High frequency vibrational polishing
First Claim
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1. The method of working a workpiece surface having a configuration preformed therein to remove a very thin and uniform layer of material from the workpiece surface without adversely effecting the configuration detail and resolution, the steps comprising:
- A. forming a blank tool from a material that is more ultrasonically abradable than the workpiece;
B. mounting said tool in a vibratable relationship to said workpiece;
C. applying a liquid abrasive slurry between said tool and said workpiece;
D. causing a relative vibratory motion between said tool and said workpiece at a frequency and amplitude sufficient to abrade and shape said tool into relative mating conformity with said configuration on the surface of said workpiece;
E. continuing said vibratory motion as will continue to abrade said tool as said tool continues to reform and maintain said relative conformity with the surface configuration of said workpiece while at the same time imparting a relatively minor working action on the surface of said workpiece; and
F. stopping said vibratory motion when the surface of the workpiece has been abraded to the degree desired.
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Abstract
High frequency vibrational polishing without substantial loss of fine resolution and detail is provided by employing a tool of a more ultrasonically abradable material than the workpiece, as the oscillating driver of a liquid abrasive slurry. The total is preferentially eroded and conforms to the pattern of the workpiece continuously self-dressing during polishing.
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Citations
19 Claims
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1. The method of working a workpiece surface having a configuration preformed therein to remove a very thin and uniform layer of material from the workpiece surface without adversely effecting the configuration detail and resolution, the steps comprising:
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A. forming a blank tool from a material that is more ultrasonically abradable than the workpiece; B. mounting said tool in a vibratable relationship to said workpiece; C. applying a liquid abrasive slurry between said tool and said workpiece; D. causing a relative vibratory motion between said tool and said workpiece at a frequency and amplitude sufficient to abrade and shape said tool into relative mating conformity with said configuration on the surface of said workpiece; E. continuing said vibratory motion as will continue to abrade said tool as said tool continues to reform and maintain said relative conformity with the surface configuration of said workpiece while at the same time imparting a relatively minor working action on the surface of said workpiece; and F. stopping said vibratory motion when the surface of the workpiece has been abraded to the degree desired. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification