One-piece connecting rod and production method thereof

摘要

The present invention relates to a method of manufacturing a connecting rod (1) by filament winding, said method comprising in particular: creating an internal body (5) by manufacturing a first component (6) by winding pre-impregnated fibers (17) around a mandrel (8) and removing the mandrel; manufacturing a second part (7); providing a shoulder (12) in the second part (7); assembling the first component with the second component (7, 22); creating an external body (14) by winding pre-impregnated fibers (17), identical to those used in the manufacture of the first component (6), around said internal body (5); creating a one-piece body (18) by polymerizing the assembly formed of the internal body and of the external body; and machining a fastening (19) at one end of the one-piece body; wherein the one-piece body (18) and the first fastening element (19) are made up of a one and same composite material.

主权项

1. A method for manufacturing a connecting rod (1) by filament winding, said method comprising the following steps:
providing a mandrel (8); making an inner body (5) by: manufacturing a first part (6) by winding preimpregnated fibers (17) around said mandrel (8); removing the mandrel (8); manufacturing a second part (7); providing a shoulder (12) in the second part (7); assembling the first part (6) with the second part (7, 22); making an outer body (14) by winding preimpregnated fibers (17) around said inner body (5), said preimpregnated fibers (17) being identical to those used during the manufacture of the first part (6); making a one-piece body (18) by polymerization of the assembly formed by the inner body (5) and the outer body (14); machining a first fastening element (19) at one end of the one-piece body (18);
wherein the one-piece body (18) and the first fastening element (19) are made up of a one and same composite material.