Laser CW na laser QCW na ịgbado ọkụ

Àgwà nkesa ike

Otu ihe pụrụ iche nke laser CW bụ nkesa ike Gaussian ha, ebe nkesa ike nke akụkụ obe nke laser na-ebelata site na etiti gaa n'ihu na usoro nkesa Gaussian (nkesa nkịtị). Njirimara nkesa a na-enye laser CW ohere inweta nkenke nlebara anya dị elu na arụmọrụ nhazi, ọkachasị na ngwa chọrọ ntinye ike siri ike.

Ihe osise nkesa ike laser CW

Uru nke Ịgbado Ọkụ Laser Na-aga n'ihu (CW)

Echiche Microstructural

Inyocha obere nhazi nke ígwè na-egosi uru dị iche iche nke ịgbado ọkụ laser Continuous Wave (CW) karịa ịgbado ọkụ pulse Quasi-Continuous Wave (QCW). Ịgbado ọkụ pulse QCW, nke oke ugboro ole ya na-egbochi, nke na-adịkarị ihe dị ka 500Hz, na-eche mgbanwe n'etiti ọnụego mgbada na omimi ịbanye. Oke ọsọ mgbada na-ebute omimi zuru oke, ebe oke ọsọ mgbada na-egbochi ọsọ ịgbado ọkụ, na-ebelata arụmọrụ. N'ụzọ dị iche, ịgbado ọkụ laser CW, site na nhọrọ nke dayameta isi laser kwesịrị ekwesị na isi ịgbado ọkụ, na-enweta ịgbado ọkụ dị irè ma na-aga n'ihu. Usoro a na-egosi na ọ bụ ihe a pụrụ ịtụkwasị obi karịsịa na ngwa ndị chọrọ iguzosi ike n'ezi ihe mkpuchi dị elu.

Ntụle Mmetụta Okpomọkụ

Site n'echiche nke mmetụta okpomọkụ, njikọta laser QCW pulse na-enwe nsogbu nke njikọta, nke na-eduga na ikpo ọkụ ugboro ugboro nke njikọta weld. Nke a nwere ike iweta enweghị nkwekọrịta n'etiti obere nhazi nke ígwè ahụ na ihe nne na nna ya, gụnyere mgbanwe na nha mwepụ na ọnụego oyi, si otú a na-amụba ohere nke mgbawa. N'aka nke ọzọ, njikọta laser CW na-ezere nsogbu a site n'inye usoro ikpo ọkụ yiri nke ahụ na nke na-aga n'ihu.

Mfe nke Mgbanwe

Maka ọrụ na mgbanwe, ịgbado ọkụ laser QCW chọrọ nhazi nke ọma nke ọtụtụ paramita, gụnyere ugboro ugboro ugboro ugboro, ike kachasị elu, obosara mkpali, okirikiri ọrụ, na ihe ndị ọzọ. Ịgbado ọkụ laser CW na-eme ka usoro mgbanwe dị mfe, na-elekwasị anya karịsịa na ụdị ebili mmiri, ọsọ, ike, na oke nkwụsị, na-eme ka nsogbu ọrụ dịkwuo mfe.

Ọganihu Teknụzụ na CW Laser Welding

Ọ bụ ezie na a maara ịgbado ọkụ laser QCW maka ike dị elu ya na obere ntinye okpomọkụ, ọ bara uru maka ihe ndị na-emetụta okpomọkụ na ihe ndị dị gịrịgịrị nke ukwuu, ọganihu na teknụzụ ịgbado ọkụ laser CW, karịsịa maka ngwa ike dị elu (karịsịa karịa watts 500) na ịgbado ọkụ miri emi dabere na mmetụta oghere igodo, emeela ka oke ngwa ya na arụmọrụ ya dịkwuo elu. Ụdị laser a dabara adaba karịsịa maka ihe ndị dị arọ karịa 1mm, na-enweta oke akụkụ dị elu (karịa 8:1) n'agbanyeghị ntinye ọkụ dị elu.

Ịgbado ọkụ laser nke a na-akpọ Quasi-Continuous Wave (QCW)

Nkesa Ike Elekwasịrị Anya

QCW, nke pụtara "Quasi-Continuous Wave," na-anọchite anya teknụzụ laser ebe laser na-ewepụta ìhè n'ụzọ na-aga n'ihu, dịka egosiri na eserese a. N'adịghị ka nkesa ike otu nke laser na-aga n'ihu otu ụdị, laser QCW na-etinye ike ha nke ọma. Njirimara a na-enye laser QCW njupụta ike dị elu, na-agbanwe ka ọ bụrụ ikike ịbanye n'ime ahụ siri ike. Mmetụta metallurgical sitere na ya yiri ọdịdị "mbọ" nwere oke omimi-ruo-obosara dị mkpa, na-enye laser QCW ohere ịka mma na ngwa ndị metụtara alloys na-egosipụta ike dị elu, ihe ndị na-emetụta okpomọkụ, na obere-welding nkenke.

Mbelata Nkwụsi Ike na Mbelata Ntụnye Aka Plume

Otu n'ime uru pụtara ìhè nke ịgbado ọkụ laser QCW bụ ikike ya ibelata mmetụta nke plọm ígwè na ọnụego nnabata ihe ahụ, na-eduga na usoro kwụsiri ike karị. N'oge mmekọrịta laser na ihe, mmịpụta siri ike nwere ike ịmepụta ngwakọta nke uzuoku ígwè na plasma n'elu ọdọ mmiri agbaze, nke a na-akpọkarị plọm ígwè. Plọm a nwere ike ichebe elu ihe ahụ site na laser, na-akpata nnyefe ike na-adịghị akwụsi ike na ntụpọ dị ka spatter, ebe mgbawa, na olulu. Agbanyeghị, mwepụ nke laser QCW na-apụta n'oge (dịka ọmụmaatụ, mgbawa 5ms na-esote nkwụsịtụ 10ms) na-eme ka mkpali laser ọ bụla rute n'elu ihe ahụ na-enweghị mmetụta nke plọm ígwè, na-ebute usoro ịgbado ọkụ kwụsiri ike, nke bara uru karịsịa maka ịgbado ọkụ mpempe akwụkwọ dị gịrịgịrị.

Stable Melt Pool Dynamics

Mmetụta nke ọdọ mmiri ịgbaze, karịsịa n'ihe gbasara ike ndị na-arụ ọrụ na oghere igodo, dị oke mkpa n'ịchọpụta ụdị ịgbaze ahụ. Laser ndị na-aga n'ihu, n'ihi na ha na-adịte aka na mpaghara okpomọkụ buru ibu, na-emepụta ọdọ mmiri ịgbaze buru ibu nke jupụtara na ígwè mmiri mmiri. Nke a nwere ike ibute ntụpọ metụtara ọdọ mmiri ịgbaze buru ibu, dị ka ọdịda oghere igodo. N'ụzọ dị iche, ike lekwasịrị anya na obere oge mmekọrịta nke ịgbaze laser QCW na-etinye ọdọ mmiri ịgbaze gburugburu oghere igodo ahụ, na-ebute nkesa ike dị otu na obere ohere nke porosity, mgbawa, na mgbawa.