AIR BLASTING METHOD AND DEVICE FOR HARD AND BRITTLE MATERIAL

• Main Authors: AOYAMA NAOKI, SHIBUYA NORIHITO, HORIUCHI TSUKASA, YAMAMOTO KIYOHI
• Format: Patent
• Language: English
• Published: 02.10.2008
• Subjects: ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL; ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; GLASS; GRINDING; JOINING GLASS TO GLASS OR OTHER MATERIALS; LIME, MAGNESIA; METALLURGY; MINERAL OR SLAG WOOL; PERFORMING OPERATIONS; POLISHING; REFRACTORIES; SLAG; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS; TRANSPORTING; TREATMENT OF NATURAL STONE

PROBLEM TO BE SOLVED: To provide air blasting device and method simplifying a structure capable of easily forming a fine hole or a groove of an aspect ratio of ≥2.0 in a planar workpiece made of a hard and brittle material. SOLUTION: In this air blasting device, an injection material for polishing is mixed with compressed gas and they are collided with each other at high speed to machine and form the hole or the groove. In the device, a compressed gas nozzle 2 for injecting only the compressed gas having the same injecting direction as that of a blasting nozzle 1 is provided in the machining advancing direction front of the blasting nozzle 1 for mixing the injection material with the compressed gas and injecting them. COPYRIGHT: (C)2009,JPO&INPIT