WO2016047008A1 - 差厚材のレーザ溶接方法及び該方法を用いた差厚溶接部材 - Google Patents
差厚材のレーザ溶接方法及び該方法を用いた差厚溶接部材 Download PDFInfo
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- WO2016047008A1 WO2016047008A1 PCT/JP2015/002761 JP2015002761W WO2016047008A1 WO 2016047008 A1 WO2016047008 A1 WO 2016047008A1 JP 2015002761 W JP2015002761 W JP 2015002761W WO 2016047008 A1 WO2016047008 A1 WO 2016047008A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam welding
- B23K26/26—Seam welding of rectilinear seams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/04—Automatically aligning, aiming or focusing the laser beam, e.g. using the back-scattered light
- B23K26/046—Automatically focusing the laser beam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/082—Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam welding
- B23K26/242—Fillet welding, i.e. involving a weld of substantially triangular cross section joining two parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/32—Bonding taking account of the properties of the material involved
Definitions
- the present invention relates to a butt laser welding method and a differential thickness welding member for a differential thickness material having excellent welding strength.
- Lasers are used in various fields because they are high energy density heat sources.
- the welding field since it is high-speed and low heat input welding, there is a feature that there is little thermal distortion and alteration of the irradiated object, and it is used for welding steel materials and various metal materials.
- a welded joint such as a lap fillet welded joint, a T-shaped joint, or a butt joint can be obtained as in other welding methods such as an arc welding method.
- the target position of the laser beam and the butt interval of the materials to be welded together are strictly controlled. There is a need to. This is because the beam diameter of the laser beam varies depending on the laser oscillation method, lens, and the like, but is generally as small as 0.5 mm or less.
- Patent Documents 1 and 2 below disclose a welding method in which a laser beam is irradiated obliquely with respect to a butt surface of a material to be welded. As shown in FIG. 3, the surfaces opposite to the laser beam irradiation side surface (bottom surface in FIG. 3) of two workpieces having different thicknesses are flush with each other, and the laser target position is set at the corner 6 of the thick plate 2. In this laser welding method, the laser beam 3 is obliquely irradiated from the thick plate 2 side and the corner 6 of the thick plate 2 is melted into the thin plate 1 side.
- the corner 6 portion of the thick plate 2 that is, the difference thickness portion of the thick plate 2 from the thin plate 1 is mainly melted, so that it is necessary to severely set the laser target position.
- a good butt joint can be obtained with high efficiency without machining the butt end surface of the welded material or using a filler metal.
- JP-A-7-132386 Japanese Patent Laid-Open No. 9-216078
- the back bead is a weld metal (bead) exposed on the surface opposite to the heat source irradiation surface.
- the main object of the present invention is to provide a laser welding method for a differential thickness material that can efficiently obtain excellent welding strength and finish regardless of the thickness of a thick plate.
- the welding surfaces of two plate materials having different thicknesses are abutted so that the surfaces adjacent to the welding surfaces are flush with each other, and then the above-mentioned surface is arranged from the thin plate side of the flush surface.
- the usefulness of the laser welding method in which the laser beam is incident obliquely toward the welding surface is found, and by controlling the laser target position, incident angle, and butt interval within appropriate ranges, it is excellent regardless of the thickness of the thick plate
- the present invention has been completed with the knowledge that welding strength can be obtained.
- the same surface in a welded joint that is formed by welding the butt surfaces so that one surface of two materials to be welded having different thicknesses are flush with each other, the same surface (
- the upper surface in FIG. 4 may be referred to as the “surface of the welded joint”, and the surface on which the step is generated (the lower surface in FIG. 4) may be referred to as the “back surface of the welded joint”.
- the present invention is a laser of a differential thickness material in which a thin plate 10 and a thick plate 12 having different thicknesses are butted so that one surface thereof is flush, and then the laser beam 14 is irradiated to the butted surfaces for welding.
- the laser beam 14 is incident obliquely from the surface side of the thin plate 10 toward the butt end surface 12a of the thick plate 12, and the target position P of the laser beam 14 is set to the thick plate. 12 and a butt end face 12a, and a target position depth D from the surface of the laser beam 14 incident side plate is within the range of the following equation (1).
