Abstract
A hot dip Sn-Zn alloy (8% Zn) coated steel sheet having superior corrosion resistance, formability and processability was developed as a lead-free fuel tank. As soldering material, an Sn-Ag alloy (3.5% Ag) having low temperature soldering characteristics and superior galvanic corrosion characteristics with the coating was developed.An issue in the production engineering area was that consecutive spot welding quantity declined to 1/2 the number of current welds. The cause was degradation of the electrode caused by an alloy reaction between the metallic electrode and the coated metal. The technical improvement measures to handle this were the surface contact resistance was controlled, the weld current was reduced, and the shape of the electrode tip was optimized.This enabled attainment of processability equivalent to current levels using existing equipment, and development of a fuel tank having superior corrosive durability, formability and welding characteristics, and overall performance.
References
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Publication Information
Article of Honda R&D Technical Review Vol.12 No.2 (165 - 174)
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Citation Information
Kazunori TAKIKAWA, Masayuki NARITA, Yoichi MURAOKA, Yasuji MORIMOTO, Teruaki IZAKI, Yasuo TAKAHASHI.
Development of a Lead-Free Fuel Tank
Honda R&D Technical Review Vol.12 No.2 pp.(165 - 174)2000.
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