JPH03275288A - Build-up welding method for repair - Google Patents
Build-up welding method for repairInfo
- Publication number
- JPH03275288A JPH03275288A JP2073210A JP7321090A JPH03275288A JP H03275288 A JPH03275288 A JP H03275288A JP 2073210 A JP2073210 A JP 2073210A JP 7321090 A JP7321090 A JP 7321090A JP H03275288 A JPH03275288 A JP H03275288A
- Authority
- JP
- Japan
- Prior art keywords
- repair
- build
- overlay
- layer
- repaired
- 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
- 238000000034 method Methods 0.000 title claims description 21
- 238000003466 welding Methods 0.000 title abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 27
- 239000000843 powder Substances 0.000 claims abstract description 22
- 230000007547 defect Effects 0.000 claims abstract description 16
- 230000001678 irradiating effect Effects 0.000 claims abstract description 5
- 238000005336 cracking Methods 0.000 abstract description 8
- 238000010790 dilution Methods 0.000 abstract description 7
- 239000012895 dilution Substances 0.000 abstract description 7
- 230000002950 deficient Effects 0.000 abstract description 5
- 239000010953 base metal Substances 0.000 abstract description 2
- 239000002184 metal Substances 0.000 description 10
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 229910001347 Stellite Inorganic materials 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- AHICWQREWHDHHF-UHFFFAOYSA-N chromium;cobalt;iron;manganese;methane;molybdenum;nickel;silicon;tungsten Chemical compound C.[Si].[Cr].[Mn].[Fe].[Co].[Ni].[Mo].[W] AHICWQREWHDHHF-UHFFFAOYSA-N 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 229910001105 martensitic stainless steel Inorganic materials 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 229910001119 inconels 625 Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- SBIBMFFZSBJNJF-UHFFFAOYSA-N selenium;zinc Chemical compound [Se]=[Zn] SBIBMFFZSBJNJF-UHFFFAOYSA-N 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）
本発明は粉末材料を供給しつつ、レーザビームを照射す
ることによって表面改質層を補修加工する肉盛補修方法
に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to an overlay repair method in which a surface modified layer is repaired by supplying a powder material and irradiating a surface modified layer with a laser beam.
（従来の技術）
一般に、摺動面の耐摩耗性等を向上させるために、摺動
面に耐摩耗性金属を肉盛することが行われている。その
肉盛層に欠陥発生等の原因によって補修が必要な場合、
従来では第７図および第８図に示す方法によって補修肉
盛が行われていた。(Prior Art) Generally, in order to improve the wear resistance of a sliding surface, a wear-resistant metal is deposited on the sliding surface. If repair is required due to defects in the overlay layer,
Conventionally, repair overlay has been performed by the method shown in FIGS. 7 and 8.
すなわち、第７図はティグ（Ｔ Ｉ Ｇ）溶接による金
属肉盛補修方法を示し、この肉盛補修方法は基材Ｗ表面
の補修すべき肉盛部分にＴ Ｉ Ｇ （Ｔｕｎｇｓｔｅ
ｎ Ｉｎｅｒｔ Ｇａ３）用トーチ１からアークを発生
させ、このアーク中に溶加棒２を挿入し、これを溶融さ
せて金属肉盛層を形成し、肉盛部品の補修を行っている
。ここで言う補修とはブローホール、クレータ割れ、融
合不良等の欠陥が発生した場合の処理を示し、前処理を
して欠陥周辺の除去加工を必要とすることである。That is, FIG. 7 shows a metal overlay repair method using TIG welding, and this overlay repair method uses TIG (Tungste
An arc is generated from a torch 1 for Inert Ga3), a filler rod 2 is inserted into the arc, and the filler rod 2 is melted to form a metal build-up layer, thereby repairing the build-up part. Repair here refers to treatment when defects such as blowholes, crater cracks, and poor fusion occur, and requires pretreatment to remove the area around the defects.
