WO2005092558A1 - Méthode et dispositif de jonction de plaques métalliques par soudage par friction - Google Patents

Méthode et dispositif de jonction de plaques métalliques par soudage par friction Download PDF

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Publication number
WO2005092558A1
WO2005092558A1 PCT/JP2005/006428 JP2005006428W WO2005092558A1 WO 2005092558 A1 WO2005092558 A1 WO 2005092558A1 JP 2005006428 W JP2005006428 W JP 2005006428W WO 2005092558 A1 WO2005092558 A1 WO 2005092558A1
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Prior art keywords
plate
cylindrical
rotating member
joining
metal
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PCT/JP2005/006428
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English (en)
Japanese (ja)
Inventor
Kazuyoshi Katoh
Hiroshi Tokisue
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Nihon University
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Priority to JP2006511605A priority Critical patent/JP4592103B2/ja
Publication of WO2005092558A1 publication Critical patent/WO2005092558A1/fr

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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

Definitions

  • the present invention relates to a method and an apparatus for joining metal plates by friction welding.
  • Known welding methods using friction heat include friction welding and Friction Stir Welding (FSW). These are solid phase bonds.
  • FSW Friction Stir Welding
  • Friction welding has the advantage of overcoming the problems associated with conventional welding methods. For example, in arc welding, the weld is melted to form a forged structure, the base metal strength is reduced, the heat-affected zone around the weld is easily softened, and defects specific to welding, such as porosity and solidification cracking. Tends to occur. In addition, it has been pointed out that this bonding method causes an adhesive having low thermal conductivity to remain at the bonding portion, and inhibits heat dissipation.
  • a friction welding method As a method that does not have these problems, a friction welding method has been developed. For example, there is a method of manufacturing various parts by a friction welding method (Japanese Patent Application Laid-Open No. 11-245550). Also, when a metal connecting member is friction-welded to a thin metal plate-like surface, a friction welding method is used (Japanese Patent Application Laid-Open No. 2000-33459). In addition, when joining a pin-shaped metal joining member such as a rod material or a bolt to a metal plate-shaped base material, stud welding is used.
  • Friction welding is also used to join a wide range of similar and dissimilar materials. Materials such as steel can be welded to similar steel materials as well as aluminum, but it is considered difficult to weld steel to ceramic materials. If aluminum is interposed between the ceramic and the steel, friction welding between the steel and the ceramic becomes possible, Friction welding is used when manufacturing an electrophotographic roller (Japanese Patent Application Laid-Open No. 2001-74039).
  • the material to be joined is opposed to each other, and a cylindrical rotor (probe) made of a material harder than the material to be machined is inserted into the butted joint surface, and the material is rotated.
  • the friction stir welding method (FSW), which heats and melts the periphery of the opposed and contacted joining surfaces and joins them, has also been developed (Japanese Patent Application Laid-Open No. Hei 7-55090; -1804666, Japanese Patent Application Laid-Open No. 2001-13873). Fig. 7 explains this.
  • the joint surface 24 and its peripheral portion are characterized by being heated and melted by frictional heat generated between the joint surface 24 and the plate material by the rotation of the cylindrical rotor, thereby joining the plate materials.
  • This cylindrical rotor has a pin-shaped friction stir probe 21 having a diameter smaller than that of the cylindrical rotor main body 25, which is integrally protruded from the tip of the cylindrical rotor body 25.
  • One plate 22 and another plate 23 are in contact with the shoulder at the root of the pin, and the rotor body is rotated around its own axis and joined. Moving. The probe is moved along the joint surface on the opposite side of the plate material, and the generated frictional heat softens and plasticizes the portion. Due to the rotational movement of the shoulder 27, the friction between the shoulder 7 and the friction stirrer probe 21 and the plate forest (22, 23) causes the plate member 23 to have a cylindrical rotation. The portion where the compressive stress 31 generated by the rotation of the pin occurs appears in the compressive stress 30 generated by the pin and the plate 22.
