METHOD FOR MAKING HONEYCOMB STRUCTURES WITH SUPERTHIN-WALL FILLER BY DIFFUSION WELDING

摘要

machine engineering, namely, manufacture of laminate honeycomb panels of titanium alloys. SUBSTANCE: method for making honeycomb filler of band comprises steps of subjecting band to heat treatment by heating it until temperature more than that of alpha _-> beta conversion by means of laser beam; placing filler between layers of facing and performing diffusion welding; focusing laser beam with the aid of planoconvex lens. Focal point is in the form of rectangle whose length is equal to width of filler band and whose width is more than thickness of filler by 4-10 times. Heat treatment is performed simultaneously along the whole width of band. Interval between dash lines is more than thickness of filler by 6-20 times. At process of diffusion welding filler band remains stable at upsetting due to worked portions of band; non-worked portions of band allow to form high-quality joint with strength equal to that of base material at welding along any surface. EFFECT: enhanced efficiency of method.