US3696504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of performing sequential non-mechanical and mechanical machining operations along a common centerline
Assignee: Individual
•
Filing: 1971-08-11
•
Granted: 1972-10-10
•
Expires: 1991-08-11
Abstract
Abstract The disclosure relates to a method of drilling holes in difficulty machinable material wherein non-mechanical means, such as a laser or an electron beam, is used to drill a first undersize hole which is characterized by a surrounding recast area followed by a mechanical reaming operation to remove the recast area and produce a finished bore in the material which then reveals no metallurgical alteration.
Inventors
- 👤 John A Cupler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:25
CPC Classifications
B; B23; B23B; B23B35/00; B23K; B23K15/00; B23K15/08; B23K15/085; B23K26/00; B23K26/36; B23K26/38; B23K26/382; B23K26/389; B23K26/40; B23K2103/00; B23K2103/50; Y; Y10; Y10S; Y10S408/00; Y10S408/701; Y10S408/704; Y10S408/705; Y10S65/00; Y10S65/04; Y10T; Y10T29/00; Y10T29/49; Y10T29/49995; Y10T29/49996; Y10T408/00; Y10T408/03
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
64 words
A method of forming a finished diameter bore in a metallic workpiece, comprising; simultaneously forming an undersize bore in said workpiece and producing a metallurgically altered zone surrounding said undersize bore by beam machining said workpiece; and then concomitantly enlarging said undersize bore and removing said zone throughout the entire length thereof by a rotary metal removal operation to produce said finished diameter bore.
Claim 2
Independent Claim
64 words
A method of forming a finished diameter bore in a metallic workpiece, comprising; simultaneously forming an undersize bore in said workpiece and producing a metallurgically altered zone surrounding said undersize bore by beam machining said workpiece; and then concomitantly enlarging said undersize bore and removing said zone throughout the entire length thereof by a rotary metal removal operation to produce said finished diameter bore.
Claim 3
Dependent Claim
13 words
The method of claim 1 wherein said beam machining consists of laser machining.
Claim 4
Dependent Claim
14 words
The method of claim 1 wherein said beam machining consists of electron beam machining.
Claim 5
Independent Claim
93 words
A method of machining a workpiece, comprising; positioning a beam machining tool on a fixed tool support adjacent a metallic workpiece; beam machining said workpiece along a centerline to simultaneously form an undersize bore and a metallurgically altered zone surrounding said undersize bore; substituting a rotary metal removal tool on said fixed tool support for said beam machining tool; and mechanically machining said workpiece along said centerline to concomitantly enlarge said undersize bore and remove said zone throughout the entire length thereof by said rotary metal removal tool to produce a finished bore.
Claim 6
Independent Claim
93 words
A method of machining a workpiece, comprising; positioning a beam machining tool on a fixed tool support adjacent a metallic workpiece; beam machining said workpiece along a centerline to simultaneously form an undersize bore and a metallurgically altered zone surrounding said undersize bore; substituting a rotary metal removal tool on said fixed tool support for said beam machining tool; and mechanically machining said workpiece along said centerline to concomitantly enlarge said undersize bore and remove said zone throughout the entire length thereof by said rotary metal removal tool to produce a finished bore.
Claim 7
Dependent Claim
34 words
The method of claim 4 including the step of directing a source of beam energy to said beam machining tool; and directing and focussing said beam from said beam machining tool to said workpiece.
Claim 8
Dependent Claim
18 words
The method of claim 5 including the step of imparting rotation to said tools during the machining operations.
Claim 9
Independent Claim
65 words
A method of forming a finished diameter bore in a difficulty machinable workpiece, comprising; simultaneously forming an undersize bore in said workpiece and producing a physically altered zone surrounding said undersize bore by beam machining said workpiece; and then concomitantly enlarging said undersize bore and removing said zone throughout the entire length thereof by a rotary workpiece removal operation to produce said finished diameter bore.
Claim 10
Independent Claim
65 words
A method of forming a finished diameter bore in a difficulty machinable workpiece, comprising; simultaneously forming an undersize bore in said workpiece and producing a physically altered zone surrounding said undersize bore by beam machining said workpiece; and then concomitantly enlarging said undersize bore and removing said zone throughout the entire length thereof by a rotary workpiece removal operation to produce said finished diameter bore.
Claim 11
Dependent Claim
13 words
The method of claim 7 wherein said beam machining consists of laser machining.
Claim 12
Dependent Claim
14 words
The method of claim 7 wherein said beam machining consists of electron beam machining.
Claim 13
Independent Claim
95 words
A method of machining a difficulty machinable workpiece, comprising; positioning a beam machining tool on a fixed tool support adjacent said workpiece; beam machining said workpiece along a centerline to simultaneously form an undersize bore and a physically altered zone surrounding said undersize bore; substituting a rotary workpiece removal tool on said fixed tool support for said beam machining tool; and mechanically machining said workpiece along said centerline to concomitantly enlarge said undersize bore and remove said zone zone throughout the entire length thereof by said rotary workpiece removal tool to produce a finished bore.
Claim 14
Independent Claim
95 words
A method of machining a difficulty machinable workpiece, comprising; positioning a beam machining tool on a fixed tool support adjacent said workpiece; beam machining said workpiece along a centerline to simultaneously form an undersize bore and a physically altered zone surrounding said undersize bore; substituting a rotary workpiece removal tool on said fixed tool support for said beam machining tool; and mechanically machining said workpiece along said centerline to concomitantly enlarge said undersize bore and remove said zone zone throughout the entire length thereof by said rotary workpiece removal tool to produce a finished bore.
Claim 15
Dependent Claim
34 words
The method of claim 10 including the step of directing a source of beam energy to said beam machining tool; and directing and focussing said beam from said beam machining tool to said workpiece.
Claim 16
Dependent Claim
18 words
The method of claim 11 including the step of imparting rotation to said tools during the machining operations.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |