摘要 |
A method of manufacturing an oil filter module comprises directing a laser beam at a surface of an end cap but not at a rim of the end cap so as to fuse at least a portion of the end cap, spacing the end cap and the filter medium apart from one another during the directing step, inserting an end of the filter medium into the laser-fused portion so as to bond the end of the filter medium and the end cap together upon re-solidification of the laser-fused portion, and preventing flow of the laser-fused portion caused by the inserting step from reaching a peripheral diameter of the end cap by use of the rim. |