JP2003266189A - Welding equipment, method of welding and method of manufacturing work having welded component - Google Patents
Welding equipment, method of welding and method of manufacturing work having welded componentInfo
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- JP2003266189A JP2003266189A JP2002072346A JP2002072346A JP2003266189A JP 2003266189 A JP2003266189 A JP 2003266189A JP 2002072346 A JP2002072346 A JP 2002072346A JP 2002072346 A JP2002072346 A JP 2002072346A JP 2003266189 A JP2003266189 A JP 2003266189A
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- Prior art keywords
- welding
- welded
- powder metal
- annular
- light intensity
- 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.)
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、レーザビームを用
いて溶接を行う溶接装置、溶接方法および溶接された被
加工物を有する物品の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a welding device for welding using a laser beam, a welding method, and a method for manufacturing an article having a welded workpiece.
【０００２】[0002]
【従来の技術】従来、レーザビームを用いて溶接を行う
ものとして、特公平３−４１２７２号公報、特公平５−
５５９３号公報に示すものがある。これらの公報には、
エンジンバルブのバルブフェースに粉末金属を供給しつ
つその粉末金属にレーザビームを照射して加熱溶融さ
せ、肉盛溶接を行うものが記載されている。2. Description of the Related Art Conventionally, Japanese Patent Publication No. 3-41272 and Japanese Patent Publication No.
There is one disclosed in Japanese Patent No. 5593. These publications include
It is described that powder metal is supplied to a valve face of an engine valve, the powder metal is irradiated with a laser beam to be heated and melted, and overlay welding is performed.
【０００３】[0003]
【発明が解決しようとする課題】上記した従来のレーザ
ビームを用いた溶接では、粉末金属を落下等によって供
給し、その供給地点（落下地点）においてレーザビーム
を照射しているため、全ての粉末金属がレーザビームの
エネルギーを直接吸収することができず、その結果、内
部欠陥の無い緻密な粉末金属の溶融層を十分な厚さで形
成することができないという問題がある。In the above-mentioned conventional welding using a laser beam, powder metal is supplied by dropping or the like, and the laser beam is irradiated at the supply point (falling point). There is a problem that the metal cannot directly absorb the energy of the laser beam, and as a result, a dense powder metal melt layer having no internal defects cannot be formed with a sufficient thickness.
【０００４】本発明は上記問題に鑑みたもので、レーザ
ビームを用いた溶接において、供給する粉末金属がレー
ザビームのエネルギーを十分吸収できるようにすること
を目的とする。The present invention has been made in view of the above problems, and it is an object of the present invention to enable powder metal to be supplied to sufficiently absorb the energy of a laser beam in welding using a laser beam.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するた
め、請求項１に記載の発明では、レーザビームを用いて
溶接を行う溶接装置において、レーザビームを、ビーム
の進行に伴って光強度分布を持たない中空部分の径が縮
小する環状ビームに変形するビーム変形手段と、前記環
状ビームがその中空部分の径の縮小によって光強度を中
心に有する中詰まりビームに変化しつつあるところのビ
ーム内に粉末金属を供給する粉末金属供給手段と、を備
えたことを特徴としている。In order to achieve the above object, according to the invention as set forth in claim 1, in a welding apparatus for welding using a laser beam, the laser beam has a light intensity distribution as the beam advances. A beam deforming means for deforming into a ring-shaped beam having a hollow portion having a reduced diameter, and the inside of the beam where the ring-shaped beam is being transformed into an intermediately blocked beam having a light intensity at the center due to the reduction of the diameter of the hollow portion. And a powder metal supply means for supplying powder metal.
【０００６】前記環状ビームがその中空部分の径の縮小
によって光強度を中心に有する中詰まりビームに変化し
つつあるところのビーム内に粉末金属を供給する粉末金
属供給手段と、を備えたことを特徴としている。The annular beam is provided with a powder metal supply means for supplying powder metal into the beam where the beam is being changed to a solid beam having a light intensity at its center due to the reduction of the diameter of the hollow portion. It has a feature.
