JPS6182986A - Laser cutting method - Google Patents

Laser cutting method

Info

Publication number
JPS6182986A
JPS6182986A JP59202041A JP20204184A JPS6182986A JP S6182986 A JPS6182986 A JP S6182986A JP 59202041 A JP59202041 A JP 59202041A JP 20204184 A JP20204184 A JP 20204184A JP S6182986 A JPS6182986 A JP S6182986A
Authority
JP
Japan
Prior art keywords
laser beam
workpiece
worked
cutting method
laser cutting
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP59202041A
Other languages
Japanese (ja)
Inventor
Akira Usui
明 臼井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP59202041A priority Critical patent/JPS6182986A/en
Publication of JPS6182986A publication Critical patent/JPS6182986A/en
Pending legal-status Critical Current

Links

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
    • B23K26/36—Removing material
    • 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
    • B23K26/70—Auxiliary operations or equipment
    • B23K26/702—Auxiliary equipment

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Laser Beam Processing (AREA)

Abstract

PURPOSE:To prevent the burning of a non-work part by the laser beam leaked from the cutting part of the part to be worked by cutting the part to be worked with arranging a shielding object between the part to be worked of the object to be worked and a non-work part. CONSTITUTION:A laser beam 1 is irradiated on the part 5 to be worked of the object 3 to be worked being focused by a condensing lens 2. The part 5 to be worked is cut by the laser beam 1, which leaks from the cut part. The leaking laser beam 1 is reflected by a shielding object 7 and a non-work part 8 is not irradiated. The shielding object is of a plate shape and a mirror, cupper plate or Al plate is used for instance.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明はレーザビームを用いて被加工物を切断するレ
ーザ切断方法、特にその被加工部の切断部ヲ漏れたレー
ザビームによる非加工部の焼損防止に関するものでめる
。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a laser cutting method for cutting a workpiece using a laser beam, and particularly to a laser cutting method for cutting a workpiece using a laser beam. Contains information related to burnout prevention.

（従来の技術〕 第３図は従来のレーザ切断方法を説明するだめの説明図
でめり、図において（１）はレーザビーム、（２）はこ
のレーザビームの光路に配置された集光レンズ、、　（
３）はこの集光レンズの下方に配置された被加工物、（
４）はこの被加工物を下方から支持する複数の支持ビン
でるる。(Prior Art) Figure 3 is an explanatory diagram for explaining the conventional laser cutting method. In the figure, (1) is a laser beam, and (2) is a condenser lens placed in the optical path of this laser beam. ,, (
3) is the workpiece placed below this condensing lens, (
4) is a plurality of support bins that support the workpiece from below.

従来のレーザ切断方法において、レーザビーム（１）％
集光レンズ（２）、被加工物（３）及び支持ビン（４）
ハ上記のように配置され、レーザビーム（１）ヲ集光レ
ンズ（２）とともに動かすか、又は被加工物（３）全支
持ビン（４）とともに動かして被加工物（３）を切断加
工していた。In the traditional laser cutting method, the laser beam (1)%
Condenser lens (2), workpiece (3) and support bin (4)
C. The laser beam (1) is arranged as above, and the workpiece (3) is cut by moving the laser beam (1) together with the condensing lens (2) or moving the workpiece (3) together with the entire support bin (4). was.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

上記のような従来のレーザ切断方法では、被加工物（３
）の被加工部（５）の切断部（６）からレーザビームが
漏れるから、被加工部（５）の裏に切断すべきでない被
加工物（３）の一部（非加工部）が存在している場合＃
／Ｃは、漏れたレーザビームが被加工物の非加工部を焼
損するという問題点がめった。In the conventional laser cutting method as described above, the workpiece (3
) Since the laser beam leaks from the cutting part (6) of the workpiece (5), there is a part (unprocessed part) of the workpiece (3) that should not be cut behind the workpiece (5). If you have #
/C often had the problem that the leaked laser beam burned out the non-processed part of the workpiece.

この発明は、かかる問題点を解決するためになされたも
ので、被加工部の切断部からレーザビームが漏れても被
加工物の非加工部が焼損しないレーザ切断方法を得るこ
とを目的とする。This invention was made to solve such problems, and an object of the present invention is to provide a laser cutting method in which the non-processed part of the workpiece is not burned out even if the laser beam leaks from the cut part of the workpiece. .

〔問題点を解決するための手段〕[Means for solving problems]

この発明に係るレーザ切断方法は、被加工物の被加工部
と非加工物との間に遮蔽物を配置して被加工部を切断す
るものでるる。In the laser cutting method according to the present invention, a shield is placed between the processed part of the workpiece and the non-processed part, and the processed part is cut.

〔作　用〕[For production]

この発明においては、被加工物の被加工部と非加工部と
の間に遮蔽物を配置するから、被加工部の切断部を漏れ
たレーザビームは遮蔽物のところで遮蔽される。In this invention, since the shield is placed between the processed part and the unprocessed part of the workpiece, the laser beam that has leaked through the cut part of the processed part is blocked at the shield.

〔実施例〕〔Example〕

第１図はこの発明の一実施例を示す説明図でめり、（１
）〜（３）及び（５）、（６）Ｈ上記従来の技術と全く
同一のものでろる。（７）は被加工部（５）と非加工部
（８）との間に配置された板状の遮蔽物でめり、遮蔽物
（力としては、例えば鏡、銅板又はアルミニウム板が用
いられる。FIG. 1 is an explanatory diagram showing one embodiment of the present invention.
) to (3), (5), and (6)H are exactly the same as the above conventional techniques. (7) is a plate-shaped shield placed between the processed part (5) and the unprocessed part (8). .

