JPS63177991A - Laser beam machine - Google Patents

Laser beam machine

Info

Publication number
JPS63177991A
JPS63177991A JP62009258A JP925887A JPS63177991A JP S63177991 A JPS63177991 A JP S63177991A JP 62009258 A JP62009258 A JP 62009258A JP 925887 A JP925887 A JP 925887A JP S63177991 A JPS63177991 A JP S63177991A
Authority
JP
Japan
Prior art keywords
laser beam
cutting
laser
focal position
mirror
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
JP62009258A
Other languages
Japanese (ja)
Inventor
Yoshihide Kanehara
好秀 金原
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 JP62009258A priority Critical patent/JPS63177991A/en
Publication of JPS63177991A publication Critical patent/JPS63177991A/en
Pending legal-status Critical Current

Links

Landscapes

  • Laser Beam Processing (AREA)

Abstract

PURPOSE:To improve the cutting quality by providing oscillating devices on an laser beam reflection mirror and allowing condensed laser beam to draw a fine circle on the focal position. CONSTITUTION:The oscillation mirror 15 supported by piezoelectric actuators 14, etc., at three places or four places is arranged with respect to the laser beam 2. When the output voltage of a signal generator 16 is applied to the oscillating devices such as the piezoelectric actuators 14, etc., the mirror 15 generates the sufficiently fast oscillation with respect to the cutting and the laser beam 2 draws the fine circle at the focal position 8 by the AC output voltage of the signal generator 16 to perform the cutting. At this time, the cutting slit width is widened via the fine circle motion of the laser beam 2 and the passage of machining gas 10 through the slit is facilitated. In this way, the cutting plane roughness becomes excellent and the dross is prevented from sticking. Accordingly, the cutting quality is improved.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明はレーザ加工機においで、金属または非金属を
レーザ切断するレーザ加工装置に関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a laser processing device for laser cutting metals or non-metals in a laser processing machine.

〔従来の技術〕[Conventional technology]

第2図は従来のレーザ加工装置の1例を示す図である。 FIG. 2 is a diagram showing an example of a conventional laser processing device.

レーザ発振器(1)より出力されろレーザ光(2)は、
ペンドミラー(3)(4) (5)により伝送され、加
工へ−Iド(6)に装着されている加工レンズ(7)に
より集光され焦点位11(8)において、金属や非金属
の被加工物(9)を切断加工する。また、酸素、窒素、
アルゴン等の加工ガスαOを加工ヘッド(6)のノズル
αυからレーザ光(2)と同軸状に吹き出す。この加工
ガスαGは被加工物(9)を切断時レーザ光(2)との
反応を高め、溶融した被加工物(9)を吹き飛ばす作用
がある。被加工物(9)とレーザ光(2)とはNO装置
等により制御される加工装置等により相対的に移動し1
、被加工物(9)に対し任意の形状の切断をすることが
できる。
The laser beam (2) output from the laser oscillator (1) is
The light is transmitted by the pend mirrors (3), (4), and (5), and is focused by the processing lens (7) attached to the I-dore (6), at the focal position 11 (8). The workpiece (9) is cut. Also, oxygen, nitrogen,
Processing gas αO such as argon is blown out from the nozzle αυ of the processing head (6) coaxially with the laser beam (2). This processing gas αG has the effect of increasing the reaction with the laser beam (2) when cutting the workpiece (9) and blowing away the melted workpiece (9). The workpiece (9) and the laser beam (2) are moved relative to each other by a processing device controlled by an NO device, etc.
, the workpiece (9) can be cut into any shape.

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

従来のレーザ加工装置はり上のように構成されているの
で、焦点位置(8)において、レーザ光(2)の集光性
能が高く、集光スポー・ト径が小さいとき、レーザ切断
スリー・ト(2)が狭くなり加工ガスαGの通過が出来
なくなる。特に被加工物(9)が厚いときや被加工物(
9)のだ融時の粘性が高いとき、被加工物(9)が吹き
飛ばされなくなりドロス(至)として被加工物(9)の
裏面側に付着する。
Since the conventional laser processing device is configured like a beam, when the focusing performance of the laser beam (2) is high at the focal position (8) and the focusing sport diameter is small, the laser cutting three-point (2) becomes narrow, making it impossible for processing gas αG to pass through. Especially when the workpiece (9) is thick or the workpiece (
9) When the viscosity during melting is high, the workpiece (9) is no longer blown away and adheres to the back side of the workpiece (9) as dross.

