Study on Fatigue Strength of Lapped Weld Joint in Use of Fatigue Improvement Welding Process (MX-MIG Process)

疲労強度改善溶接法（MX-MIG 法）を用いた重ねすみ肉溶接部の疲労強度に関する研究

Fatigue strength of lapped weld joint in use of fatigue improvement welding process (MX-MIG process) which can improve the weld toe shape and decrease the residual tensile stress was investigated. As a result, fatigue limit at the weld toe of MX-MIG process could improve to 1.6-1.8 times compared with conventional welding process. Moreover, fatigue strength at the start point of lapped weld joint which has the possibility of crack initiation site in actual automobile components was improved with the combination of MX-MIG process and the extension bead. The light-weighting of chassis parts will be possible by application of MX-MIG process.溶接部の止端形状改善と引張残留応力低減が可能な疲労改善溶接材料を用い、重ねすみ肉溶接部の疲労強度を検討した。その結果、止端部の疲労限度は１．６～１．８倍に改善できることがわかった。また、実部品でき裂発生が懸念される溶接スタート部では、延長ビードを用いた場合に、疲労強度を改善することができた。

• Record URL:
  • https://doi.org/10.11351/jsaeronbun.43.527
• Summary URL:
  • http://scholar.google.com/scholar_lookup?title=Study+on+Fatigue+Strength+of+Lapped+Weld+Joint+in+Use+of+Fatigue+Improvement+Welding+Process+(MX-MIG+Process)&author=M.+Kinefuchi&author=R.+Suzuki&author=R.+Kasai&publication_year=2012
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/02878321
• Authors:
  • Kinefuchi, Masao
  • Suzuki, Reiichi
  • Kasai, Ryu
• Publication Date: 2012

Language

• English
• Japanese

Media Info

• Media Type: Web
• Features: Figures; References; Tables;
• Pagination: pp 527-532
• Serial:
  • Transactions of Society of Automotive Engineers of Japan
  • Volume: 43
  • Issue Number: 2
  • Publisher: Society of Automotive Engineers of Japan
  • ISSN: 0287-8321
  • EISSN: 1883-0811
  • Serial URL: https://www.jstage.jst.go.jp/browse/jsaeronbun
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Automotive materials; Chassis; Fatigue strength; Steel sheets; Vehicle components; Weld strength; Welding
• Subject Areas: Highways; Materials; Vehicles and Equipment; I34: Steels and Metals; I91: Vehicle Design and Safety;

Filing Info

• Accession Number: 01528183
• Record Type: Publication
• Source Agency: Japan Science and Technology Agency (JST)
• Files: TRIS, JSTAGE
• Created Date: Jun 13 2014 8:53AM