Ultrasonic grinding and honing

• US 3,273,288 A
• Filed: 04/25/1962
• Issued: 09/20/1966
• Est. Priority Date: 04/25/1962
• Status: Expired due to Term

• Current Assignee: Arthur Kuris, Lewis Balamuth
• Original Assignee: Arthur Kuris, Lewis Balamuth
• Inventors: ARTHUR KURIS, LEWIS BALAMUTH
• Application Number:
  US04/190,154
• Time in Patent Office: 1,609 Days
• US Class Current: 451/178
• CPC Class Codes: B24B 1/04 subjecting the grinding or polishing tools, the abrading or polishing medium or work to vibration, e.g. grinding with ultrasonic frequency polishing or abrading surfaces on work by means of tumbling apparatus B24B31/00, involving oscillating or vibrating containers B24B31/06; superfinishing surfaces on work, e.g. by means of abrading blocks reciprocating with high frequency, B24B35/00
• CPC Class Codes: B24B 21/00 Machines or devices using grinding or polishing belts for sharpening cutting edges of tools B24B3/00; portable belt-grinding machines B24B23/06; Accessories therefor
• CPC Class Codes: B24B 35/00 Machines or devices designed for superfinishing surfaces on work, i.e. by means of abrading blocks reciprocating with high frequency
• CPC Class Codes: B24D 5/00 Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
• CPC Class Codes: B24D 9/00 Wheels or drums supporting in exchangeable arrangement a layer of flexible abrasive material, e.g. sandpaper

Claims

1. AN ABRADING DEVICE COMPRISING (A) AT LEAST ONE ABRADING ELEMENT HAVING AN ACTIVE SURFACE ADAPTED TO BE MOVED RELATIVE TO A WORKPIECE IN CONTACT WITH A SURFACE OF THE LATTER FOR FINISHING THE WORKPIECE SURFACE, (1) SAID ELEMENT HAVING A RELATIVELY SMALL THICKNESS IN THE DIRECTION NORMAL TO SAID ACTIVE SURFACE;

AND (B) MEANS APPLYING HIGH FREQUENCY VIBRATIONS TO SAID ABRADING ELEMENT AT THE SIDE OF THE LATTER OPPOSED TO SAID ACTIVE SURFACE AND IN SAID DIRECTION NORMAL TO THE LATTER, (1) SAID APPLYING MEANS INCLUDING A GENERALLY CIRCULAR, RADIALLY VIBRATED METAL BODY HAVING DIAMETRICALLY OPPOSED SECTORS OF RELATIVELY SMALL MASS AND RELATIVELY LARGE MASS, RESPECTIVELY, SO THAT THE AVERAGE RADIAL VELOCITY IN SAID SECTOR OF RELATIVELY SMALL MASS IS SUBSTANTIALLY GREATER THAN THE AVERAGE RADIAL VELOCITY IN THE DIAMETRICALLY OPPOSED SECTOR OF RELATIVELY LARGE MASS, THEREBY TO PROVIDE RADIAL VIBRATIONS OF MAGNIFIED AMPLITUDE AT THE PERIPHERIES OF SAID SECTORS OF RELATIVELY SMALL MASS, (2) SAID RADIALLY VIBRATED METAL BODY BEING ROTATED WITH A PERIPHERAL SPEED EQUAL TO THE SPEED OF MOVEMENT OF SAID ABRADING ELEMENT RELATIVE TO THE WORKPIECE, (3) SAID SECTORS OF RELATIVELY SMALL MASS AND OF RELATIVELY LARGE MASS HAVING ABRADING ELEMENTS ON THE PERIPHERIES THEREOF WHICH RESPECTIVELY INCLUDE RELATIVELY FINE AND RELATIVELY COURSE ABRASIVE GRAINS, (4) SAID VIBRATIONS BEING APPLIED TO SAID ABRADING ELEMENTS AT LEAST OVER THE AREA OF THE LATTER IN CONTACT WITH THE WORKPIECE SO THAT THE VIBRATIONS ARE EFFECTIVELY TRANSMITTED THROUGHT THE THIN ABRADING ELEMENTS TO ACT AT SAID ACTIVE SURFACE FOR ENHANCING THE ABRADING EFFECT OF THE LATTER.