JPS6343788A - Laser beam welding method - Google Patents
Laser beam welding methodInfo
- Publication number
- JPS6343788A JPS6343788A JP61184200A JP18420086A JPS6343788A JP S6343788 A JPS6343788 A JP S6343788A JP 61184200 A JP61184200 A JP 61184200A JP 18420086 A JP18420086 A JP 18420086A JP S6343788 A JPS6343788 A JP S6343788A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- substrate
- board
- laser
- laser light
- 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
- 238000003466 welding Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims description 15
- 239000011248 coating agent Substances 0.000 claims abstract description 15
- 239000011324 bead Substances 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 8
- 239000000956 alloy Substances 0.000 claims abstract description 8
- 239000000758 substrate Substances 0.000 claims description 26
- 238000005520 cutting process Methods 0.000 claims description 21
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 230000001678 irradiating effect Effects 0.000 claims 2
- 238000010438 heat treatment Methods 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 8
- 238000000576 coating method Methods 0.000 abstract description 5
- 238000005304 joining Methods 0.000 abstract description 2
- 238000005219 brazing Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 7
- 239000010410 layer Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical group [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910001315 Tool steel Inorganic materials 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910001105 martensitic stainless steel Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000677 High-carbon steel Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler 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
- 239000012535 impurity Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000001404 mediated effect Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、ｌ／−ザ溶接方法、例えば、フンクリート
やアスファルト道路などの表面層を切断するための鋸刃
の基板と刃先チップとのレーザ溶接方法ｌこ関するもの
である。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an l/-za welding method, for example, a laser welding method for welding a substrate of a saw blade and a cutting edge tip for cutting surface layers such as Funkrete and asphalt roads. This relates to a welding method.
一般に、コンクリートやアスファルト道路の表面に切込
みを入れる為に使用される鋸刃は、第４図および第５図
に示すように、基板（１）および基板（１）に溶着され
ている刃先チップ（２）によって構成されている。In general, saw blades used to cut into the surface of concrete or asphalt roads are shown in Figures 4 and 5. 2).
刃先チップ（２）は切断する物の種類等によって成分が
調整され、コバルト系、ブロンズ系、タングステン・カ
ーバイド系、鉄系などがあり、いずれも、主成分金属、
添加成分金属、バインダーおよび人工ダイヤモンド粒な
どを混合して焼結されたものである。The composition of the cutting edge tip (2) is adjusted depending on the type of object to be cut, and there are cobalt-based, bronze-based, tungsten carbide-based, iron-based, etc.
It is made by mixing and sintering additive metals, binder, artificial diamond particles, etc.
また、基板と呼ばれる回転板の部分は、工具鋼（ＥＩＫ
）材、０ｒ−Ｈｏ鋼（ＦＩＣ！Ｍ）材、マルテンサイト
系ステンレス鋼材などの耐熱工具鋼等特殊鋼で構成され
ている。In addition, the part of the rotating plate called the base plate is made of tool steel (EIK
), 0r-Ho steel (FIC!M), martensitic stainless steel, and other heat-resistant tool steels.
そして従来の製造法は、この刃先チップ（２）と基板（
１）との接合を、銅ろう付けなどのろう付は法などで接
合しているものが多い。In the conventional manufacturing method, this cutting edge tip (2) and the substrate (
In many cases, the connection with 1) is performed using brazing methods such as copper brazing.
その方法は、刃先チップ（２）と基板（１）との接合部
を高周波加熱するか、又は、バーナ加熱などの手段ｉこ
より、所定温度に加熱した後、ろう材を添加し、ろう付
けを行なうものである。The method is to heat the joint between the cutting edge tip (2) and the substrate (1) to a predetermined temperature by high frequency heating or burner heating, then add a brazing material and perform brazing. It is something to do.
従来のろう付は法によると、基板（１）および刃先チッ
プ（２）を、ろう付は温度すなわち一般には６００°Ｃ
〜１１００℃まで加熱しなければならず、その加熱範囲
も広くなって、加熱時間がかかるばかりでなく、調質済
みの基板（１）の硬度が、そのろう付は温度まで加熱す
ることによってなまされて、低下するなどの問題点を有
していた。Conventional brazing, according to the law, involves bonding the substrate (1) and the cutting edge tip (2) at a temperature, typically 600°C.