レーザビーム（１）は集光レンズ（２）で集束きれて被
加工物（３）の被加工部（５）に照射される。被加工部
（５）はレーザビーム（１）Ｖ？−より切断され、切断
された部分からレーザビーム（１）が漏れる。漏れたレ
ーザビーム（１）ハ遮断物（７）で反射され、非加工部
（８）　Ｋは照射されないことＶＣなる。The laser beam (1) is focused by a condensing lens (2) and is irradiated onto a part to be processed (5) of a workpiece (3). The part to be processed (5) is laser beam (1) V? - The laser beam (1) leaks from the cut portion. The leaked laser beam (1) is reflected by the blocker (7), and the non-processed part (8) K is not irradiated (VC).

なお、上記実施例では板状の遮蔽物（７）を用いたが、
第２図に示すような容器（９）の取手α１の補強部材（
Ｌやを切断する場合は断面り字状の遮蔽物（７）を用い
ることにより同様の作用を期待でξる。In addition, although the plate-shaped shield (7) was used in the above example,
A reinforcing member (
When cutting L or the like, a similar effect is expected by using a shield (7) with a cross-section shaped like an ellipse.

〔発明の効果〕〔Effect of the invention〕

この発明は以上説明したとおり、被加工物の被加工部と
非加工部との間に遮蔽物を配置して被加工部を切断する
という簡単な方法により、被加工部の切断部を漏れたレ
ーザビームによる非加工部の焼損を防止するという効果
がわるうAs explained above, this invention uses a simple method of arranging a shield between the processed part and the non-processed part of the workpiece and cuts the processed part. It is less effective in preventing burnout of non-processed parts by the laser beam.

【図面の簡単な説明】[Brief explanation of drawings]

第１図はこの発明の一実施例を示す説明図、第２図はこ
の発明の他の実施例を示す説明図、第３図は従来のレー
ザ切断方法の説明図でるる。 図において、（１）げレーザビーム、（２）は集光し／
ズ、（３）１″を被加工物、（５）は被加工部、（６）
は切断部、（７）は遮蔽物、（８）は非加工部でめる。 なお、各図中同一符号は同一または相轟部分を示す。 代理人　弁理士　木　村　三　朗 丁　続　浦　正　書（方式） 昭和６０年２　月１３日FIG. 1 is an explanatory diagram showing one embodiment of the present invention, FIG. 2 is an explanatory diagram showing another embodiment of the invention, and FIG. 3 is an explanatory diagram of a conventional laser cutting method. In the figure, (1) is a laser beam, (2) is a focused laser beam, and (2) is a focused laser beam.
(3) 1″ is the workpiece, (5) is the workpiece, (6)
is the cutting part, (7) is the shield, and (8) is the unprocessed part. Note that the same reference numerals in each figure indicate the same or similar parts. Agent: Patent Attorney: Akio Kimura, Tsuzuki: Masa Ura (Method) February 13, 1985

Claims (2)

【特許請求の範囲】[Claims] （１）被加工物の被加工部と非加工部との間に遮蔽物を
配置して被加工部を切断することを特徴とするレーザ切
断方法。(1) A laser cutting method characterized by arranging a shield between a processed part and an unprocessed part of a workpiece and cutting the processed part. （２）前記遮蔽物がビーム反射率の高い、鏡、銅板又は
アルミニウム板であることを特徴とする特許請求の範囲
第１項記載のレーザ切断方法。(2) The laser cutting method according to claim 1, wherein the shielding object is a mirror, a copper plate, or an aluminum plate having a high beam reflectance.
JP59202041A 1984-09-28 1984-09-28 Laser cutting method Pending JPS6182986A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59202041A JPS6182986A (en) 1984-09-28 1984-09-28 Laser cutting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59202041A JPS6182986A (en) 1984-09-28 1984-09-28 Laser cutting method

Publications (1)

Publication Number Publication Date
JPS6182986A true JPS6182986A (en) 1986-04-26

Family

ID=16450948

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59202041A Pending JPS6182986A (en) 1984-09-28 1984-09-28 Laser cutting method

Country Status (1)

Country Link
JP (1) JPS6182986A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5667708A (en) * 1996-03-12 1997-09-16 Caterpillar Inc. Laser beam deflector for protection of underlying portions of an item during laser cutting of overlaying stock
US5837964A (en) * 1998-01-16 1998-11-17 Chromalloy Gas Turbine Corporation Laser drilling holes in components by combined percussion and trepan drilling

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5667708A (en) * 1996-03-12 1997-09-16 Caterpillar Inc. Laser beam deflector for protection of underlying portions of an item during laser cutting of overlaying stock
US5837964A (en) * 1998-01-16 1998-11-17 Chromalloy Gas Turbine Corporation Laser drilling holes in components by combined percussion and trepan drilling
WO1999036221A1 (en) * 1998-01-16 1999-07-22 Chromalloy Gas Turbine Corporation Combined percussion and trepan laser drilling
EP1062070A1 (en) * 1998-01-16 2000-12-27 Chromalloy Gas Turbine Corporation Combined percussion and trepan laser drilling
EP1062070A4 (en) * 1998-01-16 2003-04-09 Chromalloy Gas Turbine Corp Combined percussion and trepan laser drilling

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