第８図はプラズマ粉体肉盛法（以下、ＰＴＡという）に
よる補修方法を示し、この肉盛補修方法は電極３と水冷
されているチップ４およびノズル５とからなるトーチ６
を用い、電極３とチップ４との間に電極３がプラス極、
チップ４がマイナス極となるパイロット電源ＰＳ王を接
続し、これによって発生するアークを例えばアルゴン（
Ａｒ）やヘリウム（Ｈｅ）等不活性ガスのプラズマガス
を用いてプラズマアークにする。次に、電極３と基材Ｗ
との間に、電極３がプラス極、基材Ｗがマイナス極とな
る主電源ＰＳ２を介して溶接電流を流し、水冷されてい
るチップ４によりプラズマ熱源を安定させる一方、粉末
材料をＡ ｒ、 ＣＯ２。FIG. 8 shows a repair method using the plasma powder build-up method (hereinafter referred to as PTA).
between the electrode 3 and the chip 4, with the electrode 3 being the positive pole,
Chip 4 connects the pilot power supply PS king with the negative pole, and the arc generated by this is connected to, for example, argon (
A plasma arc is created using an inert plasma gas such as Ar) or helium (He). Next, the electrode 3 and the base material W
A welding current is passed through the main power supply PS2 in which the electrode 3 is the positive pole and the base material W is the negative pole, and the water-cooled tip 4 stabilizes the plasma heat source, while the powder material is CO2.
Ｈｅ等のキャリアガス中に投入して溶融させ、シールド
ガスの雰囲気下で基材Ｗ上の補修すべき肉盛部分７に金
属肉盛層を形成しようとしたものである。なお、ＰＴＡ
も第７図に示すＴＩＧ溶接と同様に除去加工を必要とす
る。This is an attempt to form a metal build-up layer on the build-up portion 7 to be repaired on the base material W by putting it into a carrier gas such as He and melting it, in an atmosphere of shielding gas. In addition, PTA
Also, similar to TIG welding shown in FIG. 7, removal processing is required.
（発明が解決しようとする課題）
しかしながら、従来の補修方法であるＴＩＧ溶接やＰＴ
Ａによる肉盛補修方法では予熱なしで実施しようとする
と、パワー密度が不十分なため、大入熱が必要となり、
その結果、本来不要な基祠（母材）への熱影響が過大と
なり、基材が変形の発生に至ることとなったり、補修部
分である肉盛金属に割れが発生する確率が高くなる。ま
た、割れ感受性の高い飼料、例えばマルテンサイト系ス
テンレス鋼を基材にした肉盛補修の場合では、熱影響部
が硬化して割れが発生してしまうことがある。(Problem to be solved by the invention) However, conventional repair methods such as TIG welding and PT
If you attempt to perform overlay repair method A without preheating, the power density will be insufficient and a large heat input will be required.
As a result, the originally unnecessary thermal influence on the base metal (base material) becomes excessive, leading to deformation of the base material, and increasing the probability that cracks will occur in the overlay metal that is the repaired part. In addition, in the case of overlay repair using feed that is highly susceptible to cracking, such as martensitic stainless steel, the heat-affected zone may harden and cracks may occur.
すなわち、ＴＩＧ溶接やＰＴＡによる肉盛補修方法では
、補修のために必要なエネルギーを１９Ｍしようとする
と、投与時間が長くなり、その間に与えているエネルギ
ーは熱拡散を進行するため、結果的に大量のエネルギー
投与を要してしまい、熱拡散分のエネルギーは熱変形、
硬化、割れ等を発生させる問題がある。In other words, in the overlay repair method using TIG welding or PTA, if the energy required for repair is 19M, the administration time becomes long, and the energy applied during that time progresses through thermal diffusion, resulting in a large amount of energy being applied. energy is required, and the energy for thermal diffusion is used for thermal deformation,
There are problems with hardening, cracking, etc.
第９図にマルテンサイト系ステンレス鋼を母材として、
ＰＴＡでステライト＃６を補修肉盛した場合の硬さ分布
曲線Ａを示す。この図より明らかなように、ビッカース
硬さＨｖが６００を越える界面近傍Ｂては熱影響によっ
て母材が過度に硬化し、この結果母材に割れが発生して
いることがわかる。これらの割れを防止するため、基材
（母相）を約４００〜５００℃に予熱して肉盛補修溶接
を行うことも一般に行われているが、仕上げ加工済て肉
盛層が薄い場合、この予熱のため母相の希釈か大きくな
り、補修した肉盛部の硬さが低下して所望の値（Ｈｖ４
００以上）を示さない（領域Ｃ）ことがある。Figure 9 shows martensitic stainless steel as the base material.