  • this method is to join dissimilar materials with different deformation resistances.However, it is difficult to control the temperature peak position and temperature. When only a certain kind of dissimilar material is deformed, a certain amount of time may occur. As a result, stirring may not be performed sufficiently, and as a result, a sufficient joint may not be obtained.
  • the lower plate member 29 is stacked under the upper plate member 28, and the overlapped portion is joined.
  • a small-diameter pin-shaped friction stir probe 21 serving as a cylindrical rotor is coaxially and integrally protruded from the tip of a cylindrical rotary body 20. Then, with the shoulder 27 at the root of the probe 21 in contact with the upper plate member 28, the rotor body is rotated around its own axis. The tip of the probe is fed as close as possible to the joint surface between the upper plate 28 and the lower plate 29.
  • This method is similar to the above method in that the joining surface is directly friction-fused. The generated frictional heat softens and plasticizes the boundary portion and the portion of the upper plate that the probe cuts into.
  • the friction stir probe 21 is inserted until the upper plate material comes into contact with the shoulder portion of the probe to widen the stirring area and increase the bonding strength.
  • the portion to be friction-stirred is relatively wide, including the side of the probe, so that the melting range is also wide. There are many occurrences of Paris, and the joint surface becomes rough.
  • the power of the friction stir probe becomes unnecessarily large, the required power becomes large, and it can not be avoided that the equipment becomes large-scale. It has the problem of.
  • Fig. 9 shows that the friction stir probe is further penetrated into the lower plate to widen the stirring area and increase the bonding strength.
  • the friction-stirred portion 21 is melted over a relatively wide area including the side of the probe, so that burrs increase and the joint surface becomes rough.
  • the power of the friction stir probe becomes unnecessarily large, and the required power becomes large, and it is inevitable that the device becomes large-scale.
  • the present inventors have proposed a new friction welding method that is different from the conventional friction stir welding method or surface friction welding method. Specifically, the present inventors have stated that “a metal plate is overlapped and a rotating member is placed on the surface of one plate material. (JSME, January 8, 2001), in which the frictional heat generated by pressing and rotating friction is used to frictionally weld the superposed plates. , 9th Machine Materials and Material Processing Technology Lectures, pp. 61-62, Japanese Patent Application Laid-Open No. 2003-31440). This will be described with reference to FIG. The cylindrical rotating member 1 frictionally welds the surfaces of the upper plate 6 and the lower plate 7 which are superimposed on each other.
  • the rotating member is pressed against the surface of the plate, and a small pin-shaped friction stir probe is rotated when the plate contacts the shoulder, as in the friction stir welding method. Do not push deep into the upper plate.
  • the cylindrical rotating member 1 does not enter the joint surface 8 between the upper plate member and the lower plate member.
  • it is not merely a method of plastically flowing the surface of a sheet material as in the friction welding method.
  • a joint portion 14 is formed.
  • the features of this method are that compared to the friction stir welding, sufficient strength of the joint can be obtained, the spread of the joint is narrow, the phase of the joint is less disturbed, and the required power is small. . Also, the equipment is not large. And to friction stir welding! : Less burr compared to dagger. As described above, there are many advantages as compared with the conventional method.
  • An object of the present invention is to provide a novel method and apparatus which have a tensile shear strength without generating burrs in a joining method of a metal plate by friction welding.
  • FIG. 1 is a view showing the shape of a cylindrical rotating member of the present invention.
  • FIG. 2 is a view showing a joining method using the columnar rotating member of the present invention.
  • FIG. 3 is a diagram showing a conventional columnar rotating part.
  • FIG. 4 is a view showing a joining method using a conventional cylindrical rotating member.
  • FIG. 5 is a view showing the entirety of a joining device provided with a columnar rotating member of the present invention.
  • FIG. 6 is a diagram showing the entirety of a joining apparatus provided with another cylindrical rotating member of the present invention.
  • FIG. 7 is a view showing friction stir welding.
  • FIG. 8 is a view showing another friction stir welding.
  • FIG. 9 is a view showing another friction stir welding.
