WO2022024987A1 - エレメント、摩擦エレメント接合方法および摩擦エレメント接合継手の製造方法 - Google Patents

エレメント、摩擦エレメント接合方法および摩擦エレメント接合継手の製造方法 Download PDF

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Publication number
WO2022024987A1
WO2022024987A1 PCT/JP2021/027532 JP2021027532W WO2022024987A1 WO 2022024987 A1 WO2022024987 A1 WO 2022024987A1 JP 2021027532 W JP2021027532 W JP 2021027532W WO 2022024987 A1 WO2022024987 A1 WO 2022024987A1
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WIPO (PCT)
Prior art keywords
plate
cone
mandrel
friction element
plate assembly
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2021/027532
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English (en)
French (fr)
Japanese (ja)
Inventor
尚晃 宗村
広志 松田
善明 村上
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Steel Corp
Original Assignee
JFE Steel Corp
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 JFE Steel Corp filed Critical JFE Steel Corp
Priority to EP21849452.4A priority Critical patent/EP4155020A4/en
Priority to KR1020237002954A priority patent/KR102837187B1/ko
Priority to JP2021561017A priority patent/JP7173376B2/ja
Priority to US18/018,140 priority patent/US12479042B2/en
Priority to CN202180059536.9A priority patent/CN116157222A/zh
Priority to MX2023001180A priority patent/MX2023001180A/es
Publication of WO2022024987A1 publication Critical patent/WO2022024987A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
    • B23K20/1245—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding characterised by the apparatus
    • B23K20/1255—Tools therefor, e.g. characterised by the shape of the probe
    • 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
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
    • B23K20/1245—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding characterised by the apparatus
    • 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
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
    • B23K20/127—Friction stir welding involving a mechanical connection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/02—Riveting procedures
    • B21J15/027—Setting rivets by friction heating
    • 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
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
    • B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
    • B23K35/0288—Welding studs
    • 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
    • B23K2101/18—Sheet panels
    • 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
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/02—Iron or ferrous alloys
    • B23K2103/04—Steel or steel alloys
    • 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
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/18—Dissimilar materials

Definitions

  • the present invention relates to a friction element welding called FEW (Friction Element Welding). Specifically, an element for superimposing two or more metal plates such as steel plates (for example, ordinary steel plates, high tension steel plates, etc.) and light metal plates (for example, aluminum plates, aluminum alloy plates, copper plates, etc.) for friction element joining, and It relates to a friction element joining method using the element and a manufacturing method of a friction element joining joint.
  • FEW Frition Element Welding
  • a technology for adopting a light metal for example, aluminum alloy, copper plate, etc.
  • a technique for firmly joining a steel frame forming the skeleton of the car body and a light metal material is required.
  • Non-Patent Document 1 discloses a technique for joining a friction element using a metal joining part (hereinafter referred to as an element).
  • an element a metal joining part
  • metal plates are stacked to form a plate assembly, and while rotating the element at high speed, pressure is applied to enter the plate assembly (hereinafter referred to as press-fitting) to join the metal plates to each other.
  • Patent Document 1 discloses an element that can be suitably used in friction element joining.
  • the element is plastic by being supported by the action of the force applied in the joining process by making the mandrel part a polygon with multiple rounded corner regions and a non-circular outer shape. It promotes the discharge of the upper plate of the deformed plate set.
  • the elements disclosed in Patent Document 2 are a cylindrical mandrel, a circular collar overhanging around the upper end of the mandrel, and a conical mandrel protruding from the lower end surface of the mandrel. It is equipped with a pin. According to the element of Patent Document 2, when the element is press-fitted into the plate assembly, the apex of the pin first abuts on the plate assembly and is held at that position while rotating the element at high speed to generate frictional heat. It can be generated by concentrating on the position.
