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1. 发明专利

JP2013220445A Tailored blank for hot stamping, and method of manufacturing the same 有权
标题翻译：用于热冲压的定制空白及其制造方法
公开(公告)号：JP2013220445A
公开(公告)日：2013-10-28
申请号：JP2012093812
申请日：2012-04-17
申请人： Nippon Steel & Sumitomo Metal Corp , 新日鐵住金株式会社
发明人： NAITO YASUAKI , MIYAZAKI YASUNOBU
IPC分类号： B23K35/30 , B23K26/20 , B23K103/16 , C22C21/02 , C22C38/00 , C22C38/38
摘要： PROBLEM TO BE SOLVED: To provide a tailored blank with sufficient joint strength which is a tailored blank for hot stamping formed by butt-welding an aluminum plated steel sheet as it is without removing a plate layer of a part to be welded.SOLUTION: As for welded metal formed by butt-welding in a tailored blank for hot stamping formed by butt-welding an aluminum plated steel sheet, an aluminum average concentration is 0.3-1.5 mass%, an Acpoint temperature is 1,250°C or lower, and Δt(a critical cooling time for 100% martensite determined by a component of the welded metal) is 0.5 second or more.
摘要翻译：要解决的问题：提供具有足够接头强度的定制坯料，其是通过对其进行对焊而形成的热冲压的定制坯料，而不去除要焊接的部件的板层。解决方案：作为对于通过对接镀铝钢板而形成的热冲压的定制坯料进行对焊而形成的焊接金属，铝平均浓度为0.3〜1.5质量％，Acpoint温度为1250℃以下，＆Dgr; t（由焊接金属的成分确定的100％马氏体的临界冷却时间）为0.5秒以上。

2. 发明专利

JP2013204090A Tailored blank for hot stamping 有权
标题翻译：定制空白烫印
公开(公告)号：JP2013204090A
公开(公告)日：2013-10-07
申请号：JP2012074222
申请日：2012-03-28
申请人： Nippon Steel & Sumitomo Metal Corp , 新日鐵住金株式会社
发明人： MIYAZAKI YASUNOBU , NAITO YASUAKI , KAWASAKI KAORU , YOSHINAGA TAKAHIRO
IPC分类号： C22C38/00 , B23K26/20 , B23K103/16 , C22C21/02 , C22C38/06 , C22C38/38
摘要： PROBLEM TO BE SOLVED: To provide a tailored blank for hot stamping, which is formed by butt laser-welding aluminum-plated steel sheets as such without removing the plating layer of the area to be welded, and has a sufficient weld joint strength.SOLUTION: In a tailored blank for hot stamping, formed by butt laser-welding aluminum-plated steel sheets of different strengths, the welding is performed by combining the kinds of the steel sheets to be butt-welded, so that: the average Al concentration of the weld metal formed by butt laser-welding is 0.3 mass%-1.5 mass%; the Acpoint temperature of the weld metal is 1,250°C or less; and the value of multiplication between the hardness of the weld metal after hot stamping and the thickness of the thinnest area of the weld metal is greater than the value of multiplication between the hardness of a low-strength side of the steel sheet after hot stamping and the thickness of the sheet.
摘要翻译：要解决的问题：为了提供热冲压的定制坯料，其通过对接激光焊接镀铝钢板而形成，而不去除待焊接区域的镀层，并且具有足够的焊接接合强度。：在通过对接激光焊接不同强度的镀铝钢板形成的用于热冲压的定制坯料中，通过组合要对接的钢板的种类来进行焊接，使得：平均Al浓度通过对接激光焊接形成的焊接金属为0.3质量％〜1.5质量％焊缝金属的Acpoint温度为1250℃以下; 热冲压后的焊接金属的硬度与焊接金属的最薄区域的厚度之间的乘积值大于热冲压后的钢板的低强度侧的硬度和片材的厚度。

