Title:
WELDED STRUCTURAL MATERIAL
Document Type and Number:
Japanese Patent JP3184408
Kind Code:
B2
Abstract:
PURPOSE: To restrain the lowering of rigidity of the whole structural material and to surely reduce the concn. of stress without developing the fatigue fracture at the time of cooling after welding and at the time of acting the tension load and the bending moment during using.
CONSTITUTION: The welded structural material 100 is a butting welded material by forming a hollow part 5 while facing recessed surfaces 1B, 2B of base materials 1, 2 remaining so as to form non-depositing part at the upper end surfaces 1A, 2A and filling the welding bead 3 from the lower side. The recessed surfaces 1B, 2B provides almost hemi-cyclic state hemi-cyclic part 6. The hollow part 5 has the ratio L/t=0.4 of the distance L from a penetration stopped end 4 to the tip part 7 of the hemi-cyclic parts 6 and the plate thickness (t) of the base materials 1, 2 and plays a part for contact prevention means at the time of welding the hemi-cyclic parts 6, 6 and welded bead 3. The non-depositing part 9 is opened to the hollow part 5 at the lower end and forms a space opened to the upper surface of two base materials 1, 2 at the upper end, and the opening part to the hollow part 5 is arranged so as to shift by the distance (x) to the left side from the axial line (p).
Inventors:
Ejima Hidehiro
Saburo Usami
Jun Sakamoto
Saburo Usami
Jun Sakamoto
Application Number:
JP22808194A
Publication Date:
July 09, 2001
Filing Date:
September 22, 1994
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
B23K31/00; B23K9/00; B23K9/02; B23K33/00; B23K37/06; (IPC1-7): B23K9/00; B23K31/00; B23K37/06
Domestic Patent References:
| JP6195796A | ||||
| JP63163070A | ||||
| JP62248584A | ||||
| JP255680A | ||||
| JP51151237A | ||||
| JP5731492A | ||||
| JP370861U | ||||
| JP5632073B2 | ||||
| JP579038Y2 |
Attorney, Agent or Firm:
Kasuga