Hardness distribution curve A is shown when Stellite #6 is repaired and overlaid with PTA. As is clear from this figure, near the interface B where the Vickers hardness Hv exceeds 600, the base material is excessively hardened due to thermal influence, and as a result, cracks occur in the base material. In order to prevent these cracks, it is common practice to preheat the base material (matrix) to approximately 400 to 500°C and perform overlay repair welding, but if the overlay layer is thin after finishing, Due to this preheating, the dilution of the matrix increases, and the hardness of the repaired overlay area decreases to the desired value (Hv4
00 or more) may not be indicated (area C).
また、割れ感受性の高い材料（例えば高温高強度飼料）
では予熱のため基材が軟化して本来の強度を維持できな
い場合もある。Also, materials that are sensitive to cracking (e.g. high-temperature, high-strength feed)
In some cases, the base material softens due to preheating and cannot maintain its original strength.
そこで、本発明は上記事情を考慮してなされたもので、
その目的とするところは、予熱および欠陥部付近の除去
加工を必要とせず、補修した肉盛層の希釈や割れ、部品
の変形を抑え、所望の肉盛層硬さを得ることのできる肉
盛補修方法を提供することにある。Therefore, the present invention has been made in consideration of the above circumstances.
The purpose of this is to avoid dilution and cracking of the repaired build-up layer, prevent deformation of the part, and achieve the desired hardness of the build-up layer without requiring preheating or removal processing near the defective area. The purpose is to provide a repair method.
（課題を解決するための手段）
上記の目的を達成するために、本発明に係る肉盛補修方
法にあっては、欠陥の発生した肉盛層表面に、レーザ光
を照射するとともに、粉末材料を供給しつつ補修肉盛を
行うことを特徴とする。(Means for Solving the Problems) In order to achieve the above object, in the overlay repair method according to the present invention, the surface of the overlay layer where the defect has occurred is irradiated with a laser beam, and a powder material is It is characterized by performing repair overlay while supplying.
（作用）
」１記の構成を有する本発明においては、欠陥の発生し
た肉盛層表面にパワー密度の十分に高いレーザ光を照射
することにより、供給された肉盛用粉末と欠陥の発生し
た肉盛層とがごく短時間に溶融されて補修肉盛層が生成
されるので、除去加工および予熱を必要とせず、希釈お
よび割れを抑制した高品質な金属肉盛層が得られる。(Function) In the present invention having the configuration described in item 1, by irradiating the surface of the build-up layer where the defect has occurred with a laser beam of sufficiently high power density, the supplied overlay powder and the surface of the build-up layer where the defect has occurred are separated. Since the metal build-up layer is melted in a very short time and a repair build-up layer is generated, a high-quality metal build-up layer that suppresses dilution and cracking can be obtained without requiring removal processing or preheating.
また、欠陥形状（点状、線状）や発生した位置（肉盛層
内、表面上）に応じて、レーザ光のパワー密度および照
射時間を制御できるので、大型部品に発生した複数の欠
陥部を健全な状態に補修することができる。In addition, the power density and irradiation time of the laser beam can be controlled according to the defect shape (dot-like, linear) and the location (inside the overlay layer, on the surface) of the defect, so it is possible to control multiple defects that occur in large parts. can be repaired to a healthy condition.
（実施例）
以下、本発明に係る肉盛補修方法の実施例を図面に基づ
いて説明する。(Example) Hereinafter, an example of the overlay repair method according to the present invention will be described based on the drawings.
第１図は本発明に係る補修肉盛方法を実行するための補
修装置の一実施例を示し、この肉盛補修装置は大出力の
炭酸ガス（Ｃ０２）レーザ発振器等のレーザ装置１０と
、発振されたレーザ光１０ａを集光するための集光レン
ズ１１と、例えばＣＯ基合金であるステライト＃６等の
肉盛用粉末１２を供給するための粉末供給装置１３と、
母材としての基祠Ｗを回転移動させるための回転装置１
４と、金属蒸気等を吹き飛ばす、例えばエアまたはＮ２
ガス供給部１５とから構成されている。FIG. 1 shows an embodiment of a repair device for carrying out the repair overlay method according to the present invention. a condenser lens 11 for condensing the laser beam 10a; a powder supply device 13 for supplying overlay powder 12 such as Stellite #6, which is a CO-based alloy;
Rotating device 1 for rotating and moving the base shrine W as a base material
4 and blow off metal vapor, such as air or N2
It is composed of a gas supply section 15.
本実施例の作用を説明する。The operation of this embodiment will be explained.
