５０ｋｇｆ／ｍｍ｀２´級球状黒鉛鋳鉄の電子ビーム溶接に関する研究　ポロシティにおよぼす溶接条件の影響

• 柴田 文男

  日本大学理工学部

• 安藤 精一

  日本大学生産工学部

• 藤崎 登

  日本大学大学院

書誌事項

タイトル別名

• Study on the Electron Beam Welding of 50kgf/mm<SUP>2</SUP> Class Nodular Cast Iron
• ポロシテイにおよぼす溶接条件の影響

抄録

This report describes the effect of welding conditions on porosities for electron beam welding of 50 Kgf/mm² class nodular cast iron (6, 12, 18 mm thickness) with SUS304 (0.5 mm thickness) as insert metal.<BR>The results obtained in this experimental investigation are summarized as follows;<BR>(1) Amount of porosities of the fusion zone remarkably decreases by pretreatment annealing (950°C ×5 hr).<BR>(2) For the range of ab value from 0.7 to 0.9, well type beads are formed and no crack is observed.<BR>(3) For the range of ab value more than unity, wedge type beads are formed and weld cracks occurred and porosities increased.<BR>(4) Amount of porosities has tendency to decrease as beam current increase and to increase as welding speed increase.<BR>(5) For base metal of 6, 12 mm thickness, amount of porosities is remarkably decreased by 1 pass weld and for 18 mm thickness remarkably decreased by 2 passes weld.<BR>(6) Under optimum welding conditions, sufficient strength of the welded joint can be obtained.

収録刊行物

• 溶接学会誌

  溶接学会誌 51 (9), 748-754, 1982

  一般社団法人 溶接学会

キーワード

• Metals and Alloys
• Surfaces, Coatings and Films
• Mechanical Engineering
• Mechanics of Materials

詳細情報

• CRID: 1390282681477031040
• NII論文ID: 130003763655
• DOI: 10.2207/qjjws1943.51.748
• COI: 1:CAS:528:DyaL3sXjvVGhuw%3D%3D
• ISSN: 18837204
• ISSN: 00214787
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可