- t is the thickness of the thin plate 10 in the butt end face 10a surface direction, and both D and t are in mm.
- the surplus portion of the melted portion of the thick plate 12 melted is surplus. Even if a portion appears as an undesired back bead on the back surface of the welded joint, the back bead is formed on the back surface of the welded joint where a difference in thickness is caused by the difference in thickness of the thick plate 12. It does not occur and does not degrade the welding quality.
- the incident angle ⁇ of the laser beam 14 is inclined to the thin plate 10 side by 5 ° to 30 ° with respect to the butt end surface 12a of the thick plate 12. It is preferable that the butting interval C between the thin plate 10 and the thin plate 10 is 1.0 mm or less.
- a further invention in the present invention is a differential thickness welded member welded by the laser welding method of the differential thickness material of the present invention, wherein the penetration occurs in 50% or more of the area of the butt surface. To do.
- the laser welding method of the difference thickness material which can obtain the outstanding welding strength and finish efficiently irrespective of the thickness of a thick board, and the difference thickness welding member excellent in the welding quality using this method Can be provided.
- FIG. 4 is a diagram schematically showing a laser welding method for a differential thickness material according to the present invention.
- the unevenness of the end surface 10a of the thin plate 10, the unevenness of the end surface 12a of the thick plate 12, and the butting interval C between the thin plate 10 and the thick plate 12 are exaggerated.
- the thin plate 10 and the thick plate 12 are abutted so that one surface thereof is flush with each other, and then the laser beam 14 is irradiated to the abutting surface to be welded. .
- the laser beam 14 is incident obliquely from the flush surface side of the thin plate 10 toward the butting end surface 12a of the thick plate 12, and the target position P of the laser beam 14 is set to the butting end surface of the thick plate 12. 12a, and the target position depth D from the surface of the laser beam 14 incident side plate is set to a predetermined range described later.
- the butt laser welding conditions of the present invention will be described in detail below.
- the thin plate 10 and the thick plate 12 are abutted so that one surface thereof is flush, and then the laser beam 14 is flush with the surface of the thin plate 10. Is applied obliquely toward the butt end surface 12a of the thick plate 12, so that the thickness of the thick plate 12 is not restricted.
- the target position P of the laser beam 14 is the butt end surface 12a of the thick plate 12, even if the position of the butt end surface 10a of the thin plate 10 varies, the influence on the fusion is small.
- the target position depth D represents the depth from the laser beam 14 incident side plate material surface (that is, one surface of the thin plate 10) to the target position P of the laser beam 14 at the butting end surface 12a of the thick plate 12, and 1)
- the range of the formula is preferable. t / 3 ⁇ D ⁇ t (1) (where t is the thickness of the butt end surface 10a of the thin plate 10 and the unit is mm for both D and t)
- t is the thickness of the butt end surface 10a of the thin plate 10 and the unit is mm for both D and t
- the incident angle ⁇ of the laser beam 14 is defined as an angle between the vertical line of the upper surface angle 12b of the thick plate 12 and the center of the laser beam 14, and the angle is specifically the thickness.
- the plate 12 is preferably inclined to the thin plate 10 side by 5 ° to 30 ° with respect to the butt end surface 12a.
- the incident angle ⁇ of the laser beam 14 is less than 5 °, when the butt interval C is widened, the amount of penetration of the laser beam 14 increases, resulting in insufficient heat input.
- the incident angle ⁇ exceeds 30 °. This is because only the thin plate 10 is irradiated with the laser beam 14 and the thick plate 12 becomes insufficiently melted.
- the butt interval C in the present invention is a gap generated between the butt end surface 10a of the thin plate 10 and the butt end surface 12a of the thick plate 12, and the maximum value of the butt interval C from the welding start position to the end position. Is preferably limited to 1.0 mm or less. This is because if the butt interval C exceeds 1.0 mm, the welded portion becomes thin and dense, resulting in insufficient welding strength. Further, when the incident angle ⁇ of the laser beam 14 is small, there is a possibility that the laser beam 14 may penetrate and welding may not be performed.
