WO2016148292A1 - 接合部品及びその製造方法 - Google Patents
接合部品及びその製造方法 Download PDFInfo
- Publication number
- WO2016148292A1 WO2016148292A1 PCT/JP2016/058805 JP2016058805W WO2016148292A1 WO 2016148292 A1 WO2016148292 A1 WO 2016148292A1 JP 2016058805 W JP2016058805 W JP 2016058805W WO 2016148292 A1 WO2016148292 A1 WO 2016148292A1
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- WO
- WIPO (PCT)
- Prior art keywords
- metal piece
- welding
- flow path
- specific
- joining
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/10—Clutch systems with a plurality of fluid-actuated clutches
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K15/00—Electron-beam welding or cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K15/00—Electron-beam welding or cutting
- B23K15/0046—Welding
- B23K15/0053—Seam welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K15/00—Electron-beam welding or cutting
- B23K15/04—Electron-beam welding or cutting for welding annular seams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam welding
- B23K26/28—Seam welding of curved planar seams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam welding
- B23K26/28—Seam welding of curved planar seams
- B23K26/282—Seam welding of curved planar seams of tube sections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/08—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of welds or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D13/00—Friction clutches
- F16D13/58—Details
- F16D13/60—Clutching elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/06—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch
- F16D25/062—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces
- F16D25/063—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially
- F16D25/0635—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs
- F16D25/0638—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs with more than two discs, e.g. multiple lamellae
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2250/00—Manufacturing; Assembly
- F16D2250/0061—Joining
- F16D2250/0076—Welding, brazing
Definitions
- the present invention relates to a joined part composed of a plurality of metal pieces welded to each other and a method for manufacturing the same.
- the present invention has been made in view of such a background, and in a joined part obtained by joining two metal pieces having a flow path, the flow path is ensured, fluid is prevented from leaking from the flow path, and the metal pieces are connected to each other.
- the present invention has been obtained in an attempt to provide a joining component that realizes securing of the joining strength and a manufacturing method thereof.
- the first metal piece and the second metal piece are joined by performing welding by irradiation with a high energy beam on a joint surface where the first metal piece and the second metal piece face each other.
- a method of obtaining a joined part The first metal piece is provided with a first flow path through which a fluid passes at a specific depth from the surface irradiated with the high energy beam, and the high energy beam is provided on the second metal piece.
- a second flow path through which a fluid passes from the surface on the irradiation side to a specific depth is provided, and the first flow path and the second flow path are connected at the joint surface;
- the connection portion is reached in the first range of the joint surface including a specific portion overlapping the connection portion between the first flow path and the second flow path.
- First welding for welding at a penetration depth that does not In the second range of the joint surface excluding the specific part there is a second welding in which welding is performed at a penetration depth deeper than the penetration depth by the first welding.
- Another aspect of the present invention is a joined component joined at a joining surface where the first metal piece and the second metal piece face each other,
- the first metal piece is provided with a first flow path through which a fluid passes from the specific surface to a specific depth
- the second metal piece has a first flow path through which the fluid passes from the specific surface to a specific depth.
- 2 flow paths are provided, and the first flow path and the second flow path are connected at the joint surface,
- the first range of the joint surface including the specific part overlapping the connection part between the first flow path and the second flow path has a penetration depth that does not reach the connection part.
- the joint part is provided with a large bead portion having a deeper penetration depth than the penetration depth of the small bead portion.
- the connection part of the 1st channel and the 2nd channel is located in the joined surface of the 1st metal piece and the 2nd metal piece, welding by irradiation of a high energy beam I have devised when doing.
- the first welding is performed at a penetration depth that does not reach the connection site in the first range of the joint surface.
- the first range of the joint surface is determined as a range including a specific portion that overlaps with a connection portion between the first flow path and the second flow path when viewed from the surface side irradiated with the high energy beam.
- the penetration depth of welding since the penetration depth of welding is shallow, it can prevent that the part of the 1st metal piece and 2nd metal piece located in the periphery of a connection part melt
- 2nd welding is performed in the 2nd range of a joint surface with the penetration depth deeper than the penetration depth by 1st welding.
- the second range of the joint surface is determined as a range excluding the specific portion. According to 2nd welding, since the penetration depth of welding is deep, the joint strength of a 1st metal piece and a 2nd metal piece can be ensured appropriately. Further, by combining the first welding and the second welding, either the first welding or the second welding is applied to the entire range of the joint surface viewed from the surface side irradiated with the high energy beam; Become. Therefore, the airtightness of the connection part of the 1st flow path and the 2nd flow path in the surface irradiated with a high energy beam is ensured. And it can prevent that a fluid leaks from the connection part to the surface where a high energy beam is irradiated. Therefore, it is possible to simplify the structure that protects the connecting portion from melting by welding and ensures the airtightness of the connecting portion.
- the connection portion of the first flow path and the second flow path is protected, the leakage of the fluid from the first flow path and the second flow path, and the first metal piece.
- achieve ensuring of the joining strength of a 2nd metal piece can be manufactured.
- the joining component has a connection portion between the first flow path and the second flow path on the joint surface between the first metal piece and the second metal piece.
- the formation state of the weld bead in a joining component differs in the 1st range of a joining surface, and the 2nd range of a joining surface.
- a small bead portion having a penetration depth that does not reach the connecting portion is provided in the first range of the joint surface.
- the connecting portion of the first flow path and the second flow path can be protected from melting by welding.
- a large bead portion having a penetration depth deeper than the penetration depth of the small bead portion is provided in the second range of the joint surface.
- the bonding strength between the first metal piece and the second metal piece can be appropriately ensured. Further, depending on the combination of the small bead portion and the large bead portion, either the small bead portion or the large bead portion is provided in the entire range of the joint surface viewed from the specific surface side. Therefore, it is possible to prevent the fluid from leaking to the specific surface from the connection portion of the first flow path and the second flow path.
