High-power diesel engine precise texture cylinder sleeve machining method

Abstract

The invention belongs to the technical field of engine accessory machining, and discloses a high-power diesel engine precise texture cylinder sleeve machining method. The method comprises the steps that (1) carrying out mirror machining on an inner surface of an cylinder sleeve; (2) placing the cylinder sleeve after mirror finishing on a machining station of laser texturing equipment, adjusting alaser head of a laser device in the laser texturing equipment to an axis of the cylinder sleeve, setting machining parameters of a precise texture according to a size of the cylinder sleeve and a shape of the precise texture, moving the laser head in the cylinder sleeve in a vertical direction, and machining to obtain the precise texture containing a plurality of laser point pits by cooperating with the rotation of the cylinder sleeve; and (3) performing fine honing on the cylinder sleeve obtained in the step 2, so as to obtain the high-power diesel engine precise texture cylinder sleeve. Themethod is easy to operate and high in machining efficiency, a lubricating effect of engine oil in the cylinder sleeve is durable and stable through the obtained cylinder sleeve, and the technical requirements of the cylinder sleeve are met.

Description

Technical field [0001] The invention belongs to the technical field of engine parts processing, and in particular relates to a method for processing a precision textured cylinder liner of a high-power diesel engine. Background technique [0002] With the further development of the field of high-power diesel engines, engines are required to have lower power consumption, stronger power, less fuel consumption, lower emissions, longer life, and better economy. [0003] The traditional flat-top reticulated cylinder liner has large random reticulation, limited depth of the reticulated groove, and the reticulated grooves are interconnected. When the piston ring slides on the surface of the cylinder liner, the oil will be drawn along the groove. Extrusion of the groove weakens the lubrication effect and cannot form dynamic pressure lubrication. [0004] In response to the new requirements of the engine, it is urgent to process a cylinder liner. By improving the texture of its inner surface,...

AI Technical Summary

Problems solved by technology

[0003] The traditional flat-top reticulated cylinder liner has large randomness of the reticulated pattern, limited depth of the reticulated grooves, and the reticulated grooves are interconnected. When the piston ring slides on the surface of the cylinder liner, the oil will be drawn along the grooves. Groove squeezes out, impairs lubrication and prevents dynamic lubrication