JPS60213384A - Laser cutting method - Google Patents

Laser cutting method

Info

Publication number
JPS60213384A
JPS60213384A JP59067401A JP6740184A JPS60213384A JP S60213384 A JPS60213384 A JP S60213384A JP 59067401 A JP59067401 A JP 59067401A JP 6740184 A JP6740184 A JP 6740184A JP S60213384 A JPS60213384 A JP S60213384A
Authority
JP
Japan
Prior art keywords
work
free carbon
workpiece
carbon film
film
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
JP59067401A
Other languages
Japanese (ja)
Inventor
Masaru Kaneoka
優 金岡
Susumu Hoshinouchi
星之内　進
Masayuki Kaneko
雅之 金子
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 JP59067401A priority Critical patent/JPS60213384A/en
Publication of JPS60213384A publication Critical patent/JPS60213384A/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

Abstract

PURPOSE:To reduce cost by forming a free carbon film on the rear of a work such as a stainless steel and irradiating a laser beam thereto thereby cutting the work simultaneously together with the free carbon film. CONSTITUTION:The laser beam 1 is bent perpendicularly by a total reflecting mirror 3 in the 1st cylindrical body 2 and is then condensed by a condenser lens 5. The condensed beam is irradiated to a horizontally disposed work 6. The free carbon film 10 is formed on the rear of the work 6 by a paint contg. carbon and therefore the work 6 is simultaneously cut together with the film 10 by the beam 1. The molten metal cannot stick to the bottom edge in the cut part by the presence of the film 10 in this state. The generation of a sagging part is thereby prevented and therefore the need for cutting such part is eliminated and the cost for cutting is reduced.

Description

【発明の詳細な説明】 〔発明の技術分野〕 この発明は、レーザ加工のうち、竹にレーザビームを被
加工物に照射して所定の形状に切断するレーザ切断方法
に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] This invention relates to a laser cutting method of laser processing, in which bamboo is cut into a predetermined shape by irradiating the workpiece with a laser beam.

〔従来技術〕[Prior art]

第１図は被加工物を切断するときに用いられるこの種レ
ーザ加工装置を示すものである。（１）はほぼ中間部を
直角に曲折ぢせた第１筒体（２）内を通過するレーザビ
ームで、上記第１筒体（２）のコーナ部には、このレー
ザビーム（１）を第１筒体（２）に螺合によって連結さ
れた第２筒体（４）の方向に直角に屈曲はせるための全
反射鏡（３）が取シ付けられている。FIG. 1 shows this type of laser processing apparatus used when cutting a workpiece. (1) is a laser beam that passes through a first cylindrical body (2) whose approximately middle portion is bent at a right angle. A total reflection mirror (3) is attached to the first cylinder (2) for bending at right angles in the direction of the second cylinder (4) which is threadedly connected to the first cylinder (2).

（５）は上記第２筒体（４）内に設けられ、上記レーザ
ビーム（１）を被加工物（６）の表面所定位置に集光式
せるためのたとえばゲルマニウム製の集光レンズ、（７
）は上記第２筒体（４）内にたとえば「アルゴンガス」
「ヘリウムガス」または「窒素ガス」あるいは酸素ガス
等を供給するガス供給口で、この第２筒体（４）内に供
給された高圧のガスは、ノズル（８）から被〔発明の概
要。(5) is a condensing lens made of, for example, germanium, provided in the second cylinder (4), for condensing the laser beam (1) at a predetermined position on the surface of the workpiece (6); 7
) is, for example, "argon gas" in the second cylinder (4).
The high-pressure gas supplied into the second cylinder (4) at the gas supply port for supplying "helium gas", "nitrogen gas", oxygen gas, etc., is supplied from the nozzle (8) [Summary of the Invention].

〔発明の実施例。[Embodiments of the invention.

刀口 を照射してこの被加工物（６）を遊離カーボン膜αＱと
共に同時に切断するようにしたので、レーザビーム（１
）Ｋよって溶融した溶融金属は、遊離カーボン膜ＤＩの
存在によって被加工物（６）の切断部の下縁に付着する
ことができず、従来のように垂れ下り部が生じないから
、切断作業波に垂れ下り部を除去する面倒な後加工を必
要とせず、コストダウンにつながる優れた効果を有する
ものである。The laser beam (1
)K, the molten metal cannot adhere to the lower edge of the cut part of the workpiece (6) due to the presence of the free carbon film DI, and there is no hanging part as in the conventional case, so the cutting work is not easy. This method does not require troublesome post-processing to remove hanging portions of the waves, and has an excellent effect that leads to cost reduction.

