IN2015DN00483A - - Google Patents

Info

Publication number
IN2015DN00483A
IN2015DN00483A IN483DEN2015A IN2015DN00483A IN 2015DN00483 A IN2015DN00483 A IN 2015DN00483A IN 483DEN2015 A IN483DEN2015 A IN 483DEN2015A IN 2015DN00483 A IN2015DN00483 A IN 2015DN00483A
Authority
IN
India
Prior art keywords
spot welding
nugget
vickers hardness
softened
steel sheet
Prior art date
Application number
Inventor
Tohru Okada
Hideki Ueda
Original Assignee
Nippon Steel & Sumitomo Metal Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Steel & Sumitomo Metal Corp filed Critical Nippon Steel & Sumitomo Metal Corp
Publication of IN2015DN00483A publication Critical patent/IN2015DN00483A/en

Links

Classifications

    • 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
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/10—Spot welding; Stitch welding
    • B23K11/11—Spot 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
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/10—Spot welding; Stitch welding
    • B23K11/11—Spot welding
    • B23K11/115—Spot welding by means of two electrodes placed opposite one another on both sides of the welded 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
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/16—Resistance welding; Severing by resistance heating taking account of the properties of the material to be welded
    • 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
    • B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
    • B23K31/12—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to investigating the properties, e.g. the weldability, of materials
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00—Heat treatment of ferrous alloys
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/50—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for welded joints
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C9/00—Alloys based on copper
    • 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
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/006—Vehicles
    • 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
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/18—Sheet panels
    • 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
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/02—Iron or ferrous alloys
    • B23K2103/04—Steel or steel alloys
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/008—Martensite

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Resistance Welding (AREA)

Abstract

A lap welded member formed by joining lapped parts of a plurality of steel sheet members at a spot welding part (10) wherein: at least one of the steel sheet members contains martensite; and the spot welding part (10) comprises a nugget (12) formed by spot welding a heat affected part formed around the nugget (12) a most softened part having the lowest Vickers hardness in the heat affected part and a tempered area which is formed between the center of the nugget and the most softened part and comprises tempered martensite and the Vickers hardness of which is not more than 120% regarding the Vickers hardness of the most softened part as 100%. By using this structure the peel strength at the spot welding part can be improved.
IN483DEN2015 2012-08-10 2013-08-12 IN2015DN00483A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012178691 2012-08-10
PCT/JP2013/071841 WO2014025063A1 (en) 2012-08-10 2013-08-12 Lap welded member, automobile component, method for welding lapped part, and method for manufacturing lap welded member

Publications (1)

Publication Number Publication Date
IN2015DN00483A true IN2015DN00483A (en) 2015-06-26

Family

ID=50068276

Family Applications (1)

Application Number Title Priority Date Filing Date
IN483DEN2015 IN2015DN00483A (en) 2012-08-10 2013-08-12

Country Status (7)

Country Link
US (2) US10543562B2 (en)
JP (1) JP5713147B2 (en)
KR (1) KR101737712B1 (en)
CN (1) CN104520052B (en)
IN (1) IN2015DN00483A (en)
MX (1) MX2015001640A (en)
WO (1) WO2014025063A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11484965B2 (en) 2015-06-08 2022-11-01 Origin Company, Limited Method for manufacturing joined member and apparatus for manufacturing the same