  • FIG. 10 is a diagram showing the shape of the cylindrical rotating member of the first embodiment.
  • FIG. 11 is a diagram showing the shape of a conventional cylindrical rotating member of Comparative Example 1.
  • FIG. 12 is a view showing a joined portion obtained in Example 1.
  • FIG. 13 is a view showing a joint obtained in Comparative Example 1.
  • FIG. 14 is a diagram showing a shape of a cylindrical rotating member of the second embodiment.
  • FIG. 15 is a diagram showing the shape of a conventional cylindrical rotating member of Comparative Example 2.
  • FIG. 16 is a view showing the shape of a conventional cylindrical rotating member of Comparative Example 2.
  • FIG. 17 is a view showing a joined portion obtained in Example 2.
  • FIG. 18 is a view showing a joint obtained in Comparative Example 2.
  • FIG. 19 is a view showing a joint obtained in Comparative Example 2.
  • FIG. 20 is a diagram showing a relationship between tensile shear strength due to friction welding and indentation depth.
  • FIG. 21 is a diagram showing a relationship between tensile shear strength due to friction welding and indentation depth.
  • FIG. 22 is a diagram showing a relationship between tensile shear strength due to friction welding and indentation depth.
  • the present inventors have studied the above problem.
  • the plates to be joined are superimposed in pressure contact with each other, and a rotating member made of a material having a hardness higher than that of the plate is brought into contact with the surface of one of the plates in a state where pressure is applied thereto. Plates superimposed by frictional heat generated by rotation In the method of joining, the melted state can be maintained around the portion directly below the rotating member, and as a result, the plate material superimposed on the rotating member can be joined.
  • the shape is a column or a semi-cone shorter than the diameter of the rotating member, and the cylindrical or semi-conical part is pressed into the one plate member.
  • the generation of burrs generated in a molten state is suppressed as compared with friction stir welding.
  • the burrs that are generated can be cut by the corners of the rotating member to form a joint surface without burrs, and the tensile shear strength of the joined thin plates should be maintained at a sufficient level. This And found that it is, it has led to the completion of the present invention.
  • the shape of the cylindrical rotating member is shown in FIG.
  • the cylindrical rotating member has a cylindrical portion 1 having a top portion formed in a flat shape, and further has a small concentric circle having a diameter smaller than that of the top portion 2 and a flat shape, and has at least a height.
  • the cylindrical or semi-conical shape 3 protruding below the thickness of the one plate material is coaxially superposed. In this figure, a cylindrical shape is shown.
  • Fig. 2 shows the joining method by friction welding.
  • the cylindrical rotating member While rotating, the cylindrical rotating member is pressed against the surface of one plate (upper plate) on which the metal plate to be joined is overlapped.
  • Burrs generated by the friction between the plate member and the portion of the cylindrical or semiconical shaped object as the cylindrical rotating member rotates are generated in the gap (clearance). Specifically, a portion of the columnar rotating member where the column or semiconical shaped part 3 is in contact with the plate material From around this point, burrs are formed along the column or semi-conical shape. The generated burrs are generated immediately below the cylindrical rotating member, and are cut by the corners of the rotating cylindrical rotating member. As a result, the burrs are cut, forming a smooth joint without burrs (Fig. 2).
  • the value of the gap is affected by the amount of generated burrs and cannot be determined in a unified manner. These values depend on operating conditions such as welding speed conditions. It can be appropriately determined according to the experiment.
  • the columnar rotating member may include a column portion having a top portion formed in a planar shape, and a diameter smaller than the top portion. It is a concentric circle, a planar shape, and the shape of a column or semi-cone that is raised at a height of at least the thickness of the one plate material or less and is coaxially superimposed.
  • the cylindrical or semi-conical shaped part is pressed into the one plate, and a gap exists between the top of the planar rotating member and the one plate. And joining the metal plates while cutting the paris generated from the gap by the tops and corners of the columnar rotating member formed in a planar shape.
  • the state in which the cylindrical or semi-conical shaped part is pressed into the one plate material is at least 2 to 10 to 5/10 of the thickness of one plate material.