【０００７】この発明によれば、ビームの進行に伴って
光強度分布を持たない中空部分の径が縮小する環状ビー
ムを用い、環状ビームが中詰まりビームに変化しつつあ
るところのビーム内に粉末金属を供給するようにしてい
るから、供給する粉末金属がレーザビームのエネルギー
を十分吸収することができる。According to the present invention, an annular beam is used in which the diameter of the hollow portion having no light intensity distribution is reduced with the progress of the beam, and the powder is contained in the beam where the annular beam is being changed to a solid beam. Since the metal is supplied, the powder metal to be supplied can sufficiently absorb the energy of the laser beam.
【０００８】ここで、上記したビーム変形手段として
は、請求項２に記載の発明のように、前記レーザビーム
を、ビームの進行方向に直交する断面における光強度分
布が環状であるビームに変形する手段と、この手段によ
って変形されたビームを、ビームの進行に伴って光強度
分布を持たない中空部分の径が縮小する前記環状ビーム
に変形する手段とを有するものとすることができる。ま
た、上記した粉末金属供給手段としては、請求項３に記
載の発明のように、前記粉末金属を供給するためのパイ
プを有し、前記パイプの先端が前記環状ビームの中空部
分の中心付近に位置して、前記パイプの先端から前記粉
末金属を供給するものとすることができる。Here, as the above-mentioned beam deforming means, as in the invention described in claim 2, the laser beam is deformed into a beam having an annular light intensity distribution in a cross section orthogonal to the traveling direction of the beam. It is possible to have means and means for deforming the beam deformed by this means into the annular beam in which the diameter of the hollow portion having no light intensity distribution is reduced as the beam advances. Further, as the above-mentioned powder metal supply means, as in the invention according to claim 3, there is a pipe for supplying the powder metal, and the tip of the pipe is near the center of the hollow portion of the annular beam. Positioned, the powder metal may be supplied from the tip of the pipe.
【０００９】請求項４に記載の発明は、請求項１ないし
３のいずれか１つに記載の溶接装置を用いて被溶接物の
溶接を行う溶接方法であって、前記中詰まりビームを前
記被溶接物に照射するとともに、前記環状ビームが前記
中詰まりビームに変化しつつあるところのビーム内に前
記粉末金属を供給して、前記被溶接物の溶接を行うこと
を特徴としている。A fourth aspect of the present invention is a welding method for welding an object to be welded by using the welding device according to any one of the first to third aspects, wherein The welding object is welded by irradiating the welding object and supplying the powder metal into the beam where the annular beam is changing to the closed beam.
【００１０】請求項５に記載の発明は、溶接された被溶
接物を有する物品の製造方法であって、請求項１ないし
３のいずれか１つに記載の溶接装置を用いて前記被溶接
物の溶接を行う溶接工程を有し、この溶接工程は、前記
中詰まりビームを前記被溶接物に照射するとともに、前
記環状ビームが前記中詰まりビームに変化しつつあると
ころのビーム内に前記粉末金属を供給して、前記被溶接
物の溶接を行うものであることを特徴としている。A fifth aspect of the present invention is a method for manufacturing an article having a welded object to be welded, wherein the object to be welded is produced by using the welding apparatus according to any one of the first to third aspects. The welding step of performing the welding of, wherein the welding beam irradiates the object to be welded with the light beam, and the powder metal in the beam where the annular beam is changing to the light beam. Is supplied to weld the object to be welded.
【００１１】[0011]
【発明の実施の形態】（第１実施形態）図１に、本発明
の第１実施形態に係る溶接装置の構成を示す。溶接装置
は、ビームガイドミラーをなす平面鏡１、円錐外面鏡
２、円錐内面鏡３、平面鏡４、ウインドー５、およびプ
リズム６を備えている。BEST MODE FOR CARRYING OUT THE INVENTION (First Embodiment) FIG. 1 shows the structure of a welding apparatus according to the first embodiment of the present invention. The welding apparatus includes a plane mirror 1 that forms a beam guide mirror, a cone outer surface mirror 2, a cone inner surface mirror 3, a plane mirror 4, a window 5, and a prism 6.
