WO2012077405A1 - Procédé de soudage de soupape de moteur creuse - Google Patents

Procédé de soudage de soupape de moteur creuse Download PDF

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Publication number
WO2012077405A1
WO2012077405A1 PCT/JP2011/073478 JP2011073478W WO2012077405A1 WO 2012077405 A1 WO2012077405 A1 WO 2012077405A1 JP 2011073478 W JP2011073478 W JP 2011073478W WO 2012077405 A1 WO2012077405 A1 WO 2012077405A1
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WO
WIPO (PCT)
Prior art keywords
hollow
shaft
sealing member
welding
end sealing
Prior art date
Application number
PCT/JP2011/073478
Other languages
English (en)
Japanese (ja)
Inventor
藤谷　泰之
宏和 森井
健一郎 平尾
坪田　秀峰
Original Assignee
三菱重工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱重工業株式会社 filed Critical 三菱重工業株式会社
Publication of WO2012077405A1 publication Critical patent/WO2012077405A1/fr

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Classifications

    • 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
    • B23K15/06—Electron-beam welding or cutting within a vacuum chamber
    • 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
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
    • B23K26/0648—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising lenses
    • 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
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/073—Shaping the laser spot
    • B23K26/0734—Shaping the laser spot into an annular shape
    • 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
    • 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
    • B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
    • B23K33/004—Filling of continuous seams
    • B23K33/006—Filling of continuous seams for cylindrical workpieces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/12—Cooling of valves
    • F01L3/14—Cooling of valves by means of a liquid or solid coolant, e.g. sodium, in a closed chamber in a valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/20—Shapes or constructions of valve members, not provided for in preceding subgroups of this group
    • 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
    • B23K2101/006—Vehicles
    • 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
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2303/00—Manufacturing of components used in valve arrangements