- laser welding conditions other than those described above for example, conditions such as laser wavelength, laser output, laser beam diameter, welding speed, etc. are not particularly limited. It is appropriately selected depending on the type and thickness of the material to be welded, which will be described later.
- the types of the material to be welded are not particularly limited.
- low carbon steel, stainless steel and these steel materials are Zn-based plating, Al-based plating, Zn-Al-based alloy plating, Al-Si-based alloy plating, Zn-Al-Si-based alloy plating, Examples include those plated with Zn—Al—Mg alloy plating, Zn—Al—Mg—Si alloy plating, and the like.
- the present invention can be applied not only to the above-described steel materials but also to non-ferrous metals such as Al, and differential thickness welding between steel materials and non-ferrous metals.
- the method for cutting the material to be welded is not limited. A general cutting method such as a shear, a tip saw, or a band saw may be used. Further, it may be mechanically polished after cutting.
- the thickness of the thick plate 12 is not limited.
- the shape of the thick plate 12 is not limited to a plate shape, and may be a block shape.
- the thickness t of the thin plate 10 is preferably 6 mm or less. This is because if the thickness t of the thin plate 10 exceeds 6 mm, a high-power laser welding machine is required, and the equipment becomes expensive. Moreover, when the thin plate 10 becomes thick in this way, the welding speed is slowed down, so that productivity is lowered.
- the differential thickness welded member manufactured using the laser welding method of the differential thickness material as described above has penetration occurring at 50% or more of the area of the butt surface. Since the portion melted during welding is in a state of being quenched by the high heat of the laser beam 14, the hardness and the tensile strength are improved. As a result, if penetration occurs in 50% or more of the area of the butted surfaces, when a force is applied in a direction to separate the thin plate 10 and the thick plate 12 of the differential thickness welding member, the thin plate 10 may break the material. This is because welding strength can be obtained.
- low carbon steel, SUS304, and Al (aluminum) alloy shown in Table 1 were prepared as test materials.
- low-carbon steels were prepared without plating and with those coated with molten Zn-6 mass% Al-3 mass% Mg plating with an adhesion amount per side of 90 g / m2.
- the test material of thickness 6mm or less was cut
- the cutting end surface was machine-polished finishing.
- the material type symbol in Table 1 is a symbol used to represent the material type of each of the thin plate and the thick plate in Tables 2-1 to 2-3.
- matching part was measured with the clearance gauge before laser welding.
- the maximum butt interval is set to 0.1 mm or less.
- Tables 2-1 to 2-3 The obtained results are shown in Tables 2-1 to 2-3.
- the butt laser welding was performed on the various conditions mentioned later using the fiber laser welding machine of the maximum output 7kW.
- a sample for a tensile test having a width of 30 mm was taken from the butt laser welded sample, and a tensile test based on JIS Z-2241 was performed.
- the cross section of the welding intermediate part of the sample which carried out the butt laser welding was observed with the optical microscope, and the penetration state was observed.
- a comprehensive evaluation of the laser weld was performed from the tensile test results and the observation results of the penetration state. The standard of this comprehensive evaluation is shown below.
- ⁇ In the tensile test, the base metal breaks on the thin plate 1 side, and the thickness of the welded portion of the welded portion is 60 to 69% of the thin plate thickness.
- Tables 2-1 to 2-3 show the laser welding conditions, maximum butt interval, and overall evaluation results. Note that t in the column of the laser target position depth D is the thickness of the thin plate 10.