以上のように従来のレーザ加工装置はアルミニウムやス
テンレス、黄銅、ガラス、セラミクスなどの金属や非金
属を切断するとき、または9u以上の厚い鉄板を切断す
るとき、切断面粗度が悪く裏面にドロス(至)が付着し
切断品質が劣る等の問題点があった。
As mentioned above, conventional laser processing equipment has poor cut surface roughness when cutting metals and non-metals such as aluminum, stainless steel, brass, glass, and ceramics, or when cutting thick steel plates of 9 μm or more, resulting in dross on the back side. There were problems such as adhesion of particles (to) and poor cutting quality.

〔発明の目的〕[Purpose of the invention]

この発明は上記の様な問題点を解消する為になされπも
ので、切断スリー・トを広くでき加工ガスの通過を良く
でき良好な面粗度とドロスフリーの高品質切断ができる
レーザ加工装置を得ることを目的とする。
This invention was made to solve the above-mentioned problems, and is a laser processing device that can widen the cutting slit, improve the passage of processing gas, and perform high-quality cutting with good surface roughness and dross-free. The purpose is to obtain.

〔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加工装置は、レーザ光反射鏡を振
動させ、集光されたレーザ光が焦点位置において微小円
を描くようにし1こことにより切断幅を広くでき、加工
ガスを通過しやすくシ1こものである。
The laser processing device according to the present invention vibrates the laser beam reflecting mirror so that the focused laser beam draws a minute circle at the focal position. It's one thing.

〔作用〕[Effect]

この発明におけろレーザ加工装置は切断幅を広くするこ
とにより加工ガスが切断スリ・Iトを流れやすくし、良
好な面粗度とドロスフリーの高品質切断を可能にする。
The laser processing device of the present invention widens the cutting width to allow processing gas to easily flow through the cutting slit, thereby enabling high-quality cutting with good surface roughness and dross-free cutting.

〔発明の実施例〕[Embodiments of the invention]

以下、この発明の一実施例を図について説明する。 An embodiment of the present invention will be described below with reference to the drawings.

第1図においてレーザ光(2)は3個所まTこは4個所
を圧電アクチュエータα4に支持される振動ミラー(至
)により偏向され加工レンズ(7)により集光さね1こ
焦点位置(8)におけるレーザ光(2)の集光スギ−2
ト径は振動ミラー(至)の振れ角度により決定される。
In Fig. 1, the laser beam (2) is deflected at 3 or 4 points by a vibrating mirror supported by a piezoelectric actuator α4, and focused by a processing lens (7) at a focal point (8 ) Focusing the laser beam (2) on the cedar 2
The diameter is determined by the deflection angle of the vibrating mirror.

第1図に示す等間隔に取り付けられ′r−8個の圧電ア
クチュエータα4に3相交流の信号発生器αQの常圧に
比例する。
As shown in FIG. 1, the pressure is proportional to the normal pressure of the three-phase alternating current signal generator αQ, which is applied to the -8 piezoelectric actuators α4 installed at equal intervals.

圧電アクチュエータα引ま応答速度が非常に速いので数
キロヘルツまでの振動をすることができ、切断加工に対
し・十分に速い振動をすることができる。第4図(a)
は従来のレーザ加工装置によりシングルモードのレーザ
光(2)を集光し1こときの焦点位置(8)の強度分布
αりであり、レーザ加工に必要なレーザパワー密度(P
l)を越えるビーム径(Wl)は0.05〜0.15f
fになり非常に幅が狭い。この1こめ加工ガスαGが切
断スリーjトを通過しにくい。
The piezoelectric actuator α has a very fast response speed, so it can vibrate up to several kilohertz, which is fast enough for cutting. Figure 4(a)
is the intensity distribution α at the focal position (8) of a single mode laser beam (2) focused by a conventional laser processing device, and the laser power density (P) required for laser processing is
Beam diameter (Wl) exceeding l) is 0.05 to 0.15f
f, which is very narrow. This first processing gas αG is difficult to pass through the cutting sleet.

