Laser Welding uye Electron Beam Welding: "High-Tech" Yepamusoro-End Manufacturing.

Muminda yepamusoro-soro senge aerospace uye microelectronics, chinyakare fusion welding yakaoma kuzadzisa zvinodiwa nekunyatso uye kupinza kwakadzika. Laser welding uye electron beam welding zvinomira pachena nezvakanakira "high energy density, high precision, uye low deformation."

Laser Welding:Inoshandisa yakakwirira-simba laser danda (wavelength 1064nm kana 10.6μm) yakanangana neiyo workpiece pamusoro. Tembiricha yepakarepo inogona kusvika pamusoro pe10,000 ° C, ikaona kukurumidza kunyungudika uye kubatana kwesimbi. Iyo inoratidzira yakamanikana welds uye diki-inopisa-inokanganisa nzvimbo, ichiita kuti ive yakakodzera kune yakatetepa-yakakomberedzwa zvinhu uye zvidiki-zvikamu, senge smartphone kamera mabhureki uye aero-injini blades.

Electron Beam Welding:Munzvimbo yevacuum, danda re electron rinokwidziridzwa uye rinotariswa kubhomba workpiece. Nehuwandu hwesimba hwakakwira se 10 ^ 6-10 ^ 8 W/cm², inogona kuwana yakadzika yekupinda welding ine aspect ratio inosvika 10:1. Yakakodzera kune gobvu-walled precision zvikamu zvakaita senyukireya reactor zvikamu uye magiya mahombe. Nekudaro, ine mitengo yakakwira yemidziyo uye inoda nzvimbo yevacuum, zvichikonzera mashoma mashoma ekushandisa.

Equipment Composition & Laser Types

Iyo yakajairwa laser welding system inosanganisira matatu epakati zvinhu:

Laser jenareta: Inoshandura simba remagetsi kuita rakabatana laser danda.

Optical Transmission System: Inotungamira uye inotarisa danda (semuenzaniso, fiber optics, inopenya magirazi).

Nzvimbo yekushanda: Inobatanidza zvigadziriso, zvidzoreso zvekufamba (marobhoti/matanho emutsetse), uye inodzivirira gasi kuendesa.

Critical Process Parameters & Operational Guidelines

Parameter control inotarisisa weld mhando - kunyangwe kutsauka kudiki kunogona kukonzera kuremara senge porosity kana kutsemuka:

(1) Pre-Welding Kugadzirira

Kucheneswa Kwezvinhu: Bvisa mafuta, zvikero zveoxide, kana mapeji uchishandisa ethanol kana sandblasting. Kune yakakwirira-reflectivity zvinhu (Al, Cu), pre-mabatidza nzvimbo kuderedza laser reflection.

Focal Positioning: Shandisa negative defocus (tarisa pazasi peworkpiece surface) yekupinda kwakadzika; positive defocus (kutarisisa pamusoro) kune mapepa matete kudzivirira kupisa-kuburikidza.

Indasitiri Applications & Nyaya Dzidzo

Laser welding's versatility inotyaira hunyanzvi muzvikamu:

(1) Kuvaka & Inorema Indasitiri

Simbi Zvimiro: Kaviri-musoro laser-arc hybrid welding masisitimu weld 20mm+ T-matanda pa1.2m/min, ichideredza deformation ne50%.

Kuvaka Zvikepe: Robhoti-inotungamirwa masisitimu ane 7th-axis rails weld 115mm-makobvu hull mahwendefa mune imwe chete kupfuura, kugadzirisa iyo "single-side welding, kaviri-side kuumba" dambudziko.

(2) Kugadzirwa Kwemotokari

Precision welding yezvinotapurirana zvinhu uchishandisa "keyhole kugadzikana kudzora tekinoroji" kuwana hurema-isina denderedzwa welds.

Laser tailor-welding yemapanera emuviri wemotokari inoderedza chikamu chechikamu ne30% uye uremu ne15%.

(3) Advanced Energy & Aerospace

Nuclear Energy: Fiber laser welding yeNi-28W-6Cr alloy (ye850°C yakanyungudutswa munyu reactor) ine crack kudzvanya kuburikidza neparameter optimization.

Aerospace: Welding yetitanium alloy engine blades ine shoma-inokanganiswa nekupisa nzvimbo (HAZ) kuchengetedza simba rezvinhu.