  • the metal plate arranged on the lowermost side of the metal plate (hereinafter referred to as the lower plate) is a steel plate, and the metal plate arranged on the uppermost side (that is, the side where the pin of the element abuts) (hereinafter referred to as the upper plate). ) Is a light metal plate, and the intermediate metal plate sandwiched between the lower plate and the upper plate is also a light metal plate, which is an effective technique.
  • the present invention solves the problems of the conventional technique, and is a plate assembly consisting of two steel plates in which a steel plate is arranged as a lower plate and a steel plate is also arranged on the upper plate, or a lower plate (that is, a steel plate) and an upper plate.
  • a plate assembly consisting of two steel plates in which a steel plate is arranged as a lower plate and a steel plate is also arranged on the upper plate, or a lower plate (that is, a steel plate) and an upper plate.
  • an element for performing friction element joining to a plate set consisting of three or more metal plates sandwiching one or more metal plates (that is, a steel plate or a light metal plate) between (that is, a steel plate).
  • a steel plate is arranged as a lower plate, and a plate set consisting of two metal plates in which a light metal plate is arranged on the upper plate, or between a lower plate (that is, a steel plate) and an upper plate (that is, a light metal plate).
  • a plate set consisting of two metal plates in which a light metal plate is arranged on the upper plate, or between a lower plate (that is, a steel plate) and an upper plate (that is, a light metal plate).
  • elements that can be applied without hindrance to friction element joining of a plate set consisting of three or more metal plates sandwiching one or more steel plates, a friction element joining method using the elements, and a manufacturing method of a friction element joining joint. The purpose is to do.
  • the upper plate of a plate consisting of two steel plates is the steel plate on which the mandrel of the element comes into contact before being press-fitted into the plate.
  • the upper plate is a hard steel plate, and in order to join the friction element, it is necessary to rotate the element at high speed without changing the position where the mandrel comes into contact with the upper plate, and concentrate the frictional heat at a predetermined position. There is. Therefore, the present inventor has conducted various experiments in which the mandrel is brought into contact with a predetermined position on the upper plate and held at that position while rotating the element at high speed.
  • the element continues to rotate at high speed (that is, the mandrel rotates at high speed) without changing the predetermined position, so that frictional heat is concentrated and generated, and the position is softened and plastic flow is likely to occur. .. Therefore, if the softened and fluid metal (that is, the metal of the plastically deformed upper plate) is smoothly discharged, the mandrel can be made to enter the upper plate and further penetrate.
  • a cone with the apex angle (hereinafter referred to as "apex angle") set in a suitable range is placed on the lower end surface of the mandrel. It was found that if they were arranged, a plate set consisting of two steel plates could be joined by friction element joining.
  • the element of the present invention When the element of the present invention is applied to a plate assembly consisting of two metal plates in which a steel plate is arranged as a lower plate and a light metal plate is arranged on the upper plate, the upper plate is soft. Therefore, the cone enters the upper plate while holding its central axis in a predetermined position. Further, frictional heat is concentrated and generated by the mandrel, and the position is softened to easily generate plastic flow. Moreover, since the flowable metal (hereinafter referred to as "fluid metal”) is smoothly extruded by the conical body arranged on the lower end surface of the mandrel, it is possible to suppress the occurrence of bonding failure. And this effect is greatly improved by using two cones having different apex angles together.
  • the element of the present invention is an element for joining the friction element of the plate assembly by press-fitting the two or more metal plates into the plate assembly while rotating them, and the element is a plate assembly. It has a cylindrical mandrel that enters the mandrel, a disc-shaped collar disposed at the upper end of the mandrel, and a first cone extending to the lower end surface of the mandrel. The diameter of the collar is larger than the diameter of the mandrel, and the outer circumference of the collar is inclined or curved downward.
  • the central axis of the first cone coincides with the central axis of the mandrel, and Further, the second cone is disposed in contact with the lower side of the first cone, the bottom surface of the second cone has a smaller diameter than the bottom surface of the first cone, and the central axis of the second cone is. Aligns with the central axis of the mandrel, The apex angle ⁇ (°) of the second cone is ⁇ ⁇ with respect to the apex angle ⁇ (°) of the first cone. It satisfies the relationship of.