レーザ光(2)が第4図(b)に示すマルチモードのビ
ームであれば集光性能が悪いので(a)と同じレーザパ
ワーでは必要な集光密度IP1)に達しない。
If the laser beam (2) is a multimode beam shown in FIG. 4(b), the focusing performance will be poor, and the required focusing density IP1) will not be achieved with the same laser power as in FIG. 4(a).

そのためマルチモードによるレーザ切断加工は高出力の
レーザ発振器が必要になる。第4図(Q)は集光された
レーザ光(2)を半径(r)で微小回転させ1こもので
あり、その焦点位置(8)の強度分布をα傷に示す。
Therefore, multi-mode laser cutting requires a high-output laser oscillator. FIG. 4 (Q) shows the focused laser beam (2) being slightly rotated by a radius (r), and the intensity distribution at the focal point position (8) is shown as an α scratch.

レーザ力ロエに必要なレーザパワー密度t)’t)を越
えろビーム径(W2)は0.2〜0.4Hになり切断ス
リ1.ト幅が広くなる。このため加工ガスα0が切断ス
リ・ットを通過するのが容易になる。
Exceed the laser power density t)'t) required for laser power loe, the beam diameter (W2) will be 0.2 to 0.4H, and the cutting slit 1. width becomes wider. This makes it easier for the processing gas α0 to pass through the cutting slit.

第5図は振動ミラー(至)を振動させる圧電アクチュエ
ータα4の取り付ける位置を示すもので(1k)は8個
の圧電アクチュエータα4)を120度に等間隔に取り
付けたもので8相交流の信号発生器aGを接続してレー
ザ光(2)を焦点位!(8)において微小円回転させろ
ことが出来る。(b)は4個の圧電アクチュエータα尋
を90度に等間隔に取り付けTこもので2相交流の信号
発生器(1)何を接続してレーザ光(2)を焦点位t!
(8)において微小円回転させることが出来る。
Figure 5 shows the installation position of the piezoelectric actuator α4 that vibrates the vibrating mirror (to). (1k) shows the installation position of the piezoelectric actuator α4) which vibrates the vibrating mirror (to). (1k) is the one in which eight piezoelectric actuators α4) are installed at equal intervals of 120 degrees to generate an 8-phase AC signal. Connect the device aG and focus the laser beam (2)! In (8), it is possible to perform a minute circular rotation. (b) is a two-phase alternating current signal generator (1) with four piezoelectric actuators installed at equal intervals of 90 degrees and connected to the laser beam (2) at the focal point t!
In (8), it can be rotated in a minute circle.

第6図は振動ミラー(至)を取り付ける構造を示すもの
で振tDEラー(11圧電アクチユエータα4とゴムま
Tこはウレタン等の弾性体@で挾み押え金@で[[fろ
。圧電アクチュエータα滲の変位は30μm思下である
ので弾性体(イ)の父化量は問題無い。
Figure 6 shows the structure for attaching the vibrating mirror. Since the displacement of α leakage is 30 μm, there is no problem with the amount of thickening of the elastic body (a).

第7図は圧電アクチュエータα4の変化量(h)に対陽
を山とすれば振動ミラーα9が傾斜する角度θはθ=t
ao  2h/1 で表わされる。
Figure 7 shows that if the amount of change (h) of the piezoelectric actuator α4 is set at the peak, the angle θ at which the vibrating mirror α9 is tilted is θ=t.
It is expressed as ao 2h/1.

まfこレーザ光(2)が焦点位置(8)において描く微
小円の半径(r)は r = 2 L h / 1 で表わされろ。
The radius (r) of the minute circle drawn by the laser beam (2) at the focal position (8) is expressed by r = 2 L h /1.