- the “specific surface” means a surface on the side where the weld beads of the small bead portion and the large bead portion are formed. Further, the “specific surface” is a surface on the side irradiated with the high energy beam.
- the specific depth in which the first flow path is provided in the first metal piece and the specific depth in which the second flow path is provided in the second metal piece are as described above. It can be in the vicinity of the surface irradiated with the high energy beam. This specific depth can be made shallower than the penetration depth by the second welding. More specifically, the specific depth can be set to a depth of 2 to 10 mm from the surface irradiated with the high energy beam.
- the second welding can be performed after the first welding is performed.
- the first metal piece and the second metal piece are temporarily fixed by the first welding having a shallow welding penetration depth
- the first metal is obtained by the second welding having a deep welding penetration depth. Welding of the piece and the second metal piece can be performed. Therefore, when performing 2nd welding, it can prevent that a 1st metal piece and a 2nd metal piece deform
- the second welding can be started in the middle of the first welding.
- the first welding can also be performed after the second welding is performed.
- the second welding having a deep welding penetration depth is performed before the first welding having a shallow welding penetration depth.
- 1st welding is performed. Therefore, it is possible to make it difficult for a gap to be generated in the deep portion of the joint surface between the first metal piece and the second metal piece, and to more effectively secure the airtightness of the connection portion of the first flow path and the second flow path.
- the first welding can be started in the middle of the second welding. In this case, it is also possible to start the first welding for the site where the second welding has already been performed.
- the first range can be the entire range of the joint surface when viewed from the surface side irradiated with the high energy beam.
- the first welding can be performed continuously over the entire range of the joint surface, and the control of the start and end of the first welding can be simplified.
- the first metal piece is an outer metal piece having a through hole
- the second metal piece is an inner metal piece fitted into the through hole
- the joining The surface may be formed by the inner peripheral surface of the through hole and the outer peripheral surface of the inner metal piece.
- the first welding and the second welding are performed on the annular joint surface to protect the connection portion of the first flow path and the second flow path, and the fluid leaks from the first flow path and the second flow path.
- the specific part is formed at a plurality of places on the joining surface when viewed from the surface side irradiated with the high-energy beam, and the second welding is performed adjacently to 2
- the irradiation position of the high energy beam in a first direction from one specific part along the joint surface to the other specific part and a second direction opposite to the first direction Can be carried out alternately and continuously.
- the welding start part (rising part) and the welding end part (falling part) are: This is the part where the heat input is reduced and the weld penetration depth is reduced.
- the second welding is intermittently performed in a plurality of second ranges of the joining surface, so that the welding start portion and the welding end portion of the second welding are performed. And many are formed.
- the second welding is performed by alternately moving the irradiation position of the high energy beam in the first direction and the second direction between two adjacent specific parts, so that the welding start portion and the welding are performed.
- the welding is repeatedly performed on the end portion. For this reason, it is possible to ensure the amount of heat input to the welding start portion and the welding end portion, and the penetration depth in the entire second range of the joint surface can be made close to uniform.
- the joining component by the first metal piece and the second metal piece is a clutch drum, and the clutch drum engages the clutch together with the piston accommodated in the clutch drum. Therefore, the first flow path and the second flow path may be formed as an oil path for supplying hydraulic oil to the oil chamber.
- the joining component and the manufacturing method thereof can be employed when manufacturing a clutch drum.
- the joining component and the manufacturing method thereof can be employed for various components other than the clutch drum.
- the high energy beam can be an electron beam, a laser beam, an ion beam, or the like.
- Electron beam welding by an electron beam utilizes collision of electrons discharged from a fermentor.
- Laser beam welding using a laser beam utilizes heat generated from the laser beam.
- Ion beam welding using an ion beam utilizes a beam generated by accelerating ions with an electric field.
- the joining component 1 of this example includes two metal pieces 2 ⁇ / b> A and 2 ⁇ / b> B welded to each other.
- the outer metal piece 2A as the first metal piece and the inner metal piece 2B as the second metal piece are welded by irradiation with a high energy beam on the joint surface 4 where the outer metal piece 2A and the inner metal piece 2B face each other. Done and joined.
- the outer metal piece 2A is provided with a first flow path 3A through which a fluid passes to a specific depth from the surface 23 on the side irradiated with the high energy beam.
- the inner metal piece 2B is provided with a second flow path 3A through which a fluid passes to a specific depth from the surface 23 on the side irradiated with the high energy beam.
- the second flow path 3B and the first flow path 3A are connected at the joint surface 4.
- the bonding surface 4 includes a specific portion P that overlaps with a connection portion 30 between the first flow path 3 ⁇ / b> A and the second flow path 3 ⁇ / b> B when viewed from the surface 23 side irradiated with the high energy beam.
- a small bead portion 51 having a penetration depth D1 that does not reach the connecting portion 30 is provided.
- a large bead portion 52 having a penetration depth D2 deeper than the penetration depth D1 of the small bead portion 51 is provided in the second range R2 other than the first range R1 of the joint surface 4. .
- the joining component 1 is a clutch drum used in an automatic transmission, and is made of an aluminum material.
- the two metal pieces 2 ⁇ / b> A and 2 ⁇ / b> B constituting the joining component 1 are an outer metal piece 2 ⁇ / b> A having a through hole 21 and an inner metal piece 2 ⁇ / b> B fitted in the through hole 21.
- the outer metal piece 2A and the inner metal piece 2B are integrated by welding to form a clutch drum.
- the joint surface 4 where the two metal pieces 2A and 2B are combined is formed in a circular shape by the inner peripheral surface 211 of the through hole 21 of the outer metal piece 2A and the outer peripheral surface 22 of the inner metal piece 2B.
