Sechishandiso chekugadzirisa chepamberi, laser iri kutamba basa rakakosha mumunda we welding yeindasitiri. Kunyangwe tekinoroji ye laser welding yechinyakare ichigona kudzora zvikanganiso izvi kusvika pamwero wakati, mhedzisiro yayo inowanzo ganhwa nematanho e welding akagadzika uye maitiro. Mumakore achangopfuura, kuoneka kwetekinoroji ye laser swing welding inopa mhinduro itsva yekudzora zvikanganiso zve welding. Nekuunza swing ye laser beam panguva ye welding process, tekinoroji iyi inogona kuvandudza zvakanyanya hunhu hwe dynamic ye weld pool, nekudaro ichivandudza kunaka kwe welding. Tekinoroji ye laser swing welding inonyanya kutsamira pakudzora kwakarurama kwe laser beam uye swing technology kuti iwane welding inoshanda uye yepamusoro.
Kuvandudza chitarisiko:
Munguva yemaitiro ekunamira, danda relaser rinotenderedzwa nekukurumidza uye nemazvo kuti rifukidze nzvimbo yese yekuwelda. Kana danda richifamba nenzira yeweld, rinotenderera mumhando dzakasiyana-siyana, dzakadai sedenderedzwa, mufananidzo 8 uye helix. Chen nevamwe vake vakashandisa swing laser kuwelda maalloys akasiyana ealuminium, uye zvichienzaniswa nekusave swing laser welding, chimiro cheweld chekumberi nekumashure che swing laser welding chakavandudzwa zvakanyanya. Pamusoro pezvo, transverse swing laser welding inoshandiswa kuwedzera clearance adaptive ye groove. Pane mamwe maworkpiece e conductive connection, zvakakosha kuwedzera overcurrent area, zvinodiwawo kuwedzera metallic connection surface, uye zvinodiwawo kukwevera laser welding kuti metallic connection surface ive "U".
1. (a) uye (b) nhamba dzechimiro cheweld cross section uye saizi yeweld pasi pemhando dzakasiyana dze swing; (c) Kuumbwa kwenzvimbo yepamusoro ye weld pasi pemhando dzakasiyana dze swing.
Kuvandudza kusabatana zvakanaka kwemadziro emativi:
Kukanganisika kwekusabatana kwemadziro emativi kuri nyore kuitika mukushandiswa kwe laser welding yechinyakare kwepakati nepakati, uko kunokonzerwa nekupararira kusina kuenzana kwesimba re laser mumuromo, kupisa kuri pakati pe groove kwakakura, uye kupisa kuri mumadziro emativi e groove kudiki, izvo zvisingagone kuumba musanganiswa wakanaka. Chiyero chikuru chekugadzirisa dambudziko re side wall risina kusanganiswa ndechekuwedzera kupisa kuri mumadziro emativi. Mukuita kwe laser welding, kugoverwa kwesimba kwe laser pamusoro pe workpiece kunogona kuonekwa kuburikidza ne beam swing. Kana upamhi hwe groove hukachinja, amplitude ye beam swing inogadziriswa kuti ienderane nehupamhi hwe groove, kuitira kuti igadzire kupisa kuri mumadziro emativi.
2. Mufananidzo we microscopic we weld kubva pachikamu chekutanga (L1) kusvika pachikamu chechinomwe (L7) we welding ne laser ine kana isina oscillation.
Deredza zvikanganiso zve porosity:
Kudzivirira kwe laser swing pamaburi ekuwelding kunogona kunzi kuri kuwedzera kugadzikana kwemaburi madiki uye kuwedzera kuyerera kwesimbi yemvura. Mufananidzo 3 unoratidza maitiro ekuyerera kwedziva rakanyungudutswa rinoratidzwa nezvidimbu zvetracer panguva yekuwelding. Kuzunguzika kwemwenje wechiedza kunoita kuti gomba diki rigadzire kufamba kwekutenderera kwakakwira uye nekukurumidza, izvo zvinokurudzira kuzara kwebubble uye zvine "trapping" effect pamaburi akasimba. Panguva imwe chete, kuzunguzika kwemwenje wechiedza kunowedzera nzvimbo yegomba diki uye kunoderedza mukana wekuti kusagadzikana kwaro kuite maburi.