  • the element of the present invention has an apex angle ⁇ (°) of the first cone. 140 ⁇ ⁇ ⁇ 180 And the apex angle ⁇ (°) of the second cone 90 ⁇ ⁇ ⁇ 140 It is preferable to satisfy.
  • the distance L (mm) in the direction parallel to the central axis of the mandrel from the lowermost end of the outer peripheral portion of the collar to the apex of the second cone is the total thickness T TOTAL (mm) of the plate assembly and the lower plate of the plate assembly.
  • T BOTTOM (mm) (T TOTAL -T BOTTOM ) + 0.02mm ⁇ L ⁇ (T TOTAL -T BOTTOM ) + 4mm It is preferable to satisfy the relationship of.
  • the plate assembly to which the present invention is applied is preferably a plate assembly in which the lower plate is a steel plate and the upper plate is a light metal, or a plate assembly in which the lower plate and the upper plate are steel plates.
  • the outer surfaces of the first cone and the second cone have a coating film made of a wear-resistant material.
  • the friction element joining method of the present invention is a friction element joining method in which a plate assembly is joined by press-fitting the element into a plate assembly in which two or more metal plates are stacked while rotating the element, and friction using the above-mentioned element is used. This is an element joining method.
  • the method for manufacturing a friction element joint of the present invention is a method for manufacturing a friction element joint in which a plate is joined by press-fitting the element into a plate in which two or more metal plates are stacked while rotating the element. It is a method of manufacturing a friction element joint joint using the above-mentioned element.
  • Friction element bonding it is possible not only to perform friction element bonding to a plate set in which two steel plates are overlapped (that is, a plate set in which both the lower plate and the upper plate are steel plates), but also three or more sheets. Friction element bonding can also be applied to a plate assembly in which steel plates are stacked, or a plate assembly in which two steel plates are used as a lower plate and an upper plate and one or more light metal plates are sandwiched between them. It works.
  • a steel plate is arranged as a lower plate, and a plate set consisting of two metal plates in which a light metal plate is arranged on the upper plate, or between a lower plate (that is, a steel plate) and an upper plate (that is, a light metal plate). It can be stably applied to the friction element joining of a plate set consisting of three or more metal plates sandwiching one or more steel plates without any trouble, and the effect of suppressing the occurrence of joining defects can be obtained.
  • FIG. 1 is a cross-sectional view schematically showing an example of the element of the present invention.
  • 2 (a) and 2 (b) are cross-sectional views schematically showing an example of a plate assembly joined by using the element shown in FIG. 1, and FIG. 2 (a) shows two metal plates stacked on top of each other.
  • FIG. 2B is a plate assembly in which three metal plates are overlapped.
  • 3A and 3B are cross-sectional views schematically showing an example of joining plates using the element shown in FIG. 1, and FIG. 3A is an example before the element is press-fitted. , FIG. 3B is an example after the element is press-fitted.
  • FIG. 1 is a cross-sectional view schematically showing an example of the element of the present invention.
  • the element 1 of the present invention has a cylindrical mandrel 2 that enters the plate assembly when joining the friction element of the plate assembly, and one end of the mandrel 2 (hereinafter, "upper end portion"). It has a disk-shaped collar 3 disposed in (referred to as) and a conical first cone 4 extending to the other end surface (hereinafter referred to as “lower end surface”) of the mandrel 2.
  • the outer peripheral portion of the collar 3 is arranged so as to project from the upper end portion of the mandrel 2 to the periphery. Moreover, the outer peripheral portion of the collar 3 is formed so as to be inclined or curved downward.
