ʻO ka hoʻoheheʻe ʻana i ka laser a me ka welding electron beam: "ʻenehana kiʻekiʻe" no ka hana kiʻekiʻe

Ma nā kahua kiʻekiʻe e like me ka aerospace a me ka microelectronics, paʻakikī ka fusion kuʻuna kuʻuna e hoʻokō i nā koi o ka pololei a me ke komo hohonu. ʻO ka hoʻoheheʻe laser a me ka hoʻoheheʻe ʻana i ka uila e kū i waho me kā lākou mau mea maikaʻi o ka "kiʻekiʻe ikehu kiʻekiʻe, kiʻekiʻe precision, a me ka haʻahaʻa deformation."

Hoʻopaʻa laser:Hoʻohana ia i kahi kukuna laser mana kiʻekiʻe (1064nm ka lōʻihi o ka nalu a i ʻole 10.6μm) i kālele ʻia ma ka ʻili o ka mea hana. Hiki ke piʻi ka mahana koke ma luna o 10,000 ° C, e ʻike ana i ka hoʻoheheʻe wikiwiki ʻana a me ka hui ʻana o nā metala. Hōʻike ia i nā wili liʻiliʻi a me nā ʻāpana liʻiliʻi i hoʻopili ʻia i ka wela, e kūpono ai no ka wiliwili ʻana i nā ʻāpana ʻāpana ʻiliʻili a me nā ʻāpana micro, e like me nā bracket kamera atamai a me nā ʻāpana aero-engine.

Electron Beam welding:I loko o kahi pōʻai maloʻo, hoʻolalelale ʻia ka kukuna electron a hoʻopaʻa ʻia e pahū i ka mea hana. Me ka nui o ka ikehu e like me 10^6-10^8 W/cm², hiki iā ia ke hoʻokō i ka hoʻoheheʻe ʻana i ka hohonu me ka pae hiʻona a hiki i 10:1. He kūpono ia no nā ʻāpana kikoʻī o ka pā mānoanoa e like me nā ʻāpana reactor nuklea a me nā mīkini nui. Eia nō naʻe, loaʻa iā ia nā kumukūʻai kiʻekiʻe o ka lako a koi ʻia i kahi kaiapuni maloʻo, e hopena i nā hiʻohiʻona noi liʻiliʻi.

Nā Mea Hana a me nā ʻano Laser

ʻO kahi ʻōnaehana hoʻoheheʻe laser maʻamau he ʻekolu mau mea nui:

Laser Generator: Hoʻololi i ka ikehu uila i kahi kukuna laser coherent.

Pūnaehana Transmission Optical: alakaʻi a hoʻopololei i ke kukuna (e laʻa, fiber optics, aniani hoʻohālike).

Ke kahua hana: Hoʻohui i nā mea paʻa, nā mana o ka neʻe (robots/linear pae), a me ka hāʻawi kinoea pale.

Nā ʻāpana kaʻina hana koʻikoʻi a me nā alakaʻi hana

Hoʻoholo pololei ka mana o ka palena i ka maikaʻi o ka weld—hiki i nā ʻoki liʻiliʻi ke kumu i nā hemahema e like me ka porosity a i ʻole nā māwae:

(1) Hoʻomākaukau mua o ka welding

Hoʻomaʻemaʻe Mea: Wehe i ka ʻaila, nā unahi oxide, a i ʻole nā uhi me ka hoʻohana ʻana i ka ethanol a i ʻole sandblasting. No nā mea kiʻekiʻe-reflectivity (Al, Cu), hoʻomaʻamaʻa mua i nā ʻili e hōʻemi i ka noʻonoʻo laser.

Ke Kūlana Kūlana: E hoʻohana i ka defocus maikaʻi ʻole (ka nānā ʻana ma lalo o ka ʻili mea hana) no ke komo hohonu; defocus maikaʻi (ka nānā ʻana ma luna) no nā lau lahilahi e pale aku i ke ahi.

Nā noi ʻoihana a me nā haʻawina hihia

ʻO ka wiliwili ʻana o Laser e hoʻokau i ka hana hou ma nā ʻāpana:

(1) Kūkulu & ʻOihana Kaumaha

ʻO nā hale kila: ʻelua poʻo laser-arc hybrid welding system weld 20mm + T-beams ma 1.2m/min, e hōʻemi ana i ka deformation e 50%.

Ka hana moku: ʻO nā ʻōnaehana alakaʻi lopako me nā kaʻa kaʻa 7th-axis weld i nā pā hull 115mm-mānoanoa ma nā ala hoʻokahi, e hoʻonā i ka pilikia "hoʻokahi ʻaoʻao, hana ʻaoʻao pālua".

(2) Hana Kaʻa

ʻO ke kuʻi pololei ʻana o nā ʻāpana hoʻoili me ka hoʻohana ʻana i ka "keyhole stability control technology" no ka hoʻokō ʻana i nā welds pōʻai kīnā ʻole.

ʻO ka hoʻoheheʻe ʻia ʻana o ka laser tailor-weld o nā paneli kino kaʻa e hōʻemi i ka helu ʻāpana ma 30% a me ke kaumaha ma 15%.

(3) 'Enehana Ki'eki'e & Aerospace

Nūkini Nukelea: ʻO ka hoʻoheheʻe ʻia ʻana o ka laser fiber o Ni-28W-6Cr alloy (no 850°C molten paʻakai reactors) me ka hoʻopaʻa ʻana i ka māwae ma o ka hoʻohālikelike ʻana.

Aerospace: Ke kuʻi ʻana o nā ʻāpana ʻenekini huila titanium me ka liʻiliʻi o ka wela wela (HAZ) e mālama i ka ikaika waiwai.