Method for laser cutting of 0.5 mm titanium alloy

Abstract

The invention relates to a method for laser cutting of a 0.5 mm titanium alloy. The method comprises the steps: (1) removing greasy dirt and dust on the surface of the titanium alloy; and (2) cuttinga titanium alloy panel with the thickness of 0.5 mm by using a ProCutter laser cutting gun, wherein the technological parameters are as follows: the cutting speed is 14-16 m / min; the laser power is 1-2kW; the gas pressure is 1-1.5 MPa; the defocusing amount is -1-0 mm; the working distance is 0.8 to 1.2 mm; the diameter of a cutting nozzle is 0.8 to 1.2 mm; and cutting gas is argon. According to the method, the process stability can be guaranteed, and the method is repeatable, safe, stable and reliable, and a kerf is smooth, level, free of adhering slag and good in quality.

Description

technical field

[0001] The invention relates to a method for cutting titanium alloy, in particular to a method for laser cutting 0.5mm titanium alloy. Background technique

[0002] TC4 titanium alloy is a dual-phase alloy with good comprehensive properties, good structural stability, good toughness, plasticity and high-temperature deformation properties, and can be processed by hot pressure well, and can be quenched and aged to strengthen the alloy. The strength after heat treatment is about 50% to 100% higher than that of the annealed state; the high temperature strength is high, and it can work for a long time at a temperature of 400°C to 500°C, and its thermal stability is inferior to that of α-titanium alloy.

[0003] Titanium alloy has high strength and low density, good mechanical properties, good toughness and corrosion resistance. In addition, the process performance of titanium alloy is poor, and it is difficult to cut and process. During thermal processing, it is ...