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US20160368080A1 (en) * 2013-06-27 2016-12-22 Neturen Co., Ltd. Welding structural member and welding method
JP6379819B2 (en) * 2014-07-31 2018-08-29 新日鐵住金株式会社 Lap welding member, lap resistance seam welding method of lap welding member, and lap welding member for automobile having lap welding part
JP2016055337A (en) * 2014-09-11 2016-04-21 高周波熱錬株式会社 Welding method and welded structure
JP6179581B2 (en) * 2014-12-09 2017-08-16 Ｊｆｅスチール株式会社 Thin steel plate for spot welded joint, method for determining fracture mode of spot welded joint, method for predicting peel fracture strength of spot welded joint, and method for predicting plug fracture strength of spot welded joint
CN104668798A (en) * 2015-02-03 2015-06-03 上海诚烨汽车零部件有限公司 Method of optimizing welding process of high-strength steel
RU2685928C2 (en) * 2015-03-30 2019-04-23 Ниппон Стил Энд Сумитомо Метал Корпорейшн Method of point welding
JP6451488B2 (en) * 2015-05-12 2019-01-16 Ｊｆｅスチール株式会社 Spot welded parts
JP6451487B2 (en) * 2015-05-12 2019-01-16 Ｊｆｅスチール株式会社 Judgment method for spot welds with excellent delamination strength
US10272515B2 (en) * 2015-09-15 2019-04-30 GM Global Technology Operations LLC Power pulse method for controlling resistance weld nugget growth and properties during steel spot welding
EP3147065B1 (en) * 2015-09-23 2019-07-24 Neturen Co., Ltd. Welding method
EP3363575B1 (en) * 2015-10-16 2021-02-17 Nippon Steel Corporation Spot welded joints and spot welding methods
CN105252152B (en) * 2015-11-26 2017-08-01 重庆大江工业有限责任公司 A kind of welding processing for reducing the deformation of panzer car body
JP2017108595A (en) * 2015-12-11 2017-06-15 日本電産株式会社 Vibration motor
JP6055154B1 (en) * 2016-08-29 2016-12-27 オリジン電気株式会社 Bonding member manufacturing method and bonding member manufacturing apparatus
WO2018159719A1 (en) * 2017-02-28 2018-09-07 新日鐵住金株式会社 Fillet welded joint and manufacturing method thereof
JP6665140B2 (en) * 2017-09-13 2020-03-13 本田技研工業株式会社 Resistance welding method and resistance welding equipment
JP7112819B2 (en) * 2017-11-29 2022-08-04 ダイハツ工業株式会社 Spot welding method and spot welding device
CN108161201B (en) * 2017-12-12 2021-02-26 广州亨龙智能装备股份有限公司 Application of capacitive energy storage welding process in welding of pin shaft and hot-formed martensitic steel
EP3804899B1 (en) * 2018-05-31 2023-08-30 Nippon Steel Corporation Spot welded joint, vehicle framework component provided with spot welded joint, and method of manufacturing spot welded joint
WO2020090916A1 (en) * 2018-10-31 2020-05-07 日本製鉄株式会社 Automobile frame member
JP6769584B1 (en) * 2019-03-14 2020-10-14 日本製鉄株式会社 Welding joint manufacturing method, welding joint, tempering equipment and welding equipment
KR102619894B1 (en) * 2019-03-26 2024-01-04 닛폰세이테츠 가부시키가이샤 Steel plates and members
JP6885523B2 (en) * 2019-05-24 2021-06-16 日本製鉄株式会社 Manufacturing method of spot welded joints and spot welded joints
MX2021014596A (en) * 2019-05-28 2022-01-11 Jfe Steel Corp Resistance spot welding unit and resistance spot welding method, and resistance spot welded joint and method for manufacturing resistance spot welded joint.
CN110548976A (en) * 2019-08-08 2019-12-10 沈阳大学 Resistance spot welding process for 1800 MPa-level ultrahigh-strength hot-formed steel plate
EP4065305A4 (en) * 2019-11-27 2024-03-13 Cascade Corporation Connection between forks and hangers on forks
JP6958765B1 (en) * 2020-03-05 2021-11-02 Ｊｆｅスチール株式会社 Resistance spot welding method and resistance spot welding joint manufacturing method
CN112222667B (en) * 2020-09-07 2022-06-28 中国科学院上海光学精密机械研究所 Spot welding joint of high-strength steel plate and manufacturing method thereof
JP7376458B2 (en) * 2020-11-27 2023-11-08 トヨタ自動車株式会社 Resistance spot welding method
CN116761691A (en) * 2021-04-22 2023-09-15 日本制铁株式会社 Skeleton member
EP4371688A1 (en) 2021-10-12 2024-05-22 JFE Steel Corporation Resistance spot-welded joint and resistance spot welding method therefor
KR20240051267A (en) 2021-10-12 2024-04-19 제이에프이 스틸 가부시키가이샤 Resistance spot welding seam and its resistance spot welding method
WO2023181680A1 (en) * 2022-03-25 2023-09-28 Ｊｆｅスチール株式会社 Resistance spot-welded joint and method for producing same
WO2024127866A1 (en) * 2022-12-15 2024-06-20 Ｊｆｅスチール株式会社 Resistance spot-welded joint and resistance spot welding method therefor
JP7480929B1 (en) 2022-12-15 2024-05-10 Ｊｆｅスチール株式会社 Resistance spot welded joint and resistance spot welding method thereof

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JP2002103054A (en) 2000-09-29 2002-04-09 Nippon Steel Corp Method for spot welding of high strength steel plate
JP2008229720A (en) * 2007-02-22 2008-10-02 Kobe Steel Ltd Spot-welded joint of high-strength steel sheets excellent in tensile strength, automotive component having the same joint, and spot-welding method of high-strength steel sheets
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JP5201116B2 (en) 2008-10-16 2013-06-05 Ｊｆｅスチール株式会社 Resistance spot welding method for high strength steel sheet
US9498840B2 (en) 2009-07-31 2016-11-22 Neturen Co., Ltd. Welding structural part and welding method of the same
EP2474381B8 (en) 2009-08-31 2019-07-24 Nippon Steel Corporation Spot-welded joint and spot welding method
JP2012187617A (en) 2011-03-11 2012-10-04 Nissan Motor Co Ltd Joined body of high tensile strength steel sheet and resistance welding method for high tensile strength steel sheet
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11484965B2 (en) 2015-06-08 2022-11-01 Origin Company, Limited Method for manufacturing joined member and apparatus for manufacturing the same

Also Published As

Publication number Publication date
CN104520052B (en) 2017-04-19
US20150217396A1 (en) 2015-08-06
US10543562B2 (en) 2020-01-28
MX2015001640A (en) 2015-04-08
KR20150023926A (en) 2015-03-05
US20200156177A1 (en) 2020-05-21
CN104520052A (en) 2015-04-15
WO2014025063A1 (en) 2014-02-13
JP5713147B2 (en) 2015-05-07
JPWO2014025063A1 (en) 2016-07-25
KR101737712B1 (en) 2017-05-18

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