【００１２】平面鏡１は、レーザビーム（以下、単にビ
ームという）２１を貫通させるための開口部１ａを有し
ている。この平面鏡１は、ビーム２１の光軸とその開口
部１ａの中心とがおよそ一致するようにして、かつビー
ム２１の光軸に対し約４５度の角度を有するように配置
されている。The plane mirror 1 has an opening 1a for passing a laser beam (hereinafter, simply referred to as a beam) 21. The plane mirror 1 is arranged such that the optical axis of the beam 21 and the center of the opening 1a thereof are substantially coincident with each other and an angle of about 45 degrees with respect to the optical axis of the beam 21.
【００１３】円錐外面鏡２は、円錐の外面上に反射面を
有し、ビーム２１の光軸とその反射面の中心とが一致す
るように配置され、平面鏡１の開口部１ａを介して入射
したビーム２１を外周の全方向に反射する。円錐内面鏡
３は、円錐の内面状に反射面を有し、円錐外面鏡２で反
射されたビーム２１を反射する。この反射されたビーム
は、ビームの進行方向に直交する断面における光強度分
布が環状（この実施形態ではリング状）であるビーム２
２となる。これら円錐外面鏡２、円錐内面鏡３は、ビー
ム２１を、ビームの進行方向に直交する断面における光
強度分布が環状であるビームに変形する手段を構成して
いる。The conical outer mirror 2 has a reflecting surface on the outer surface of the cone, is arranged so that the optical axis of the beam 21 and the center of the reflecting surface thereof coincide with each other, and is incident through the opening 1a of the plane mirror 1. The reflected beam 21 is reflected in all directions on the outer circumference. The conical inner mirror 3 has a reflecting surface on the inner surface of the cone, and reflects the beam 21 reflected by the conical outer mirror 2. The reflected beam 2 is a beam 2 having a ring-shaped (ring-shaped in this embodiment) light intensity distribution in a cross section orthogonal to the beam traveling direction.
It becomes 2. The conical outer mirror 2 and the conical inner mirror 3 constitute means for transforming the beam 21 into a beam having an annular light intensity distribution in a cross section orthogonal to the traveling direction of the beam.
【００１４】ビーム２２は、ビーム２１と同軸状に形成
され、かつビーム２１と反対方向に伝搬する。平面鏡１
は、その開口部１ａの周囲でビーム２２を反射する。The beam 22 is formed coaxially with the beam 21, and propagates in a direction opposite to the beam 21. Plane mirror 1
Reflects the beam 22 around its opening 1a.
【００１５】平面鏡４は、平面鏡１で反射されたビーム
２２を反射するもので、ビーム２２の光軸に対し４５度
の角度を有するように配置されている。ウインドー５
は、平面鏡４で反射されたビーム２２を通過させる。プ
リズム６は、ウインドー５を通過したビーム２２を、ビ
ームの進行に伴って光強度分布を持たない中空部分の径
が縮小するビーム２３に変形する。このビーム２３は、
その後、その中空部分の径の縮小によって光強度を中心
に有する中詰まりビーム２４に変化する。The plane mirror 4 reflects the beam 22 reflected by the plane mirror 1, and is arranged so as to have an angle of 45 degrees with respect to the optical axis of the beam 22. Window 5
Passes the beam 22 reflected by the plane mirror 4. The prism 6 transforms the beam 22 that has passed through the window 5 into a beam 23 in which the diameter of the hollow portion having no light intensity distribution is reduced as the beam advances. This beam 23
After that, the diameter of the hollow portion is reduced, so that the beam 24 is changed to a solid beam 24 having a light intensity at its center.
【００１６】上記したミラー等の構成物１〜８は、ビー
ム２１を、ビームの進行に伴って光強度分布を持たない
中空部分の径が縮小する環状ビーム２３に変形するビー
ム変形手段を構成している。The above-mentioned components 1 to 8 such as mirrors constitute a beam deforming means for deforming the beam 21 into an annular beam 23 in which the diameter of the hollow portion having no light intensity distribution is reduced as the beam advances. ing.