It is necessary to heat up to ~1100℃, and the heating range is wide, and not only does it take a long time to heat, but the hardness of the tempered substrate (1) can be reduced by heating to a temperature of However, there were problems such as a decrease in energy consumption.
また、このようなろう付は法で接合された刃先チップ（
２）は、コンクリートなどの切断時に生ずる鋸刃と加工
物であるコンクリート等との摩擦熱により、融点が低く
、耐熱強度が低いろう材が加熱されて強度が低下する接
合部より剥れるなどの問題点も合わせ有していた。In addition, this type of brazing can also be applied to the cutting edge tip (
2) is caused by the frictional heat generated between the saw blade and the workpiece, such as concrete, that occurs when cutting concrete, etc., which causes the brazing filler metal, which has a low melting point and low heat resistance strength, to heat up and peel off from the joint where the strength decreases. It also had some problems.
この発明は、上記のような問題点を解決するためになさ
れたもので、特殊鋼からなる基板き焼結合金チップとの
接合を、基板の温度上昇による硬度低下を防止するとと
もに接合部の耐熱強度を高めることができる溶接方法を
得ることを目的とする。This invention was made to solve the above-mentioned problems, and it is possible to prevent a decrease in hardness due to an increase in the temperature of the substrate and to improve the heat resistance of the joint when joining a substrate made of special steel with a sintered alloy chip. The purpose is to obtain a welding method that can increase strength.
この発明に係るレーザ溶接方法は、基板と焼結合金チッ
プ吉の局部的な急熱、急冷により溶融部と基板側ＨＡＺ
層部分とのミクロ割れ、脆弱化を防ぐ目的で溶接前に基
板側のＨＡＺ層に相当するゾーンを中心に予熱されやす
くするためにレーザ光を吸収しやすい塗布剤を塗り、溶
接より弱いエネルギー密度にしたレーザのビーム照射に
よって予熱し、次いで、溶接部をレーザ溶接するように
している。In the laser welding method according to the present invention, the molten part and the substrate side HAZ are formed by local rapid heating and cooling of the substrate and the sintered alloy chip.
In order to prevent micro-cracking and weakening of the layer, before welding, a coating agent that easily absorbs laser light is applied to the zone corresponding to the HAZ layer on the board side to make it easier to preheat, and the energy density is weaker than that of welding. The welding area is preheated by irradiation with a laser beam, and then the welded portion is laser welded.
この発明によると、塗布剤の塗布によって弱いエネルギ
ー密度のビーム照射Ｊこよっても十分吸熱して予熱され
、才た、溶接ビード部の幅だけは塗布剤が塗られていな
いので、溶接時の溶融池の中へ塗布剤の不純物が混入す
ることはなく、従って、溶着部分は良好に溶接される。According to this invention, by applying the lubricant, even if the beam is irradiated with a weak energy density, it will sufficiently absorb heat and be preheated. No impurities from the coating agent are mixed into the pool, and the welded parts are therefore well welded.
以下、この発明をその一実施例であるコンクリート切断
用鋸刀の溶接方法を示す図に基づいて説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to figures showing a welding method for a saw blade for cutting concrete, which is an embodiment of the present invention.
第１図〜第６図において、符号（１）は基板、（２）は
焼結合金チップ例えば刃先チップ、（３）はレーザ光の
反射を防止しレーザ光を吸収させるために基板表面に溶
接ビード部（６）の幅を除いて塗られた塗布剤、（４）
は基板および刃先チップを予熱している状態でのデフォ
ーカスビーム、（５）は溶接時のジャストフォーカスビ
ーム、（６）は溶接ビード部、（７）は予熱時に溶接部
に供給される加工ガス、（８）は溶接時に溶接部に供給
される加工ガス、（９）はレーザ溶接機の加工レンズ、
（１０）はレーザ溶接機の加工ノズルを示す。In Figures 1 to 6, symbol (1) is a substrate, (2) is a sintered alloy chip, such as a cutting edge tip, and (3) is welded to the substrate surface to prevent laser light reflection and absorb laser light. Coating agent applied except for the width of the bead (6), (4)
(5) is the just-focus beam during welding, (6) is the weld bead, and (7) is the processing gas supplied to the weld during preheating. , (8) is the processing gas supplied to the welding part during welding, (9) is the processing lens of the laser welding machine,
(10) shows a processing nozzle of a laser welding machine.