- the two metal pieces 2A and 2B are formed in a cylindrical shape having a partial bottom, and the first flow path 3A and the second flow path 3B are radially centered on the central portion 24 of the inner metal piece 2B.
- a plurality are formed.
- the welding by the high energy beam of this example is performed toward the circumferential direction C of the outer metal piece 2A and the inner metal piece 2B.
- the circumferential direction C in which welding with the high energy beam is performed can also be expressed as the irradiation direction C of the high energy beam on the joint surface 4.
- the specific part P is a part where the connection part 30 between the first flow path 3A and the second flow path 3B is provided on the circular joint surface 4 of the outer metal piece 2A and the inner metal piece 2B.
- the specific portions P are formed at a plurality of locations (eight locations in this example) in the circumferential direction C of the circular joint surface 4.
- the small bead portion 51 and the large bead portion 52 are formed at a plurality of locations in the circumferential direction C, respectively.
- part P be a range of the width
- the first range R1 may be a range having a width that is two to three times the width of the connecting portion 30 in the circumferential direction C, and the connecting portion 30 may be set as the center in the circumferential direction C of the first range R1.
- the clutch drum as the joining component 1 forms an oil chamber 62 for engaging the clutch together with the piston 61 accommodated in the clutch drum.
- a piston 61 for operating the clutch is slidably disposed inside the outer metal piece 2A.
- the first flow path 3 ⁇ / b> A and the second flow path 3 ⁇ / b> B are formed as oil paths for supplying hydraulic oil to the oil chamber 62.
- the outer metal piece 2 ⁇ / b> A is composed of a bottom surface portion 25, an outer cylindrical portion 26 erected from the outer peripheral end portion of the bottom surface portion 25, and an inner periphery erected from the inner peripheral end portion of the bottom surface portion 25. And a cylindrical portion 27.
- the first flow path 3 ⁇ / b> A communicates with an oil chamber 62 surrounded by the bottom surface portion 25, the outer peripheral cylindrical portion 26, the inner peripheral cylindrical portion 27, and the piston 61.
- the piston 61 slides when the pressure of the hydraulic oil supplied to the oil chamber 62 is increased, and is fitted into a tooth profile portion 261 formed on the inner peripheral surface of the outer peripheral cylindrical portion 26 of the outer metal piece 2A.
- the piston 61 is configured to slide to the original position by the spring 63 when the pressure of the hydraulic oil supplied to the oil chamber 62 becomes low.
- the first flow path 3A in the outer metal piece 2A and the second flow path 3B in the inner metal piece 2B are communicated with each other in various forms on the joint surface 4.
- the first flow path 3A and the second flow path 3B can each be provided in the shape of a hole in the radial direction of the outer metal piece 2A and the inner metal piece 2B, as shown by the first portion S1 in FIG.
- the first flow path 3A can be provided in the vicinity of the joint surface 4 of the outer metal piece 2A
- the second flow path 3B is formed by the inner metal piece 2B. It can also be provided in the shape of a hole in the radial direction.
- a groove portion 31 can be formed in the connection portion 30 between the first flow path 3A and the second flow path 3B.
- the joining strength is secured by the large bead portion 52, and the connecting portion 30 of the first flow path 3A and the second flow path 3B is secured by the small bead portion 51.
- the small bead portion 51 of the present example seals the gap formed in the connection portion 30 located on the joint surface 4 from the surface 23 (the surface 23 on the side where the welding penetration is started) irradiated with the high energy beam. Stop.
- the portion on the surface 23 side of the joint surface 4 is sealed by the small bead portion 51 and the large bead portion 52. As a result, leakage to the surface 23 is prevented.
- the sealing structure of the connecting portion 30 can be simplified.
- the small bead portion 51 is formed at the formation portion of the connecting portion 30 on the joint surface 4, the shapes of the flow paths 3 ⁇ / b> A and 3 ⁇ / b> B are protected from melting by welding.
- the small bead portion 51 also functions as a temporary fixing weld between the outer metal piece 2A and the inner metal piece 2B.
- the large bead portion 52 is formed after the small bead portion 51 is formed, and the exposed end portion 511 (with the large bead portion 52 of the small bead portion 51 is formed.
- the end portion of the large bead portion 52 overlaps the end portion located at the boundary.
- the penetration depth D1 of the small bead portion 51 is set to the minimum penetration depth that can be welded by high energy beam welding which is electron beam welding or laser beam welding.
- the penetration depth D1 of the small bead portion 51 can be set to 0.5 to 2 mm, for example.
- the penetration depth D2 of the large bead portion 52 is a penetration depth for obtaining a sufficient joining strength between the two metal pieces 2A and 2B.
- the penetration depth D2 of the large bead portion 52 can be set to 4 to 10 mm, for example.
- the manufacturing method of the joining component 1 of this example is demonstrated.
- welding is performed along the circumferential direction C of the circular joining surface 4 where the outer metal piece 2A and the inner metal piece 2B face each other, and the outer metal piece 2A and the inner metal piece
- the joining component 1 joined to 2B is obtained.
- the outer metal piece 2A and the inner metal piece 2B which are connected to the first flow path 3A and the second flow path 3B through the bonding surface 4, are joined.
- the outer metal piece 2A and the inner metal piece 2B are obtained by performing electron beam welding as fusion welding in which the base material is melted and joined in two stages by one welding apparatus. Join.
- the inner metal piece 2B is fitted into the through hole 21 of the outer metal piece 2A, and the outer metal piece 2A and the inner metal piece 2B are combined.
- the inner diameter of the through hole 21 of the outer metal piece 2A is made slightly smaller than the outer diameter of the inner metal piece 2B, and the inner metal piece 2B is fitted into the outer metal piece 2A by press fitting.
- the entire circumference of the inner metal piece 2B is in close contact with the entire circumference of the outer metal piece 2A, and no gap is generated in the entire circumference of the joint surface 4 between the outer metal piece 2A and the inner metal piece 2B. it can.