【００１７】本実施形態の溶接装置は、さらに粉末金属
供給手段を構成する粉末金属タンク７およびパイプ８を
備えている。粉末金属タンク７は、内部にて粉末金属を
保持するもので、ウインドー５の上面に設置されてい
る。パイプ８は、粉末金属タンク７に備え付けられ、ウ
インドー５に設けられた開口部５ａ、プリズム６に設け
られた開口部６ａを貫通して配置されている。パイプ８
の先端（粉末金属出射口）は、環状ビーム２３と干渉し
ない位置で、かつビーム２３の光軸（すなわち光強度分
布を持たない中空部分の中心）付近に位置している。そ
して、パイプ８の先端から、ビーム２３を遮ることなく
ビーム２３が中詰まりビーム２４に変化しつつあるとこ
ろのビーム内に、粉末金属が供給される。なお、パイプ
８には、遠隔操作によって粉末金属の供給を制御するた
めの無線式電磁バルブ８ａが設けられており、そのバル
ブ８ａを開くことによって粉末金属が供給される。The welding apparatus of this embodiment further includes a powder metal tank 7 and a pipe 8 which constitute powder metal supply means. The powder metal tank 7 holds powder metal inside, and is installed on the upper surface of the window 5. The pipe 8 is provided in the powder metal tank 7, and is arranged so as to pass through the opening 5 a provided in the window 5 and the opening 6 a provided in the prism 6. Pipe 8
Is located at a position where it does not interfere with the annular beam 23 and near the optical axis of the beam 23 (that is, the center of the hollow portion having no light intensity distribution). Then, the powder metal is supplied from the tip of the pipe 8 into the beam where the beam 23 is being clogged into the beam 24 without blocking the beam 23. The pipe 8 is provided with a wireless electromagnetic valve 8a for controlling the supply of powder metal by remote control, and the powder metal is supplied by opening the valve 8a.
【００１８】次に、上記した溶接装置を用いた溶接方法
について、エンジンバルブ１０の当たり面（以下、バル
ブフェースという）に溶接金属層１０ａを形成する方法
を例にとって説明する。Next, a welding method using the above-mentioned welding apparatus will be described by taking a method of forming the weld metal layer 10a on the contact surface of the engine valve 10 (hereinafter referred to as a valve face) as an example.
【００１９】レーザ発振器から出射されたビーム２１
は、平面鏡１の開口部１ａを介して円錐外面鏡２に入射
し、円錐外面鏡２によってその円錐軸と垂直な平面と平
行に全方位に亘りプレート状に反射される。この円錐外
面鏡２で反射されたビーム２１は、円錐内面鏡３で反射
され、環状のビーム２２となる。このビーム２２は、平
面鏡１および平面鏡４で反射され、そしてウインドー５
を通過する。ウインドー５を通過したビーム２２は、プ
リズム６により、ビームの進行に伴って、光強度分布を
持たない中空部分の径が縮小するビーム２３に変形され
る。そして、ビーム２３が加工に適した光強度を中心に
有する中詰まりビーム２４になったところで、中詰まり
ビーム２４をエンジンバルブ１０のバルブフェースに照
射する。Beam 21 emitted from the laser oscillator
Enters the conical outer mirror 2 through the opening 1a of the plane mirror 1 and is reflected by the conical outer mirror 2 in a plate shape in all directions parallel to a plane perpendicular to the cone axis. The beam 21 reflected by the conical outer mirror 2 is reflected by the conical inner mirror 3 to become an annular beam 22. This beam 22 is reflected by plane mirror 1 and plane mirror 4, and window 5
Pass through. The beam 22 that has passed through the window 5 is transformed by the prism 6 into a beam 23 in which the diameter of the hollow portion having no light intensity distribution is reduced as the beam advances. Then, when the beam 23 becomes the inside-clogged beam 24 having a light intensity suitable for processing at the center, the inside-clogged beam 24 is irradiated to the valve face of the engine valve 10.
