Both-Sides Welding Technology for Resin Fuel Tubes

Daisuke Tomomatsu

doi:10.4271/2016-01-0506

This study developed technology for simultaneously welding heterogeneous resin tubes in order to weld and integrate resin tubes with two different specifications (low temperature and high temperature). The aim of integration was cost and weight reduction. The cost reduction due to reducing the number of parts exceeded the increase in material cost due to a change to resin materials.

Base material fracture of the resin tubes was set as the breaking format condition, and the welding parameters of the joint part rotations and the friction time between the joint part and the resin tubes were specified as the weld strength judgment standard. In addition, the fused thickness determined by observing the cross-section after welding was specified as the weld quality judgment standard. The range over which weld boundary peeling does not occur and weld strength is manifest was clarified by controlling the welding parameters and the fused thickness.

The use of this technology made it possible to reduce the part cost by 10% and the part weight by 50%.

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Both-Sides Welding Technology for Resin Fuel Tubes 2016-01-0506

SAE MOBILUS