- the first and second flow paths 3A and 3A are irradiated with the electron beam.
- the first welding is performed at a penetration depth D1 that does not reach 3B.
- the gap between the inner peripheral surface 211 of the through hole 21 of the outer metal piece 2A and the outer peripheral surface 22 of the inner metal piece 2B can be blocked from the surface 23 side of the outer metal piece 2A and the inner metal piece 2B.
- the irradiation intensity of the electron beam in the welding apparatus is set as weak as possible.
- the gap between the connecting portions 30 of the first flow path 3A and the second flow path 3B located on the joint surface 4 is sealed from the surface 23 on the side irradiated with the electron beam. .
- a small bead portion 51 having a penetration depth D1 of 0.5 to 2 mm is formed in the entire range of the joint surface 4 in the circumferential direction C.
- the same welding apparatus as the welding apparatus that performed the first welding is used to remove the specific portion P in the circumferential direction C of the joint surface 4.
- 2nd welding is performed with the penetration depth D2 deeper than the penetration depth D1 by 1st welding.
- the second welding is performed by setting the irradiation intensity of the electron beam in the welding apparatus to be stronger than the irradiation intensity when performing the first welding for the purpose of joining the outer metal piece 2A and the inner metal piece 2B.
- the second welding is performed by irradiating an electron beam from above the small bead portion 51 as a weld bead by the first welding in the second range R2 in the circumferential direction C of the joint surface 4. Further, the second welding is performed by repeatedly moving alternately to one side and the other side in the circumferential direction C of the joint surface 4 in the second range R2. In other words, in the second welding, between the two adjacent specific parts P, the first direction C1 and the first direction C1 from the one specific part P to the other specific part P along the joint surface 4 are opposite to each other. In the second direction C2, the irradiation position of the high energy beam is alternately moved continuously.
- a large bead portion 52 having a penetration depth D2 of 4 to 10 mm is formed. Note that the second welding can be started from above the portion where the first welding has already been performed before the first welding is performed on the entire circumference in the circumferential direction C of the joint surface 4.
- the formation state of the weld beads 51 and 52 in the joining component 1 of the present example is different between the vicinity of the connection portion 30 of the first flow path 3A and the second flow path 3B and other portions.
- the connecting portion 30 between the first flow path 3A and the second flow path 3B In the circumferential direction C of the joint surface 4 between the outer metal piece 2A and the inner metal piece 2B, when viewed from the surface 23 irradiated with the high energy beam, the connecting portion 30 between the first flow path 3A and the second flow path 3B.
- a small bead portion 51 having a penetration depth D1 that does not reach the flow path 3 is provided in the first range R1 including the specific portion P that overlaps with the first portion R1.
- a large bead portion 52 having a penetration depth D2 deeper than the penetration depth D1 of the small bead portion 51 is provided in the second range R2 other than the first range R1.
- the bonding strength between the outer metal piece 2A and the inner metal piece 2B can be appropriately ensured.
- either the small bead portion 51 or the large bead portion 52 has the entire range of the bonding surface 4 as viewed from the surface 23 side irradiated with the high energy beam. Will be provided. Therefore, it is possible to prevent the hydraulic oil from leaking from the connection portion 30 of the first flow path 3A and the second flow path 3B to the surface 23 irradiated with the high energy beam.
- the joining component 1 of this example protection of the connecting portion 30 of the first flow path 3A and the second flow path 3B, prevention of fluid leakage from the first flow path 3A and the second flow path 3B, Furthermore, it is possible to ensure the bonding strength between the outer metal piece 2A and the inner metal piece 2B.
- the 1st welding of a 1st welding process is performed as temporary welding before performing the main welding of the outer side metal piece 2A and the inner side metal piece 2B.
- the first welding as the temporary welding, since the penetration depth D1 of the welding is shallow, it is possible to prevent the portions of the outer metal piece 2A and the inner metal piece 2B located around the connection portion 30 from melting. it can. Thereby, it can prevent that the 1st flow path 3A and the 2nd flow path 3B become narrow, or it is blocked
- the welding penetration depth D2 is deep, so that the joining strength between the outer metal piece 2A and the inner metal piece 2B is appropriately secured. can do.
- either the first welding or the second welding is applied to the entire range of the joint surface 4 as viewed from the surface 23 side irradiated with the electron beam. It becomes. Therefore, the airtightness of the connection part 30 of the 1st flow path 3A and the 2nd flow path 3B in the surface 23 irradiated with a high energy beam is ensured. And it can prevent that hydraulic fluid leaks from the connection part 30 to the surface 23 where a high energy beam is irradiated. Therefore, the structure which secures the airtightness of the connection part 30 by protecting the connection part 30 from melting by welding can be simplified.
- the second welding in the second range R2 other than the first range R1 is performed at a constant speed toward one direction of the circumferential direction C of the joint surface 4 between the outer metal piece 2A and the inner metal piece 2B.
- the welding start portion (rising portion) and the welding end portion (falling portion) have a small amount of heat input, and the welding penetration depth becomes shallow.
- 2nd welding is intermittently performed to several 2nd range R2, many welding start parts and welding end parts of 2nd welding are formed.
- the irradiation positions of the high energy beam are alternately and continuously arranged in the first direction C1 and the second direction C2 between two adjacent specific parts P. Move and do.
- welding is repeatedly performed on the first end portion 501 serving as a welding start portion and the second end portion 502 serving as a welding end portion. Therefore, the amount of heat input to the welding start portion and the welding end portion can be ensured, and the penetration depth in the entire second range R2 can be made close to uniform.
