JPS63212081A - Laser beam machining method - Google Patents
Laser beam machining methodInfo
- Publication number
- JPS63212081A JPS63212081A JP62248019A JP24801987A JPS63212081A JP S63212081 A JPS63212081 A JP S63212081A JP 62248019 A JP62248019 A JP 62248019A JP 24801987 A JP24801987 A JP 24801987A JP S63212081 A JPS63212081 A JP S63212081A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- infrared lamps
- order
- laser beam
- machining
- 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
Links
- 238000003754 machining Methods 0.000 title abstract description 6
- 238000000034 method Methods 0.000 title abstract description 3
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 238000003672 processing method Methods 0.000 claims description 5
- 238000003466 welding Methods 0.000 abstract description 9
- 239000013078 crystal Substances 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000677 High-carbon steel Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Landscapes
- Laser Beam Processing (AREA)
Abstract
Description
【発明の詳細な説明】 〔発明の目的〕 （産業上の利用分野） 本発明はレーザ加工方法に関する。[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to a laser processing method.
（従来の技術）
レーザ光の照射によって種々の加工がなされているが、
たとえばレーザ溶接加工においても、他の熱源による溶
接加工と同様に溶接部には残留応力が発生するためこの
応力の除去工程を必要としている。まえ、最近需要の多
くなりている低合金鋼、高炭素鋼では、溶接部分におい
て、結晶粒の粗大化、ｆ度の上昇、靭性の低下、疲労強
度の低下等が起こるため、特に上記の除去工程が必要で
ある。残留応力を除去するには溶接加工後、通常、溶接
部分を熱処理して行っている。従来、この熱処理は電気
炉やガス炎で行りていた。(Prior art) Various types of processing are performed by irradiating laser light.
For example, in laser welding, as in welding using other heat sources, residual stress is generated in the weld, and therefore a step to remove this stress is required. First, with low-alloy steel and high-carbon steel, which are in increasing demand recently, coarsening of crystal grains, increase in f degree, decrease in toughness, and decrease in fatigue strength occur in welded parts, so it is especially important to remove the above-mentioned materials. A process is necessary. To remove residual stress, the welded part is usually heat treated after welding. Conventionally, this heat treatment was performed using an electric furnace or gas flame.
（発明が解決しようとする問題点）
電気炉の場合、設備が大規模となる他に、レーザ浴接と
同時に熱処理できないことや、熱処理の必要のない箇所
を加熱してしまう不具合がある。(Problems to be Solved by the Invention) In the case of an electric furnace, in addition to requiring large-scale equipment, there are other problems such as the inability to perform heat treatment at the same time as laser bath welding and the heating of areas that do not require heat treatment.
また、ガス炎は装置的には簡易であるが、水蒸気を含ん
だ排ガスが発生するため、ＣＯ，レーザ光を照射した場
合には、ＣＯ，レーザ光が水蒸気に吸収される性質があ
り、タクトタイム低減のためにレーザ溶接と同時に熱処
理を行う熱源としてガス炎を使用することは不適当であ
る。そこで本発明はレーザ加工を行った加工部に対して
熱処理を好適に行うレーザ加工方法を提供することを目
的とする。In addition, gas flames are simple in terms of equipment, but because they generate exhaust gas containing water vapor, when CO and laser light are irradiated, the CO and laser light have the property of being absorbed by water vapor. It is inappropriate to use a gas flame as a heat source for heat treatment at the same time as laser welding to reduce time. SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a laser processing method that suitably performs heat treatment on a processed portion that has been laser processed.
