| 摘要 |
PURPOSE:To permit easy intrusion of a paint into an easy contacting range and to improve quality in rust prevention by forming plural adjacent beads to one of the two members beyond the rang where said members contact with each other and spot welding the same to the other member then subjecting the members to electrodeposition painting. CONSTITUTION:Plural lines of arc beads 11 having continuous sectional shapes are adjacently formed in parallel to a floor panel 10 of a passanger car and the beads 11 are brought into contact with the flange 31 of a reinforcing channel 30. The range LpXWp of said beads 11 is formed beyond the contact range LcXW of the flange 31. The two members are spot welded 40a, b, c, d, e, f in the prescribed positions. The welding is completed by pressing the beads 11 with electrodes to crush the same and to form local small planes and pressing the same to the other member. The fixed members 10, 30 are subjected to electrodeposition painting to intrude and deposit the paint down to the inside surface of spaces 13 through the openings 12 of the beads 11, by which a satisfactory rust preventive treatment is accomplished. |