- the outer metal piece 2A and the inner metal piece 2B are temporarily fixed by the first welding in which the welding penetration depth D1 is shallow, the outer metal piece 2A is obtained by the second welding in which the welding penetration depth D2 is deep. And the inner metal piece 2B can be subjected to main welding. Therefore, when performing the second welding, it is possible to prevent the outer metal piece 2 ⁇ / b> A and the inner metal piece 2 ⁇ / b> B from being deformed due to thermal distortion of the welding by performing the temporary fixing by the first welding. it can. Further, by performing the first welding and the second welding with the same welding apparatus, the manufacturing process of the joined part 1 manufactured by performing two types of welding can be simplified, and the manufacturing cost can be reduced.
- Example 2 In this example, after the second welding is performed in the second range R2 with the penetration depth D2 that can reach the first flow path 3A and the second flow path 3B, the first flow path 3A and the second flow path 3B are reached.
- the manufacturing method of the joining component 1 which performs 1st welding to 1st range R1 with the penetration depth D1 which is not performed is shown.
- the 1st welding process shown in Example 1 is performed.
- the metal material near the surface 23 on the side irradiated with the high energy beam is melted and re-solidified. Is called.
- the metal material solidifies and shrinks at the portion of the penetration depth D1 of the small bead portion 51 by the first welding, while at the portion deeper than the penetration depth D1. Solidification shrinkage of the metal material does not occur.
- the part deeper than the penetration depth D1 particularly the part deeper than the part where the first flow path 3A and the second flow path 3B are formed. May cause a gap between the outer metal piece 2A and the inner metal piece 2B.
- the 1st welding process is performed to the whole area of the circumferential direction C of the joint surface 4, or 1st range R1.
- part in the joint surface 4 of 2 A of outer side metal pieces and the inner side metal piece 2B can be fuse
- the metal material in a wide range from the shallow part to the deep part in the second range R2 of the joint surface 4 is melted and solidified and contracted, so that the joining strength between the outer metal piece 2A and the inner metal piece 2B is sufficient. Can be secured.
- the first welding in this example can be performed over the entire area in the circumferential direction C of the joint surface 4 between the outer metal piece 2A and the inner metal piece 2B. Further, the first welding in this example can be performed only in the first range R1 in the circumferential direction C of the joint surface 4. In particular, when welding the outer metal piece 2A and the inner metal piece 2B, which is easily deformed by heat input, it is preferable to perform the first welding in this example only in the first range R1.
- the advantage of performing the first welding after performing the second welding has been described.