第１−図に示すように、レーザ装置１０から発振された
レーザ光１０ａを集光レンズ１」を通して焦点を上方に
ずらした状態で、斜線部に示す欠陥発生部］６に一定時
間照射すると同時に、その欠陥発生部１６付近に粉末供
給装置１３から肉盛用粉末１−２を供給する。なお、レ
ーザ光１０ａを照射する前に肉盛用粉末１２を供給して
もよい。また、補修すべき部品は仕上げ加工前でも加工
後でもよい。As shown in Fig. 1, the laser beam 10a oscillated from the laser device 10 is passed through the condenser lens 1'' and its focus is shifted upward, and at the same time the defect occurrence area shown in the shaded area is irradiated for a certain period of time. , the overlay powder 1 - 2 is supplied from the powder supply device 13 to the vicinity of the defect occurrence area 16 . Note that the overlay powder 12 may be supplied before irradiating the laser beam 10a. Furthermore, the parts to be repaired may be repaired before or after finishing processing.
次に、第１図の補修装置を用いて肉盛補修を行なった場
合実験例について説明する。肉盛補修条件は下記のよう
に設定されている。Next, an experimental example in which overlay repair is performed using the repair apparatus shown in FIG. 1 will be described. The overlay repair conditions are set as follows.
基材・ステンレス鋼 既に肉盛された材料ニステライト＃６（Ｃ。Base material/stainless steel Already overlaid material Nysterite #6 (C.
基合金）またはインコネル６２５（Ｎｌ基合金）補修用
に供給する肉盛材料 ステライト＃６（Ｃｏ基合金）ま
たはインコネル６２５（Ｎｉ基合金）
レーザ出力（炭酸ガスレーザ装置）
： ６〜１０ＫＷ
集光レンズ焦点距離・２５４ｍｍまたは３８１ｍｍ基材
Ｗ上のビーム径：２〜１０ｍｍ
ビーム照射時間： ０．５〜５．０ｓｅｃ予熱：なし
第２図は肉盛条件の詳細を示し、レーザパワー密度〔−
レーザ出力／π／４（ビーム径）２〕が５０ＫＷ／ ｃ
ｎｆ以上では金属蒸気の発生が激しく、プラズマが発生
し、補修肉盛が中断する。逆に５ＫＷ／ｃａｒ以下では
クレータ部に割れが生じてしまう。また、レーザ照射時
間が５．０ｓｅｃ以上では補修した肉盛層の希釈が大き
くなり、肉盛層硬さが低下する。Overlay material supplied for repair Stellite #6 (Co-based alloy) or Inconel 625 (Ni-based alloy) Laser output (carbon dioxide laser device): 6 to 10 KW Condenser lens focus Distance: 254 mm or 381 mm Beam diameter on base material W: 2 to 10 mm Beam irradiation time: 0.5 to 5.0 sec Preheating: None Figure 2 shows the details of the build-up conditions, and the laser power density [-
Laser output/π/4 (beam diameter) 2] is 50KW/c
At nf or more, metal vapor is generated intensely, plasma is generated, and repair overlay is interrupted. On the other hand, if the power is less than 5KW/car, cracks will occur in the crater portion. Further, if the laser irradiation time is 5.0 seconds or more, the dilution of the repaired overlay layer becomes large and the hardness of the overlay layer decreases.
上記の肉盛条件によって、補修された肉盛層１７の硬さ
分布を第３図および第４図に示す。第３図から明らかな
ように、既に肉盛されていた層と補修した肉盛層は、境
界層付近で硬さが連続的であり健全に補修されたことが
わかる。また、補修後の硬さ分布を示す第４図を従来の
補修方法で補修した第９図と比較するとわかるように、
本実施例によれば、母材の硬化が十分に小さく、ステラ
イト＃６の補修した肉盛層の希釈に伴う硬さの低下も著
しく小さい。これはレーザ光によって補修した肉盛層お
よび基材（マルテンザイト系ステンレス鋼）への投与エ
ネルギーがＰＴＡに比べ十分に小さく制御できるからで
ある。すなわち、本実施例ではレーザのパワー密度が十
分高く設定できるので、補修のために必要なエネルギー
を投与する際に短時間のビーム照射で必要十分なエネル
ギーが得られる。The hardness distribution of the built-up layer 17 repaired under the above-mentioned build-up conditions is shown in FIGS. 3 and 4. As is clear from FIG. 3, the hardness of the layer that had already been built up and the repaired built-up layer was continuous near the boundary layer, indicating that the repair was sound. In addition, as can be seen by comparing Figure 4, which shows the hardness distribution after repair, with Figure 9, which shows the hardness distribution after repair using the conventional repair method,
According to this example, the hardening of the base material is sufficiently small, and the decrease in hardness due to dilution of the repaired overlay layer of Stellite #6 is also extremely small. This is because the energy administered to the overlay layer and base material (martenzite stainless steel) repaired by laser light can be controlled to be sufficiently smaller than in PTA. That is, in this embodiment, the power density of the laser can be set sufficiently high, so that when administering the energy necessary for repair, sufficient energy can be obtained with short-time beam irradiation.