Definitions

  • the present invention relates to a method for welding a hollow engine valve capable of integrally joining a hollow shaft-shaped valve umbrella member and a shaft-shaped shaft end sealing member in an engine valve manufacturing process.
  • the present invention solves the above-described problems, and an object thereof is to provide a method for welding a hollow engine valve that can improve the quality of a welded portion.
  • a method for welding a hollow engine valve according to a first aspect of the present invention for solving the above-described problem is as follows.
  • a welding method for a hollow engine valve obtained by welding a hollow shaft-shaped hollow shaft member and a shaft-shaped shaft end sealing member to each other,
  • the welded portion formed by abutting the end surface of the hollow shaft member and the end surface of the shaft end sealing member is point-symmetric with respect to the axial center of the hollow shaft member and the shaft end sealing member 2
  • Simultaneously irradiate an electron beam or laser light from the direction
  • the hollow shaft member and the shaft end sealing member with which the end faces are butted together, and an electron beam or a laser beam are relatively rotated around the axis of the hollow shaft member and the shaft end sealing member,
  • the hollow shaft member and the shaft end sealing member are welded.
  • a method for welding a hollow engine valve according to a second aspect of the present invention for solving the above-described problem is as follows.
  • a welding method for a hollow engine valve obtained by welding a hollow shaft-shaped hollow shaft member and a shaft-shaped shaft end sealing member to each other, Coaxial with the axial center of the hollow shaft member and the shaft end sealing member over the entire circumferential direction of the welded portion formed by abutting the end surface of the hollow shaft member and the end surface of the shaft end sealing member.
  • Irradiate a laser beam condensed in a ring shape like The hollow shaft member and the shaft end sealing member are welded.
  • a method for welding a hollow engine valve according to a third aspect of the present invention for solving the above problem is as follows.
  • a fitting portion that fits into a hollow hole of the hollow shaft member is formed on an end surface of the shaft end sealing member.
  • a method for welding a hollow engine valve according to a fourth aspect of the present invention for solving the above-described problem is as follows. While the end surface of the hollow shaft member is an inclined surface that is inclined so that its outer diameter gradually decreases toward the tip, The end surface of the shaft end sealing member is an inclined surface that is inclined so that its inner diameter gradually increases toward the tip.
  • a hollow engine valve welding method for solving the above-described problems is as follows.
  • the hollow shaft member is cooled by a cooling means during welding.
  • a hollow engine valve welding method for solving the above-described problem is as follows.
  • the shaft end sealing member is The outer diameter is formed so as to gradually decrease toward the tip, and can be in line contact with the opening peripheral edge of the hollow hole in the hollow shaft member, and can be inserted into the hollow hole.
  • the outer peripheral inclined portion, the fitting portion, and the hollow are formed by inserting the outer peripheral inclined portion into the hollow hole while making line contact with the peripheral edge portion of the opening and fitting the fitting portion into the hollow hole.
  • An annular gap is formed between the holes, While the outer peripheral inclined portion and the hollow hole are in pressure contact, the gap generated by the pressure contact is filled in the gap.
  • a hollow engine valve welding method for solving the above-described problem is In a welding method for a hollow engine valve obtained by welding a hollow shaft-shaped hollow shaft member and a shaft-shaped shaft end sealing member to each other,
  • the shaft end sealing member is An end surface in contact with an end surface of the hollow shaft member;
  • Provided at the tip of the protrusion and includes a fitting portion that can be fitted into the hollow hole, The end face of the hollow shaft member and the end face of the shaft end sealing member are abutted, the protrusion is inserted into the hollow hole, and the fitting portion is fitted into the hollow hole, whereby the protrusion And forming an annular gap between the fitting portion and the hollow hole, While the end surface of the hollow shaft member and the end surface of the shaft end sealing member are in pressure contact with each other, the flash generated by the pressure
  • the method for welding hollow engine valves according to the present invention it is possible to suppress the collapse, misalignment, and thermal deformation at the welded portion between the hollow shaft-shaped hollow shaft member and the shaft-shaped shaft end sealing member. As a result, the quality of the welded portion can be improved.
  • a hollow engine valve 1 manufactured using a welding method according to the present invention is used as an intake valve or an exhaust valve in an engine such as a vehicle, and has a hollow shaft shape.
  • the valve head member (hollow shaft member) 11 and the shaft-shaped (solid-shaped) shaft end sealing member 12 are configured.
  • the valve head member 11 and the shaft end sealing member 12 are welded between the shaft ends of each other.
  • valve head member 11 has an umbrella-shaped valve head portion 11a and a hollow shaft-shaped hollow shaft portion (hollow shaft member) 11b. Inside the valve head member 11, a hollow hole 11c is formed. It is formed so that the shape of the said valve head part 11a and the hollow shaft part 11b may be followed over the valve head part 11a and the hollow shaft part 11b. And the metal sodium N for refrigerant
  • FIGS. 2A and 2B show a welding method according to the first embodiment of the present invention, in which the valve head member 11 and the shaft end sealing member 12 are joined by an electron beam welding method. The case where it welds using is demonstrated.
  • the irradiation direction (welding direction) of the electron beam E is two opposite directions that are point contrasts with respect to the shaft centers of the valve head member 11 and the shaft end sealing member 12. That is, the irradiation position (welding position) with respect to the welded portion is set to a position where the phase is shifted by 180 ° in the circumferential direction of the valve head member 11 and the shaft end sealing member 12.
  • the two electron beams E are irradiated as a set to the welded portion between the valve head member 11 and the shaft end sealing member 12.
  • a plurality of sets of electron beams E may be irradiated (FIG. 2 ( a)).
  • the electron beam welding method is employed, the same effect can be obtained even when the laser welding method is employed.
  • FIGS. 3A, 3B, and 4 show a welding method according to a second embodiment of the present invention, in which the valve head member 11 and the shaft end sealing member 12 are joined together. The case where it welds using a laser welding method is demonstrated.
  • the end surface 21 of the hollow shaft portion 11b in the valve head member 11 and the end surface 31 of the shaft end sealing member 12 are brought into contact with each other.
  • the laser beam L is applied to the welded portion (welded joint portion) formed by abutting the end surface 21 and the end surface 31 through the ring-shaped reflection mirror 45, and the entire circumferential direction is welded simultaneously. To do.
  • the laser welding apparatus 40 includes a laser oscillator 41 that oscillates a laser beam L, an optical fiber 42 connected to the laser oscillator 41, a reflection mirror 43 provided to face the optical fiber 42, and the reflection mirror.
  • An imaging lens group 44 provided below 43 and a ring-shaped reflection mirror 45 provided coaxially therewith below the imaging lens group 44 are provided.
