JPS5945092A - Laser working device - Google Patents

Abstract

PURPOSE:To facilitate the working for the work having high reflectivity and heat conductivity by the explosive evaporation effect of a liquid, by providing a device which supplies the liquid to the position where lasr light is irradiated to a laser oscillator. CONSTITUTION:The carbon dioxide laser beam 2 ejected from a laser oscillator 1 irradiates the prescribed position of a work 3. Water 5 is supplied from a pump 4 to the position of the work 3 where the laser beam is irradiated or near the same. Then the water 5 absorbs the laser energy and evaporates explosively. The work 3 is worked by the explosive force thereof and the melt thereof is scattered. Aluminum or the like which is hardly workable with a laser is thus easily worked. Although the water 5 is ejected from the pump 4 to the irradiation position of the carbon dioxide laser, the laser working is accomplished as far as water is present on the surface of the work 3 and therefore the use of devices for supplying water by coating, dropping, streaming downward, etc. is also possible.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a laser processing device for cutting, perforating, etc. into broken eggs using Rede light.

Conventional laser machining machines perform machining by ejecting silica gas or inert gas near the irradiation point of the laser beam. Spray Jf gas near the processing point of the proboscis of the workpiece as shown in the figure. This is to prevent the molten material from being scattered by the physical pressure of the gas released from one shell and not remaining behind. Note that the oxidizing gas causes chemical action in addition to physical action at high temperatures to improve melting efficiency.

However, the conventional laser knife 11 2c +n requires gas during processing, which requires a fixed gas cost, and also requires a gas assembly, which takes up a lot of space and is difficult to maintain. In addition, there are disadvantages in practical use, such as the fact that the process is accompanied by problems 8116, and that gas must be interrupted and disconnected during processing operations, and a gas control system is required.

In addition, with the conventional Laser 1 processing machine, it is extremely difficult to process workpieces with high surface reflectance to the laser beam and workpieces with high thermal conductivity. It is said that it is impossible to work with gold, etc.

The present invention has been made in view of the above-mentioned circumstances, and consists of making a liquid exist at the position where the workpiece is irradiated with the laser beam, and causing the liquid to explode due to the vaporization action of the liquid during laser irradiation. By adding 7 things like eggs, processing efficiency can be improved, and 9
! n'' Nuclear force with high reflectance 11 Workpieces with high heat transfer rate 1. ．． The purpose of the present invention is to provide a laser beam that can be easily applied to a laser beam.

Embodiments of the present invention will be described below in detail with reference to the drawings. Force 11 k'
Of course, 4 (d, , 4, 5 are liquids. That is, the laser beam 2 emitted from the laser source 1 is irradiated to a predetermined position on the workpiece 30. p'' at or near the Rade beam irradiation position of proboscis 3, +j?7
A liquid 5 is supplied from the pipe 4. The liquid 5 is suitably one that absorbs laser light well, and the laser beam 9 is 2r.
When using a dredged carbon laser, water is produced appropriately.

Therefore, when the liquid absorbs the laser energy, the area (
At this point, it vaporizes explosively, and the physical pressure is extremely strong. The workpiece 3 is processed by the explosive force, and the molten material is scattered and liquefied. Therefore, even if the workpiece is difficult to machine, real aluminum, etc., it can be easily machined using this device, and there are IC6 types that can be machined using the explosive vaporization pressure of the liquid. 〃) The surface properties of the workpiece G'↓ correspond to the hot processing ability.

In addition, in the above-mentioned implementation example, the liquid was injected from the furnace at t, but it is fine for the liquid to exist between the coatings of the workpiece. An adult feeding device can be used.

As described above, according to the present invention, a liquid is present at the irradiation position i (t) of the Rede light onto the workpiece, and the amount of light is 1/, which is exposed to the explosive vaporization of the liquid during irradiation. 7JO
By processing the workpiece, it is possible to easily process workpieces with high surface reflectance or cracked objects with high thermal conductivity. Furthermore, unlike the use of gas, the use of liquids such as water is extremely easy, and the cost I• hardly increases, making it extremely convenient for industrial use.

[Brief explanation of drawings]

Drawing e, one embodiment of the present invention 15'! FIG. J...Rage' Oscillation a, 2...L, / jJ'
i;-mu, 3...workpiece I [su, 4...pa? 7)
,5...Liquid.

Claims (2)

[Claims] (1) Laser processing equipment 3゜ characterized by comprising a laser V9 oscillator that irradiates a workpiece with a laser beam, and a liquid supply device that makes all the liquid exist at the laser irradiation position of the workpiece. (2) The laser processing apparatus 0 according to claim jJ, which is characterized in that the emitted light of 21 fluoride carbon + C lede is used as the laser beam and water is used as the liquid.