  • the first cone 4 extends to the lower end surface of the mandrel 2, and the central axis of the first cone 4 (that is, the center of the bottom surface) coincides with the central axis of the mandrel 2. Therefore, the lower end surface of the mandrel 2 is not exposed around the bottom surface of the first cone 4. That is, the diameter of the bottom surface of the first cone 4 and the diameter of the lower end surface of the mandrel 2 are the same.
  • the second cone 5 is disposed in contact with the lower side of the first cone 4. Moreover, the central axis of the second cone 5 (that is, the center of the bottom surface) coincides with the central axis of the first cone 4.
  • the bottom surface of the second cone 5 has a smaller diameter than the bottom surface of the first cone 4. That is, the diameter D2 (mm) of the bottom surface of the second cone 5 is D2 ⁇ D1 with respect to the diameter D1 (mm) of the bottom surface of the first cone 4. It is necessary to satisfy the relationship of. That is, the inclined side surface of the first cone 4 is exposed around the bottom surface of the second cone 5.
  • the diameter D2 of the bottom surface of the second cone 5 is preferably (D1 ⁇ 90%) (mm) or less. More preferably, it is (D1 ⁇ 50%) (mm) or less.
  • the lower limit of the diameter D2 of the bottom surface of the second cone 5 is not particularly specified because the above-mentioned discharge effect of the fluid metal can be obtained.
  • the diameter D2 of the bottom surface of the second cone 5 is preferably (D1 ⁇ 10%) (mm) or more, and more preferably (D1 ⁇ 20%) (mm) or more. do.
  • the apex angle ⁇ (°) of the second cone 5 is ⁇ ⁇ with respect to the apex angle ⁇ (°) of the first cone 4. It is necessary to satisfy the relationship of. By satisfying this relationship, it becomes possible to stably hold the central axis of the second cone 5 in a predetermined position when the element 1 is press-fitted into the plate assembly, and the extruded fluid metal is smoothly discharged. It becomes possible to do.
  • the apex angle ⁇ (°) of the first cone 4 is 140 ⁇ ⁇ ⁇ 180 It is preferable to satisfy.
  • the apex angle ⁇ (°) of the second cone 5 is 90 ⁇ ⁇ ⁇ 140 It is preferable to satisfy.
  • friction element bonding can be efficiently performed by increasing the wear resistance of the first cone 4 and the second cone 5. Therefore, it is preferable to form a coating film made of a wear-resistant material on the outer surfaces of the first cone 4 and the second cone 5.
  • the wear-resistant material may have the above-mentioned effects and effects, and is not particularly specified.
  • a curing treatment such as WC, TiN, other ceramics, a heat-resistant film, and nitriding can be used.
  • FIG. 2A is a cross-sectional view of a plate set in which two metal plates are overlapped
  • FIG. 2B is a cross-sectional view of a plate set in which three metal plates are overlapped.
  • the plate assembly 6 shown in FIG. 2A is a plate assembly 6 in which two metal plates composed of an upper plate 7 and a lower plate 8 are overlapped.
  • the plate assembly 6 shown in FIG. 2B is a plate assembly 6 composed of a total of three metal plates in which one metal plate is sandwiched between the upper plate 7 and the lower plate 8.
  • the present invention can also be applied to a plate assembly (not shown) consisting of a total of four or more metal plates in which two or more metal plates are sandwiched between the upper plate 7 and the lower plate 8.
  • the mandrel 2 penetrates the upper plate 7 and further the lower plate. It is necessary to reach 8. Therefore, a suitable range of the distance L (mm) from the lowermost end of the outer peripheral portion of the collar 3 to the apex of the second cone 5 is defined as follows.
  • the distance L is a length in a direction parallel to the central axis of the mandrel 2.
  • the element 1 in which the distance L is set so as to satisfy the above conditions is used, the element 1 can be press-fitted from above the upper plate 7 in the friction element joining, and the second cone 5 can reach the lower plate 8. However, in the process of press-fitting the element 1, the first cone 4, the second cone 5, and the mandrel 2 are softened by frictional heat to cause plastic flow, and the fluid metal is discharged to the side surface side of the mandrel 2.