  • valve head member 11 and the shaft end sealing member 12 with which the end faces 21 and 31 are abutted with each other are arranged inside the ring-shaped reflection mirror 45 so as to be coaxial with the reflection mirror 45.
  • the laser beam L is irradiated to the welded portion.
  • the valve head member 11 and the shaft end sealing member 12 are faced to each other and are installed below the laser welding device 40 so as to be coaxial with the laser welding device 40 and driven by the laser oscillator 41.
  • the laser light L is output from the optical fiber 42, deflected downward by the reflection mirror 43, and then input to the imaging lens group 44.
  • the laser light L input to the imaging lens group 44 is condensed in a ring shape by the imaging lens group 44 so as to be coaxial with the installed valve head member 11 and the shaft end sealing member 12. Is done.
  • the laser beam L condensed in a ring shape is deflected inward by the reflection mirror 45 and irradiates the entire circumferential direction of the welded portion between the valve head member 11 and the shaft end sealing member 12.
  • the laser beam condensed in a ring shape so as to be coaxial with the axis of the valve head member 11 and the shaft end sealing member 12 with respect to the welded portion between the valve head member 11 and the shaft end sealing member 12.
  • the irradiation (welding) area in a welding part can be made small by irradiating with the laser beam L, a thermal deformation (welding distortion) can also be suppressed.
  • the quality of the welding part of the valve head member 11 and the shaft end sealing member 12 can be improved, and as a result, the high quality hollow engine valve 1 can be manufactured.
  • the groove shape (welded portion) between the valve head member 11 and the shaft end sealing member 12 is abutted against the end surfaces 21 and 31 that are one plane.
  • a groove shape as shown in FIGS. 5A and 5B may be used.
  • a columnar fitting portion 32b that fits into the hollow hole 11c of the valve head member 11 is formed on the end surface 32a of the shaft end sealing member 12. Then, when the end surface 21 of the hollow shaft portion 11b in the valve umbrella member 11 and the end surface 32a of the shaft end sealing member 12 are abutted, the fitting portion 32b is fitted into the hollow hole 11c.
  • tip is formed in the edge part of the hollow shaft 11b of the valve head member 11.
  • an inner peripheral inclined surface 33 is formed at the end of the shaft end sealing member 12 so that its inner diameter gradually increases as it goes toward the tip. Then, when the hollow shaft portion 11b of the valve umbrella member 11 and the shaft end sealing member 12 are brought into contact with each other, the inclined surfaces 23 and 33 are brought into close contact with each other.
  • the valve umbrella member 11 is hollow. Therefore, a difference in heat capacity is likely to occur between them. Therefore, the valve head member 11 having a small heat capacity may be cooled using liquid, gas, or the like. By using such a cooling means to cool the valve head member 11 during welding, the difference in heat capacity between the valve head member 11 and the shaft end sealing member 12 can be reduced. The quality can be stabilized. Moreover, since the internal pressure in the hollow hole 11c can be suppressed by cooling the valve umbrella member 11, the blowout from the welding part of the metal sodium N to seal can be prevented.
  • welding may be performed in a vacuum state or a reduced pressure state.
  • FIGS. 6A and 6B show a welding method according to a third embodiment of the present invention, in which the valve head member 11 and the shaft end sealing member 12 are joined by resistance welding. The case where it welds using (pressure welding method) is demonstrated.
  • an outer peripheral inclined portion 34a and a fitting portion 34b are successively formed at the end of the shaft end sealing member 12 in order toward the tip.
  • the outer peripheral inclined portion 34a is formed such that its outer diameter gradually decreases toward the tip, can be in line contact with the opening peripheral edge portion 22 of the hollow hole 11c, and can be inserted into the hollow hole 11c.
  • the fitting portion 34b is formed continuously from the tip of the outer peripheral inclined portion 34a and can be fitted to the hollow hole 11c.
  • the opening peripheral part 22 is a corner
  • the outer peripheral inclined portion 34a is brought into line contact with the opening peripheral edge portion 22 and inserted into the hollow hole 11c, and the fitting portion 34b is inserted into the hollow hole 11c.
  • the welded portion can be prevented from being tilted or displaced.
  • the opening peripheral edge portion 22 and the outer peripheral inclined portion 34a are in line contact, heat generation due to contact electric resistance is likely to occur, and the quality of the welded portion can be made uniform.
  • the quality of the welding part of the valve head member 11 and the shaft end sealing member 12 can be improved, and as a result, the high quality hollow engine valve 1 can be manufactured. Furthermore, by forming the beam receiving portion 34c, it is possible to prevent the inner beam generated by resistance welding from falling into the hollow hole 11c.
  • the groove shape (welded portion) between the valve head member 11 and the shaft end sealing member 12 is formed by line contact and fitting between the butted members.
  • a groove shape as shown in FIGS. 7A and 7B may be used.
  • the outer peripheral inclination part 35a and the fitting part 35b are successively formed in the end part of the axial end sealing member 12 toward the front-end
  • the outer peripheral inclined portion 35a is formed so that its outer diameter gradually decreases toward the tip, and is opposed to the end surface 21 of the hollow shaft portion 11b.
  • the fitting portion 35b is formed continuously from the tip of the outer peripheral inclined portion 35a and can be fitted to the hollow hole 11c.
  • FIGS. 8A and 8B show a welding method according to a fourth embodiment of the present invention, in which the valve head member 11 and the shaft end sealing member 12 are friction-welded. The case of welding using the (pressure welding method) is described.
  • a protruding portion 36b and a fitting portion 36c are successively formed toward the tip.
  • the protrusion 36b is formed at the center of the end surface 36a so that its outer diameter gradually decreases toward the tip, and can be inserted into the hollow hole 11c.
  • the fitting portion 36c is formed continuously from the tip of the protrusion 36b and can be fitted to the hollow hole 11c.
  • the end face 21 of the valve head member 11 and the end face 36a of the shaft end sealing member 12 are abutted, the protrusion 36b is inserted into the hollow hole 11c, and the fitting part 36c is fitted into the hollow hole 11c.
  • the beam receiving portion 36d By forming the beam receiving portion 36d and performing friction welding on the welded portion thus obtained, the welded portion can be prevented from falling or being displaced. Thereby, the quality of the welding part of the valve head member 11 and the shaft end sealing member 12 can be improved, and as a result, the high quality hollow engine valve 1 can be manufactured. Further, by forming the beam receiving portion 36d, it is possible to prevent the inner beam generated by friction welding from dropping into the hollow hole 11c.
  • the groove shape (welded portion) between the valve head member 11 and the shaft end sealing member 12 is composed of surface contact and fitting between the butted members.
  • a groove shape as shown in FIG. 9 may be used.
  • the present invention can be applied to a welding method for a hollow engine valve capable of improving productivity.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Laser Beam Processing (AREA)
  • Welding Or Cutting Using Electron Beams (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