3. (a) uye (b) nzira dzezvimedu zvinotevedzana panguva yekunamira; Nzvimbo yekuvhura keyhole: (c) hapana lezari inotenderera (d) lezari inotenderera.
Deredza zvikanganiso zvemavanga:
Kutsemuka kwemafuta (thermal crack) rudzi rwechikanganiso chinoumbwa mukuita kwewelding nekuda kwekudyidzana kwekumanikidzwa kwemukati uye zvinhu zvesimbi, izvo zvinowanzo kuwanikwa munzvimbo inobatwa nekupisa (HAZ) yekutsemuka. Kuumbwa kwezvikanganiso zvakadaro kune chekuita nekusasimba kwezvinhu pakupisa kwakanyanya, kushushikana kwewelding uye kuumbwa kwemakemikari echinhu chacho. Tekinoroji ye laser welding yechinyakare inogona kukonzera kuputika kwemafuta mukuita kwewelding, kunyanya nekuda kwezvikonzero zvinotevera: Chekutanga, nekuda kwesimba rakawanda re laser welding, zvichikonzera kupisa nekukurumidza uye kutonhora kwenzvimbo yekutsemuka, zvichikonzera kupisa kukuru uye kushushikana kwekupisa; Chechipiri, kuita kwesimbi mukuita kwewelding kunogona kutungamira mukuparadzaniswa kwezvinhu zvisina kuchena zvine poindi yakaderera yekunyunguduka, zvichigadzira brittle phase uye kuwedzera kunzwa kwezvikanganiso. Chekupedzisira, kukurumidza kuoma kwezvinhu kunogona kutungamira kune kusawirirana kwe microstructure, uye nzira yekukura kwemakristaro e columnar inobva padziva rakanyungudutswa kuenda pakati, sezvakaratidzwa muMufananidzo 4. Muchiitiko ichi, kunzwa kwekutsemuka kunowedzera zvakanyanya.
4. Nzira yekusimbisa kusungirirwa nelaser (a) kusungirirwa nelaser yakajairika (b) kusungirirwa nelaser inotenderera.
Tekinoroji yekubatanidza laser inotenderera inogona kuderedza kana kubvisa kuitika kwekuputika kwekupisa nekuunza danda re laser rinotenderera. Munguva yekushongedza laser inotenderera, kutenderera kwedanda re laser kunogona kukurudzira kuyerera kwesimbi mudziva rakanyungudutswa, nokudaro zvichivandudza kufanana kwechimiro che microstructure, uye tsanga inokura coaxial pakati pedziva rakanyungudutswa, sezvakaratidzwa muMufananidzo 5. Tsanga idzi dze coaxial dzinoshanda sechidziviriro chekudzivirira kupararira kwetsekwe uye dzinoshanda sechikamu chekudzivirira kupisa kudzivirira kupararira kwetsekwe. Panguva imwe chete, laser inotenderera inobatsira kuderedza brittle phase formation nekuda kwekuparadzaniswa kwezvikamu, zvichideredza njodzi yekutsekwesa kwekupisa.
5. (A) hunhu hwekuvaka zvidimbu zvesimbi zve laser welding (B) hunhu hwekuvaka zvidimbu zvesimbi zve laser swing welds (CCW).
Kana tichienzanisa ne laser self-fusion welding, swing laser welding tekinoroji inozivikanwa senzira inoshanda yekuderedza maitiro ekuboorwa kwemadziro uye kugadzirisa zvikanganiso zvakaita sekusabatana kwemadziro emativi. Nekuda kwemhedzisiro yedanda padziva rakanyungudutswa, ine zvakanakira zvakakosha mukuvandudza kukwana kwegap, kuvandudza kufanana kwe microstructure uye kunatsa grain. Kushandisa tekinoroji ye laser swing welding kunogona kuita kuti laser welding ishandiswe zvakanyanya, uye laser efficiency precision welding inogona kuwanikwa kune workpieces hombe uye welds dzakafara, kureva kuti, maitiro ekutanga uye assembly akarurama echigadzirwa zvinorerutswa.
Nguva yekutumira: Kukadzi-21-2025