このように本実施例によれば、予熱および欠陥部付近の
除去加工を必要とせず、補修した肉盛層や母相の割れを
防止して、少ない投与エネルギーで希釈の少ない補修肉
盛層を形成することができるので、熱変形を極度に抑え
ることができる。また、欠陥の位置、形状に関係なく、
投与エネルギーを制御して補修することができる。As described above, according to this embodiment, there is no need for preheating or removal processing near the defective part, and cracking of the repaired overlay layer or matrix can be prevented, and the repaired overlay layer can be formed with less dilution with less administered energy. Therefore, thermal deformation can be extremely suppressed. In addition, regardless of the location or shape of the defect,
The administered energy can be controlled and repaired.
第５図および第６図は本発明の他の実施例を示し、前記
実施例と同一の部材には同一の符号を付して説明する。5 and 6 show another embodiment of the present invention, and the same members as in the previous embodiment are given the same reference numerals and will be described.
第５図では集光レンズ１１の代わりに凸面鏡１８と凹面
鏡１９とからなるカセグレンミラー２０を配置している
。また、第６図は同じくセグメントミラー２１を配置し
ている。このようなミラー２０，２↓を用いても前記実
施例と同一の効果が得られる。その他の構成および作用
は前記実施例と同一であるのでその説明を省略する。In FIG. 5, a Cassegrain mirror 20 consisting of a convex mirror 18 and a concave mirror 19 is arranged in place of the condensing lens 11. Further, in FIG. 6, a segment mirror 21 is similarly arranged. Even if such mirrors 20, 2↓ are used, the same effect as in the embodiment described above can be obtained. The other configurations and operations are the same as those of the previous embodiment, so their explanation will be omitted.
なお、本発明は上記実施例に限らず種々の変形が可能で
ある。例えば、上記実施例において集光レンズ１１は一
般にその祠料がｚｎＳｅやＫｃｌに限定され、使用寿命
は数か月程度であるが、これに対して金属製のミラーと
すれば、再研磨により半永久的に使用するこ、とができ
る。Note that the present invention is not limited to the above embodiments, and various modifications are possible. For example, in the above embodiment, the abrasive of the condensing lens 11 is generally limited to ZnSe or Kcl, and the service life is about several months, whereas if it is made of a metal mirror, it will last semi-permanently by re-polishing. It can be used for purpose.
また、レーザ装置として炭酸ガスレーザ発振器１０の代
わりに例えばＹＡＧレーザ発振器を使用すれば、ＹＡＧ
レーザ（波長・１．０６μｍ）がファイバーを用いて伝
送可能なことから、複雑形状の大型部品を補修肉盛する
場合に適用することがてきる。Furthermore, if a YAG laser oscillator, for example, is used instead of the carbon dioxide laser oscillator 10 as a laser device, the YAG
Since the laser (wavelength: 1.06 μm) can be transmitted using fiber, it can be applied to repair overlays of large parts with complex shapes.
ところで、上記実施例において肉盛材料を粉末１２とし
て供給する代わりにワイヤとして供給することも考えら
れるが、この場合肉盛用ワイヤは粉末１２に比べてレー
ザ光ＩＣ１ａの吸収率が一般に低く、その結果大量のレ
ーザエネルギーを必要とするばかりでなく、肉盛効率も
低いので、補修肉盛に好適ではない。したがって、肉盛
材料は粉末として供給することが望ましい。By the way, in the above embodiment, it is possible to supply the build-up material as a wire instead of the powder 12, but in this case, the build-up wire generally has a lower absorption rate of the laser beam IC1a than the powder 12, As a result, it not only requires a large amount of laser energy, but also has low overlay efficiency, so it is not suitable for repair overlay. Therefore, it is desirable to supply the overlay material as a powder.