L'invention porte sur un procédé de soudage de soupape de moteur creuse qui peut améliorer la qualité d'une partie de soudure. Le procédé de soudage de soupape de moteur creuse peut obtenir une soupape de moteur creuse au moyen d'un élément d'ombrelle de soupape (11) ayant une forme d'arbre creux avec une forme d'ombrelle à une extrémité de celui-ci et d'un élément d'étanchéité d'extrémité d'arbre (12) ayant une forme d'arbre qui sont soudés entre eux, des faisceaux électroniques (E) étant rayonnées, à partir de deux positions qui sont de symétrie ponctuelle par rapport à l'axe de l'élément d'ombrelle de soupape (11) et de l'élément d'étanchéité d'extrémité d'arbre (12) sur une partie de soudure formée par le fait d'amener une surface d'extrémité (21) d'une partie d'arbre creux (11b) de l'élément d'ombrelle de soupape (11) en contact avec une surface d'extrémité (31) de l'élément d'étanchéité d'extrémité d'arbre (12), et l'élément d'ombrelle de soupape (11) et l'élément d'étanchéité d'extrémité d'arbre (12) qui ont été amenés en contact entre eux sont mis en rotation autour dudit axe. En résultat, l'élément d'ombrelle de soupape (11) et l'élément d'étanchéité d'extrémité d'arbre (12) sont soudés l'un à l'autre.
PCT/JP2011/073478 2010-12-08 2011-10-13 Procédé de soudage de soupape de moteur creuse WO2012077405A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010-273217 2010-12-08
JP2010273217A JP2012122388A (ja) 2010-12-08 2010-12-08 中空エンジンバルブの溶接方法

