| 摘要 |
<p>This invention relates to an apertured connecting rod having a stress riser crease formed in one side thrust surface made by forging a powder metal sintered preform with a V-shaped notch mold formed in a side face whereby the spaced surfaces defining the V-shaped notch are folded inwardly toward one another during the forging to create a deep crease without any substantial width. Also, a method of manufacturing a connecting rod of powder metal and having a stress riser crease formed on a side thrust face of the rod formed by hot forging a sintered powder metal preform which has a generally V-shaped notch molded in a side surface whereby the hot forging folds the spaced surfaces of the notch towards one another in non-bonding close relation to form a deep, almost widthless crease. <IMAGE></p> |
