Patent EP0486755A2 successfully refreshed from Google Patents.
EP0486755A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Friction welding method for joining a rim and a disc of a disk wheel
Assignee: A and S Corp
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Filing: 1991-06-07
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Granted: —
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Expires: 2011-06-07
Abstract
Abstract This is a friction welding method for joining a rim and a disc of a disc wheel and apparatus therefore wherein an outside material or a rim and an inside material or a disc, each of which is a component of a disc wheel, are joined together. This friction welding apparatus comprises, typically, a mechanism for fixing firmly the circumference of one material almost entirely circumferentially, a mechanism for rotating another material, a mechanism for generating frictional heat between the two materials, with the inside material fitted into the outside material, by pressurizing the rotated material to the fixed material. This method employs a lap joint process instead of a butt joint process. Either or both of the materials can be provided with a projection on the circumference. A projection absorbs the turning force, inertia force and braking force produced at the time of joining operation to prevent the above forces from being concentrated on a local portion of the materials in process. This prevents the finished products from deformation.
Inventors
- 👤 Tsutomu Amao
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 02:05
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/12; B60; B60B; B60B3/00; B60B3/04; B60B3/041; B60B3/044; B23K20/129; B60B31/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49481; Y10T29/49492; Y10T29/49496; Y10T29/49499
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
196 words
A friction welding method for joining a rim and a disc of a disc wheel, said rim being an outside material and said disc being an inside material, said inside material being able to be fitted into said outside material, at least either of said outside material or said inside material being provided with a projection, said projection protruding almost entirely circumferentially so that said projection of one material can be opposed to another material when said inside material is fitted into said outside material, comprising the steps of: fixing firmly either the outer circumference or the inner circumference of either of said outside material or said inside material almost entirely circumferentially when said inside material is in the state of fitted into said outside material; rotating either of said outside material or said inside material; and generating frictional heat at a joining face between said outside material and said inside material by pressurizing one material to another material in the outer or inner direction so as to ensure that one material can be pressurized uniformly via said projection to another fixed material stated above, while either said outside material or said inside material is rotated.
Claim 2
Dependent Claim
196 words
A friction welding method for joining a rim and a disc of a disc wheel, said rim being an outside material and said disc being an inside material, said inside material being able to be fitted into said outside material, at least either of said outside material or said inside material being provided with a projection, said projection protruding almost entirely circumferentially so that said projection of one material can be opposed to another material when said inside material is fitted into said outside material, comprising the steps of: fixing firmly either the outer circumference or the inner circumference of either of said outside material or said inside material almost entirely circumferentially when said inside material is in the state of fitted into said outside material; rotating either of said outside material or said inside material; and generating frictional heat at a joining face between said outside material and said inside material by pressurizing one material to another material in the outer or inner direction so as to ensure that one material can be pressurized uniformly via said projection to another fixed material stated above, while either said outside material or said inside material is rotated.
Claim 3
Dependent Claim
176 words
A friction welding method for joining a rim and a disc of a disc wheel, said rim being an outside material and said disc being an inside material, said inside material being able to be fitted into said outside material, both of said outside material and said inside material being provided with a projection, respectively, said projection protruding so that one projection can be opposed to another projection almost entirely circumferentially when said inside material is fitted into said outside material, comprising the steps of: fixing firmly the outer circumference of said outside material almost entirely circumferentially, when said inside material is fitted into said outside material; rotating said inside material; and generating frictional heat at a joining face between said outside material and said inside material by pressurizing said inside material to said outside material from the inside of said inside material so as to ensure that said outside material and said inside material can be pressurized uniformly almost entirely circumferentially via said projection, while either said outside material or said inside material is rotated.
Claim 4
Dependent Claim
176 words
A friction welding method for joining a rim and a disc of a disc wheel, said rim being an outside material and said disc being an inside material, said inside material being able to be fitted into said outside material, both of said outside material and said inside material being provided with a projection, respectively, said projection protruding so that one projection can be opposed to another projection almost entirely circumferentially when said inside material is fitted into said outside material, comprising the steps of: fixing firmly the outer circumference of said outside material almost entirely circumferentially, when said inside material is fitted into said outside material; rotating said inside material; and generating frictional heat at a joining face between said outside material and said inside material by pressurizing said inside material to said outside material from the inside of said inside material so as to ensure that said outside material and said inside material can be pressurized uniformly almost entirely circumferentially via said projection, while either said outside material or said inside material is rotated.
Claim 5
Dependent Claim
177 words
A friction welding method for joining a rim and a disc of a disc wheel, said rim being an outside material and said disc being an inside material, said inside material being able to be fitted into said outside material, said outside material being provided with a projection around the inside circumference thereof, said projection protruding so that said projection can be opposed to said inside material almost entirely circumferentially when said inside material is fitted into said outside material, comprising the steps of: fixing firmly the outer circumference of said outside material almost entirely circumferentially when said inside material is in the state of being fitted into said outside material; rotating said inside material; and generating frictional heat at a joining face between said outside material and said inside material by pressurizing said inside material to said outside material from the inside of said inside material so as to ensure that both of said outside material and said inside material can be pressurized uniformly via said projection almost entirely circumferentially, while said inside material is rotated.
Claim 6
Dependent Claim
177 words
A friction welding method for joining a rim and a disc of a disc wheel, said rim being an outside material and said disc being an inside material, said inside material being able to be fitted into said outside material, said outside material being provided with a projection around the inside circumference thereof, said projection protruding so that said projection can be opposed to said inside material almost entirely circumferentially when said inside material is fitted into said outside material, comprising the steps of: fixing firmly the outer circumference of said outside material almost entirely circumferentially when said inside material is in the state of being fitted into said outside material; rotating said inside material; and generating frictional heat at a joining face between said outside material and said inside material by pressurizing said inside material to said outside material from the inside of said inside material so as to ensure that both of said outside material and said inside material can be pressurized uniformly via said projection almost entirely circumferentially, while said inside material is rotated.
Claim 7
Dependent Claim
183 words
A friction welding apparatus for joining a rim and a disc of a disc wheel, said rim being an outside material and said disc being said inside material, said inside material being able to be fitted into said outside material, at least either of said outside material or said inside material being provided with a projection, said projection protruding so that said projection of one material can be opposed to another material almost entirely circumferentially when said inside material is fitted into said outside material, comprising: means for fixing firmly either the outer circumference or the inner circumference of said outside material or said inside material almost entirely circumferentially; means for rotating either of said outside material or said inside material; and means for generating frictional heat at a joining face between said outside material and said inside material by pressurizing one material to another material in the outer or inner direction so as to ensure that one material can be pressurized uniformly via said projection to another fixed material stated above, while either said outside material or said inside material is rotated.
Claim 8
Dependent Claim
183 words
A friction welding apparatus for joining a rim and a disc of a disc wheel, said rim being an outside material and said disc being said inside material, said inside material being able to be fitted into said outside material, at least either of said outside material or said inside material being provided with a projection, said projection protruding so that said projection of one material can be opposed to another material almost entirely circumferentially when said inside material is fitted into said outside material, comprising: means for fixing firmly either the outer circumference or the inner circumference of said outside material or said inside material almost entirely circumferentially; means for rotating either of said outside material or said inside material; and means for generating frictional heat at a joining face between said outside material and said inside material by pressurizing one material to another material in the outer or inner direction so as to ensure that one material can be pressurized uniformly via said projection to another fixed material stated above, while either said outside material or said inside material is rotated.
Claim 9
Dependent Claim
179 words
A friction welding apparatus for joining a rim and a disc of a disc wheel, said rim being an outside material and said disc being an inside material, said inside material being able to be fitted into said outside material, both of said outside material and said inside material being provided with a projection, respectively, said projection protruding so that one projection can be opposed to another projection almost entirely circumferentially when said inside material is fitted into said outside material, comprising: means for fixing firmly the outer circumference of said outside material almost entirely circumferentially when said inside material is fitted into said outside material; means for rotating said inside material; and means for generating frictional heat at a joining face between said outside material and said inside material by pressurizing said inside material to said outside material from the inside of the inside material so as to ensure that said outside material and said inside material can be pressurized uniformly almost entirely circumferentially via said projection, while either said outside material or said inside material is rotated.
Claim 10
Dependent Claim
179 words
A friction welding apparatus for joining a rim and a disc of a disc wheel, said rim being an outside material and said disc being an inside material, said inside material being able to be fitted into said outside material, both of said outside material and said inside material being provided with a projection, respectively, said projection protruding so that one projection can be opposed to another projection almost entirely circumferentially when said inside material is fitted into said outside material, comprising: means for fixing firmly the outer circumference of said outside material almost entirely circumferentially when said inside material is fitted into said outside material; means for rotating said inside material; and means for generating frictional heat at a joining face between said outside material and said inside material by pressurizing said inside material to said outside material from the inside of the inside material so as to ensure that said outside material and said inside material can be pressurized uniformly almost entirely circumferentially via said projection, while either said outside material or said inside material is rotated.
Claim 11
Dependent Claim
180 words
A friction welding apparatus for joining a rim and a disc of a disc wheel, said rim being an outside material and said disc being an inside material, said inside material being able to be fitted into said outside material, said outside material being provided with a projection around the inside circumference thereof, said projection protruding so that said projection can be opposed to said inside material almost entirely circumferentially when said inside material being fitted into said outside material, comprising: means for fixing firmly the outer circumference of said outside material almost entirely circumferentially when said inside material is in the state of being fitted into said outside material; means for rotating said inside material; and means for generating frictional heat at a joining face between said outside material and said inside material by pressurizing said inside material to said outside material from the inside of said inside material so as to ensure that both of said outside material and said inside material can be pressurized uniformly via said projection almost entirely circumferentially while said inside material is rotated.
Claim 12
Dependent Claim
180 words
A friction welding apparatus for joining a rim and a disc of a disc wheel, said rim being an outside material and said disc being an inside material, said inside material being able to be fitted into said outside material, said outside material being provided with a projection around the inside circumference thereof, said projection protruding so that said projection can be opposed to said inside material almost entirely circumferentially when said inside material being fitted into said outside material, comprising: means for fixing firmly the outer circumference of said outside material almost entirely circumferentially when said inside material is in the state of being fitted into said outside material; means for rotating said inside material; and means for generating frictional heat at a joining face between said outside material and said inside material by pressurizing said inside material to said outside material from the inside of said inside material so as to ensure that both of said outside material and said inside material can be pressurized uniformly via said projection almost entirely circumferentially while said inside material is rotated.
Claim 13
Dependent Claim
103 words
The friction welding apparatus for joining a rim and a disc of a disc wheel as claimed in claim 6, wherein said means for generating frictional heat at a joining face between said outside material and said inside material by pressurizing said inside material to said outside material from the inside of said inside material so as to ensure that both of said outside material and said inside material can be pressurized uniformly via said projection almost entirely circumferentially comprises annular pressurizing pieces disposed on the inside circumference of said inside material almost entirely circumferentially and means for expanding said annular pressurizing pieces.
Claim 14
Dependent Claim
60 words
The friction welding apparatus for joining a rim and a disc of a disc wheel as claimed in claim 6, wherein said means for rotating said inside material comprises a rotation axis disposed coaxially in the center of said outside material and said inside material and means for transmitting the turning force of said rotation axis to said inside material.
Claim 15
Dependent Claim
76 words
The friction welding apparatus for joining a rim and a disc of a disc wheel as claimed in claim 7, wherein said means for expanding said annular pressurizing pieces comprises a rotation axis provided with a tapered portion, said rotation axis being disposed in the center of said pressurizing pieces, said tapered portion being in the state of being inserted into said pressurizing pieces, both said rotation axis and said pressurizing pieces being movable relatively axially.
Claim 16
Dependent Claim
95 words
The friction welding apparatus for joining a rim and a disc of a disc wheel as claimed in claim 5, wherein said means for fixing firmly the outer circumference of said outside material almost entirely circumferentially comprises a fixing jig provided with the contour of the inner circumference substantially corresponding with the contour of said outer circumference of said outside material, said fixing jig being disposed in close contact with said outer circumference of said outside material so that said fixing jig can fix firmly said outer circumference of said outside material almost entirely circumferentially.
Claim 17
Dependent Claim
95 words
The friction welding apparatus for joining a rim and a disc of a disc wheel as claimed in claim 6, wherein said means for fixing firmly the outer circumference of said outside material almost entirely circumferentially comprises a fixing jig provided with the contour of the inner circumference substantially corresponding with the contour of said outer circumference of said outside material, said fixing jig being disposed in close contact with said outer circumference of said outside material so that said fixing jig can fix firmly said outer circumference of said outside material almost entirely circumferentially.
References Cited (Backward Citations)
No citation records indexed.
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