圧電アクチュエータα4の変位(h)が20μm1間隔
(ト)を50fl、焦点位置(8)までの距la(勾を
150鱈とすると、 θ=0.0458度 r=0.12ff となり第4図(0)の(W2)は約0.85fiになる
If the displacement (h) of the piezoelectric actuator α4 is 20 μm and the interval (g) is 50 fl, and the distance la to the focal point position (8) is 150 mm, then θ = 0.0458 degrees r = 0.12 ff, and Fig. 4 ( (W2) of 0) is approximately 0.85fi.

なお圧電アクチュエータα4の他に磁歪振動子や電磁石
、モータやパルスモータ等の振動を使用しても圧電アク
チュエータα4と同等の効果を奏する。
Note that, in addition to the piezoelectric actuator α4, the same effect as that of the piezoelectric actuator α4 can be obtained even if vibrations of a magnetostrictive vibrator, an electromagnet, a motor, a pulse motor, etc. are used.

第8図はこの発明の他の実施例を示り、1こもので垂直
方向のレーザ光(2)を45度の角度の振動ミラーωつ
により水平方向に反射し、加工レンズ(7)の近傍に設
けTコ固定ミラー(至)により再度垂直下方向に反射す
る。レーザ光(2)は焦点位!(8)において微小回転
し被加工物(9)をレーザ切断加工する。
FIG. 8 shows another embodiment of the present invention, in which a vertical laser beam (2) is reflected in the horizontal direction by two vibrating mirrors ω at an angle of 45 degrees, and The light is reflected vertically downward again by the T-coupled fixed mirror (to) provided at the top. Laser light (2) is at the focal point! In (8), the workpiece (9) is subjected to micro rotation and laser cutting is performed.

また第9囚はこの発明の更に他の実施例を示したもので
垂直方向のレーザ光(2)を加工レンズ(7)の直後で
45度の角度の振動ミラー(至)により水平方向に反射
し・、さらに固定ミラー(ハ)により再度垂直下方向に
反射する。レーザ光(2)は焦点位置(8)において微
小回転し被加工物(9)をレーザ切断加工し上記実施例
と同様の効果を奏する。
The 9th prisoner shows still another embodiment of the present invention, in which the vertical laser beam (2) is reflected horizontally by a vibrating mirror (to) at an angle of 45 degrees immediately after the processing lens (7). Then, it is reflected vertically downward again by the fixed mirror (c). The laser beam (2) rotates slightly at the focal position (8), and the workpiece (9) is laser cut, producing the same effect as in the above embodiment.

第10図はこの発明の他の実施例を示L4こもので垂直
方向のレーザ光(2)に対し加工レンズ(7)を圧電ア
クチュエータα4により水平方向に微小円振動させるこ
とによりレーザ光(2)は焦点位1i(8)において微
小回転し上記実施例と同様の効果を奏する・まγこ、m
8図1m9図の実施例は加工レンズ(7)が直接焦点位
置(8)と対向していないので焦点位置(8)カらのス
バ・・・夕が加工レンズ(7)に付着せず高価な加工レ
ンズ(7)の寿命を長くする効果もある。
FIG. 10 shows another embodiment of the present invention. In response to the vertical laser beam (2), the processing lens (7) is vibrated in a small circle in the horizontal direction by the piezoelectric actuator α4, thereby generating the laser beam (2). rotates slightly at the focal position 1i (8) and produces the same effect as in the above embodiment.
In the embodiment shown in Figure 8, Figure 1m and Figure 9, the processed lens (7) does not directly face the focal position (8), so the particles from the focal position (8) do not adhere to the processed lens (7), making it expensive. This also has the effect of extending the life of the processed lens (7).

〔発明の効果〕〔Effect of the invention〕

以上のように、この発明によれば切断スリ1.トを広く
でき加工ガスの通過を良くでき良好な面粗度とドロスフ
リーの高品質切断ができる。
As described above, according to the present invention, the cutting pick 1. The cutting area can be widened, allowing better passage of processing gas, resulting in good surface roughness and dross-free, high-quality cutting.