3. 发明专利

JP2013215755A Laser welding method, lap welded joint, and laser welding equipment 审中-公开
标题翻译：激光焊接方法，LAP焊接接头和激光焊接设备
公开(公告)号：JP2013215755A
公开(公告)日：2013-10-24
申请号：JP2012086767
申请日：2012-04-05
申请人： Nippon Steel & Sumitomo Metal Corp , 新日鐵住金株式会社
发明人： MIYAZAKI YASUNOBU , NAITO YASUAKI
IPC分类号： B23K26/20 , B23K26/00 , B23K26/08 , B23K26/14
摘要： PROBLEM TO BE SOLVED: To prevent joint strength from deteriorating by suppressing the formation of a crater with excessive depth more than before in the end of a welding bead.SOLUTION: A linear pre-processing welding bead 310 is formed in part of a region of a welding scheduled place by scanning a laser beam in a direction from one end side to the other end side of the welding scheduled place. Then, by scanning the laser beam in a direction from the other end side to the one end side of the welding scheduled place, a linear final welding bead 320 is formed in a region from the other end side to the one end side of the welding scheduled place. At this time, an overlapping margin Lis set to 8 mm or more. An overrun length Lis set within ±2 mm.
摘要翻译：要解决的问题：通过在焊缝末端抑制比以前更多的深度的凹坑的形成来防止接合强度的劣化。解决方案：线性预处理焊道310形成在通过在焊接预定位置的一端侧到另一端侧的方向上扫描激光束来形成焊接预定位置。然后，通过从焊接预定位置的另一端侧到一端侧的方向扫描激光束，在从焊接的另一端侧到一端侧的区域中形成线性最终焊道320 预定的地方。此时，重叠的边距Lis设定为8mm以上。超限长度设置在±2 mm内。

4. 发明专利

JP2013022637A Prediction method of cross tensile strength in spot welding of quenched steel plate, and spot welding method using the same 有权
标题翻译：淬火钢板点火焊接中的横向强度预测方法及使用其的点焊方法
公开(公告)号：JP2013022637A
公开(公告)日：2013-02-04
申请号：JP2011162339
申请日：2011-07-25
申请人： Nippon Steel & Sumitomo Metal Corp , 新日鐵住金株式会社
发明人： WATANABE FUMINORI , HAMAYA HIDEKI , MIYAZAKI YASUNOBU , OIKAWA HATSUHIKO , NOSE TETSUO , MAKI JUN
IPC分类号： B23K11/24
摘要： PROBLEM TO BE SOLVED: To allow a cross tensile strength CTS to exceed a set value by evaluating the influence on the CTS of a softened part generated in a heat-affected zone in spot welding of a quenched steel plate, and by predicting the CTS from welding conditions.SOLUTION: (A) Before the main welding, (a1) the quenched steel plate is spot-welded with various energization conditions, and the softening amount ΔHv of the softened part and the CTS of a welded joint are measured, (a2) a temperature history of the welding heat-affected zone is calculated, and a tempering parameter λ is calculated from the temperature history to find the relation between the tempering parameter λ and the softening amount ΔHv, (a3) the softening degree N is calculated from the softening amount ΔHv to find the relation between the CTS and the softening degree N. (B) During the main welding, (b1) the tempering parameter λ is calculated from the energization conditions of the set main welding, (b2) the softening amount ΔHv is found from the tempering parameter λ, (b3) the softening degree N is found from the softening amount ΔHv, and (b4) the CTS of the spot-welded joint is found when welding is performed with the energization conditions set from the softening degree N.
摘要翻译：要解决的问题：为了通过评估对淬火钢板的点焊中的热影响区中产生的软化部分的CTS的影响，并且通过预测来确定交叉拉伸强度CTS超过设定值 CTS从焊接条件。（A）在主焊接前，（a1）淬火钢板点焊，各种通电条件下，测量软化部的软化量ΔHv和焊接接头的CTS，测量（a2 ）计算焊接热影响区的温度历史，根据温度历程计算回火参数λ，以找出回火参数λ与软化量ΔHv之间的关系，（a3）软化度N由求出CTS与软化度N的关系的软化量ΔHv。（B）在主焊接中，（b1）根据设定的主焊接的通电条件计算回火参数λ，（b2）软化量从回火参数λ发现ΔHv（b3）从软化量ΔHv发现软化度N，（b4）当用软化设定的通电条件进行焊接时，发现点焊接头的CTS 版权所有（C）2013，JPO＆INPIT