【００２０】また、この溶接を行うにあたり、無線式電
磁バルブ８ａを開状態として、粉末金属タンク７からパ
イプ８を介して粉末金属を供給する。このとき、パイプ
８の先端は、ビーム２３と干渉しない位置にあるので、
パイプ８の先端から、ビーム２３が中詰まりビーム２４
に変化しつつあるところのビーム内に粉末金属が供給さ
れる。このため、粉末金属のほとんどは、ビームによっ
て溶融または溶融過程にある半液体状態でバルブフェー
スに供給されることになる。そして、エンジンバルブ１
０を回転させることにより、バルブフェースに溶接金属
層（肉盛溶接部）１０ａを形成することができる。In performing this welding, the wireless electromagnetic valve 8a is opened and the powder metal is supplied from the powder metal tank 7 through the pipe 8. At this time, since the tip of the pipe 8 is in a position where it does not interfere with the beam 23,
Beam 23 is clogged from the tip of pipe 8
Powder metal is fed into the beam, which is changing to As a result, most of the powdered metal will be delivered by the beam to the valve face in the molten or semi-liquid state in the process of melting. And engine valve 1
By rotating 0, the weld metal layer (buildup weld portion) 10a can be formed on the valve face.
【００２１】このように本実施形態では、バルブフェー
ス上にある粉末金属を溶融するのではなく、バルブフェ
ース上に溶融過程状態である半液状金属を粉末的に供給
することができるため、バルブフェース母材への熱的損
傷が低減でき、さらに液状金属の拡散と加熱により、バ
ルブフェースに内部欠陥の無い緻密な肉盛溶接部１０ａ
を形成することができる。
（第２実施形態）図２に、本発明の第２実施形態に係る
溶接装置の構成を示す。この第２実施形態では、第１実
施形態で示したウインドー５を用いない構成となってい
る。このため、平面鏡４の中心付近に開口部４ａを形成
し、平面鏡４の背面より、粉末金属を供給するパイプ８
を挿入した構成となっている。そして、粉末金属タンク
７は、ビームの伝搬路の外部において、機械加工部品な
どにより支持（保持）されている。なお、図２には図示
していないが、この実施形態においても、バルブによっ
て粉末金属の供給を行うようになっている。但し、この
実施形態では、第１実施形態のようにバルブの周りが全
て光で覆われているわけではないので、バルブとして
は、第１実施形態のような無線式のものを用いる必要は
ない。As described above, in this embodiment, the powder metal on the valve face is not melted, but the semi-liquid metal in the melting process state can be supplied in powder form on the valve face. The thermal damage to the base material can be reduced, and the liquid metal is diffused and heated, so that the valve face has no internal defects and a dense weld overlay 10a.
Can be formed. (Second Embodiment) FIG. 2 shows the structure of a welding apparatus according to the second embodiment of the present invention. In the second embodiment, the window 5 shown in the first embodiment is not used. For this reason, an opening 4a is formed near the center of the plane mirror 4, and a pipe 8 for supplying powder metal from the rear surface of the plane mirror 4 is formed.
Has been inserted. The powder metal tank 7 is supported (held) by a machined component or the like outside the beam propagation path. Although not shown in FIG. 2, powder metal is also supplied by a valve in this embodiment. However, in this embodiment, since the surroundings of the bulb are not all covered with light as in the first embodiment, it is not necessary to use a wireless valve as in the first embodiment. .
【００２２】このようにこの実施形態によれば、粉末金
属タンク７を設置するための光学部品を必要とせずに溶
接装置を構成することができる。但し、この実施形態で
は、ビーム２２が平面鏡４で反射される直前で、パイプ
８によりそのパイプ幅だけビーム２２が遮られるため、
加工に奇与するビーム出力の多大な損失にならないよう
にビーム２２の環外形を適宜に拡大しておくなどの配慮
が必要である。
（その他の実施形態）上記した実施形態では、環状のビ
ームとしてリング状のビームとするものを示したが、リ
ング状でなく矩形等の環状のビームとしてもよい。As described above, according to this embodiment, the welding apparatus can be constructed without the need for an optical component for installing the powder metal tank 7. However, in this embodiment, since the beam 22 is blocked by the pipe width by the pipe 8 immediately before the beam 22 is reflected by the plane mirror 4,
It is necessary to take appropriate measures such as appropriately enlarging the outer shape of the ring of the beam 22 so as not to cause a large loss of beam output that may be given to the processing. (Other Embodiments) In the above-described embodiments, the ring-shaped beam is shown as the ring-shaped beam, but a ring-shaped beam having a rectangular shape or the like may be used instead of the ring-shaped beam.