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Abstract
Description
なぜなら、レーザビームのビーム径は、レーザの発振方式やレンズ等によって異なるが、一般的に0.5mm以下と小さい。このため、後述のようにレーザビームの狙い位置がずれた場合には、溶接部分に溶け込み不良が発生し、互いに溶接する材料の突合せ間隔がレーザビーム径よりも広い場合には、鉛直方向に進むレーザビームが当該間隔を突き抜けて溶接できなくなるからである。
また、厚板2側からレーザビーム3を斜めに入射させた場合、熱伝導性の高い金属材料からなる厚板2にレーザビーム3の熱が吸収されるので、厚板2の角6の部分は溶融できたとしても、レーザビーム3の熱ロスが大きく効率的に溶接が出来ているとは言い難い。
本発明は、このような現状に鑑み、厚板の厚みにかかわらず、効率的に、優れた溶接強度と仕上がりとが得られる差厚材のレーザ溶接方法を提供することを主たる目的とする。
なお、本発明では、厚みが異なる2つの被溶接材の一表面が面一(ツライチ)となるように突合せた突合せ面を後に溶接して構成した溶接継手において、その面一となった面(図4における上面)を「溶接継手の表面」、段差が生じる面(図4における下面)を「溶接継手の裏面」と称する場合もある。
t/3≦D≦t …(1)
(但し、tは薄板10の突合せ端面10a面方向の厚みであり、D,t共に単位はmm。)
この発明では、レーザビーム14を、薄板10の面一とした表面側から厚板12の突合せ端面12aに向けて斜めに入射させているので、溶かし込んだ厚板12の溶解部分のうち余剰な部分が不所望な裏ビードとなって溶接継手の裏面に現れたとしても、この裏ビードは厚板12の差厚部分によって段差が生じた溶接継手の裏面に形成されるため、外観上違和感を生じさせることはなく、溶接品質を低下させることはない。
本発明では、薄板10と厚板12とを、それらの一表面が面一となるように突合せた後、その突合せ面にレーザビーム14を照射して溶接する差厚材のレーザ溶接方法である。とりわけ、前記レーザビーム14を、薄板10の前記面一とした表面側から厚板12の突合せ端面12aに向けて斜めに入射させ、当該レーザビーム14の狙い位置Pを上記厚板12の突合せ端面12aにすると共に、前記レーザビーム14入射側板材表面からの狙い位置深さDを後述する所定の範囲にすることを特徴としている。
以下に、本発明の突合せレーザ溶接条件を詳述する。
また、本発明では、レーザビーム14の狙い位置Pを厚板12の突合せ端面12aとしたことにより、薄板10の突合せ端面10aの位置が変動しても溶け込みにおよぼす影響が小さい。ちなみに、レーザの狙い位置Pを薄板10の突合せ端面10aあるいは当該端面10aの角部10bにした場合、狙い位置検出器が必要となるため設備が高額となり、また、突合せ部16の間隔が変動すると溶け込みが不安定になる。
t/3≦D≦t …(1) (但し、tは薄板10の突合せ端面10a面方向の厚みであり、D,t共に単位はmm。)
狙い位置深さDが薄板10の厚みtの1/3よりも浅い場合には、被溶接材の溶け込み量が少なくなり、逆に、狙い位置深さDがtよりも深い場合には、薄板10のみが溶融して厚板12が溶融不足となるからである。
一方、薄板10は厚みtは6mm以下が好適である。薄板10は厚みtがこの6mmより厚くなると大出力のレーザ溶接機が必要となり、設備が高額となるからである。また、薄板10がこのように厚くなると、溶接速度が遅くなるため生産性が低下するからである。
ここで、表1中の材料種記号は、表2-1~表2-3における薄板及び厚板それぞれの材料種を表すために用いる記号である。
そして、最大出力7kWのファイバーレーザ溶接機を用いて、後述する様々な条件で突合せレーザ溶接を行なった。
突合せレーザ溶接したサンプルから幅30mmの引張試験用サンプルを採取し、JIS Z-2241に準拠した引張試験を行った。また、突合せレーザ溶接したサンプルの溶接中間部の断面を光学顕微鏡観察し、溶け込み状態を観察した。引張試験結果と溶け込み状態の観察結果からレーザ溶接部の総合評価を行った。この総合評価の基準を以下に示す。
◎:引張試験において薄板1側で母材破断、且つ溶接部の溶融部の厚みが薄板の板厚の70~100%。
○:引張試験において薄板1側で母材破断、且つ溶接部の溶融部の厚みが薄板の板厚の60~69%。
△:引張試験において薄板1側で母材破断、且つ溶接部の溶融部の厚みが薄板の板厚の45~59%。
×:引張試験で溶接部が破断。
かかる総合評価の結果、溶融部が厚くなる程、引張強度や疲労強度が高く、また溶接部が引張変形を受けた時の口開きが小さくなるので好ましいことが明らかとなった。
10a…(薄板)の突合せ端面
12…厚板
12a…(厚板)の突合せ端面
14…レーザビーム
C…(厚板と薄板との)突合せ間隔
D…狙い位置深さ
P…レーザビームの狙い位置
t…薄板の突合せ端面面方向の厚み
θ…レーザビームの入射角
Claims (4)
- 厚みの異なる薄板(10)と厚板(12)とを、それらの一表面が面一となるように突合せた後、その突合せ面にレーザビーム(14)を照射して溶接する差厚材のレーザ溶接方法であって、
前記レーザビーム(14)を、薄板(10)の前記面一とした表面側から厚板(12)の突合せ端面(12a)に向けて斜めに入射させ、当該レーザビーム(14)の狙い位置(P)を上記厚板(12)の突合せ端面(12a)にすると共に、前記レーザビーム(14)入射側板材表面からの狙い位置深さDを下記(1)式の範囲にする、ことを特徴とする差厚材のレーザ溶接方法。