コンクリート切断用鋸刀の基板（１）には一般に調質さ
れた特殊鋼材が使用されるが、これにはコンクリートな
どの加工物を切断する際に発生する熱に対する耐熱強度
、弾性強度を保つために、工具鋼（ＳＫ）材、Ｏｒ−Ｍ
ｏ鋼（ＳＯＭ）材、あるいは、マルテンサイト系ステン
レス鋼材などの高炭素鋼、高クローム調停特殊鋼が用い
られ、一方刃先チツブ（２ンには、コンクリートの切削
性をよくするためにタングステンカーバイドなど、高硬
度の焼結合金が使用されるとともに切削性を高める目的
をもって人工ダイヤモンド粒などが混入されている。The substrate (1) of concrete cutting saws is generally made of special tempered steel, which is used to maintain heat resistance and elastic strength against the heat generated when cutting workpieces such as concrete. , tool steel (SK) material, Or-M
o steel (SOM) material, high carbon steel such as martensitic stainless steel material, and high chromium-mediated special steel, while the cutting edge tip (2) is made of tungsten carbide, etc. to improve concrete cutting properties. In addition to using a high-hardness sintered alloy, artificial diamond particles are mixed in to improve machinability.
しかるに、これらの基板（１）と刃先チップ（２）とは
、共に溶接性が悪く、従来はろう付は法で接合していた
ものである。However, both the substrate (1) and the cutting edge tip (2) have poor weldability, and conventionally they have been joined by brazing.
溶融溶接法を用いる場合には、レーザビームのようにで
きるだけ高密度エネルギービームを用い、刃先チップ（
２）にはほとんどビームを照射せず、基板（１）側に通
常０．１〜０．２闘オフセツトして、しかも、基板（１
）を最少限度溶融する高速溶接が望しい。When using the fusion welding method, use a beam of energy as high as possible, such as a laser beam, to ensure that the cutting edge tip (
2) is hardly irradiated with the beam, and is usually offset by 0.1 to 0.2 to the substrate (1) side.
) is desirable.
これは、溶融される金属が多くなればそれだけ炭素など
低融点成分の析出、結晶化が進み、従って、溶接割れの
原因となる。This is because the more metal is melted, the more low melting point components such as carbon will precipitate and crystallize, which will cause weld cracking.
しかしながら、高速溶接することは、逆に溶接後の冷却
も急になり、溶融部およびＨＡＺ層の焼入効果を高めて
焼入硬度を上昇させる結果となり、また、ＨＡＺ層の強
度を極端に劣下させる。However, high-speed welding conversely results in rapid cooling after welding, which increases the quenching effect of the molten zone and the HAZ layer, increasing the quenched hardness, and also extremely reduces the strength of the HAZ layer. Let it go down.
このようなＨＡＺ層の強度劣化を防ぐには、溶接前に特
に基板（１）の溶接部近傍を２００℃〜３００℃に予熱
しておき、溶接後の冷却速度を遅らせればよく、また、
場合によっては、溶接後再びデフォーカスビームに切り
換えて後熱処理を行なってもよい。In order to prevent such strength deterioration of the HAZ layer, it is sufficient to preheat the vicinity of the welded part of the substrate (1) to 200°C to 300°C before welding, and to slow down the cooling rate after welding.
Depending on the case, post-heat treatment may be performed by switching to a defocused beam again after welding.
しかし、基板（１）に使用される鋼材は、常温から融点
に至る固体領域では、レーザ光は反射して吸収性がきわ
めて悪いために、このレーザ光の反射を防いで吸収性を
よくする目的をもって、この発明では、基板（１）の溶
接ビード部（６）の幅を除いた基板の予熱部分の表面に
、レーザ光の吸収性のよい塗布剤が塗られている。However, since the steel material used for the substrate (1) is a solid region ranging from room temperature to melting point, laser light is reflected and the absorption is extremely poor, so the purpose is to prevent the reflection of this laser light and improve its absorption. According to the present invention, the surface of the preheated portion of the substrate (1) excluding the width of the weld bead portion (6) is coated with a coating agent that has good laser beam absorption.