【００２３】また、ビーム２１を、ビームの進行に伴っ
て光強度分布を持たない中空部分の径が縮小する環状ビ
ーム２３に変形するビーム変形手段としては、図１ある
いは図２に示す構成のものに限らず他の構成のものでと
してもよい。例えば、ビーム２１を、ビームの進行方向
に直交する断面における光強度分布が環状であるビーム
に一旦変形することなく、ビーム２１を、ビームの進行
に伴って光強度分布を持たない中空部分の径が縮小する
環状ビームに直接変形するような光学手段の組み合わせ
構成としてもよい。Further, as the beam deforming means for deforming the beam 21 into an annular beam 23 in which the diameter of the hollow portion having no light intensity distribution is reduced as the beam advances, one having the configuration shown in FIG. 1 or FIG. The configuration is not limited to this, and may have another configuration. For example, the beam 21 is not transformed into a beam having a circular light intensity distribution in a cross section orthogonal to the beam traveling direction, and the beam 21 is formed into a hollow portion having no light intensity distribution as the beam travels. It is also possible to adopt a combined configuration of optical means that directly deforms into an annular beam that contracts.
【００２４】また、上記した実施形態では、プリズム６
を用いて中空部分の径を縮小するものを示したが、プリ
ズム６の代わりに、レンズの中心付近に穴を開けた光学
部品を用いても同様に行うことができる。このようにレ
ンズを用いた場合には、環状ビームの帯幅をも変化さ
せ、さらに中空部分の径を縮小することができる。Further, in the above embodiment, the prism 6
Although the diameter of the hollow portion is reduced by using, the same operation can be performed by using an optical component having a hole near the center of the lens instead of the prism 6. When the lens is used as described above, the band width of the annular beam can be changed and the diameter of the hollow portion can be reduced.
【００２５】また、溶接を行う対象となる被溶接物とし
ては、上記したエンジンバルブに限らず、シリンダライ
ナなど種々の被溶接物を対象とすることができ、その場
合、溶接としては、上記したような肉盛溶接に限らず、
母材と粉末金属が溶け込むような溶接であってもよい。Further, the object to be welded is not limited to the engine valve described above, but various objects to be welded such as a cylinder liner can be used. Not limited to such overlay welding,
The welding may be such that the base material and the powder metal melt.
【００２６】なお、上記した実施形態で示した溶接方法
は、溶接された被溶接物を有する物品の製造方法におけ
る溶接工程として用いることができる。The welding method shown in the above embodiment can be used as a welding step in a method of manufacturing an article having a welded object.
【図１】本発明の第１実施形態に係る溶接装置の構成を
示す図である。FIG. 1 is a diagram showing a configuration of a welding device according to a first embodiment of the present invention.
【図２】本発明の第２実施形態に係る溶接装置の構成を
示す図である。FIG. 2 is a diagram showing a configuration of a welding device according to a second embodiment of the present invention.
１…平面鏡、２…円錐外面鏡、３…円錐内面鏡、４…平
面鏡、５…ウインドー、６…プリズム、７…粉末金属タ
ンク、８…パイプ、１０…エンジンバルブ。DESCRIPTION OF SYMBOLS 1 ... Plane mirror, 2 ... Cone outside mirror, 3 ... Cone inside mirror, 4 ... Plane mirror, 5 ... Window, 6 ... Prism, 7 ... Powder metal tank, 8 ... Pipe, 10 ... Engine valve.
Claims (5)
置において、 レーザビームを、ビームの進行に伴って光強度分布を持
たない中空部分の径が縮小する環状ビームに変形するビ
ーム変形手段と、 前記環状ビームがその中空部分の径の縮小によって光強
度を中心に有する中詰まりビームに変化しつつあるとこ
ろのビーム内に粉末金属を供給する粉末金属供給手段
と、を備えたことを特徴とする溶接装置。1. A welding device for welding using a laser beam, the beam deforming means deforming the laser beam into an annular beam in which a diameter of a hollow portion having no light intensity distribution is reduced as the beam advances, The annular beam is provided with a powder metal supply means for supplying powder metal into the beam where the beam is being changed to a solid beam having a light intensity at its center due to the reduction of the diameter of the hollow portion. Welding equipment.