  • the distance L is (T TOTAL -T BOTTOM ) + 0.02mm ⁇ distance L ⁇ (T TOTAL -T BOTTOM ) + 4mm It is preferable to satisfy the relationship of.
  • the length added to (T TOTAL -T BOTTOM ) should be 0.02 mm or more as long as the bonding state of the interface can obtain satisfactory quality. It is preferably 0.2 mm or more, more preferably 0.5 mm or more. That is, the distance L is preferably ((T TOTAL -T BOTTOM ) + 0.2 mm) or more, and more preferably ((T TOTAL -T BOTTOM ) + 0.5 mm) or more. Further, the upper limit of the length further added to (T TOTAL -T BOTTOM ) is preferably 2 mm or less, more preferably 1.5 mm or less. That is, the distance L is preferably ((T TOTAL -T BOTTOM ) + 2 mm) or less, and more preferably ((T TOTAL -T BOTTOM ) + 1.5 mm) or less.
  • FIGS. 3 (a) and 3 (b) are cross-sectional views schematically showing an example (see FIG. 2 (a)) of joining a plate set 6 using the element 1, and FIG. 3 (a) is an element.
  • FIG. 3B shows an example after the element 1 is press-fitted into the plate assembly 6.
  • the press-fitting machine for press-fitting the element 1 into the plate assembly 6 is not shown.
  • the element 1 When the element 1 is press-fitted into the plate assembly 6, the element 1 rotating at high speed descends from above the upper plate 7, and the apex of the second cone 5 abuts on the upper plate 7 (see FIG. 3A). .. At this time, the central axes of the second cone 5 and the first cone 4 (that is, the central axis of the mandrel 2) are perpendicular to the upper plate 7. Then, as the element 1 continues to descend while rotating at high speed, the second cone 5 gradually enters the upper plate 7 from its apex, and the central axis of the second cone 5 is the rotation axis of the element 1. Is held in place as.
  • the fluid metal is discharged to the side surface side of the mandrel 2 along the side surface of the first cone 4.
  • the fluid metal extruded by the second cone 5 entering the plate assembly is discharged to the side surface side of the mandrel 2 along the inclined side surface of the first cone 4.
  • the upper plate 7 discharged in the process of press-fitting the mandrel 2 moves upward along the side surface of the mandrel 2.
  • the reason is that the lower plate 8 is arranged below the mandrel, which hinders the downward movement of the fluid metal.
  • the upper plate 7 discharged in this way moves to the free space above the mandrel, protrudes, and then is restrained by the outer peripheral portion of the collar 3, and as a result, is fixed to the element 1. That is, when the friction element bonding of the plate assembly 6 in which two metal plates are overlapped as shown in FIG. 2A is performed by using the element 1 of the present invention, the lower plate 8 and the mandrel 2 are formed.
  • the upper plate 7 is fixed to the mandrel 2 and the collar 3 by joining at the joint surface 9 (see FIG. 3 (b)).
  • the type of metal plate to be overlapped as the plate assembly 6 is not particularly limited, but if a steel plate is arranged as the lower plate 8, the lower plate 8 and the mandrel 2 are sufficient. Friction heat is generated, and the joint surface 9 is firmly joined.
  • a plate set consisting of two steel plates in which a steel plate is arranged as the lower plate 8 and the steel plate is also arranged on the upper plate 7, or between the lower plate 8 (that is, the steel plate) and the upper plate 7 (that is, the steel plate).
  • a plate assembly 6 composed of three or more metal plates sandwiching one or more metal plates (that is, a steel plate or a light metal plate) may be used.
  • a plate set consisting of two metal plates in which a steel plate is arranged as a lower plate 8 and a light metal plate is arranged on the upper plate 7, or a lower plate 8 (that is, a steel plate) and an upper plate 7 (that is, a light metal plate).