5. 发明专利

JP2013010139A Arc spot-welded joint excellent in joint strength and method for manufacturing the same 有权
标题翻译：弧焊接头优点联合强度及其制造方法
公开(公告)号：JP2013010139A
公开(公告)日：2013-01-17
申请号：JP2012120167
申请日：2012-05-25
申请人： Nippon Steel & Sumitomo Metal Corp , 新日鐵住金株式会社
发明人： FURUSAKO SEIJI , KODAMA SHINJI , MIYAZAKI YASUNOBU , OIKAWA HATSUHIKO
IPC分类号： B23K9/007 , B23K9/00 , B23K9/23 , C22C38/00 , C22C38/38
摘要： PROBLEM TO BE SOLVED: To provide an arc spot-welded joint which can secure both cross tensile strength and shear tensile strength, and excellent in joint strength; and to provide a method for manufacturing the same.SOLUTION: This arc spot-welded joint is manufactured as follows: two high-strength steel plates 1 with ≥0.07 mass% carbon content in the steel plate component are superposed and arc spot-welded to form a weld bead 3 of almost circular shape in planar view; the weld bead 3 is formed by melting until rear surface 1d side of a second steel plate 1B so as to project from respective surfaces of a first steel plate A and the second steel plate B; when the bead diameter at the surface 1a of the first steel plate 1A is W1 (mm), the bead diameter at the rear surface 1d of the second steel plate 1B is W2 (mm), and the plate thickness of the high-strength steel plates 1 (1A, 1B) is t (mm), the relationships among the bead diameters W1, W2 and the plate thickness t are defined in a proper range, respectively. Furthermore the relationship between base material hardness Hv (BM) and welding metal hardness Hv (WM) of the weld bead is defined in a proper range.
摘要翻译：要解决的问题：提供一种能够确保交叉拉伸强度和剪切抗拉强度以及接合强度优异的电弧点焊接头。并提供其制造方法。
解决方案：该电弧点焊接头如下制造：将钢板部件中具有≥0.07质量％碳含量的两个高强度钢板1叠加并电弧点焊以形成几乎平面视图中的圆形; 焊接珠3通过熔化直到第二钢板1B的后表面1d侧从第一钢板A和第二钢板B的各个表面突出而形成; 当第一钢板1A的表面1a处的胎圈直径为W1（mm）时，第二钢板1B的后表面1d的胎圈直径为W2（mm），高强度钢板的板厚板1（1A，1B）为t（mm），胎圈直径W1，W2和板厚t之间的关系分别被限定在适当的范围内。此外，焊缝的基材硬度Hv（BM）和焊接金属硬度Hv（WM）之间的关系被定义在适当的范围内。版权所有（C）2013，JPO＆INPIT

6. 发明专利

JP2013212529A Friction stir welding tool and method for friction stir welding of dissimilar members 有权
标题翻译：摩擦焊接工具及其摩擦焊接方法
公开(公告)号：JP2013212529A
公开(公告)日：2013-10-17
申请号：JP2012084821
申请日：2012-04-03
申请人： Nippon Steel & Sumitomo Metal Corp , 新日鐵住金株式会社
发明人： NAITO YASUAKI , MIYAZAKI YASUNOBU
IPC分类号： B23K20/12
摘要： PROBLEM TO BE SOLVED: To join two members different in mechanical properties (plastic fluidity) such as a steel member and a light metal member firmly by friction stir welding in a state of maintaining certain bonding strength.SOLUTION: A cylindrical friction stir welding tool which rotates axially is provided with an axisymmetrically-shaped convex portion at the center of a front end surface abutting with a member to be joined and is also provided with another convex portion concentric with the convex portion around the convex portion.
摘要翻译：要解决的问题：通过摩擦搅拌焊接，在保持一定的粘合强度的状态下，通过摩擦搅拌焊接，将诸如钢构件和轻金属构件的机械性能（塑性流动性）不同的两个构件连接起来。解决方案：一种圆柱形摩擦搅拌焊接工具在与被接合部件抵接的前端面的中心处具有轴对称形状的凸部，并且还具有与凸部周围的凸部同心的另一凸部。