ムを、ビームの進行方向に直交する断面における光強度
分布が環状であるビームに変形する手段と、この手段に
よって変形されたビームを、ビームの進行に伴って光強
度分布を持たない中空部分の径が縮小する前記環状ビー
ムに変形する手段と、を有することを特徴とする請求項
１に記載の溶接装置。2. The beam transforming means transforms the laser beam into a beam having an annular light intensity distribution in a cross section orthogonal to the traveling direction of the laser beam, and the beam transformed by the means. The welding apparatus according to claim 1, further comprising: a unit that deforms into the annular beam in which a diameter of a hollow portion having no light intensity distribution is reduced with progress.
を供給するためのパイプを有し、前記パイプの先端が前
記環状ビームの中空部分の中心付近に位置して、前記パ
イプの先端から前記粉末金属を供給するようになってい
ることを特徴とする請求項１または２に記載の溶接装
置。3. The powder metal supply means has a pipe for supplying the powder metal, the tip of the pipe is located near the center of the hollow portion of the annular beam, and the pipe is connected to the tip of the pipe. The welding apparatus according to claim 1 or 2, wherein powder metal is supplied.
の溶接装置を用いて被溶接物の溶接を行う溶接方法であ
って、 前記中詰まりビームを前記被溶接物に照射するととも
に、前記環状ビームが前記中詰まりビームに変化しつつ
あるところのビーム内に前記粉末金属を供給して、前記
被溶接物の溶接を行うことを特徴とする溶接方法。4. A welding method for welding an object to be welded by using the welding device according to claim 1, wherein the object to be welded is irradiated with the inside-clogged beam, A welding method, wherein the powder metal is supplied into the beam where the annular beam is changing to the solid beam, and the object to be welded is welded.
方法であって、請求項１ないし３のいずれか１つに記載
の溶接装置を用いて前記被溶接物の溶接を行う溶接工程
を有し、 この溶接工程は、前記中詰まりビームを前記被溶接物に
照射するとともに、前記環状ビームが前記中詰まりビー
ムに変化しつつあるところのビーム内に前記粉末金属を
供給して、前記被溶接物の溶接を行うものであることを
特徴とする、溶接された被溶接物を有する物品の製造方
法。5. A method of manufacturing an article having a welded object to be welded, comprising a welding step of welding the object to be welded using the welding apparatus according to claim 1. This welding step includes irradiating the object to be welded with the light beam having the inner clogging, and supplying the powder metal into the beam where the annular beam is changing to the beam having the medium clogging so as to obtain the object to be welded. A method for manufacturing an article having a welded object, wherein the article is welded.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002072346A JP4161598B2 (en) | 2002-03-15 | 2002-03-15 | Welding apparatus, welding method, and manufacturing method of article having welded workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002072346A JP4161598B2 (en) | 2002-03-15 | 2002-03-15 | Welding apparatus, welding method, and manufacturing method of article having welded workpiece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003266189A true JP2003266189A (en) | 2003-09-24 |
| JP4161598B2 JP4161598B2 (en) | 2008-10-08 |
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ID=29202370
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|---|---|---|---|
| JP2002072346A Expired - Fee Related JP4161598B2 (en) | 2002-03-15 | 2002-03-15 | Welding apparatus, welding method, and manufacturing method of article having welded workpiece |
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| Country | Link |
|---|---|
| JP (1) | JP4161598B2 (en) |
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| JP2014520281A (en) * | 2011-05-25 | 2014-08-21 | カール ツァイス レーザー オプティックス ゲゼルシャフト ミット ベシュレンクテル ハフツング | Optical arrangement for converting an incident light beam, method for converting a light beam into line focus, and optical device therefor |
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| WO2018181334A1 (en) * | 2017-03-31 | 2018-10-04 | 株式会社ニコン | Modeling system and modeling method |
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| JP2021000825A (en) * | 2019-06-24 | 2021-01-07 | ▲華▼中科技大学Ｈｕａｚｈｏｎｇ Ｕｎｉｖｅｒｓｉｔｙ Ｏｆ Ｓｃｉｅｎｃｅ Ａｎｄ Ｔｅｃｈｎｏｌｏｇｙ | Lamination molding method and device suitable for ceramic and its composite material |
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