この塗布剤としては、揮発性の溶剤に溶かしたカーボン
粉末、あるいは、シリコン系耐熱ペイントなどが用いら
れるが、溶融金属中に混入すると、溶接割れやブローホ
ール発生などの原因となって悪影響を及ぼすので、溶接
ビード部（６）の幅に相当する部分、通常は１〜２ ｍ
ｍだけ、塗布しない部分を設けている。Carbon powder dissolved in a volatile solvent or silicone-based heat-resistant paint is used as this coating agent, but if mixed into the molten metal, it can cause weld cracks and blowholes, causing negative effects. Therefore, the part corresponding to the width of the weld bead (6), usually 1 to 2 m.
There is a portion that is not coated by m.
次にレーザビームをデフォーカスビーム（４）にして予
熱している状態を第２図に示しているが、この場合の加
工ガス（７）は窒素ガス又は空気が用いられ、その目的
は加工レンズ（９）の冷却が主となる。Next, Fig. 2 shows a state in which the laser beam is preheated by turning it into a defocused beam (4). In this case, nitrogen gas or air is used as the processing gas (7), and its purpose is to process the lens. (9) Cooling is the main component.
また、溶接時は、第３図に示すように、ビームはジャス
トフォーカスビーム（５）とし、この場合の加工ガスは
アルゴンガス又はヘリウムガスが用いられる。Further, during welding, as shown in FIG. 3, the beam is a just-focus beam (5), and the processing gas in this case is argon gas or helium gas.
更に、第２図に示す予熱時と第３図に示す溶接時とでは
、加工レンズ（９）および加工ノズル（１０）は共に上
下させる必要があり、才た、いずれの場合も基板および
刃先チップは治具に取り付けられた状態（図示せず）で
回転される。Furthermore, during preheating as shown in Figure 2 and during welding as shown in Figure 3, both the processing lens (9) and the processing nozzle (10) must be moved up and down. is rotated while attached to a jig (not shown).
以上のように、この発明によれば、レーザビームによる
予熱、溶接、場合によっては後熱も同一熱源を使用する
ようにしたので、ガスバーナ等別の加熱源が不要になり
、また、ビーム照射ゾーンを広げて加熱することとレー
ザビームをよく吸収する塗布剤により、必要最少限の予
熱を可能にして基板全体の硬度劣化を防ぎ、更に、塗布
剤の限定した塗り方により溶着部の品質低下を防止して
溶接自身の信頼性も高められるレーザ溶接方法が得られ
た効果を有している。As described above, according to the present invention, the same heat source is used for preheating by a laser beam, welding, and in some cases postheating, so a separate heating source such as a gas burner is not required, and the beam irradiation zone By spreading the coating and heating it and using a coating agent that absorbs the laser beam well, it is possible to perform the minimum amount of preheating necessary to prevent deterioration of the hardness of the entire board.Furthermore, by applying the coating agent in a limited manner, the quality of the welded part is prevented from deteriorating. This has the effect of providing a laser welding method that can prevent this problem and improve the reliability of the welding itself.