以上説明したように、本発明に係る肉盛補修方法よれば
、エネルギー密度の高いレーザ光により、欠陥部付近の
肉盛層と肉盛用粉末とを溶融させて補修肉盛層を形成す
ることができ、これにより部品の割れや変形を抑制し、
短時間で所望の肉盛層硬さをスムーズに得ることができ
るという効果を奏する。As explained above, according to the overlay repair method according to the present invention, a repair overlay layer is formed by melting the overlay layer and overlay powder near the defective part using a laser beam with high energy density. This suppresses cracking and deformation of parts,
The effect is that the desired build-up layer hardness can be smoothly obtained in a short time.
ための補修装置の一実施例を示す概略構成図、第２図は
上記補修装置により補修肉盛を行なう場合のレーザ施工
パラメータを示すグラフ図、第３図および第４図は本発
明によって生成された肉盛層の硬さを示すグラフ図、第
５図はカセグレンミラーを用いた他の実施例を示す概略
構成図、第６図はセグメントミラーを用いた別の他の実
施例を示す概略構成図、第７図はＴＩＧ溶接法を用いた
従来例を示す概略構成図、第８図はプラズマ粉体肉盛法
を用いた従来例を示す概略構成図、第９図はプラズマ粉
体内盛法によって生成された肉盛層の硬さを示すグラフ
図である。FIG. 2 is a graph showing laser construction parameters when repair overlay is performed by the above-mentioned repair device, and FIGS. 5 is a schematic configuration diagram showing another example using a Cassegrain mirror, and FIG. 6 is a schematic configuration diagram showing another example using a segment mirror. Figure 7 is a schematic configuration diagram showing a conventional example using the TIG welding method, Figure 8 is a schematic configuration diagram showing a conventional example using the plasma powder overlay method, and Figure 9 is a schematic configuration diagram showing a conventional example using the plasma powder overlay method. It is a graph diagram showing the hardness of the built-up layer generated by.
１．０・・・炭酸ガスレーザ発振器、１０ ａ・・レー
ザ光、１」・・・集光レンズ、１２・・・肉盛用粉末、
↓３・・・粉末供給装置、１４・・回転装置、Ｗ・・・
基材（母材）。1.0... Carbon dioxide laser oscillator, 10 a... Laser light, 1''... Condensing lens, 12... Powder for overlaying,
↓3...Powder supply device, 14...Rotating device, W...
Base material (base material).
第１図は本発明に係る補修肉盛方法を実行する１ ２ 第１図 夏 １、Ｏ ２，０ ３，０ ４，０ Ｑ し一すパヲ五身守炉１間 （Ｓｅｃ）第２図 第６図 Ｗ 第７図 FIG. 1 shows 1 of carrying out the repair overlay method according to the present invention. 2 Figure 1 summer 1, O 2,0 3,0 4,0 Q Shiichisupawo goshinori hearth 1 room (Sec) Figure 2 Figure 6 W Figure 7
Claims (1)
ともに、粉末材料を供給しつつ補修肉盛を行うことを特
徴とする肉盛補修方法。A build-up repair method characterized by irradiating a laser beam onto the surface of a build-up layer where a defect has occurred and performing repair build-up while supplying a powder material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2073210A JPH03275288A (en) | 1990-03-26 | 1990-03-26 | Build-up welding method for repair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2073210A JPH03275288A (en) | 1990-03-26 | 1990-03-26 | Build-up welding method for repair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03275288A true JPH03275288A (en) | 1991-12-05 |
Family
ID=13511570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2073210A Pending JPH03275288A (en) | 1990-03-26 | 1990-03-26 | Build-up welding method for repair |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03275288A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09122957A (en) * | 1995-10-31 | 1997-05-13 | Kawasaki Steel Corp | Filler material for laser beam welding of martensitic stainless steel |
| JP2012512752A (en) * | 2008-12-18 | 2012-06-07 | シーエスアイアール | How to repair a metal workpiece |
-
1990
- 1990-03-26 JP JP2073210A patent/JPH03275288A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09122957A (en) * | 1995-10-31 | 1997-05-13 | Kawasaki Steel Corp | Filler material for laser beam welding of martensitic stainless steel |
| JP2012512752A (en) * | 2008-12-18 | 2012-06-07 | シーエスアイアール | How to repair a metal workpiece |
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