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

第1図はこの発明の一実施例ケ説明するための図、第2
図は従来のレーザ加工装置の動作を説明でるための図、
第8因は従来のレーザ加工装置の動作を説明するための
拡大断面図、第4図はこの発明の詳細な説明する1こめ
の図、第5図、第6因。 第7図は振動ミラー(至)の構造を説明するための図、
第8図、第9図、第10図はこの発明の他の実施例を説
明するTこめの図である。 (1)はレーザ発振器、(2)はレーザ光、 (31(
41(51はペンドミラー、(6)は加工へ・jド、(
7)は加工レンズ、(8)は焦点位置、(9)は被加工
物、αGは加工ガス、(2)はノズル、@は切断スリー
Jト、賭はドロス、α4は圧電アクチュエータ、叫は振
動ミラー、αQ(イ)(財)は信号発庄器、翰は弾性体
、翰は押え金、(ハ)は固定反射ミラーである。 なお、図中、同一符号は同一、又は相当部分を示す。
FIG. 1 is a diagram for explaining one embodiment of the present invention, and FIG.
The figure is a diagram to explain the operation of conventional laser processing equipment.
The eighth factor is an enlarged cross-sectional view for explaining the operation of a conventional laser processing apparatus, FIG. 4 is a first view for explaining the present invention in detail, and FIGS. 5 and 6 are factors. Figure 7 is a diagram for explaining the structure of the vibrating mirror (to),
FIGS. 8, 9, and 10 are T-shaped diagrams illustrating other embodiments of the present invention. (1) is a laser oscillator, (2) is a laser beam, (31(
41 (51 is pend mirror, (6) is for processing, (
7) is the processing lens, (8) is the focal position, (9) is the workpiece, αG is the processing gas, (2) is the nozzle, @ is the cutting sleet, is the dross, α4 is the piezoelectric actuator, and is the The vibrating mirror, αQ (A) (Foundation), is a signal generator, the wire is an elastic body, the wire is a presser foot, and (C) is a fixed reflective mirror. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims (5)

【特許請求の範囲】[Claims] (1)レーザ発振器により出力されるレーザ光をレンズ
により集光し金属等を切断するレーザ加工装置において
、レーザ光反射鏡を振動させる手段を具備し、集光され
たレーザ光が焦点位置において微小円を描くようにした
ことを特徴とするレーザ加工装置。
(1) A laser processing device that focuses laser light output from a laser oscillator using a lens to cut metal, etc., is equipped with a means for vibrating a laser light reflecting mirror, so that the focused laser light becomes very small at the focal position. A laser processing device characterized by a circular pattern.
(2)レーザ光反射鏡を振動させる手段として圧電アク
チュエータを使用したことを特徴とする特許請求の範囲
第1項記載のレーザ加工装置。
(2) The laser processing apparatus according to claim 1, wherein a piezoelectric actuator is used as a means for vibrating the laser beam reflecting mirror.
(3)レーザ光反射鏡は3個の圧電アクチュエータを使
用して周波数と電圧を可変できる3相交流電圧を加える
ことを特徴とする特許請求の範囲第1項記載のレーザ加
工装置。
(3) The laser processing apparatus according to claim 1, wherein the laser beam reflecting mirror applies a three-phase AC voltage whose frequency and voltage can be varied using three piezoelectric actuators.
(4)レーザ光反射鏡は4個の圧電アクチュエータを使
用して周波数と電圧を可変できる2相交流電圧を加える
ことを特徴とする特許請求の範囲第1項記載のレーザ加
工装置。
(4) The laser processing apparatus according to claim 1, wherein the laser beam reflecting mirror applies a two-phase AC voltage whose frequency and voltage can be varied using four piezoelectric actuators.
(5)集光されたレーザ光が焦点位置において描く微小
円の半径はレーザビームスポット径の半径以下であるこ
とを特徴とする特許請求の範囲第1項記載のレーザ加工
装置。
(5) The laser processing apparatus according to claim 1, wherein the radius of the minute circle drawn by the focused laser beam at the focal position is less than or equal to the radius of the laser beam spot diameter.
JP62009258A 1987-01-19 1987-01-19 Laser beam machine Pending JPS63177991A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62009258A JPS63177991A (en) 1987-01-19 1987-01-19 Laser beam machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62009258A JPS63177991A (en) 1987-01-19 1987-01-19 Laser beam machine

Publications (1)

Publication Number Publication Date
JPS63177991A true JPS63177991A (en) 1988-07-22