（問題点を解決するための手段と作用）レーザ光と被加
工物とを相対的に走査して加工部を形成するレーザ加工
方法において、上記加工部に沿ってこの加工部を加熱す
る赤外線ランプを複数個配置し上記走査に従ってこれら
赤外線ランプを順次点灯し加工終了後において上記点灯
の開始順序に従って順次消灯して上記加工部に対して熱
処理を加えたもので、消灯のタイミングの調整で適切に
加工部に熱処理を加えることができる。(Means and effects for solving the problem) In a laser processing method in which a laser beam and a workpiece are scanned relative to each other to form a processed part, an infrared lamp heats the processed part along the above-mentioned processed part. A plurality of infrared lamps are arranged, and these infrared lamps are sequentially turned on according to the above-mentioned scanning, and after the processing is completed, the lights are turned off one after another according to the above-mentioned starting order of lighting, and heat treatment is applied to the above-mentioned processing part. Heat treatment can be applied to the processed part.
（実施例）
レーザ加工のうち、レーザ溶接加工における実施例につ
いて図面を参照して説明する。（１）は保持具でテーブ
ル（２）１こ載置された被加工物 （３ａ）。(Example) Among laser processing, an example of laser welding processing will be described with reference to the drawings. (1) is a workpiece (3a) placed on a table (2) with a holder.
（３ｂ）を固着する大めに設けられている。（４）はた
とえばＣＯ，レーザ発振器（図示せず）から放出された
レーザ光（Ｌ）を加工部に集光する集光レンズ（図示せ
ず）を内股し、不活性ガス等のアシストガス（５）を導
入して先端部より噴出する機構になるノズルで、その先
端部は被加工物（３ａ）、 （３ｂ）の突き合わせ部分
（６）に向けられ、ま九この突き合わせ部分に沿って図
示せぬ駆動装置により走査されるようになっている。さ
らに、上記突き合わせ部分（６）を加熱するために加熱
装置として多数の赤外線ランプ（７・・・）が線状に設
けられている。これら赤外線ランプ（７・・・）はノズ
ル（４）を間にして両側に多数並び、突き合わせ部分（
６）に向けて両側から加熱するようになっている。また
、赤外線ランプ（７・・・）は全ランプ同時点灯や各別
に点灯その他任意に点灯制御可能になっている。(3b) is provided with a larger size to secure it. (4) has a condensing lens (not shown) that focuses the laser beam (L) emitted from a CO or laser oscillator (not shown) on the processing area, and an assist gas such as an inert gas ( This is a nozzle that has a mechanism to introduce 5) and eject it from the tip.The tip is directed towards the abutment part (6) of the workpieces (3a) and (3b), It is designed to be scanned by a drive device (not shown). Further, a large number of infrared lamps (7...) are provided in a line as heating devices to heat the abutting portion (6). A large number of these infrared lamps (7...) are lined up on both sides with the nozzle (4) in between, and the butt part (
6) is heated from both sides. Further, the infrared lamps (7...) can be controlled to turn on all the lamps at the same time, turn on each lamp individually, or arbitrarily control the lighting.
次に上記の構成による作用について述べる。Next, the effects of the above configuration will be described.
図示せぬ駆動装置によりノズル（４）を走査しレーザ光
（Ｌ）を照射して突き合わせ部（６）を溶接する。A driving device (not shown) scans the nozzle (4) and irradiates the laser beam (L) to weld the abutting portion (6).
この走査の際、赤外線ランプ（７・・・）を順次点灯し
形成された溶接部（８）に熱を加え冷却速度を制御する
。溶接終了後においては、時間の経過に伴ない、点灯開
始の順序に従って順次消灯することにより、溶接部（８
）に対し好適に熱処理を行うことができる。During this scanning, the infrared lamps (7...) are sequentially turned on to apply heat to the formed weld (8) and control the cooling rate. After welding is completed, the welded area (8
) can be suitably heat treated.
なお、本発明は溶接加工以外に切断、溝切り等のレーザ
加工にも適用可能である。In addition to welding, the present invention is also applicable to laser processing such as cutting and grooving.