- the first welding and the second welding it can be determined which one is to be performed first depending on the type of the outer metal piece 2A and the inner metal piece 2B as a workpiece to be welded. Specifically, considering the differences in material (thermal conductivity), shape, solidification shrinkage during heating / cooling, heat input due to irradiation conditions of high energy beam during welding, etc. It is possible to determine which of the welding and the second welding is performed first. Further, in consideration of the deformation generated in the outer metal piece 2A and the inner metal piece 2B by the first welding and the deformation generated in the outer metal piece 2A and the inner metal piece 2B by the second welding, the first welding and the second welding Can be determined first.
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Abstract
Description
例えば、特許文献1の金属管同士のレーザ突合せ溶接方法においては、管厚みよりも浅い溶け込み深さで突合せ部を仮付け溶接する工程と、管厚み方向の全域を貫通するように溶解させて突合せ部の全周を本溶接する工程とを行っている。
上記第1金属片には、上記高エネルギービームが照射される側の表面から特定の深さに流体が通過する第1流路が設けられ、上記第2金属片には、上記高エネルギービームが照射される側の表面から特定の深さに流体が通過する第2流路が設けられ、上記第1流路と上記第2流路とは、上記接合面において連結されており、
上記高エネルギービームが照射される表面側から見た場合に上記第1流路と上記第2流路との連結部位に重なる特定部位を含む上記接合面の第1範囲に、上記連結部位に到達しない溶け込み深さで溶接を行う第1溶接と、
上記特定部位を除く上記接合面の第2範囲に、上記第1溶接による溶け込み深さよりも深い溶け込み深さで溶接を行う第2溶接と、を含む、接合部品の製造方法にある。
上記第1金属片には、特定表面から特定の深さに流体が通過する第1流路が設けられ、上記第2金属片には、上記特定表面から特定の深さに流体が通過する第2流路が設けられ、上記第1流路と上記第2流路とは、上記接合面において連結されており、
上記特定表面側から見た場合に上記第1流路と上記第2流路との連結部位に重なる特定部位を含む上記接合面の第1範囲には、上記連結部位に到達しない溶け込み深さの小ビード部が設けられており、
上記特定部位を除く上記接合面の第2範囲には、上記小ビード部の溶け込み深さよりも深い溶け込み深さの大ビード部が設けられている、接合部品にある。
具体的には、接合面の第1範囲に、連結部位に到達しない溶け込み深さで第1溶接を行う。この接合面の第1範囲は、高エネルギービームが照射される表面側から見た場合に第1流路と第2流路との連結部位に重なる特定部位を含む範囲として定める。
第1溶接によれば、溶接の溶け込み深さが浅いために、連結部位の周辺に位置する第1金属片及び第2金属片の部分が溶融することを防止することができる。これにより、第1流路及び第2流路が狭くなったり、塞がれたりすることを防止することができ、連結部位を溶接による溶融から保護することができる。また、第1溶接によれば、短時間で溶接を行うことができ、第1金属片及び第2金属片における溶接の熱歪みによる熱変形量を小さく抑えることができる。
また、第1溶接と第2溶接との組合せによって、第1溶接と第2溶接とのいずれかが、高エネルギービームが照射される表面側から見た接合面の全範囲に施されることとなる。そのため、高エネルギービームが照射される表面における、第1流路及び第2流路の連結部位の気密性が確保される。そして、連結部位から、高エネルギービームが照射される表面へ流体が漏れ出すことを防止することができる。そのため、連結部位を溶接による溶融から保護して、連結部位の気密性を確保する構造を簡単にすることができる。
具体的には、接合面の第1範囲には、連結部位に到達しない溶け込み深さの小ビード部が設けられている。この小ビード部の形成により、第1流路及び第2流路の連結部位を溶接による溶融から保護することができる。一方、接合面の第2範囲には、小ビード部の溶け込み深さよりも深い溶け込み深さの大ビード部が設けられている。この大ビード部の形成により、第1金属片と第2金属片との接合強度を適切に確保することができる。また、小ビード部と大ビード部との組合せによって、小ビード部と大ビード部とのいずれかが、特定表面側から見た接合面の全範囲に設けられることとなる。そのため、第1流路及び第2流路の連結部位から、特定表面へ流体が漏れ出すことを防止することができる。
なお、「特定表面」とは、小ビード部及び大ビード部の溶接ビードが形成された側の表面のことをいう。また、「特定表面」は、高エネルギービームが照射された側の表面となる。
上記接合部品及びその製造方法においては、上記第1金属片に第1流路が設けられた特定の深さ及び上記第2金属片に第2流路が設けられた特定の深さは、上記高エネルギービームが照射される側の表面の近傍とすることができる。この特定の深さは、第2溶接による溶け込み深さよりも浅い深さとすることができる。より具体的には、特定の深さは、高エネルギービームが照射される側の表面から2~10mmの深さとすることができる。
この場合には、溶接の溶け込み深さが浅い第1溶接によって、第1金属片と第2金属片との仮止めを行った後、溶接の溶け込み深さが深い第2溶接によって、第1金属片と第2金属片との溶接を行うことができる。そのため、第2溶接を行う際には、第1溶接による仮止めによって、第1金属片と第2金属片とが、溶接の熱歪みによって変形することを阻止することができる。
なお、第2溶接は、第1溶接が行われている途中から開始することも可能である。
この場合には、溶接の溶け込み深さが深い第2溶接を、溶接の溶け込み深さが浅い第1溶接よりも先に行う。そして、第2溶接によって、第1金属片及び第2金属片における表面付近だけでなく深部まで溶け込ませた後、第1溶接を行う。そのため、第1金属片と第2金属片との接合面における深部に隙間が生じにくくすることができ、第1流路及び第2流路の連結部位の気密性をより効果的に確保することができる。
なお、第1溶接は、第2溶接が行われている途中から開始することも可能である。この場合、第2溶接が既に行われた部位に対して第1溶接を開始することも可能である。
この場合には、第1溶接を接合面の全範囲に連続して行うことができ、第1溶接の開始及び終了の制御を簡単にすることができる。
この場合は、環状の接合面において第1溶接と第2溶接とを行って、第1流路及び第2流路の連結部位の保護、第1流路及び第2流路からの流体の漏れの防止、さらに第1金属片及び第2金属片の接合強度の確保を実現することができる。
第1金属片と第2金属片との接合面において、一方向に向けて一定の速度で溶接を行う際には、溶接開始部分(立ち上がり部分)と溶接終了部分(立ち下り部分)とは、入熱量が少なくなり、溶接の溶け込み深さが浅くなる部分である。特に、特定部位が接合面の複数個所に形成されている場合には、第2溶接は、接合面の複数の第2範囲に断続的に行うため、第2溶接の溶接開始部分と溶接終了部分とは多く形成される。
上記接合部品及びその製造方法は、クラッチドラムを製造する際に採用することができる。上記接合部品及びその製造方法は、クラッチドラム以外の種々の部品に採用することもできる。
(実施例1)
