Surface preparation method

• Main Author: DASH; EDWARD
• Format: Patent
• Language: English
• Published: 03.08.1976
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; DYES; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; PAINTS; PERFORMING OPERATIONS; POLISHES; SOLDERING OR UNSOLDERING; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TRANSPORTING; USE OF MATERIALS AS ADHESIVES; WELDING; WORKING BY LASER BEAM

A method of preparing surfaces of metallic components which are to be adhesive bonded and spot welded is described. The faying surfaces are first prepared for adhesive metal bonding using the most modern effective solutions available for highest strength and corrosion resistance. A primer may be applied upon the faying surfaces for improved corrosion resistance. The surfaces are then abraded in selected areas for spot welding. After spot welding, a bonding adhesive is introduced along one edge of the joint and capillary action assisted by a vacuum draws the adhesive over the entire area of the joint. Alternately, after abrading the selected areas, the adhesive is applied to the faying surfaces, and the spot welding is then accomplished at the abraded areas.