A laser deburring process

Abstract

The invention discloses a laser deburring process. The laser deburring process is characterized in that a light beam generated by a laser is focused by an optical element to form laser spots with different diameters, with the action of a protecting gas, the spots clean a surface of a workpiece on a linear displacement platform in a continuous scanning mode or a pulse scanning mode so as to remove burrs on the surface of the workpiece. The process comprises a linear displacement platform, a laser, an optical focusing surface, a laser power meter and a protecting gas. Without any need of a cutter, the laser deburring process has small heat effect on the workpiece, high processing efficiency and wide application range and can process any metal and nonmetal workpiece.

Description

technical field [0001] The invention relates to a laser deburring process. Background technique [0002] Burrs refer to irregular metal parts such as various sharp corners and burrs that appear at the transition of the workpiece surface during metal processing. In essence, metal cutting refers to the deformation process in which the metal of the cut layer undergoes extrusion under the action of the rake face and cutting edge of the tool to produce shear slip. The metal of the cut layer on the sides, corners, edges, etc. of the workpiece undergoes large plastic deformation during the cutting process, and a part of it stays on the edges, corners, edges, etc. of the workpiece during the process of breaking and separating the chips from the surface of the workpiece On the part, cutting burrs are formed. There are many different forms of metal cutting burrs. According to the burr classification system based on cutting motion and tool cutting edge, cutting burrs can be divided i...

AI Technical Summary

Problems solved by technology

[0004] (1) Affect the dimensional accuracy, shape accuracy and surface roughness of the workpiece;

[0005] (2) Destroying or affecting the positioning of the next processing procedure;

[0006] (3) Affect or interfere with the measurement accuracy of the workpiece;

[0007] (4) In the assembly process, it directly affects the assembly quality, and in severe cases, even normal assembly cannot be performed;

[0008] (5) During the processing and transportation of the workpiece (or parts), it poses a threat to the safety of the operator, or causes certain injuries, etc.;

[0009] (6) In the process of processing, the sudden loss of burrs often leads to deficits (also known as negative burrs), resulting in the size of the workpiece being out of tolerance or making it scrapped;

[0010] (7) For hydraulic system components, if the burrs fall off, the burrs will exist in the tiny working gaps of each hydraulic component, causing the slide valve to be stuck, the circuit or filter screen to be blocked, causing accidents, and fluid turbulence or laminar flow , reducing the performance of the system

Water jet deburring can remove a variety of burrs on parts with complex shapes, but this method requires special equipment and is expensive, and is suitable for large-volume production