本例の接合部品1は、図1、図2に示すように、互いに溶接された2つの金属片2A,2Bから構成されている。第1金属片としての外側金属片2Aと第2金属片としての内側金属片2Bとは、外側金属片2Aと内側金属片2Bとが対面する接合面4に、高エネルギービームの照射による溶接が行われて接合されている。外側金属片2Aには、高エネルギービームが照射される側の表面23から特定の深さに流体が通過する第1流路3Aが設けられている。内側金属片2Bには、高エネルギービームが照射される側の表面23から特定の深さに流体が通過する第2流路3Aが設けられている。第2流路3Bと第1流路3Aとは、接合面4において連結されている。
図1、図2に示すように、接合部品1は、自動変速機に用いられるクラッチドラムであり、アルミニウム材料から構成されている。接合部品1を構成する2つの金属片2A,2Bは、貫通穴21を有する外側金属片2Aと、貫通穴21に嵌め込まれた内側金属片2Bとである。外側金属片2A及び内側金属片2Bは、溶接によって一体化されてクラッチドラムを構成する。2つの金属片2A,2Bが合わさる接合面4は、外側金属片2Aの貫通穴21の内周面211と内側金属片2Bの外周面22とによって円形状に形成されている。
本例の高エネルギービームによる溶接は、外側金属片2A及び内側金属片2Bの周方向Cに向けて行われている。この高エネルギービームによる溶接が行われる周方向Cは、接合面4における高エネルギービームの照射方向Cとして表現することもできる。特定部位Pは、外側金属片2A及び内側金属片2Bの円形状の接合面4において、第1流路3Aと第2流路3Bとの連結部位30が設けられた部位である。特定部位Pは、円形状の接合面4の周方向Cにおける複数個所(本例では8カ所)に形成されている。小ビード部51及び大ビード部52は、周方向Cの複数個所にそれぞれ形成されている。
図2に示すように、接合部品1としてのクラッチドラムは、クラッチドラムに収容されるピストン61とともに、クラッチを係合させるための油室62を形成するものである。外側金属片2Aの内側には、クラッチを作動させるためのピストン61が摺動可能に配置されている。ピストン61と外側金属片2Aとの間には、ピストン61を摺動させるための作動油が供給される油室62が形成されている。第1流路3A及び第2流路3Bは、油室62へ作動油を供給するための油路として形成されている。
ピストン61は、油室62に供給される作動油の圧力が高くなることによって摺動し、外側金属片2Aの外周円筒部26の内周面に形成された歯形部261に嵌合される図示しない複数のセパレータプレートを押圧するよう構成されている。複数のセパレータプレートの間には、図示しない他部材(ハブ)に嵌合される摩擦プレートが配置されている。そして、外側金属片2A及び内側金属片2Bによるクラッチドラムと、図示しない他部材(ハブ)とが係合して、一体的に回転可能となる。また、ピストン61は、油室62に供給される作動油の圧力が低くなったときには、バネ63によって元の位置に摺動するよう構成されている。
図3、図4に示すように、小ビード部51の溶け込み深さD1は、電子ビーム溶接又はレーザービーム溶接である高エネルギービーム溶接によって溶接が可能な最小の溶け込み深さとする。小ビード部51の溶け込み深さD1は、例えば、0.5~2mmとすることができる。一方、大ビード部52の溶け込み深さD2は、2つの金属片2A,2Bの十分な接合強度を得るための溶け込み深さとする。大ビード部52の溶け込み深さD2は、例えば、4~10mmとすることができる。
本例の接合部品1の製造方法においては、外側金属片2Aと内側金属片2Bとが対面する円形状の接合面4の周方向Cに沿って溶接を行い、外側金属片2Aと内側金属片2Bとが接合された接合部品1を得る。また、本例の製造方法においては、接合面4を通って第1流路3Aと第2流路3Bとが繋がる、外側金属片2Aと内側金属片2Bとの接合を行う。また、本例の製造方法においては、1台の溶接装置によって2段階に、母材を溶融させて接合する融接としての電子ビーム溶接を行って、外側金属片2Aと内側金属片2Bとを接合する。
電子ビームの照射が繰り返し行われるごとに、溶接の溶け込み深さが深くなる。そして、接合面4の周方向Cにおける第1範囲R1以外の第2範囲R2には、溶け込み深さD2が4~10mmである大ビード部52が形成される。
なお、第2溶接は、第1溶接が接合面4の周方向Cの全周に行われる前に、第1溶接が既に行われた部位の上から開始することもできる。
本例の接合部品1における溶接ビード51,52の形成状態は、第1流路3A及び第2流路3Bの連結部位30の近傍と、その他の部位とで異なる。外側金属片2Aと内側金属片2Bとの接合面4の周方向Cにおいて、高エネルギービームが照射された表面23から見た場合に第1流路3Aと第2流路3Bとの連結部位30に重なる特定部位Pを含む第1範囲R1には、流路3に到達しない溶け込み深さD1の小ビード部51が設けられている。この小ビード部51の形成により、第1流路3A及び第2流路3Bの連結部位30を溶接による溶融から保護することができる。
また、小ビード部51と大ビード部52との組合せによって、小ビード部51と大ビード部52とのいずれかが、高エネルギービームが照射された表面23側から見た接合面4の全範囲に設けられることとなる。そのため、第1流路3A及び第2流路3Bの連結部位30から、高エネルギービームが照射された表面23へ作動油が漏れ出すことを防止することができる。
また、第1溶接と第2溶接との組合せによって、第1溶接と第2溶接とのいずれかが、電子ビームが照射される表面23側から見た接合面4の全範囲に施されることとなる。そのため、高エネルギービームが照射される表面23における、第1流路3A及び第2流路3Bの連結部位30の気密性が確保される。そして、連結部位30から、高エネルギービームが照射される表面23へ作動油が漏れ出すことを防止することができる。そのため、連結部位30を溶接による溶融から保護して、連結部位30の気密性を確保する構造を簡単にすることができる。
本例は、第1流路3A及び第2流路3Bに到達し得る溶け込み深さD2で第2範囲R2に第2溶接を行った後に、第1流路3A及び第2流路3Bに到達しない溶け込み深さD1で第1範囲R1に第1溶接を行う、接合部品1の製造方法について示す。
本例においては、実施例1に示した第2溶接工程を行った後、実施例1に示した第1溶接工程を行う。
外側金属片2Aと内側金属片2Bとの接合面4の周方向Cに第1溶接を行う際には、高エネルギービームが照射される側の表面23付近の金属材料の溶融及び再凝固が行われる。この場合、外側金属片2A及び内側金属片2Bにおける、第1溶接による小ビード部51の溶け込み深さD1の部位においては金属材料が凝固収縮する一方、この溶け込み深さD1よりも深い部位においては金属材料の凝固収縮が生じない。その結果、外側金属片2Aと内側金属片2Bとの接合面4における、溶け込み深さD1よりも深い部位、特に第1流路3A及び第2流路3Bが形成された部位よりも深い部位においては、外側金属片2Aと内側金属片2Bとの間に隙間が生じるおそれがある。
そして、第2溶接を行う際には、外側金属片2Aと内側金属片2Bとの接合面4における、浅い部位のみならず深い部位の金属材料も溶融させることができる。これにより、接合面4の第2範囲R2における浅い部位から深い部位までの広い範囲の金属材料が溶融して凝固収縮することになり、外側金属片2Aと内側金属片2Bとの接合強度を十分に確保することができる。そして、外側金属片2Aと内側金属片2Bとが強固に接合されていることにより、第2溶接を行った後に第1溶接を行う際に、第1溶接が行われる第1範囲R1の深い部位において隙間が生じるような変形が生じない。これにより、外側金属片2Aと内側金属片2Bとの接合強度の確保、及び第1流路3A及び第2流路3Bの連結部位30の気密性の確保を効果的に行うことができる。
また、第1溶接によって外側金属片2A及び内側金属片2Bに生じる変形と、第2溶接によって外側金属片2A及び内側金属片2Bに生じる変形とを考慮して、第1溶接と第2溶接とのいずれを先に行うかを決定することができる。
Claims (9)
- 第1金属片と第2金属片とが対面する接合面に、高エネルギービームの照射による溶接を行って、上記第1金属片と上記第2金属片とが接合された接合部品を得る方法であって、