7. 发明专利

JP2013158776A Indirect spot welding method 有权
标题翻译：间接点焊工艺
公开(公告)号：JP2013158776A
公开(公告)日：2013-08-19
申请号：JP2012020134
申请日：2012-02-01
申请人： Nippon Steel & Sumitomo Metal Corp , 新日鐵住金株式会社 , Fuji Heavy Ind Ltd , 富士重工業株式会社
发明人： FURUSAKO SEIJI , MIYAZAKI YASUNOBU , OIKAWA HATSUHIKO , TAKAHASHI YASUO , KAWADA TETSURO , MITSUI YUJIRO , SUZUKI ATSUSHI
IPC分类号： B23K11/11 , B23K11/30 , B23K35/04
摘要： PROBLEM TO BE SOLVED: To provide an indirect spot welding method, capable of preventing a current density from being dispersed according to increase or decrease in the contact area between a welding electrode and a steel plate and between steel plates, stably securing a nugget diameter without generation of dust, and forming a weld part with excellent strength characteristics.SOLUTION: A feed electrode 4 is disposed at a position separated from an overlap portion A with a plate like member 2 on a closed sectional member 1 side, a welding electrode 5 is disposed at the overlap portion A with the closed sectional member 1 on the plate member 2 side, and pressed with pressure, and a current is carried between the welding electrode 5 and the feed electrode 4 to thereby mutually weld both the members. In that case, as the welding electrode 5, an electrode is used in which the diameter of an electrode tip portion 51 is 3 mm or more and 6 mm or less, the tip radius of the electrode tip portion 51 is 10 mm or more, and the inclination θ of an inclined surface 51b extended from the periphery of the electrode tip portion 51 toward an electrode outer circumference 52 to a direction orthogonal to the electrode axis is in the range of 10-30°. Then the welding is performed using a DC power source.
摘要翻译：要解决的问题：为了提供间接点焊方法，能够根据焊接电极和钢板之间以及钢板之间的接触面积的增加或减小来防止电流密度分散，稳定地确保熔核直径而没有产生粉尘，形成具有优异强度特性的焊接部分。解决方案：馈电电极4设置在与闭合截面部件1侧的板状部件2的重叠部分A分开的位置，焊接电极5为配置在重叠部分A上，封闭的截面构件1在板构件2侧，并且被压力压迫，并且在焊接电极5和馈电电极4之间承载电流，从而相互焊接这两个构件。在这种情况下，作为焊接电极5，使用电极端部51的直径为3mm以上且6mm以下的电极，电极端部51的前端半径为10mm以上，和倾向和倾向; 从电极端部51的周边朝向电极外周52延伸到与电极轴正交的方向的倾斜面51b为10〜30°。然后使用直流电源进行焊接。

8. 发明专利

JP2013130238A Dissimilar metal bonded joint, and method of manufacturing the same 有权
标题翻译： DISSIMILAR金属粘结接头及其制造方法
公开(公告)号：JP2013130238A
公开(公告)日：2013-07-04
申请号：JP2011279731
申请日：2011-12-21
申请人： Nippon Steel & Sumitomo Metal Corp , 新日鐵住金株式会社 , Furukawa-Sky Aluminum Corp , 古河スカイ株式会社
发明人： SAKIYAMA TATSUYA , MIYAZAKI YASUNOBU , OKADA TOSHIYA
IPC分类号： F16B5/02 , B21D39/03 , B21J15/14 , F16J15/14
CPC分类号： B21J15/025 , F16B5/045 , F16B19/1054
摘要： PROBLEM TO BE SOLVED: To provide a dissimilar metal bonded joint and a method of manufacturing the same, allowing reliably preventing dissimilar metal corrosion at the joint of dissimilar metals.SOLUTION: The dissimilar metal bonded joint includes: a first metal member 1; a second metal member 2 which is superimposed on the first metal member 1 and made of different dissimilar metal from the first metal member 1; a mechanical joint part 4 which fastens the first and second metal members 1, 2; and a seal layer 5 formed between the joint surfaces 1a, 2a of the first and second metal members 1, 2. A first annular projection 1bsurrounding the mechanical joint part 4 and a second annular projection 1bsurrounding the first annular projection 1bare provided to the joint surfaces 1a, 2a of the first metal member 1 or the second metal member 2. The seal layer 5 is formed between the first and second metal members 1, 2 between the first and second annular projections 1b, 1b.
摘要翻译：要解决的问题：为了提供异种金属接合接头及其制造方法，允许可靠地防止异种金属接头处的异种金属腐蚀。解决方案：异种金属接合接头包括：第一金属构件1; 第二金属构件2，其从第一金属构件1叠加在第一金属构件1上并由不同的异种金属制成; 紧固第一和第二金属构件1,2的机械接合部4; 以及密封层5，其形成在第一和第二金属构件1,2的接合表面1a，2a之间。围绕机械接合部分4的第一环形突起和围绕第一环形突起1b的第二环形突起设置在接合表面第一金属构件1或第二金属构件2的1a，2a。密封层5形成在第一和第二环形突起1b，1b之间的第一和第二金属构件1,2之间。