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

第１図はレーザ切断に使用されるレーザ加工装置を示す
縦断面図、第２図はレーザビームのパワー密度分布図、
第６図は切断でれた従来の被加工物の拡大断面図、第４
図はこの発明を実施するためのレーザ加工装置の縦断面
図、第５図はこの発明のレーザ切断方法によって切断で
れた被加工物の拡大断面図である。 図において、（１）はレーザビーム、（２）は第１筒体
、（３）は全反射鏡、（４）は第２筒体、（５）は集光
レンズ、（６）は被加工物、（８）はノズル、←０は遊
離カーボン膜である。 なお、図中同一符号は同一または相当部分を示す。 代理人　弁理士　木　村　三　朗 第１図 第２図 ん 軸 第３図Figure 1 is a vertical cross-sectional view showing a laser processing device used for laser cutting, Figure 2 is a power density distribution diagram of the laser beam,
Figure 6 is an enlarged sectional view of a conventional workpiece that has been cut.
The figure is a longitudinal cross-sectional view of a laser processing apparatus for carrying out the present invention, and FIG. 5 is an enlarged cross-sectional view of a workpiece cut by the laser cutting method of the present invention. In the figure, (1) is the laser beam, (2) is the first cylinder, (3) is the total reflection mirror, (4) is the second cylinder, (5) is the condensing lens, and (6) is the workpiece. (8) is the nozzle, and ←0 is the free carbon film. Note that the same reference numerals in the figures indicate the same or corresponding parts. Agent Patent Attorney Sanro Kimura Figure 1 Figure 2 Axis Figure 3

Claims (4)

【特許請求の範囲】[Claims] （１）切断すべき水平なる被加工物の裏面に遊離カーボ
ン膜を形成し、この被加工物の表面所定位置にレーザビ
ームを照射してこの抜刀ロエ物を遊離カーボン膜と共に
同時に切断するようにしたことを特徴とするレーザ切断
方法。(1) A free carbon film is formed on the back surface of a horizontal workpiece to be cut, and a laser beam is irradiated to a predetermined position on the surface of the workpiece to cut the cutter and the free carbon film at the same time. A laser cutting method characterized by: （２）被加工物がステンレス鋼、アルミニウムまたはセ
ラミックス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) Claim 1, characterized in that the workpiece is stainless steel, aluminum, or ceramics.
Laser cutting method described in section. （３）遊離カーボン膜は、カーボンを混入した塗料を被
加工物の裏面に塗布して形ｇでれていることを特徴とす
る特許請求の範囲第１項記載のレーザ切断方法。(3) The laser cutting method according to claim 1, wherein the free carbon film is formed by applying a carbon-containing paint to the back surface of the workpiece. （４）遊離カーボン膜は、カーボンを混入した合成樹脂
を硬化式せて薄膜を被加工物の裏面に貼着して形成場れ
てい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。(4) The free carbon film is formed by hardening a carbon-mixed synthetic resin and adhering a thin film to the back surface of the workpiece. Laser cutting method.
JP59067401A 1984-04-06 1984-04-06 Laser cutting method Pending JPS60213384A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59067401A JPS60213384A (en) 1984-04-06 1984-04-06 Laser cutting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59067401A JPS60213384A (en) 1984-04-06 1984-04-06 Laser cutting method

Publications (1)

Publication Number Publication Date
JPS60213384A true JPS60213384A (en) 1985-10-25

Family

ID=13343888

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59067401A Pending JPS60213384A (en) 1984-04-06 1984-04-06 Laser cutting method

Country Status (1)

Country Link
JP (1) JPS60213384A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007001078A1 (en) * 2005-06-27 2007-01-04 Nitto Denko Corporation Surface protection sheet for laser material processing

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5363250A (en) * 1976-11-19 1978-06-06 Taiho Kogyo Co Ltd Melt cutting method of steel material
JPS5752585A (en) * 1980-09-16 1982-03-29 Mitsubishi Electric Corp Laser cutting method
JPS5924575A (en) * 1982-07-30 1984-02-08 Nippon Kokan Kk <Nkk> Method for preventing sticking of cutting slag on steel material

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5363250A (en) * 1976-11-19 1978-06-06 Taiho Kogyo Co Ltd Melt cutting method of steel material
JPS5752585A (en) * 1980-09-16 1982-03-29 Mitsubishi Electric Corp Laser cutting method
JPS5924575A (en) * 1982-07-30 1984-02-08 Nippon Kokan Kk <Nkk> Method for preventing sticking of cutting slag on steel material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007001078A1 (en) * 2005-06-27 2007-01-04 Nitto Denko Corporation Surface protection sheet for laser material processing
US9089930B2 (en) 2005-06-27 2015-07-28 Nitto Denko Corporation Surface protection sheet for laser material processing

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