上記第1金属片には、上記高エネルギービームが照射される側の表面から特定の深さに流体が通過する第1流路が設けられ、上記第2金属片には、上記高エネルギービームが照射される側の表面から特定の深さに流体が通過する第2流路が設けられ、上記第1流路と上記第2流路とは、上記接合面において連結されており、
上記高エネルギービームが照射される表面側から見た場合に上記第1流路と上記第2流路との連結部位に重なる特定部位を含む上記接合面の第1範囲に、上記連結部位に到達しない溶け込み深さで溶接を行う第1溶接と、
上記特定部位を除く上記接合面の第2範囲に、上記第1溶接による溶け込み深さよりも深い溶け込み深さで溶接を行う第2溶接と、を含む、接合部品の製造方法。 - 上記第2溶接は、上記第1溶接を行った後に行う、請求項1に記載の接合部品の製造方法。
- 上記第1溶接は、上記第2溶接を行った後に行う、請求項1に記載の接合部品の製造方法。
- 上記第1範囲は、上記高エネルギービームを照射する表面側から見た場合の上記接合面の全範囲とする、請求項2又は3に記載の接合部品の製造方法。
- 上記第1金属片は、貫通穴を有する外側金属片であり、上記第2金属片は、上記貫通穴に嵌め込まれた内側金属片であり、
上記接合面は、上記貫通穴の内周面と上記内側金属片の外周面とによって形成されている、請求項1~4のいずれか一項に記載の接合部品の製造方法。 - 上記特定部位は、上記高エネルギービームを照射する表面側から見た場合の上記接合面の複数個所に形成されており、
上記第2溶接は、隣り合う2つの上記特定部位の間において、一方の特定部位から上記接合面に沿って他方の特定部位に向かう第1方向と該第1方向とは反対の第2方向とに、上記高エネルギービームの照射位置を交互に連続して移動させて行う、請求項1~5のいずれか一項に記載の接合部品の製造方法。 - 第1金属片と第2金属片とが対面する接合面において接合された接合部品であって、
上記第1金属片には、特定表面から特定の深さに流体が通過する第1流路が設けられ、上記第2金属片には、上記特定表面から特定の深さに流体が通過する第2流路が設けられ、上記第1流路と上記第2流路とは、上記接合面において連結されており、
上記特定表面側から見た場合に上記第1流路と上記第2流路との連結部位に重なる特定部位を含む上記接合面の第1範囲には、上記連結部位に到達しない溶け込み深さの小ビード部が設けられており、
上記特定部位を除く上記接合面の第2範囲には、上記小ビード部の溶け込み深さよりも深い溶け込み深さの大ビード部が設けられている、接合部品。 - 上記第1金属片は、貫通穴を有する外側金属片であり、上記第2金属片は、上記貫通穴に嵌め込まれた内側金属片であり、
上記接合面は、上記貫通穴の内周面と上記内側金属片の外周面とによって形成されている、請求項7に記載の接合部品。 - 上記第1金属片と上記第2金属片とによる上記接合部品は、クラッチドラムであり、
該クラッチドラムは、該クラッチドラムに収容されるピストンとともに、クラッチを係合させるための油室を形成するものであり、
上記第1流路及び上記第2流路は、上記油室へ作動油を供給するための油路として形成されている、請求項7又は8に記載の接合部品。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
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| US15/540,739 US10393162B2 (en) | 2015-03-19 | 2016-03-18 | Joint part and manufacturing method therefor |
| DE112016000212.2T DE112016000212T5 (de) | 2015-03-19 | 2016-03-18 | Verbindungsteil und Herstellungsverfahren |
| CN201680012749.5A CN107405721B (zh) | 2015-03-19 | 2016-03-18 | 接合部件及其制造方法 |
| JP2017506227A JP6354899B2 (ja) | 2015-03-19 | 2016-03-18 | 接合部品及びその製造方法 |
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| JP2015056353 | 2015-03-19 | ||
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| JP (1) | JP6354899B2 (ja) |
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| TWI418707B (zh) * | 2010-09-03 | 2013-12-11 | Delta Electronics Inc | 風扇及其製造方法 |
| JP6923761B2 (ja) * | 2018-11-05 | 2021-08-25 | Nok株式会社 | 金属ガスケットの溶接箇所決定方法 |
| CN109664014A (zh) * | 2018-12-17 | 2019-04-23 | 中国航发动力股份有限公司 | 一种减少壳体类零件电子束焊接变形的工艺方法 |
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- 2016-03-18 DE DE112016000212.2T patent/DE112016000212T5/de not_active Withdrawn
- 2016-03-18 JP JP2017506227A patent/JP6354899B2/ja active Active
- 2016-03-18 CN CN201680012749.5A patent/CN107405721B/zh active Active
- 2016-03-18 US US15/540,739 patent/US10393162B2/en active Active
- 2016-03-18 WO PCT/JP2016/058805 patent/WO2016148292A1/ja not_active Ceased
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| JPS5747588A (en) * | 1980-09-03 | 1982-03-18 | Hitachi Ltd | Electron beam welding method |
| JP2010056196A (ja) * | 2008-08-27 | 2010-03-11 | Nippon Light Metal Co Ltd | 液冷ジャケットおよびその製造方法 |
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| Publication number | Publication date |
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| CN107405721B (zh) | 2019-12-06 |
| JPWO2016148292A1 (ja) | 2017-09-28 |
| US20170370389A1 (en) | 2017-12-28 |
| CN107405721A (zh) | 2017-11-28 |
| JP6354899B2 (ja) | 2018-07-11 |
| US10393162B2 (en) | 2019-08-27 |
| DE112016000212T5 (de) | 2017-09-28 |
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