Process method for improving friction performance of metal friction surface

The invention discloses a process method for improving the friction performance of a metal friction surface, and belongs to the technical field of metal friction surface machining. The method comprises the following steps of: 1, carrying out semi-finish turning on a friction surface; secondly, finish machining is conducted on the friction surface; 3, measuring the roughness of the friction surface, and calculating an average value; fourthly, the friction face cutter lines are subjected to flattening machining; and 5, detecting the roughness of the friction surface. Firstly, proper tool marks are machined on the friction surface through the turning tool, then high points and sharp protrusions of the cutting marks are eliminated through the flattening device, the roughness of the friction surface is further improved, and the concave positions of the tool marks are still reserved to serve as oil storage grooves while the required roughness is achieved; the machined friction surface is low in surface roughness an