezvinhu kusvika mukati, pamwe pasina spatter inogadzirwa panguva yekuita. Iyo nzira haisanganisi yakakomba simbi evaporation kana yemuviri metallurgical reactions.
Yakadzika yekupinda welding ndiyo mamiriro makuru apo kupfapfaidza kunoitika: Yakadzika yekupinda welding inosanganisira laser inosvika yakananga mukati mechinhu, kuendesa kupisa kune izvo zvinhu kuburikidza nemakiyi, uye maitiro ekuita akanyanya, zvichiita kuti ive iyo huru mamiriro apo kupuruzira kunoitika.
Sezvinoratidzwa mumufananidzo uri pamusoro apa, dzimwe nyanzvi dzinoshandisa mafoto ekumhanya-mhanya akasanganiswa negirazi rinopenya rakanyanya kudziya kuti vatarise mafambiro egomba rekiyi panguva yekupisa laser. Inogona kuwanikwa kuti laser inorova kumadziro emberi kwegomba rekiyi, ichisundidzira mvura kuti iyerere ichidzika, ichipfuura negomba rekiyi uye ichisvika kumuswe wedziva rakanyungudutswa. Nzvimbo iyo laser inogamuchirwa mukati mekiyi hole haina kugadzikwa, uye iyo laser iri muFresnel absorption state mukati mekiyi hole. Muchokwadi, inzvimbo yekudzokororwa kwakawanda uye kunyura, kuchengetedza kuvepo kwemvura yedziva yakanyungudutswa. Nzvimbo yelaser refraction panguva yega yega inoshanduka nekona yekiyi madziro, zvichiita kuti kiyi ive munzvimbo inomonyoroka inofamba. Iyo laser irradiation chinzvimbo inonyunguduka, inoputika, inoiswa pasi pekumanikidzwa, uye kukanganiswa, saka iyo peristaltic vibration inoenda kumberi.
Kuenzanisa kwataurwa pamusoro kunoshandisa high-tembiricha transparent girazi, izvo chaizvoizvo yakaenzana nemuchinjikwa-sectional maonero edziva rakanyungudutswa. Mushure mezvose, kuyerera kwechidziva chakanyungudutswa kwakasiyana nemamiriro ezvinhu chaiwo. Nokudaro, dzimwe nyanzvi dzakashandisa teknolojia yekukurumidza kuomesa nechando. Munguva yewelding process, dziva rakanyungudutswa rinokurumidza kuomeswa nechando kuti riwane ipapo ipapo mukati megomba rekiyi. Zvinogona kuoneka zvakajeka kuti laser iri kurova kumberi kwemadziro ekiyi, ichigadzira nhanho. Iyo laser inoita pane iyi nhanho groove, ichisunda dziva rakanyungudutswa kuti riyerere richidzika, richizadza gomba rekiyi panguva yekufamba kwelaser kuenda mberi, uye nekudaro kuwana dhiyabhorosi yekuyerera kwedhiyagiramu yekuyerera mukati megomba rekiyi redziva chairo rakanyungudutswa. Sezvinoratidzwa mumufananidzo wekurudyi, iyo simbi inodzoreredza kumanikidza inogadzirwa nelaser ablation yemvura yesimbi inotyaira dziva rakanyungudutswa kuti ridarike kumadziro ekumberi. Gomba rekiyi rinoenda kumuswe wedziva rakanyungudutswa, richikwira richikwira sechitubu kubva kumashure uye richikanganisa pamusoro pedziva rakanyungudutswa remuswe. Panguva imwe cheteyo, nekuda kwekunetsana kwepamusoro (kudzika kwetembiricha yekutsikirira kwepasi, kukonzeresa kukuru), simbi yemvura iri mudziva rakanyungudutswa yemuswe inodhonzwa nekudhonzwa kwepamusoro kuti iende kumucheto kwedziva rakanyungudutswa, ichiramba ichiomesa. . Iyo simbi yemvura inogona kusimbiswa mune ramangwana inotenderera ichidzokera kumuswe wekiyi, zvichingodaro.
Schematic diagram ye laser keyhole yakadzika kupinza welding: A: Welding direction; B: Laser danda; C: Keyhole; D: Metal mhute, plasma; E: Gasi rinodzivirira; F: Keyhole pamberi pemadziro (pre melting grinding); G: Horizontal kuyerera kwezvinhu zvakanyungudutswa kuburikidza nekiyi nzira; H: Melt pool solidification interface; Ini: Nzira inoyerera ichidzika yedziva rakanyungudutswa.
Pfupiso:
Iyo yekudyidzana maitiro pakati pelaser uye zvinhu: Iyo laser inoita pamusoro pechinhu, ichigadzira yakanyanya ablation. Izvo zvinhu zvinotanga kupiswa, kunyungudutswa, uye kubuda. Munguva yekunyungudutsa kwakanyanya, mhute yesimbi inokwira ichienda kumusoro kuti dziva rakanyungudutswa ridzikire pasi, zvichikonzera buri rekiyi. Iyo laser inopinda mugomba rekiyi uye inopinda akawanda emission uye absorption maitiro, zvichikonzera kuenderera kuripo kwesimbi vapor inochengetedza kiyi hole; Iyo laser inonyanya kuita pamadziro ekumberi kwegomba rekiyi, uye evaporation inowanzoitika pamadziro epamberi pegomba rekiyi. Recoil pressure inosunda simbi yemvura kubva kumadziro emberi kwegomba rekiyi kuti ifambe ichipoterera buri rekiyi ichienda kumuswe wedziva rakanyungudutswa. Mvura inofamba nekumhanya kukuru yakatenderedza gomba rekiyi inokanganisa dziva rakanyungudutswa kumusoro, richigadzira masaisai akasimudzwa. Zvadaro, ichisundwa nekumanikidzana kwepamusoro, inofamba ichienda kumucheto uye inosimba mukutenderera kwakadaro. Splash inonyanya kuitika kumucheto kwegomba rekiyi, uye simbi yemvura iri pamadziro epamberi ichakwira-inomhanya ichipfuura negomba rekiyi uye inobata chinzvimbo cheshure remadziro akanyungudutswa dziva.
Nguva yekutumira: Jun-19-2024
