US4044220A
Expired / Lapsed
US
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Resistance welding electrode and method of making
Assignee: Reynolds Metals Co
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Filing: 1975-09-15
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Granted: 1977-08-23
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Expires: 1995-09-15
Abstract
Abstract In a method of making a resistance welding electrode of the type having a copper or copper-base alloy body member and a coating on a surface portion of the body member, the coating defining an outer work-contacting surface of the electrode, and the coating being of a material selected from the group consisting of nickel, berylium, cobalt, iron and high melting point alloys of the foregoing, the improvement wherein the coated surface portion of the body member is shot-peened prior to coating.
Inventors
- 👤 Michael A. Glagola
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:55
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/02; B23K35/0205; B23K11/00; B23K11/30
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
68 words
A method for forming work-contacting layer on a surface portion of a copper or copper-base alloy body member of a resistance welding electrode, which comprises the steps of: a. shot-peening said surface portion of said body member and b. coating said surface portion of said body member with a material selected from the group consisting of nickel, berylium, cobalt, iron and high melting point alloys of the foregoing.
Claim 2
Independent Claim
68 words
A method for forming work-contacting layer on a surface portion of a copper or copper-base alloy body member of a resistance welding electrode, which comprises the steps of: a. shot-peening said surface portion of said body member and b. coating said surface portion of said body member with a material selected from the group consisting of nickel, berylium, cobalt, iron and high melting point alloys of the foregoing.
Claim 3
Dependent Claim
17 words
A resistance welding electrode having a work-contacting layer formed in accordance with the method of claim 1.
Claim 4
Dependent Claim
17 words
The method of claim 1, wherein said surface portion of said body member is coated with nickel.
Claim 5
Dependent Claim
21 words
The method of claim 3 wherein said surface portion of said body member is coated with nickel having a dull finish.
Claim 6
Dependent Claim
17 words
A resistance welding electrode having a work-contacting layer formed in accordance with the method of claim 4.
Claim 7
Dependent Claim
30 words
The method of claim 4 wherein said surface portions of said body member is coated with nickel to a thickness within the range of about 0.00001 to about 0.001 inches.
Claim 8
Dependent Claim
17 words
A resistance welding electrode having a work-contacting layer formed in accordance with the method of claim 6.
Claim 9
Dependent Claim
47 words
The method of claim 6 wherein said surface portion of said body member is shot-peened by substantially spherical shot blasted by means of an air pressure differential of about 65 psi, said shot being of aluninum oxide and having an average size corresponding to about 54 mesh.
Claim 10
Dependent Claim
17 words
A resistance welding electrode having a work-contacting layer formed in accordance with the method of claim 8.
Claim 11
Dependent Claim
24 words
The method of claim 6 wherein said surface portion of said body member is coated with nickel to a thickness of about 0.00007 inches.
Claim 12
Dependent Claim
17 words
A resistance welding electrode having a work-contacting layer formed in accordance with the method of claim 10.
Claim 13
Independent Claim
70 words
A method for forming work-contacting layer on a surface portion of a copper or copper-base alloy body member of a resistance welding electrode, which comprises the steps of: a. shot-peening said surface portion of said body member and b. coating said surface portion of said body member by electroplating with a material selected from the group consisting of nickel, berylium, cobalt, iron and high melting point alloys of the foregoing.
Claim 14
Independent Claim
70 words
A method for forming work-contacting layer on a surface portion of a copper or copper-base alloy body member of a resistance welding electrode, which comprises the steps of: a. shot-peening said surface portion of said body member and b. coating said surface portion of said body member by electroplating with a material selected from the group consisting of nickel, berylium, cobalt, iron and high melting point alloys of the foregoing.
Claim 15
Dependent Claim
17 words
A resistance welding electrode having a work-contacting layer formed in accordance with the method of claim 12.
Claim 16
Dependent Claim
17 words
The method of claim 12 wherein said surface portion of said body member is coated with nickel.
Claim 17
Dependent Claim
21 words
The method of claim 14 wherein said surface portion of said body member is coated with nickel having a dull finish.
Claim 18
Dependent Claim
17 words
A resistance welding electrode having a work-contacting layer formed in accordance with the method of claim 15.
Claim 19
Dependent Claim
30 words
The method of claim 15 wherein said surface portion of said body member is coated with nickel to a thickness within the range of about 0.00001 to about 0.001 inches.
Claim 20
Dependent Claim
17 words
A resistance welding electrode having a work-contacting layer formed in accordance with the method of claim 17.
Claim 21
Dependent Claim
47 words
The method of claim 17 wherein said surface portion of said body member is shot-peened by substantially spherical shot blasted by means of an air pressure differential of about 65 psi, said shot being of aluminum oxide and having an average size corresponding to about 54 mesh.
Claim 22
Dependent Claim
17 words
A resistance welding electrode having a work-contacting layer formed in accordance with the method of claim 19.
Claim 23
Dependent Claim
24 words
The method of claim 17 wherein said surface portion of said body member is coated with nickel to a thickness of about 0.00007 inches.
Claim 24
Dependent Claim
17 words
A resistance welding electrode having a work-contacting layer formed in accordance with the method of claim 21.
Claim 25
Independent Claim
71 words
A method for forming work-contacting layer on a surface portion of a copper or copper-base alloy body member of a resistance welding electrode, which comprises the steps of: a. shot-peening said surface portion of said body member and b. coating said surface portion of said body member by electroless deposition with a material selected from the group consisting of nickel, berylium, cobalt, iron and high melting point alloys of the foregoing.
Claim 26
Independent Claim
71 words
A method for forming work-contacting layer on a surface portion of a copper or copper-base alloy body member of a resistance welding electrode, which comprises the steps of: a. shot-peening said surface portion of said body member and b. coating said surface portion of said body member by electroless deposition with a material selected from the group consisting of nickel, berylium, cobalt, iron and high melting point alloys of the foregoing.
Claim 27
Dependent Claim
17 words
A resistance welding electrode having a work-contacting layer formed in accordance with the method of claim 23.
Claim 28
Dependent Claim
17 words
The method of claim 23 wherein said surface portion of said body member is coated with nickel.
Claim 29
Dependent Claim
21 words
The method of claim 25 wherein said surface portion of said body member is coated with nickel having a dull finish.
Claim 30
Dependent Claim
17 words
A resistance welding electrode having a work-contacting layer formed in accordance with the method of claim 26.
Claim 31
Dependent Claim
30 words
The method of claim 26 wherein said surface portion of said body member is coated with nickel to a thickness within the range of about 0.00001 to about 0.001 inches.
Claim 32
Dependent Claim
17 words
A resistance welding electrode having a work-contacting layer formed in accordance with the method of claim 28.
Claim 33
Dependent Claim
47 words
The method of claim 28 wherein said surface portion of said body member is shot-peened by substantially spherical shot blasted by means of an air pressure differential of about 65 psi, said shot being of aluminum oxide and having an average size corresponding to about 54 mesh.
Claim 34
Dependent Claim
17 words
A resistance welding electrode having a work-contacting layer formed in accordance with the method of claim 30.
Claim 35
Dependent Claim
24 words
The method of claim 28 wherein said surface portion of said body member is coated with nickel to a thickness of about 0.00007 inches.
Claim 36
Dependent Claim
17 words
A resistance welding electrode having a work-contacting layer formed in accordance with the method of claim 32.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-22 | 1981-02-21 | 1981-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-22 | 1985-02-21 | 1985-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-22 | 1989-02-21 | 1989-08-23 | $7700.00 | Window Closed / Lapsed |