Family

ID=11715395

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62009258A Pending JPS63177991A (en) 1987-01-19 1987-01-19 Laser beam machine

Country Status (1)

Country Link
JP (1) JPS63177991A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5449882A (en) * 1993-03-15 1995-09-12 Reliant Laser Corporation Mirror-based laser-processing system with temperature and position control of moving laser spot
US7182262B2 (en) * 2003-03-13 2007-02-27 Symbol Technologies, Inc. Inertial drive scanning arrangement and method
EP2045034A1 (en) 2007-10-03 2009-04-08 Shinko Electric Industries Co., Ltd. Flip-chip mounting apparatus
JP2010162561A (en) * 2009-01-14 2010-07-29 Nippon Steel Corp Laser beam cutting method and apparatus
JP2015205279A (en) * 2014-04-17 2015-11-19 株式会社Wel−Ken Machining head for laser beam machining apparatus
DE102022118282A1 (en) 2022-07-21 2024-02-01 TRUMPF Werkzeugmaschinen SE + Co. KG Laser cutting process with periodically recurring superimposed beam deflection

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53141049A (en) * 1977-05-16 1978-12-08 Hitachi Ltd Optical system of laser machine
JPS60234790A (en) * 1984-05-08 1985-11-21 Mitsubishi Electric Corp Machining head of laser beam machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53141049A (en) * 1977-05-16 1978-12-08 Hitachi Ltd Optical system of laser machine
JPS60234790A (en) * 1984-05-08 1985-11-21 Mitsubishi Electric Corp Machining head of laser beam machine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5449882A (en) * 1993-03-15 1995-09-12 Reliant Laser Corporation Mirror-based laser-processing system with temperature and position control of moving laser spot
US7182262B2 (en) * 2003-03-13 2007-02-27 Symbol Technologies, Inc. Inertial drive scanning arrangement and method
EP2045034A1 (en) 2007-10-03 2009-04-08 Shinko Electric Industries Co., Ltd. Flip-chip mounting apparatus
JP2010162561A (en) * 2009-01-14 2010-07-29 Nippon Steel Corp Laser beam cutting method and apparatus
JP2015205279A (en) * 2014-04-17 2015-11-19 株式会社Wel−Ken Machining head for laser beam machining apparatus
DE102022118282A1 (en) 2022-07-21 2024-02-01 TRUMPF Werkzeugmaschinen SE + Co. KG Laser cutting process with periodically recurring superimposed beam deflection

Similar Documents

Publication Publication Date Title
JP4731082B2 (en) Method and apparatus for cutting flat workpieces made from brittle materials
JP2001030089A (en) Method of laser welding
JP2690466B2 (en) Laser beam spinner
Schmitt et al. Laser Beam Micro Welding With High Brilliant Fiber Lasers.
JP2003220484A (en) Device and method for laser beam machining
JP3534806B2 (en) Laser cutting method and apparatus
JPS63177991A (en) Laser beam machine
JPH11170072A (en) Method and device for laser beam machining and for forming circuit of nonconductive transparent substrate
US6504130B1 (en) Laser cutting method
JP2000107876A (en) Laser beam welding method and laser beam welding equipment
JP3323987B2 (en) Laser processing equipment
JP3687070B2 (en) Method and apparatus for cutting flat workpieces made from brittle materials
JP2003019585A (en) Device and method for laser beam machining
US4369348A (en) Method and apparatus for high frequency optical beam oscillation
JPS60177983A (en) Spot welding method
CN112823075B (en) Laser processing machine and laser processing method
JPH09248684A (en) Laser beam machine
JPH0669928U (en) Laser beam oscillator device
JPS60234790A (en) Machining head of laser beam machine
CN116021174B (en) Dynamic control method of laser light spot and laser cutting device
JPH03504109A (en) A scanning device for continuous irradiation of the processed surface, especially for the UV exposure of photosensitive emulsions on serigraph printing frames
JPH09108876A (en) Laser cutting method and apparatus therefor
JP4047621B2 (en) Laser processing equipment
Coste et al. Adaptive control of high-thickness laser welding
JP2639055B2 (en) Laser processing machine