  • a plate set consisting of three or more metal plates with one or more steel plates sandwiched between them may be used.
  • the metal plate arranged on the lowermost side is a steel plate
  • the metal plate arranged on the uppermost side is a light metal plate
  • the intermediate metal plate sandwiched between the lower plate and the upper plate is also a light metal.
  • the element 1 of the present invention has two cones having different apex angles, and the fluid metal can be smoothly discharged.
  • the friction element of the plate assembly 6 in which the steel plate is arranged not only on the lower plate 8 but also on the upper plate 7 can be joined without any trouble, and a joint in which the plate assembly 6 is firmly joined can be obtained.
  • the elements of the present invention are press-fitted into a plate set in which two or more metal plates are overlapped while rotating to join the plate sets. To do. Further, in the method for manufacturing a friction element joint joint of the present invention using the above-mentioned element, the element of the present invention is press-fitted into a plate assembly in which two or more metal plates are overlapped while rotating to join the plate assembly. Do it. At this time, the joining conditions for joining the friction elements are appropriately adjusted so as to obtain the above effects. Preferred joining conditions are an element rotation speed (rpm) of 500 to 9000 rpm and a pressing force (kN) of 3 to 9 kN.
  • the friction element was joined to a total of two steel plates in which the upper plate and the lower plate were overlapped, as shown in FIG. 3 (a).
  • a total of three metal plates were stacked.
  • the combination of the upper plate and the lower plate and the combination of the three metal plates are as shown in Table 1.
  • Table 2 shows the rotation speed (rpm) and pressing force (kN) of the element when the friction element is joined to the plate assembly.
  • the shape of the element is as shown in Table 2.
  • the “heat-resistant film” mentioned as the coating film made of the wear-resistant material the "heat-resistant oxide film” shown in Table 2 was used here.
  • friction element joining was performed using an element having only one cone.
  • Friction element joint joints Two joints (hereinafter referred to as “friction element joint joints”) were manufactured for each joint number shown in Table 2. The appearance of the cross section of the joint was observed using one of the friction element joints, and the joint state of the plate assembly was evaluated. That is, the friction element joint joint (see FIG. 3 (b)) in which the mandrel penetrates the upper plate and is joined to the lower plate is evaluated as "good joint (symbol: ⁇ )", and the mandrel penetrates the upper plate. Friction element joints that were not joined and friction element joints that were not joined to the lower plate were evaluated as “poor joints (symbol: x)". The evaluation results are shown in Table 2.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Connection Of Plates (AREA)
PCT/JP2021/027532 2020-07-31 2021-07-26 エレメント、摩擦エレメント接合方法および摩擦エレメント接合継手の製造方法 Ceased WO2022024987A1 (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP21849452.4A EP4155020A4 (en) 2020-07-31 2021-07-26 ELEMENT, METHOD FOR WELDING FRICTION ELEMENT AND METHOD FOR MANUFACTURING FRICTION ELEMENT WELDING JOINT
KR1020237002954A KR102837187B1 (ko) 2020-07-31 2021-07-26 엘리먼트, 마찰 엘리먼트 접합 방법 및 마찰 엘리먼트 접합 조인트의 제조 방법
JP2021561017A JP7173376B2 (ja) 2020-07-31 2021-07-26 エレメント、摩擦エレメント接合方法および摩擦エレメント接合継手の製造方法
US18/018,140 US12479042B2 (en) 2020-07-31 2021-07-26 Element, friction element welding method, and method for producing friction element welded joint
CN202180059536.9A CN116157222A (zh) 2020-07-31 2021-07-26 元件、摩擦元件接合方法及摩擦元件接合接头的制造方法
MX2023001180A MX2023001180A (es) 2020-07-31 2021-07-26 Elemento, metodo de soldadura de elemento de friccion, y metodo para producir union de elemento de friccion soldado.

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