KR940001997A - Laser welding method - Google Patents

Laser welding method Download PDF

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KR940001997A
KR940001997A KR1019930011710A KR930011710A KR940001997A KR 940001997 A KR940001997 A KR 940001997A KR 1019930011710 A KR1019930011710 A KR 1019930011710A KR 930011710 A KR930011710 A KR 930011710A KR 940001997 A KR940001997 A KR 940001997A
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South Korea
Prior art keywords
laser welding
gas
assist gas
melting point
welding method
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KR1019930011710A
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Korean (ko)
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KR0134873B1 (en
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세츠오 마쯔바라
마사루 가나오카
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기타오카 다카시
미쓰비시덴키가부시키가이샤
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Abstract

아연도금등의 모재금속보다도 저융점물질이 피복된 재료의 레이저용접은, 맞대여서 할때와 겹쳐지는 이음부분의 경우, 아연의 증발에 의해 접합부가 폭발해서 양호한 용접이 안된다.Laser welding of a material coated with a lower melting point material than that of a base metal such as zinc plating, in the case of joints overlapping with each other in the butt joint, may cause the joint to explode due to evaporation of zinc, thereby preventing good welding.

또, 필러와이어를 용접부에 삽입하면서 시행하는 레이져용접에서도, 용융금속이 제대로 안되어 양호한 용접을 할 수 없다. 자동차 업계에의 레이저용접도입의 최대의 네크였다.In addition, even in laser welding performed while inserting the filler wire into the welding portion, molten metal is not properly formed, and thus good welding cannot be performed. It was the largest neck of laser welding introduction to the automotive industry.

어시스트가스(5)중에 아연을 산화, 연소시키기 위한 산소를 5~30%포함시킴으로써 간단하게 상기 문제의 해결이 된다.The above problem can be easily solved by including 5 to 30% of oxygen for oxidizing and burning zinc in the assist gas 5.

Description

레이저 용접방법Laser welding method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명에 관한 어시스트가스에 산소가스를 포함하는 혼합가스를 사용한 용접의 개략도,1 is a schematic diagram of welding using a mixed gas containing oxygen gas as an assist gas according to the present invention;

제4도는 본 발명에 관한 어시스트가스에 산소가스를 포함하는 혼합가스를 사용해서 필러와이어를 삽입하는 용접으로 실시한 아연도금강판의 용접예를 표시하는 도면.4 is a view showing a welding example of a galvanized steel sheet welded by inserting a filler wire using a mixed gas containing oxygen gas as an assist gas according to the present invention.

Claims (6)

적어도 하나의 재료가 모재보다도 저융점 물질로 되는 피복층을 갖는 복수의 재료에, 레이져빔을 조사하는 동시에 어시스트 가스를 분출해서 시행하는 레이져용접에 있어서, 상기 어시스트가스는 불활성가스에 산소(O2)가스를 5~30%가한 혼합가스로 한 것을 특징으로 하는 레이저 용접방법.In a laser welding in which at least one material has a coating layer of which a melting point material is lower than that of the base material, the laser beam is irradiated and the assist gas is ejected and applied, wherein the assist gas is oxygen (O 2 ). A laser welding method, characterized in that the gas is mixed with 5 to 30% added gas. 적어도 하나의 재료가 모재보다도 저융점 물질로 되는 피복층을 갖는 복수의 재료에, 필러와이어를 삽입하면서 레이저빔을 조사하는 동시에 어시스트가스를 분출해서 시행하는 레이저용접에 있어서, 상기 어시스트가스는 불활성가스에 산소(O2) 가스를 5~30%가한 혼합가스로 한 것을 특징으로 하는 레이저 용접방법.In a laser welding in which at least one material has a coating layer of which a melting point material is lower than that of the base material, irradiates a laser beam and ejects assist gas while inserting filler wires, the assist gas is applied to an inert gas. A laser welding method, comprising oxygen (O 2 ) gas mixed with 5-30%. 적어도 하나의 재료가 모재보다도 저융점 물질로 되는 피복층을 갖는 복수의 재료에, 레이져빔을 조사하는 동시에 어시스트 가스를 분출해서 시행하는 레이져용접에 있어서, 상기 어시스트가스는 불활성가스에 공기를 20%이상 가한 혼합가스로 한 것을 특징으로 하는 레이저 용접방법.In a laser welding in which a plurality of materials having a coating layer in which at least one material is made of a material having a lower melting point than a base material are irradiated with a laser beam and eject an assist gas, the assist gas is 20% or more of air in an inert gas. Laser welding method characterized in that the added mixed gas. 적어도 하나의 재료가 모재보다도 저융점 물질로 되는 피복층을 갖는 복수의 재료에, 필러와이어를 삽입하면서 레이져빔을 조사하는 동시에 어시스트가스를 분출해서 시행하는 레이저용접에 있어서, 상기 어시스트가스는 불활성가스에 산소공기를 20% 이상가한 혼합가스로 한 것을 특징으로 하는 레이저 용접방법.In laser welding in which at least one material has a coating layer of which a melting point material is lower than that of the base material, irradiates a laser beam while inserting filler wires and ejects assist gas, the assist gas is applied to an inert gas. A laser welding method comprising a mixed gas in which 20% or more of oxygen air is added. 제1항 또는 제2항에 있어서, 불활성가스는 헬륨(He), 질소(N2), 알곤(Ar), 네온(Ne)중 적어도 하나를 포함하는 것을 특징으로 하는 레이저 용접방법.The method of claim 1, wherein the inert gas comprises at least one of helium (He), nitrogen (N 2 ), argon (Ar), and neon (Ne). 제3항 또는 제4항에 있어서, 불활성가스는 헬륨(He), 질소(N2), 알곤(Ar), 네온(Ne)중 적어도 하나를 포함하는 것을 특징으로 하는 레이저 용접방법.The method of claim 3 or 4, wherein the inert gas comprises at least one of helium (He), nitrogen (N 2 ), argon (Ar), and neon (Ne). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR93011710A 1992-07-14 1993-06-25 Laser welding method KR0134873B1 (en)

Applications Claiming Priority (2)

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JP18691892 1992-07-14
JP92-186918 1992-07-14

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KR940001997A true KR940001997A (en) 1994-02-16
KR0134873B1 KR0134873B1 (en) 1998-06-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100372949B1 (en) * 2000-02-10 2003-03-08 대한민국 (경상대학교 총장) Method for cultivation of garden products

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100372949B1 (en) * 2000-02-10 2003-03-08 대한민국 (경상대학교 총장) Method for cultivation of garden products

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KR0134873B1 (en) 1998-06-15
TW201280B (en) 1993-03-01

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