| 摘要 |
<p>A composite chassis subframe structure for an automobile is provided having improved structural performance over comparable steel structures through the use of closed structural sections, reinforcing fiber orientation, and selective use of steel inserts (18). A foam core (12) is sandwiched between reinforcing fiber preforms (14, 16) and is further wrapped with additional reinforcing fiber cloth. Steel inserts (18) for attaching suspension and other chassis components are also wrapped and retained to the foam core (12). The sandwiched and wrapped foam core (12) is then placed in a mold where the steel inserts (18) are precision located on tooling pins, the mold is closed and plastic resin is injected thereby impregnating the fibers. Upon curing, the resin binds the structure which is now completed with the inserts locked in place to very close dimensions. <IMAGE></p> |