  • the cylindrical rotating member has a cylindrical portion having a flat top and a concentric circle having a diameter smaller than that of the flat portion at the top, and has a flat shape.
  • a cylindrical or semi-conical shape protruding at a height equal to or less than the plate thickness of one of the plate materials is a shape coaxially superimposed, and the portion of the cylindrical or semi-conical shaped material is In this state, a gap is present between the top of the columnar rotating member formed in a plane and the one plate, and burrs generated from the gap are flat.
  • the state in which the cylindrical or semi-conical shaped part is pressed into the one plate is at least 3/10 or more and up to 5/10 of the thickness of one plate.
  • the plate material used for the joining of the present invention can be applied to various metal plates, similarly to those used in the conventional friction welding method. Examples of these include aluminum plates, aluminum alloy plates, copper plates, iron, stainless steel and other iron alloys, steel plates, titanium alloys, and magnesium alloys.
  • a metal plate combined with a metal plate to be bonded can be bonded to the same plate material as the metal to be bonded, or can be bonded to a plate material different from the metal to be bonded.
  • different metal plates for example, 505 2 aluminum alloy plate and 210 17 aluminum alloy plate, a combination of aluminum plate and aluminum alloy, aluminum alloy plate and stainless steel plate, aluminum alloy plate and SPCC And steel plates, aluminum and aluminum alloy plates and copper plates, aluminum alloy plates and tough pitch copper plates, aluminum plates and carbon steel plates, and steel plates with aluminum alloy, magnesium alloy or titanium alloy plate materials. With such a combination, it is possible to obtain a plate material having characteristics of a metal plate different from characteristics of a metal plate to be joined.
  • the present invention can be applied to three plate materials in which an upper plate made of an aluminum alloy plate is combined with a lower plate made of a copper plate and an aluminum alloy plate. It can be applied to the production of such a three-layer laminate.
  • These upper plates are thin plates.
  • the thickness of the upper plate is not particularly limited as long as the frictional heat required for joining generated by the rotation of the rotating member is transmitted to the joining surface, but is usually 3 mm or less. If applicable, it is fully applicable.
  • Regarding the lower limit Can be appropriately adopted as long as it can withstand the rotation of the rotating member without hindering the rotation.
  • the thickness of about 0.6 mm used industrially or a thickness of about 0.3 mm to 0.1 mm or less is sufficiently applicable.
  • the other plate material (lower plate material) is not limited to a thin plate as long as it can be joined, and a thicker member can be used as appropriate.
  • the rotating member to be brought into contact with the plate is made of a material having high hardness.
  • a rotating member of steel or stainless steel can be used.
  • materials made of wear-resistant materials such as tungsten, tungsten carbide, graphite, silicon carbide, and alumina are appropriately selected and used.
  • the joining can be performed regardless of which side of the plate material is brought into contact with the rotating member.
  • contacting a plate having better thermal conductivity with the rotating member can reduce the processing time and increase efficiency.
  • the form of the cylindrical rotating member has one feature. There is a second feature in joining using members.
  • the shape of the cylindrical rotating member is as shown in FIG.
  • the cylindrical rotating member has a cylindrical portion 1 formed in a planar shape, and a concentric shape having a diameter shorter than that of the column portion 1 and a height of at least one plate material (upper plate). It has a height less than the plate thickness, and is a raised column or semi-conical shape 3 that is slightly coaxially superimposed and slightly raised. In this figure, a columnar object 3 is shown.
  • the joining method using the cylindrical rotating member is as shown in FIG.
  • a cylindrical or semi-conical shaped object 3 which is a concentric circle having a diameter shorter than the top of the cylindrical rotating member 1 and whose height is at least equal to or less than the thickness of the one plate material.
  • a portion of the slightly raised portion is pushed into the plate while rotating, and is pushed into the one plate at a depth of 4 It is necessary to have a gap 5 between the top 2 of the columnar portion formed in a plane and the one plate material.