9. 发明专利

JP2014036983A Induction heating apparatus 有权
标题翻译：感应加热装置
公开(公告)号：JP2014036983A
公开(公告)日：2014-02-27
申请号：JP2012180491
申请日：2012-08-16
申请人： Nippon Steel & Sumitomo Metal , 新日鐵住金株式会社
发明人： WATANABE FUMINORI , HIROTA YOSHIAKI , ASANO TAKUYA , KARUBE YOSHIFUMI , HAMAYA HIDEKI , MIYAZAKI YASUNOBU
IPC分类号： B23K13/02 , B21C37/08 , B23K13/00 , B23K13/08
摘要： PROBLEM TO BE SOLVED: To sufficiently secure a space in a region above a weld seam covered by a work coil when an electric-resistance weld pipe is manufactured by a work coil method.SOLUTION: Paths of feeding plates 131a, 131b, which connect a coil part 120 (a work coil) with a power source 110, are formed at positions which are located above a weld seam L and detour a region above the coil part 120 (the work coil).
摘要翻译：要解决的问题：当通过工作线圈法制造电阻焊接管时，为了充分确保在被工作线圈覆盖的焊缝上方的区域中的空间。解决方案：将连接a的馈电板131a，131b的路径在位于焊缝L上方的位置上形成具有动力源110的线圈部分120（工作线圈），绕过线圈部分120（工作线圈）上方的区域。

10. 发明专利

JP2014205156A 接合体の製造方法、抵抗スポット溶接装置及びそれに用いられる複合電極有权
标题翻译：用于制造接合体，电阻点焊设备和用于其的复合电极的方法
公开(公告)号：JP2014205156A
公开(公告)日：2014-10-30
申请号：JP2013082857
申请日：2013-04-11
申请人：新日鐵住金株式会社 , Nippon Steel & Sumitomo Metal
发明人： NISHIHATA HITOMI , TAIYAMA MASANORI , MURAYAMA HAJIME , MIYAZAKI YASUNOBU
IPC分类号： B23K11/11 , B23K11/16 , B23K11/30
摘要：【課題】3枚以上の金属板を含む板組をスポット溶接する場合であっても、ナゲットを安定して形成できる接合体の製造方法を提供する。【解決手段】本実施形態による接合体の製造方法では、薄板(2)と複数の厚板(3)とを含む板組(1)のうち、薄板(2)の表面に、凸形状の先端面を有する集中電極(30)を接触し、厚板(3B)の表面に、中心軸(CL40)の周りに通電領域(410)が配置された先端面(400)を有する分散電極(40)を接触して抵抗スポット溶接を実施する。続いて、分散電極(40)に替えて、新たな集中電極を厚板(3B)の表面に接触して、抵抗スポット溶接を実施する。【選択図】図9
摘要翻译：要解决的问题：提供即使在对包括三个或更多个金属板的板组进行点焊时也能够稳定地形成熔核的接合体的制造方法。本发明提供一种制造接合体的方法，其特征在于，本实施例中，具有凸形末端表面的会聚电极（30）与包括薄板（2）的板组（1）的薄板（2）的表面和多个厚板 3），并且具有在中心轴线（CL40）周围配置有通电区域（410）的前端面（400）的分散电极（40）与厚板（3B）的表面接触，进行电阻点焊。随后，代替分散电极（40），使新的会聚电极与厚板（3B）的表面接触以进行电阻点焊。

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