Novel connecting rod small end processing technique

The invention relates to the technical field of engine connecting rod processing, in particular to a novel connecting rod small end processing technique. The novel connecting rod small end processingtechnique is characterized by comprising the following steps: (1) enabling a big end hole processed in a connecting rod blank to be a circular hole, and separating the connecting rod blank processed with the big head hole into a connecting rod body and a connecting rod cap in a cracking manner; (2) performing semi-finish boring of a small end hole; (3) performing finish milling of the small end bored hole; (4) grinding and trimming the small end bored hole; (5) performing inspection. The novel connecting rod small end processing technique completely achieves the development purpose, and is reasonable in design and accurate in position-fixing. The qualified rate of the processed small end holes of connecting rods is increased from 15% of existing traditional processing to more than 97%, andis increased by more than