レーザ光の照射を妨げることなく十分な強度をもった溶
接部や鋭利な切断部を形成するとともにこれら加工部に
対し残留応力を好適に除去したり、結晶粒の粗大化を防
止するなどの効果の他に、タクトタイムを大幅に短縮す
るなどの加工能率上の効果を奏することができた。It forms welded parts and sharp cut parts with sufficient strength without interfering with laser beam irradiation, and also effectively removes residual stress from these processed parts and prevents coarsening of crystal grains. In addition, we were able to achieve effects on machining efficiency, such as significantly shortening takt time.
図面は本発明の一実施例を説明するための概要図である
。
（り・・・保持具、（４）・・・ノズル。
（７）・・・赤外線ランプ。The drawings are schematic diagrams for explaining one embodiment of the present invention. (ri... Holder, (4)... Nozzle. (7)... Infrared lamp.
Claims (1)
するレーザ加工方法において、上記加工部に沿ってこの
加工部を加熱する赤外線ランプを複数個配置し、上記走
査に従ってこれら赤外線ランプを順次点灯し加工終了後
において上記点灯の開始順序に従って順次消灯して上記
加工部に対して熱処理を加えたことを特徴とするレーザ
加工方法。In a laser processing method in which a processed part is formed by relatively scanning a laser beam and a workpiece, a plurality of infrared lamps are arranged along the processed part to heat the processed part, and these infrared lamps are heated according to the scanning. A laser processing method characterized in that the lights are sequentially turned on and after the processing is completed, the lights are turned off sequentially in accordance with the starting order of the lighting to apply heat treatment to the processed portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62248019A JPS63212081A (en) | 1987-10-02 | 1987-10-02 | Laser beam machining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62248019A JPS63212081A (en) | 1987-10-02 | 1987-10-02 | Laser beam machining method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63212081A true JPS63212081A (en) | 1988-09-05 |
Family
ID=17171992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62248019A Pending JPS63212081A (en) | 1987-10-02 | 1987-10-02 | Laser beam machining method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63212081A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001068309A1 (en) * | 2000-03-15 | 2001-09-20 | Eduard Borisovich Gusev | Material laser processing |
| WO2002045900A1 (en) * | 2000-12-08 | 2002-06-13 | Svar S.R.O. | Device for light-beam material processing |
| JP2005039279A (en) * | 2003-07-17 | 2005-02-10 | Applied Materials Inc | Method of surface texturizing |
| US8075725B2 (en) * | 2002-12-27 | 2011-12-13 | Laserquipment Ag | Method and device for welding thermoplastic material shaped parts, particularly for contour-welding three-dimensional shaped parts |
| RU2638090C1 (en) * | 2016-09-12 | 2017-12-11 | Владимир Дмитриевич Шкилев | Method of welding of thin-sheet materials |
| RU2677421C1 (en) * | 2017-12-01 | 2019-01-16 | Владимир Дмитриевич Шкилев | Method of welding of sheet metal products and device for its implementation |
-
1987
- 1987-10-02 JP JP62248019A patent/JPS63212081A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001068309A1 (en) * | 2000-03-15 | 2001-09-20 | Eduard Borisovich Gusev | Material laser processing |
| WO2002045900A1 (en) * | 2000-12-08 | 2002-06-13 | Svar S.R.O. | Device for light-beam material processing |
| US8075725B2 (en) * | 2002-12-27 | 2011-12-13 | Laserquipment Ag | Method and device for welding thermoplastic material shaped parts, particularly for contour-welding three-dimensional shaped parts |
| JP2005039279A (en) * | 2003-07-17 | 2005-02-10 | Applied Materials Inc | Method of surface texturizing |
| RU2638090C1 (en) * | 2016-09-12 | 2017-12-11 | Владимир Дмитриевич Шкилев | Method of welding of thin-sheet materials |
| RU2677421C1 (en) * | 2017-12-01 | 2019-01-16 | Владимир Дмитриевич Шкилев | Method of welding of sheet metal products and device for its implementation |
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