t/3≦D≦t …(1)
(但し、tは薄板(10)の突合せ端面(10a)面方向の厚みであり、D,t共に単位はmm。) - 請求項1に記載の差厚材のレーザ溶接方法において、
前記レーザビーム(14)の入射角(θ)が前記厚板(12)の突合せ端面(12a)に対して5°~30°薄板(10)側に傾斜させたものであることを特徴とする差厚材のレーザ溶接方法。 - 請求項1又は2に記載の差厚材のレーザ溶接方法において、
前記厚板(12)と前記薄板(10)との突合せ間隔(C)が1.0mm以下であることを特徴とする差厚材のレーザ溶接方法。 - 請求項1乃至3の何れかに記載の差厚材のレーザ溶接方法で溶接した差厚溶接部材であって、
突合せ面における面積の50%以上で溶け込みが生じていることを特徴とする差厚溶接部材。
Priority Applications (11)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NZ730053A NZ730053A (en) | 2014-09-26 | 2015-06-01 | Method for laser welding of materials having different thicknesses |
| AU2015323262A AU2015323262B2 (en) | 2014-09-26 | 2015-06-01 | Method for laser welding of materials with different thicknesses and welded member having different thicknesses produced by said method |
| BR112017005389-6A BR112017005389A2 (ja) | 2014-09-26 | 2015-06-01 | A difference thickness welding member using a laser welding method and the method of difference thickness material |
| RU2017113075A RU2636425C1 (ru) | 2014-09-26 | 2015-06-01 | Способ лазерной сварки материалов, имеющих разные толщины |
| US15/514,088 US9993896B2 (en) | 2014-09-26 | 2015-06-01 | Method for laser welding of materials having different thicknesses |
| EP15843959.6A EP3184231B1 (en) | 2014-09-26 | 2015-06-01 | Laser welding method of materials with different thicknesses |
| KR1020177010335A KR101831584B1 (ko) | 2014-09-26 | 2015-06-01 | 상이한 두께의 재료의 레이저 용접 방법 |
| CN201580051604.1A CN107073649B (zh) | 2014-09-26 | 2015-06-01 | 差厚材料的激光焊接方法 |
| CA2962720A CA2962720C (en) | 2014-09-26 | 2015-06-01 | Method for laser welding of materials having different thicknesses |
| MX2017003094A MX2017003094A (es) | 2014-09-26 | 2015-06-01 | Procedimiento de soldadura laser de materiales que tienen diferentes espesores y elemento soldado que tiene diferentes espesores producido mediante dicho rocedimiento. |
| PH12017500565A PH12017500565B1 (en) | 2014-09-26 | 2017-03-27 | Method for laser welding of materials having different thicknesses |
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| EP (1) | EP3184231B1 (ja) |
| JP (1) | JP6089323B2 (ja) |
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| JP6819479B2 (ja) | 2017-06-21 | 2021-01-27 | トヨタ自動車株式会社 | 金属部材及びその製造方法 |
| CN110238511B (zh) * | 2018-03-09 | 2021-05-07 | 上海海立电器有限公司 | 一种激光焊接方法 |
| JP7160090B2 (ja) * | 2018-03-29 | 2022-10-25 | 日本製鉄株式会社 | 金属材料の複合溶接方法および金属材料の突合せ溶接部材 |