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WO2012077405A1 true WO2012077405A1 (fr) 2012-06-14

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106180969A (zh) * 2016-08-02 2016-12-07 中国电子科技集团公司第三十八研究所 搅拌摩擦焊隧道缺陷的电子束补焊方法
WO2018149610A1 (fr) * 2016-02-17 2018-08-23 Mahle International Gmbh Moteur à combustion interne comprenant au moins une soupape à tête creuse
EP4147813A1 (fr) * 2021-09-08 2023-03-15 Purem GmbH Composant à souder et procédé de soudage d'un tel composant à souder à un composant

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JP6248252B2 (ja) * 2013-03-11 2017-12-20 国立大学法人 熊本大学 結晶金属体と金属ガラス体の接合体及びその製造方法
JP6579983B2 (ja) * 2016-03-18 2019-09-25 日立オートモティブシステムズ株式会社 高エネルギービーム溶接品質判定方法、その判定方法を利用した品質判定装置、その判定方法を利用した溶接管理システム
CN110605478B (zh) * 2018-06-14 2022-03-15 大族激光科技产业集团股份有限公司 激光对称焊接设备和激光对称焊接方法

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JPS61135491A (ja) * 1984-12-06 1986-06-23 Nippon Steel Corp 電子ビ−ム溶接方法
JPS61216875A (ja) * 1985-03-20 1986-09-26 Mitsubishi Heavy Ind Ltd きのこ状弁の製造方法
JPH03258469A (ja) * 1990-03-07 1991-11-18 Ishikawajima Harima Heavy Ind Co Ltd 電子ビームによる板材の溶接方法
JPH03258903A (ja) * 1990-03-07 1991-11-19 Hino Motors Ltd 中空バルブおよびそれの製造方法
JPH11109079A (ja) * 1997-10-07 1999-04-23 Mitsubishi Heavy Ind Ltd 試験片再生方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61135491A (ja) * 1984-12-06 1986-06-23 Nippon Steel Corp 電子ビ−ム溶接方法
JPS61216875A (ja) * 1985-03-20 1986-09-26 Mitsubishi Heavy Ind Ltd きのこ状弁の製造方法
JPH03258469A (ja) * 1990-03-07 1991-11-18 Ishikawajima Harima Heavy Ind Co Ltd 電子ビームによる板材の溶接方法
JPH03258903A (ja) * 1990-03-07 1991-11-19 Hino Motors Ltd 中空バルブおよびそれの製造方法
JPH11109079A (ja) * 1997-10-07 1999-04-23 Mitsubishi Heavy Ind Ltd 試験片再生方法

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018149610A1 (fr) * 2016-02-17 2018-08-23 Mahle International Gmbh Moteur à combustion interne comprenant au moins une soupape à tête creuse
CN110114559A (zh) * 2016-02-17 2019-08-09 马勒国际有限公司 具有至少一个中空顶气门的内燃机
CN110114559B (zh) * 2016-02-17 2022-11-15 马勒国际有限公司 具有至少一个中空顶气门的内燃机
US11828207B2 (en) 2016-02-17 2023-11-28 Mahle International Gmbh Internal combustion engine with at least one hollow-head valve
CN106180969A (zh) * 2016-08-02 2016-12-07 中国电子科技集团公司第三十八研究所 搅拌摩擦焊隧道缺陷的电子束补焊方法
EP4147813A1 (fr) * 2021-09-08 2023-03-15 Purem GmbH Composant à souder et procédé de soudage d'un tel composant à souder à un composant

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