JPH1133754A - Method for removing oxide film by laser processing machine - Google Patents
Method for removing oxide film by laser processing machineInfo
- Publication number
- JPH1133754A JPH1133754A JP9188399A JP18839997A JPH1133754A JP H1133754 A JPH1133754 A JP H1133754A JP 9188399 A JP9188399 A JP 9188399A JP 18839997 A JP18839997 A JP 18839997A JP H1133754 A JPH1133754 A JP H1133754A
- Authority
- JP
- Japan
- Prior art keywords
- oxide film
- laser
- processing machine
- laser processing
- product
- 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.)
- Withdrawn
Links
Landscapes
- Laser Beam Processing (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、レーザ加工にお
いて、レーザ加工機による酸化被膜除去方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for removing an oxide film by a laser processing machine in laser processing.
【０００２】[0002]
【従来の技術】レーザ加工では、通常は標準的にアシス
トガスとして酸素を使用する場合が多く、後工程で溶
接、塗装などの操作を控えている場合など切断時に発生
した酸化被膜を除去する必要が生ずる。2. Description of the Related Art In laser processing, oxygen is usually used as an assist gas in many cases, and it is necessary to remove an oxide film generated at the time of cutting, such as when welding, painting, and other operations are refrained in a later process. Occurs.
【０００３】また、酸化被膜の発生を無くすためには、
アシストガスとして窒素ガス等を使用するのが通例であ
る。In order to eliminate the formation of an oxide film,
It is customary to use nitrogen gas or the like as an assist gas.
【０００４】[0004]
【発明が解決しようとする課題】然しながら、上述の従
来例では、発生した酸化被膜の除去工程を別途に設ける
か、または酸化被膜の発生を無くすために、アシストガ
スとして窒素ガス等を用いた場合、そのためにコスト高
となり切断可能な板厚についても制限され、経済的な面
で可なり不利な状況を呈するという課題がある。However, in the above-described conventional example, a step of removing the generated oxide film is separately provided, or in the case where nitrogen gas or the like is used as an assist gas in order to eliminate the generation of the oxide film. Therefore, there is a problem that the cost is high, and the thickness of the cuttable plate is limited, which presents a considerable disadvantage in economical aspects.
【０００５】この発明は、上述の点に着目してなされた
もので、酸化被膜の除去装置を別途に設けることなく、
且つ高価な窒素ガス等を不要とするレーザ加工機による
酸化被膜除去方法を提供することを目的とする。[0005] The present invention has been made in view of the above points, and without separately providing an oxide film removing device.
It is another object of the present invention to provide a method for removing an oxide film by a laser processing machine which does not require expensive nitrogen gas or the like.
【０００６】[0006]
【課題を解決するための手段】この発明は、下記構成を
備えることにより上記課題を解決できるものである。The present invention can solve the above-mentioned problems by providing the following constitution.
【０００７】（１） レーザ加工において、アシストガ
スとして酸素を用いて切断し、切断工程終了後に母材に
刻まれた製品側の製品輪郭に発生した酸化被膜を、加工
機の機種を変更することなく、同一のレーザ加工機によ
り、異なるアシストガスと、レーザ光の熱量を低減調節
する熱量低減調節手段とを用い、且つ異なったレーザ光
照射・走行手段により除去することを特徴とするレーザ
加工機による酸化被膜除去方法。(1) In laser processing, cutting is performed using oxygen as an assist gas, and after the cutting step is completed, an oxide film generated on a product contour on a product side cut on a base material is changed in a machine type. A laser processing machine using different assist gas and a calorific value reduction adjusting means for reducing and adjusting the calorific value of the laser light by the same laser processing machine, and removing by a different laser light irradiation / running means. Oxide film removal method by
【０００８】（２） 異なるアシストガスは、低コスト
の空気としたことを特徴とする前項（１）記載のレーザ
加工機による酸化被膜除去方法。(2) The method for removing an oxide film by using a laser beam machine as described in (1) above, wherein the different assist gas is low-cost air.
【０００９】（３） 熱量低減調節手段は、レーザ光の
熱量を被加工物の被対象部分が溶融しない程度に調節す
ることを特徴とする前項（１）記載のレーザ加工機によ
る酸化被膜除去方法。(3) The method for removing an oxide film by a laser processing machine according to the above (1), wherein the calorie reduction adjusting means adjusts the calorific value of the laser beam so that the target portion of the workpiece is not melted. .
