DE2522429A1 - Laser boring or cutting of stone - subjected to ultrasonic or magnetostrictive vibration to increase cutting speed - Google Patents

Abstract

Stones or rocks are drilled or cut by a process using infrared lasers and magnetostrictive or ultrasonic crystal vibrators. The laser beam is automatically fed at uniform speed to and fro along a line on the stone, which is provided with ultrasonic transducers operating at a wavelength corresp. with the size of the crystals in the stone. The crystal structure os therefore vibrated while it is exposed to the laser beam. Optical fibres or waveguides are used to direct the laser beam, e.g. into a hole. Theuse of magnetostrictive or ultrasonic transducers permits an increased in the energy supplied by the laser beam, and therefore higher drilling or cutting speeds.

Description

"Method of drilling and cutting stones".

Pliny describes a beam amplification system from Archimedes in Syracuse, which with mirrors, crystals and solar rays ships to great distances could set fire.

The Romans attacked Syracuse when the sky was overcast and have been since Time in possession of the procedure.

Furthermore, Pliny describes a secret procedure for Stone processing, which was inherited from father to son and a Roman one It was a state secret even older sources, perhaps from Egypt and the pyramids.

In any case, both the Romans and the Egyptians were very capable to cut large blocks of stone with a very fine cut and smooth surfaces.

In the ltyroglieSchriSt you can also see stonemasons with a kind Galton pipes, flutes and the like.

The beam amplification and knowledge of vibrations will be probably the basics of the stone technique for building the pyramids, now are the beam amplification system from Archimedes as an infrared LASER with a stimulus of Grfit or other crystals or gases.

Only can to generate infrared rays to excite the LASER tubes via heating chambers with graphite and fiber optic cables to the LASER tubes higher energies than can be applied with solar radiation.

with magnetostrictive and crystal ultrasound oscillators in the wavelength The respective crystal sizes in the rock can also have higher radiation energies generated0 Since both versions are available in stores, I could only use the training for cutting and drilling elsen and rock is presented0 In addition, the common use of LASER beams and ultrasonic transducers in chemical plants for size reduction and decomposition since 9-9. 64 in the patent application PAo 634 151 resp. H 42 -858 IV a / 12 g called and become known, Proposed becomes an automatic and adjustable control of the LASER beam on the rocks or a stone block, either from the blasting device or from a mirror system Mountain glass or other material that allows infrared to pass through for a longer period of time Time span up and down a line.

The line can be horizontal, vertical or in any other weighting be respected.

When cutting rocks, the LASER device can also be used in a larger one Distance can be issued and controlled.

For smaller jobs, the LASER beam can also be mirrored Hollow pipe, with or without synthetic fibers, can be guided by hand In the case of deep boreholes, a thin hollow line would have to be connected to the exit opening of the LASER beam which allows infrared to pass through and is mirrored on the inside, respO fiber optic cables 0, however, would have to press in water via a double pipe and with the dust be sucked off again0 A fiber optic cable for infrared could be made of plastic, polyester or a rock crystal dust fiber with all-round mirroring of each fiber manufactured9 which are designed as a mirrored hollow pipe.

The ultrasonic vibrators would have to be controllable in terms of the wavelength of the crystal sizes and have a higher watt or kilowatt output, and by means of expandable hollow bodies with a very soft edge at intervals on the rock and partially evacuated0 In a borehole, the ultrasonic transducers would have to be operated in pairs by oil pressure or compressed air be pressed apart firmly pressed against the rock wall, When cutting stone blocks in the quarry, one or two ultrasonic transducers would be switched on for each block Screwed brackets will be cheaper.

Apprenticeships for tunnel construction or deep drilling could be a number from LASER devices to the hollow light pipe and in the drill head exit from 2 or 3 different jet openings, in the same quiet can also other frequencies in the LASER device to destroy the smallest crystal areas excited by ultrasound to be used in the rock.

L e r s e i t e

Claims (5)

Method for drilling and cutting stones "Patent Claims. lo method for drilling and cutting stones according to the patent application P.A. 634 151 (H 42 858 IV a / 12 g of 9.9.64 and the patent display 2 300 677 with Infrared LASERS and magnetostrictive or crystal ludtras, marked with this that a LASER beam automatically crosses each set line in an even Speed goes up and down over a rock or skin on its walls with the help of hollow bodies to be evacuated ultrasonic transducers a wavelength in the order of magnitude of the respective stone-crystal size @ the crystal structure in the Set the cut surface in vibrations ## is generated, and light fibers # e # lines or mirrored hollow tubes for the transmission of the infrared light beam Crystal dust or 2. Plastic can be used. 2. The method according to claim 1, characterized in that the infrared LASER beam is directed into a borehole, on whose field walls ultrasonic vibrators on a ring with pressure on these walls and the laser beam through the ing runs and the borehole is freed from dust at intervals using a blower will 3. The method according to claim 1 and 2, characterized in that in coarser -fiefen the rock dust is rinsed out with pressurized water and sucked off 4. Procedure according to claim 1 - 3, characterized in that other LASER frequencies are used and in the quarry or tunnel construction the ultra-oscillators by @ lam @ ern to be screwed to the connections. 5. The method according to claim 1-4 9, characterized in that the Light excitation chambers laid out with graphite or another in a different light frequency of luminous material, can be made to glow by electricity or gas and the respective radiation frequency via fiber optic cables to the LASER-R-tube will.