【図面の簡単な説明】
第１図はこの発明の一実施例により溶着されるコンクリ
ート切断用鋸刀の平面図、第２図は第１図の鋸刃をレー
ザ溶接のデフォーカスビームで予熱中の状態を示す溶°
接機の要部縦断面図、第６図は第２図の状態の後、ジャ
ストフォーカスでの溶接中の状態を示す溶接機の縦断面
図、第４図は従来のコンクリート切断用鋸刀の構成平面
図、第５図は第４図の■−■線による断面図である。
（１）・・基板、（２）・・焼結合金チップ（刃先チッ
プ）、（６）・・塗布剤、（４）・・デフォーカスビー
ム、（５）・ｅジャストフォーカスビーム、（６）−・
溶接ビード部。
なお、各図中、同一符号は同−又は相当部分を示す。
Ｍ４図
尾５図
″２[Brief Description of the Drawings] Fig. 1 is a plan view of a saw blade for cutting concrete welded according to an embodiment of the present invention, and Fig. 2 shows the saw blade of Fig. 1 being preheated by a defocused beam of laser welding. Solubility indicating the state of
Figure 6 is a vertical cross-sectional view of the main part of the welding machine, after the state shown in Figure 2, a vertical cross-sectional view of the welding machine showing a state during welding with just focus, and Figure 4 is a vertical cross-sectional view of a conventional concrete cutting saw. The structural plan view, FIG. 5, is a sectional view taken along the line ■-■ in FIG. 4. (1)...Substrate, (2)...Sintered alloy chip (cutting edge tip), (6)...Coating agent, (4)...Defocused beam, (5)...e Just Focus Beam, (6)... −・
Weld bead part. In each figure, the same reference numerals indicate the same or corresponding parts. M4 figure tail 5 figure"2
Claims (2)
溶接するレーザ溶接方法において、基板の溶接側表面の
溶接ビード部の幅を除いた基板表面にレーザ光を吸収す
る塗布剤を塗り、溶接前にあらかじめビーム照射ゾーン
を広げて基板にビーム照射することによって基板を予熱
し、次いで、塗布剤を塗っていない溶接ビード部にレー
ザビームを照射して溶接することを特徴とするレーザ溶
接方法。(1) In a laser welding method for laser welding a sintered alloy chip and a substrate made of special steel, a coating agent that absorbs laser light is applied to the surface of the substrate excluding the width of the weld bead on the welding side surface of the substrate, A laser welding method characterized by preheating the substrate by expanding the beam irradiation zone and irradiating the substrate with the beam before welding, and then welding by irradiating the weld bead portion that is not coated with a coating agent with the laser beam. .
結合金チップが上記基板に溶着される刃先チップである
特許請求の範囲第１項記載のレーザ溶接方法。(2) The laser welding method according to claim 1, wherein the substrate is a substrate of a concrete cutting saw blade, and the sintered metal tip is a cutting edge tip welded to the substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61184200A JPS6343788A (en) | 1986-08-07 | 1986-08-07 | Laser beam welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61184200A JPS6343788A (en) | 1986-08-07 | 1986-08-07 | Laser beam welding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6343788A true JPS6343788A (en) | 1988-02-24 |
Family
ID=16149105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61184200A Pending JPS6343788A (en) | 1986-08-07 | 1986-08-07 | Laser beam welding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6343788A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995011101A1 (en) * | 1993-10-20 | 1995-04-27 | United Technologies Corporation | Multiple beam laser sintering |
| EP1232819A2 (en) * | 2001-01-19 | 2002-08-21 | Milwaukee Electric Tool Corporation | Methods for manufacturing band saw blades |
| US7265315B2 (en) * | 2004-06-10 | 2007-09-04 | Mitsubishi Denki Kabushiki Kaisha | Method of joining terminals by soldering |
| JP2009274136A (en) * | 2008-05-15 | 2009-11-26 | General Electric Co <Ge> | Preheating using laser beam |
| CN110000470A (en) * | 2017-11-27 | 2019-07-12 | 矢崎总业株式会社 | The welding method of dissimilar metals |
-
1986
- 1986-08-07 JP JP61184200A patent/JPS6343788A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995011101A1 (en) * | 1993-10-20 | 1995-04-27 | United Technologies Corporation | Multiple beam laser sintering |
| CN1057033C (en) * | 1993-10-20 | 2000-10-04 | 联合技术公司 | Multiple beam laser sintering |
| EP1232819A2 (en) * | 2001-01-19 | 2002-08-21 | Milwaukee Electric Tool Corporation | Methods for manufacturing band saw blades |
| EP1232819A3 (en) * | 2001-01-19 | 2002-11-27 | Milwaukee Electric Tool Corporation | Methods for manufacturing band saw blades |
| US7265315B2 (en) * | 2004-06-10 | 2007-09-04 | Mitsubishi Denki Kabushiki Kaisha | Method of joining terminals by soldering |
| JP2009274136A (en) * | 2008-05-15 | 2009-11-26 | General Electric Co <Ge> | Preheating using laser beam |
| CN110000470A (en) * | 2017-11-27 | 2019-07-12 | 矢崎总业株式会社 | The welding method of dissimilar metals |
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