  • the portion corresponding to the lower part of the cylindrical or semi-conical shaped part 3 of the joint surface 10 between the upper plate material and the plate material is the joint surface.
  • the rotating member In order to perform friction welding, the rotating member is brought into contact with the surface of one of the plates (upper plate) and rotated. The member is rotated at the required speed, and the frictional heat generated at that time is generated and used for pressure welding It is.
  • the amount of heat generated by the friction is given as a product of a coefficient of friction between the plate and the rotating member, a rotation speed, and a pressure when the rotating member is pressed against the plate.
  • the rotation speed of the rotating member is generally in the range of about 1000 to 2500 rpm.
  • the pressure at which the rotating member presses the plate is about 0.5 to 5 kg Z mm 2 3 ⁇ 4> O o
  • the joining is performed mainly by frictional heat generated between the top of the cylindrical or semi-conical shaped object 3 and the upper plate 6.
  • the gap 5 disappears, and it becomes impossible to remove burrs.
  • the gap 5 always exists between the top 2 of the columnar rotating member 1 and the plate 6.
  • the gap 5 and the depth 4 at which the columnar or semi-conical shaped object is pressed into the one plate material are values appropriately determined by experiments and the like.
  • the joining portion formed by pressing as described above can be formed over the entire surface of the plate material.
  • the portion to be pressed is formed linearly.
  • Partially welded portions may be in a point-like state as found in spot welding.
  • the joining portion may be a flat portion of the plate material or a portion projecting like a flange.
  • the depth 4 pressed into the one plate material and the gap 5 between the top of the cylindrical portion formed in a plane and the one plate material were determined by experiments as follows. I am checking the contents.
  • the result of the sum of the depth 4 and the gap 5 pressed into one plate (upper plate) is that.
  • the height (GAP) of the concentric circular cylinder or semi-cone with a diameter shorter than the top 2 is there.
  • the height of the cylinder or half-cone shape is determined in this way.
  • the rotating tool diameter (tip) is 6 mm.
  • the rotating tool diameter (tip) is 10 mm.
  • the top 2 of the columnar rotating member 1 according to the present invention is formed as a flat surface, and is a concentric circle having a diameter smaller than the diameter of the top 2, and the height thereof is at least the thickness of the one plate.
  • a lathe And forming by cutting For a cylindrical or semi-conical shaped part 3 raised at the following height, use a lathe And forming by cutting. These are integrally formed of the same material.
  • the ratio of the diameter of the cylindrical rotating member to the diameter of a concentric circle whose apex is shorter than the diameter of the flat circle is also determined as appropriate.
  • the outer diameter of the circle of the cylindrical rotating member is 15 mm, and the shape is a cylinder or a half cone. Good results are obtained when the outer diameter of the circle of the object 3 is 10 mm to 6 mm. ing. These can be considered as a rough guide.
  • the tensile shear strength of a joint tends to increase with increasing indentation depth.
  • the indentation depth exceeds a certain indentation depth, the tensile shear strength also becomes maximum and does not increase further. That is, if the treatment is performed at this constant indentation depth, the maximum tensile shear strength by friction welding can be obtained.
  • the tensile shear strength is constant, if the depth from the surface is 0.2 or more, and certainly 0.3 or more, although it depends on the welding speed conditions. Become. And its tensile shear strength is maintained to 0.5 (ie, half the thickness of the top plate). From this, it was found that it is preferable to operate at such an indentation depth (Fig. 20 to Fig. 22). The specific examples are shown in the following examples.
  • FIG. 4 shows an example of the entire apparatus having the columnar rotating member of the present invention.
  • the upper plate member 6 and the lower plate member 7 which are the superposed metal plates are placed on the placing means and fixed.
  • a specific example of the mounting means is composed of a pedestal 12 and a backing part 13, and the object to be bonded is fixed.
  • the pressure applied to the rotating member is provided by pressure adjusting means.
  • the pressure adjusting means includes a pressure adjusting cam 18 and a cam driving motor 19. By operating the pressure adjusting cam, the motor for the rotary head is moved, and the movement is performed by the guide means.
