Rajasthan tools & spares provides ultrasonic machines. Ultrasonic machining is a method of brittle destruction by collision of abrasives, which are forced against a work by an ultrasonically vibrated tool assisted by an appropriate clamping force. The tool vibration can be of amplitude approximately 40-80 microns with frequencies of 25 khz, sufficient to perform effective machining. Abrasives may be carborundum, boron carbide or diamond powder depending upon each work. Rougher grits provide quicker chipping but with rougher finish, abrasives are usually used in slurry [mixed with water]. The ultrasonic machines are used for precise machining of any hard and brittle material; specifically drilling, stamping, cutting and engraving of glass, precious stone, porcelain, gems, semiconductor, ceramics and hard alloys. As the ultrasonic machining is longitudinally processed, both round and asymmetric machining can be done. High accuracy and fine finished are obtained depending on the tool accuracy and grit size. Features include: simple in operation; even a beginner can operate the machine with ease; thickness of 4 mm can be drilled in 10-15 seconds on an average; and very low operating cost, less than 4 per cent weight loss in drilling on an average.
