STEEL PLATE FOR FRICTION-JOINING AND ITS PRODUCTION METHOD, AND HIGH STRENGTH BOLT JOINTED STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide a steel plate for friction-joining with which a friction coefficient is secured so as to become≥0.7 and mass-production can be realized at a low cost. SOLUTION: In the steel plate for friction-joining used as structural steel work, this steel plate is formed as the first projecting and recessing lines 32 having 0.5-4 mm interval and≥0.15 mm height at the tip end of the projecting part on the friction surface and further, the second projection and recession 33 having finer than the first projecting and the recessing lines 32 on the projecting part 32a is formed. COPYRIGHT: (C)2005,JPO&NCIPI