Kakaretso e qaqileng ea Lihlooho tsa ho Welding tsa Laser tse Fofang

Kakaretso e qaqileng eaLihlooho tsa ho tjheseletsa tsa Laser tse fofang

E akaretsa mabitso a likarolo, litlhaloso, melao-motheo, liparamente tsa moralo le lipalo tsa foromo, 'me e sebetsa hoho tjheseletsa ka lebelo le phahameng(jwalo ka ditsamaiso tsa galvanometer) kapa ditshebediso tsa ho tjheseletsa tse hole.

1. Sebopeho le Tlhaloso ea Lihlooho tsa ho Welding tsa Laser tse Fofang

Ho tjheseletsa ka lebelo le phahameng (ho tjheseletsa ka laser) ho etsa hore ho shebane ka matla le galvanometer e bonts'ang mahlaseli a laser, 'me ho loketse libaka tse kholo leho tjheseletsa ka lebelo le phahamengLikarolo tsa eona tsa mantlha ke tse latelang:

1. Mojule oa ho kopanya mahlakore a beam

Collimator

Mosebetsi: Fetola tlhahiso ea laser e fapaneng (NA=0.1~0.22) ke faeba ea optical hore e be lehlaseli le bapileng.

Dintlha tsa bohlokwa: Bolelele ba focal fcoll, bophara ba collimated beam Dcoll.

Mokgwa wa ho Lekanya:

1.2 Sistimi ea ho Sekena ea Galvanometer

Liipone tsa Galvo tsa X/Y-axis

Mosebetsi: Fetola tsela eo lebone le bonesang ka yona ka diipone tse potolohang ka lebelo le phahameng ho fihlella ho skena ha sefofane ka mahlakore a mabedi.

Diparamente tsa bohlokwa: Lebelo la ho skena (hangata ≥10m/s), ho nepahala ha ho beha sebaka hape (<±5μrad), boholo ba seipone (bo hloka ho koahela bophara ba lehlasedi Dcoll).

Enjene ea Galvanometer: Enjene ea Servo kapa enjene ea galvanometer e nang le nako ea karabelo ea <1ms.

1.3 Mojule oa ho Tsepamisa Maikutlo o Fetohang (Lense ea F-Theta kapa Lense ea Galvanometer + Lense e Foremeng)

Lense ea F-Theta

Mosebetsi: Fetola angle ea ho fapoha ha galvanometer hore e be ho falla ho otlolohileng sefofaneng ho boloka botsitso ba ho tsepamisa maikutlo.

Liforomo tsa bohlokoa:

2. Molao-motheo oa Mosebetsi

Tsela ea mahlasedi: Laser → Collimator → X galvanometer → Y galvanometer → Lense ea F-Theta → Bokaholimo ba mosebetsi.

Ho tsepamisa maikutlo ka matla:

Ha angle ea ho fapoha ha galvanometer e le θ, boemo ba ho tsepamisa maikutlo (x, y) bo fetoloa ke lense ea F-Theta e le:

3. Liparamente tsa Moralo oa Bohlokoa le Liforomo

3.1 Palo ea Boholo ba Libaka

Bophara ba sebaka se tsepamisitsoeng d (moeli oa phapanyetso):

3.2 Sebaka sa ho Sekena le Angle ea Galvanometer

Sebaka se phahameng ka ho fetisisa sa ho skena L:

3.3 Lebelo la ho tjheseletsa le ho Potlakisa

Lebelo la mola v

3.4 Botebo ba Tsepamiso (DOF)

3.5 Boima ba Matla le Kenyelletso ea Matla

Sekhahla sa matla I:

Botebo ba matla E (ho tjheseletsa ha pulse):

4. Moralo o Fosahetseng le oa Ntlafatso

4.1 Tokiso ea Lense ea F-Theta e Fosahetseng

Ho sotha: E hloka ho kgotsofatsa r∝θ, mme ho sotha ho seng mola ho lokela ho ba <0.1%.

Ho kobeha ha tšimo: Rala tšimo e bataletseng ka lihlopha tsa lilense tse ngata.

4.2 Phoso ea Kamano ea Galvanometer

Tieho ea X/Y galvanometer e lokela ho ba <1μs ho qoba matheba a elliptical.

5. Mohlala oa Ts'ebetso ea Moralo

Litlhoko tsa ho kenya: Sebaka sa ho skena L, boholo ba sebaka d, lebelo la ho tjheseletsa v. Kgetha lense ya F-Theta: Fumana fθ ho latela L=2fθtan(θmax).

Bala diparamitha tsa galvanometer: Lebelo la Angular ω=v/fθ, mme o netefatse tshebetso ya galvanometer.

Netefatsa boleng ba sebaka: Ntlafatsa diphetoho tsa sehlopha sa lense ka Zemax/OpticStudio.

6. Litlhokomelo

Taolo ea mocheso: Li-Galvanometer le lilense li hloka ho pholisoa ha metsi tlas'a matla a phahameng (joalo ka >1kW).

Tšireletso khahlanong le ho thulana: Li-Galvanometer li hloka ho brakea ka tšohanyetso ho qoba ho thulana ha mechine.

Ho Lekanya: Kamehla lekanyetsa coaxiality ea tsela ea optical (ho kheloha <0.05mm).