| 摘要 |
The invention concerns a composite casting comprising:
a steel member;
an end cap fastened to an end portion of the steel member; and
a cast coupling member cast about the end portion of the steel member including the end cap, thereby positively and rigidly locking and securing said cast coupling member to said steel member.
The invention also concerns an engine cradle for a motor vehicle, comprising:
a frame assembly having a pair of spaced rails secured by spaced cross members;
at least one of said spaced rails and said spaced cross members including a composite casting, including:
a steel member;
an end cap fastened to an end portion of the steel member; and
a cast coupling member cast about the end portion of the steel member including the end cap, thereby positively and rigidly securing the cast coupling member to the steel member.
The invention also concerns a composite casting comprising:
a steel member;
an end cap fastened to an open portion of the steel member; and
a cast coupling member cast about the end cap of said steel member by casting-in-place aluminum about said end cap, thereby positively and rigidly securing said coupling member to said steel member. |