| DE102018220445A1 (de) * | 2018-11-28 | 2020-05-28 | Trumpf Laser- Und Systemtechnik Gmbh | Verfahren zum Stoßschweißen zweier Werkstücke mittels eines UKP-Laserstrahls sowie zugehöriges optisches Element |
| DE102018220447A1 (de) | 2018-11-28 | 2020-05-28 | Trumpf Laser Gmbh | Verfahren zum Stoßschweißen mittels eines UKP-Laserstrahls sowie aus Einzelteilen zusammengefügtes optisches Element |
| WO2020175573A1 (ja) * | 2019-02-27 | 2020-09-03 | Jfeスチール株式会社 | 組立スラブおよびその製造方法ならびにクラッド鋼材の製造方法 |
| JP6989549B2 (ja) * | 2019-03-13 | 2022-01-05 | フタバ産業株式会社 | 接合体の製造方法 |
| CN112935553B (zh) * | 2021-03-23 | 2025-12-05 | 昆山华恒焊接股份有限公司 | 激光焊接系统、激光焊接控制方法、装置及存储介质 |
| CN119501288B (zh) * | 2024-11-26 | 2025-11-11 | 华中科技大学 | 能够抑制驼峰缺陷的焊接方法及装置 |
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- 2015-06-01 US US15/514,088 patent/US9993896B2/en active Active
- 2015-06-01 WO PCT/JP2015/002761 patent/WO2016047008A1/ja not_active Ceased
- 2015-06-01 CN CN201580051604.1A patent/CN107073649B/zh not_active Expired - Fee Related
- 2015-06-01 CA CA2962720A patent/CA2962720C/en not_active Expired - Fee Related
- 2015-06-01 AU AU2015323262A patent/AU2015323262B2/en not_active Ceased
- 2015-06-01 KR KR1020177010335A patent/KR101831584B1/ko active Active
- 2015-06-01 BR BR112017005389-6A patent/BR112017005389A2/ja not_active Application Discontinuation
- 2015-06-01 MY MYPI2017701025A patent/MY165597A/en unknown
- 2015-06-01 RU RU2017113075A patent/RU2636425C1/ru active
- 2015-06-01 NZ NZ730053A patent/NZ730053A/en not_active IP Right Cessation
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Also Published As
| Publication number | Publication date |
|---|---|
| EP3184231B1 (en) | 2018-09-19 |
| KR20170049603A (ko) | 2017-05-10 |
| AU2015323262B2 (en) | 2017-04-13 |
| US20170297145A1 (en) | 2017-10-19 |
| MY165597A (en) | 2018-04-16 |
| EP3184231A4 (en) | 2017-08-23 |
| CN107073649A (zh) | 2017-08-18 |
| JP2016068092A (ja) | 2016-05-09 |
| PH12017500565A1 (en) | 2017-08-30 |
| PH12017500565B1 (en) | 2020-02-19 |
| KR101831584B1 (ko) | 2018-02-23 |
| RU2636425C1 (ru) | 2017-11-23 |
| NZ730053A (en) | 2018-09-28 |
| EP3184231A1 (en) | 2017-06-28 |
| JP6089323B2 (ja) | 2017-03-08 |
| MX2017003094A (es) | 2017-10-12 |
| CA2962720A1 (en) | 2016-03-31 |
| US9993896B2 (en) | 2018-06-12 |
| CN107073649B (zh) | 2018-07-10 |
| BR112017005389A2 (ja) | 2018-01-23 |
| CA2962720C (en) | 2019-01-08 |
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