【００１０】（４） 異なったレーザ光照射・走行手段
は、切断時のレーザヘッドの走行経路に対し、切断操作
後その経路をレーザ光を照射してレーザヘッドを走行さ
せた時に酸化被膜が発生している部位を正しく照射する
ように製品側に微量にオフセットし、製品側の輪郭に沿
って、レーザヘッドを走行させることを特徴とする前項
（１）記載のレーザ加工機による酸化被膜除去方法。(4) The different laser beam irradiation / running means generates an oxide film when the laser head is run by irradiating the laser head with the laser beam after the cutting operation on the running path of the laser head at the time of cutting. (1) The method for removing an oxide film by using a laser processing machine according to the above (1), wherein a small amount of offset is applied to the product side so as to properly irradiate the part to be irradiated, and the laser head is moved along the contour of the product side. .
【００１１】[0011]
【発明の実施の形態】以下にこの発明の一実施の形態を
説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below.
【００１２】図１（ａ）は、この発明に係る製品板取り
における、切断経路と酸化被膜除去経路を示す平面図、
同（ｂ）は通常切断経路及び酸化被膜除去経路の例を示
す拡大平面図、図２はレーザ加工機の一例を示す本体斜
視図である。FIG. 1 (a) is a plan view showing a cutting path and an oxide film removing path in the product sheet removing according to the present invention.
2B is an enlarged plan view showing an example of a normal cutting path and an oxide film removing path, and FIG. 2 is a perspective view of a main body showing an example of a laser processing machine.
【００１３】図面について説明すれば、１は母材、２は
製品輪郭を、Ｗs は製品を、Ａは通常切断経路を、また
Ｂは酸化被膜除去経路を示し、この酸化被膜除去経路Ｂ
は、切断時のレーザヘッド（図示せず）の走行経路に対
し、切断操作後、前記酸化被膜除去経路Ｂをレーザ光を
照射してレーザヘッド（図示せず）を走行させた時に酸
化被膜が発生している部位を正しく照射するように製品
側に微量にオフセットし、製品輪郭５に沿って、レーザ
ヘッド（図示せず）を走行させるように制御してある。Referring to the drawings, reference numeral 1 denotes a base material, 2 denotes a product profile, Ws denotes a product, A denotes a normal cutting path, and B denotes an oxide film removing path.
After the cutting operation, the oxide film is removed when the laser beam (irradiation) is applied to the oxide film removal path B and the laser head (not shown) travels with respect to the travel path of the laser head (not shown) at the time of cutting. A small amount of offset is applied to the product side so as to irradiate the generated portion correctly, and a laser head (not shown) is controlled to travel along the product outline 5.
【００１４】Ｒは例としてのレーザ加工機、Ｃは制御ボ
ックス、Ｔは加工テーブルであって、レーザ加工機Ｒの
外観を示す。R is a laser processing machine as an example, C is a control box, and T is a processing table, which shows the appearance of the laser processing machine R.
【００１５】上述の構成に基づいて作用を説明する。The operation will be described based on the above configuration.
【００１６】レーザ加工機Ｒの加工テーブルＴ上に、母
材１を載置し、アシストガスとしての酸素を噴射しなが
らレーザ光を照射してレーザヘッド（図示せず）を、制
御ボックスＣからの指令により製品輪郭２に沿って走行
させ、通常の切断加工を行い、母材１と製品Ｗs とが未
だ分離せず、即ち製品Ｗs が切断加工時の所定位置に保
持されている状態で、レーザ光による酸化被膜除去操作
が実施される。The base material 1 is mounted on a processing table T of a laser processing machine R, and a laser head (not shown) is irradiated by irradiating a laser beam while injecting oxygen as an assist gas from a control box C. Is moved along the product contour 2 in accordance with the command of the above, normal cutting is performed, and the base material 1 and the product Ws are not yet separated, that is, while the product Ws is held at a predetermined position at the time of the cutting, An oxide film removing operation using a laser beam is performed.
【００１７】この酸化被膜除去操作は、製品Ｗs の酸化
被膜が発生している部位（切断面）に製品Ｗs の輪郭に
沿ってレーザ光が正しく照射されるように、レーザヘッ
ドを製品Ｗs 側に微量にオフセットし、所謂異なったレ
ーザ光照射・走行手段を用い、且つ被照射面にレーザ光
を照射した時に、前記被照射面に溶融金属が発生しない
ようにレーザ光の所有熱量を適量に調節する熱量低減調
節手段と共に、異なるアシストガスとして低コストの空
気を使用し、レーザヘッド（図示せず）を正しく走行さ
せ酸化被膜を除去することができる。The operation of removing the oxide film is performed by moving the laser head to the product Ws side so that the laser beam is correctly irradiated along the contour of the product Ws to the portion (cut surface) of the product Ws where the oxide film is generated. A small amount of offset, so-called different laser light irradiation / running means is used, and when the surface to be irradiated is irradiated with laser light, the possessed heat amount of the laser light is appropriately adjusted so that molten metal is not generated on the surface to be irradiated. By using low-cost air as a different assist gas together with the calorific value reduction adjusting means, a laser head (not shown) can be run properly to remove an oxide film.
