KR970033385A - Laser welding method using quad focus - Google Patents

Laser welding method using quad focus Download PDF

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Publication number
KR970033385A
KR970033385A KR1019950058530A KR19950058530A KR970033385A KR 970033385 A KR970033385 A KR 970033385A KR 1019950058530 A KR1019950058530 A KR 1019950058530A KR 19950058530 A KR19950058530 A KR 19950058530A KR 970033385 A KR970033385 A KR 970033385A
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KR
South Korea
Prior art keywords
plate
focus
tolerance
welding
laser beam
Prior art date
Application number
KR1019950058530A
Other languages
Korean (ko)
Other versions
KR100210601B1 (en
Inventor
김경익
Original Assignee
이우복
사단법인 고등기술연구원 연구조합
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 이우복, 사단법인 고등기술연구원 연구조합 filed Critical 이우복
Priority to KR1019950058530A priority Critical patent/KR100210601B1/en
Publication of KR970033385A publication Critical patent/KR970033385A/en
Application granted granted Critical
Publication of KR100210601B1 publication Critical patent/KR100210601B1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/073—Shaping the laser spot
    • B23K26/0732—Shaping the laser spot into a rectangular shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/0426—Fixtures for other work
    • B23K37/0435—Clamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/18—Sheet panels

Abstract

4각 포커스를 갖는 레이져 빔을 이용하여 판재의 절단면의 상태에 무관하게 안정적으로 용접할 수 있도록 하기 위해 용접할 판재를 포커스 지름 이하의 정밀도를 가지도록 절단하는 단계와, 상기 절단된 판재를 고정하기 위해 절단된 판재의 최대 허용오차가 포커스 지름 이하가 되도록 클램핑 하는 단계와, 상기 클램핑된 판재를 용접하기 위해 용접기로부터 4각의 레이져빔을 발생하는 단계와, 상기 4각의 레이져빔을 이용하여 판재에 나타나는 최대 갭의 허용오차를 증가시켜서 용접하는 단계를 포함하는 4각 포커스를 이용한 레이져 용접방법을 이용하여, 절단면의 상태와 지그 및 클램핑의 오차가 크게 되어도 용접빔의 허용오차가 증가하므로 용접 프로세스를 단순화시킬 수 있다.Cutting the plate to be welded with a precision less than or equal to a focus diameter in order to stably weld regardless of the state of the cut surface of the plate using a laser beam having a quadrangular focus; and fixing the cut plate Clamping such that the maximum tolerance of the cut sheet is less than or equal to the focal diameter; generating a four-angle laser beam from a welder to weld the clamped plate; and using the four-angle laser beam. By using the laser welding method using the square focus, which includes increasing the tolerance of the maximum gap appearing in the welding process, the tolerance of the welding beam increases even if the state of the cutting surface and the jig and clamping errors become large. Can be simplified.

Description

4각 포커스를 이용한 레이져 용접방법Laser welding method using quad focus

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

제1도는 일반적인 판재를 용접할 때의 레이져 용접조건을 설명하기 위한 도면.1 is a view for explaining the laser welding conditions when welding a general plate.

제2도는 용접된 판재에서 갭이 형성된 상태를 나타내기 위한 도면.2 is a view for showing a state in which a gap formed in the welded sheet material.

제3도는 종래의 원형 포커스 레이져를 이용한 용접상태를 나타낸 도면.3 is a view showing a welding state using a conventional circular focus laser.

제4도는 본 발명의 사각 포커스 레이져를 이용한 용접상태를 나타낸 도면.4 is a view showing a welding state using the square focus laser of the present invention.

제5도는 종래의 원형 포커스 레이져와, 본 발명의 사각 포커스 레이져를 이용한 용접상태를 비교하기 위한 도면.5 is a view for comparing a welding state using a conventional circular focus laser and the square focus laser of the present invention.

Claims (3)

용접할 판재를 포커스 지름 이하의 정밀도를 가지도록 절단하는 단계와, 상기 절단된 판재를 고정하기 위해 절단된 판재의 최대 허용 오차가 포커스 지름 이하가 되도록 클램핑 하는 단계와, 상기 클램핑된 판재를 용접하기 위해 용접기로부터 4각의 레이져빔을 발생하는 단계와, 상기 4각의 레이져 빔을 이용하여 판재에 나타나는 최대 갭의 허용오차를 증가시켜서 용접하는 단계를 포함하는 4각 포커스를 이용한 레이져 용접방법.Cutting the plate to be welded to have a precision of less than or equal to the focus diameter; clamping the plate to be clamped so that the maximum tolerance of the cut sheet is less than or equal to the focus diameter to fix the cut plate; and welding the clamped plate And generating a four-angle laser beam from the welder, and welding by increasing the tolerance of the maximum gap appearing on the plate by using the four-angle laser beam. 제1항에 있어서, 상기 레이져 용접시 증가되는 최대갭의 허용오차는 사각 포커스 긴 변의 길이(ℓ1)에서 원형포커스의 지름 ℓc 만큼 감산한 값(ℓ1-ℓc) 만큼 증가하는 것을 특징으로 하는 레이져 용접방법.The laser welding according to claim 1, wherein the tolerance of the maximum gap increased during laser welding is increased by a value L1-Lc subtracted by the diameter Lc of the circular focus from the length L1 of the square focus long side. Way. 제1항에 있어서, 상기 절단된 판재의 최대 허용오차는 0.2mm이하인 것을 특징으로 하는 레이져 용접방법.The laser welding method according to claim 1, wherein the maximum tolerance of the cut sheet is 0.2 mm or less. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950058530A 1995-12-27 1995-12-27 Laser welding method using 4-angle focus KR100210601B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950058530A KR100210601B1 (en) 1995-12-27 1995-12-27 Laser welding method using 4-angle focus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950058530A KR100210601B1 (en) 1995-12-27 1995-12-27 Laser welding method using 4-angle focus

Publications (2)

Publication Number Publication Date
KR970033385A true KR970033385A (en) 1997-07-22
KR100210601B1 KR100210601B1 (en) 1999-07-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950058530A KR100210601B1 (en) 1995-12-27 1995-12-27 Laser welding method using 4-angle focus

Country Status (1)

Country Link
KR (1) KR100210601B1 (en)

Also Published As

Publication number Publication date
KR100210601B1 (en) 1999-07-15

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