Ultrafast laser fine carving method for metal

Abstract

The invention discloses an ultrafast laser fine carving method for metal. The method comprises the following steps that firstly, a product to be carved is placed at the machining position of a fine carving device; secondly, after the product to be carved reaches the machining position of the fine carving device, pressing action is triggered by an inductor for the product to be carved, it is guaranteed that the surface to be carved and a galvanometer laser carving device are relatively horizontal through positioning of a jig mechanism, and ultrafast fine carving machining is achieved; thirdly,a laser device emits a laser beam which enters the galvanometer laser carving device through a laser path mechanism; fourthly, the galvanometer laser carving device controls the laser beam to act on the surface of the product to be carved for fine carving machining; fifthly, a dust removal mechanism blows away smoke dust generated on the surface of the product and carries out pumping and discharging treatment; and sixthly, after fine carving machining is completed, the product is recycled. Consistency of automation and the high efficiency of machining are guaranteed, meanwhile, the technological requirements needed by fine carving can be met, products can be carved rapidly, accurately and finely, and the production and machining efficiency and yield are improved.

Description

Technical field[0001]The present invention relates to the technical field of laser engraving and processing of power batteries, and more specifically, the present invention relates to a method for ultra-fast engraving of battery explosion-proof valves.Background technique[0002]Due to the thin thickness and small size of the power battery explosion-proof valve, and the extremely high requirements for processing width, depth and position, it is difficult for ordinary precision carving methods to meet the requirements of design drawings. Ordinary engraving usually uses pulsed laser and laser galvanometer to scan and engrave. The use of laser focus is small, high energy density, small engraving deformation, and narrow heat-affected zone to effectively improve processing accuracy; with galvanometer scanning, X and Y are used. Scanning motor, through the scanning frequency to control the position of different time points to achieve the transformation of the entire scanning pattern to achi...

AI Technical Summary

Problems solved by technology

[0003] 1. The focus spot is large and the heat-affected zone is large, resulting in large deformation of the product;

[0004] 2. The variation range of depth and width is too large, making it difficult to meet the drawing requirements;

[0005] 3. The engraving time is long, the beat is slow, and the efficiency is low; the product consistency is poor;

[0006] 4. There are welding slag, smoke, etc. on the surface of the product after engraving;

[0007] 5. Low product yield

Images