【００１８】なお、酸素を用いて切断した切断面の酸化
被膜除去については、この発明に係る方法が広範囲に適
用可能である。The method according to the present invention can be applied to a wide range for removing an oxide film on a cut surface cut with oxygen.
【００１９】[0019]
【発明の効果】この発明によれば、酸化被膜の除去装置
を別途に設けることなく、従って工程を改善することが
でき、且つ高価な窒素ガス等を不要とし、ランニングコ
ストが低減できるという効果を呈する。According to the present invention, it is possible to improve the process without separately providing an oxide film removing device, to eliminate the need for expensive nitrogen gas and the like, and to reduce the running cost. Present.
【図１】 （ａ）この発明に係る製品板取りにおける、
切断経路と酸化被膜除去経路を示す平面図、同（ｂ）通
常切断経路及び酸化被膜除去経路の例を示す拡大平面図BRIEF DESCRIPTION OF THE DRAWINGS (a) In the product plate removal according to the present invention,
FIG. 2B is a plan view showing a cutting path and an oxide film removing path, and FIG.
【図２】 レーザ加工機の一例を示す本体斜視図FIG. 2 is a main body perspective view showing an example of a laser processing machine.
１ 母材 ２ 製品輪郭 Ｗs 製品 Ｒ 例としてのレーザ加工機 Ｃ 制御ボックス Ｔ 加工テーブル 1 Base material 2 Product contour Ws Product R Laser machine as an example C Control box T Processing table
Claims (4)
て酸素を用いて切断し、切断工程終了後に母材に刻まれ
た製品側の製品輪郭に発生した酸化被膜を、加工機の機
種を変更することなく、同一のレーザ加工機により、異
なるアシストガスと、レーザ光の熱量を低減調節する熱
量低減調節手段とを用い、且つ異なったレーザ光照射・
走行手段により除去することを特徴とするレーザ加工機
による酸化被膜除去方法。1. In laser processing, cutting is performed by using oxygen as an assist gas, and an oxide film formed on a product side of a product cut on a base material after a cutting process is completed without changing a model of a processing machine. By using the same laser beam machine, different assist gas and calorie reduction adjusting means for reducing and adjusting the calorific value of laser light,
An oxide film removing method using a laser processing machine, wherein the oxide film is removed by running means.
としたことを特徴とする請求項１記載のレーザ加工機に
よる酸化被膜除去方法。2. The method according to claim 1, wherein the different assist gas is low-cost air.
被加工物の被対象部分が溶融しない程度に調節すること
を特徴とする請求項１記載のレーザ加工機による酸化被
膜除去方法。3. The method according to claim 1, wherein the calorie reduction adjusting means adjusts the calorific value of the laser beam to such an extent that the target portion of the workpiece does not melt.
断時のレーザヘッドの走行経路に対し、切断操作後その
経路をレーザ光を照射してレーザヘッドを走行させた時
に酸化被膜が発生している部位を正しく照射するように
製品側に微量にオフセットし、製品側の輪郭に沿って、
レーザヘッドを走行させることを特徴とする請求項１記
載のレーザ加工機による酸化被膜除去方法。4. A different laser beam irradiation / running means generates an oxide film when the laser head is run by irradiating a laser beam on the path of the laser head at the time of cutting and irradiating the path after the cutting operation. A small amount of offset to the product side to irradiate the part that is
2. The method according to claim 1, wherein the laser head is driven.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9188399A JPH1133754A (en) | 1997-07-14 | 1997-07-14 | Method for removing oxide film by laser processing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9188399A JPH1133754A (en) | 1997-07-14 | 1997-07-14 | Method for removing oxide film by laser processing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1133754A true JPH1133754A (en) | 1999-02-09 |
Family
ID=16222969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9188399A Withdrawn JPH1133754A (en) | 1997-07-14 | 1997-07-14 | Method for removing oxide film by laser processing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1133754A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003040265A (en) * | 2001-07-31 | 2003-02-13 | Daiwa Can Co Ltd | Welded can body with code mark and method for forming the code mark |
| JP2007107574A (en) * | 2005-10-12 | 2007-04-26 | Koganei Corp | Fluid pressure drive apparatus equipped with displacement detector |
-
1997
- 1997-07-14 JP JP9188399A patent/JPH1133754A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003040265A (en) * | 2001-07-31 | 2003-02-13 | Daiwa Can Co Ltd | Welded can body with code mark and method for forming the code mark |
| JP2007107574A (en) * | 2005-10-12 | 2007-04-26 | Koganei Corp | Fluid pressure drive apparatus equipped with displacement detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20041005 |