METHOD FOR JOINING METAL MEMBER WITH RESIN MEMBER, AND JUNCTION OF METAL MEMBER WITH RESIN MEMBER JOINED USING SAID METHOD

摘要

In thermal pressure joining of joining a metal member to a resin member, a metal member (11) and a resin member (12) are stacked one on the other, a press member (160) applies heat and pressure locally on the metal member to soften and melt the resin member, the resin member is then solidified, the press member (160) is pressed into the metal member (11) to a depth shallower than a joint boundary (13) between the metal and resin members to deform a portion (110) of the metal member directly under the press member such that the portion protrudes toward the resin member, and resin (121) melted on a surface of the resin member in a region (60) of the joint boundary directly under the press member flows to an outer periphery (61) of the region (60).

主权项

1. A method of joining a metal member to a resin member comprising a pressing step, wherein
the method is thermal pressure joining, and in the pressing step, the metal and resin members are stacked one on the other, a press member applies heat and pressure locally on the metal member to soften and melt the resin member, the resin member is then solidified, the press member is pressed into the metal member to a depth shallower than a joint boundary between the metal and resin members to deform a portion of the metal member directly under the press member such that the portion protrudes toward the resin member, resin melted on a surface of the resin member in a region of the joint boundary directly under the press member flows to an outer periphery of the region, the method is friction-stir welding including
a first step of stacking the metal and resin members one on the other, anda second step of joining the metal member to the resin member by pressing a rotating rotary tool into the metal member to generate frictional heat, softening and melting the resin member with the frictional heat, and then solidifying the resin member, the rotating rotary tool is used as the press member, the second step includes
the pressing step as a press stirring step, andbefore the press stirring step, a preheating step of rotating the rotary tool with only its end touching a surface of the metal member, in the preheating step, the rotary tool is pressed at a first pressure and rotates for a first pressing time, and in the press stirring step, the rotary tool is pressed at a second pressure higher than the first pressure and rotates for a second pressing time shorter than the first pressing time.