  • the guide means is constituted by a structure in which a rotary rod motor can move along a slide groove 11 provided in a pedestal.
  • any guide means capable of smoothly moving the motor for the rotary rod can be used.
  • a pressure cylinder using hydraulic pressure or pneumatic pressure can be used as the pressure adjusting means, and as a result, pressure can be easily adjusted.
  • the total area can be adjusted by changing the size of the rotating member. If a rotating member having a large diameter is used, a large joining area can be obtained. For this reason, the size of the rotating member can be appropriately determined in consideration of the area of the joint and the like.
  • the entire device can be movable in the right-angle direction (horizontal).
  • FIG. 5 shows an example of the entirety of the apparatus having the columnar rotating member according to the present invention.
  • the upper and lower plate members to be joined are fixed to the pedestal 12.
  • a material feeding mechanism 11 is provided.
  • the cylindrical rotating member is attached to the tip of the rotating rod 16.
  • the rotating port is rotated by a rotating rod motor 17.
  • the rotary head motor 17 is installed so as to be able to move up and down, and moves down during the joining operation to advance the work on the cylindrical rotating member.
  • Example 1 The same can be applied to other plate materials in consideration of the characteristics of the plate material. It is not limited to this specific example.
  • the conventional method is also shown as a comparative example.
  • Example 1 The conventional method is also shown as a comparative example.
  • the experiment was performed under the following conditions.
  • Example 1 Experiments were conducted on Example 1 and Comparative Example 1 (in the case of the conventional method of the present inventors) in the case of joining an aluminum alloy and an aluminum-pum alloy.
  • the shape of the cylindrical rotating member of the present invention is as shown in FIG. G in this case represents the gap. This is the case of t-1.0 0 1 2. Further, the shape of the conventional cylindrical rotating member is as shown in FIG.
  • FIG. 11 shows a joint obtained by using the columnar rotating member of the present invention.
  • D is the diameter of the cylindrical portion.
  • C is the diameter of the cylinder or semi-cone shape. Looking at the results, no burrs were observed in any case, and the effect of the present invention can be confirmed.
  • FIG. 12 shows a joint obtained by using a conventional cylindrical rotating member.
  • D is the diameter of the cylinder.
  • generation of burrs can be remarkably recognized in the upper part of the figure. Comparing the results shown in FIGS. 11 and 12, it can be seen that the results of the present invention have no paris and good results.
  • Example 2
  • the experiment was performed under the following conditions.
  • Example 2 using the cylindrical rotating member of the present invention and Comparative Examples 2 and 3 using the conventional cylindrical rotating member were performed under the following conditions when the aluminum alloy and the SPC were joined.
  • FIG. 16 shows a joint obtained by using the columnar rotating member of the present invention.
  • D is the diameter of the cylindrical portion.
  • C is the diameter of the cylinder or semi-cone shape. Looking at the results, no burrs were observed in any case, confirming the effect of the present invention.
  • FIGS. 17 and 18 show a joint obtained by using a conventional cylindrical rotating member.
  • D is the diameter of the column.
  • the occurrence of burrs can be remarkably observed in the upper part of the figure. Comparing the results of FIG. 16, FIG. 17, and FIG. 18, it can be seen that the results of the present invention show no occurrence of paris and good results.
  • Example 3
  • the indentation depth is plotted on the X-axis and the tensile shear strength is plotted on the Y-axis. The results are shown below according to the welding speed conditions. .
  • the tensile shear strength was 6.8 kN when the indentation depth was 0.1 mm.
  • the tensile shear strength is approximately 7.0 kN, 0.3 mm, 7.2 kN, and 0.5 mm The shear strength was the same, 7.2 kN.
  • the tensile shear strength was 7.2 kN.
  • the tensile shear strength is almost 7.2 kN, and at 0.3 mm, the tensile shear strength is 7.2 kN. At 0.5 mm, the tensile shear strength was similarly 7.2 kN. Under a welding speed of 0.6 mm / s, the tensile shear strength was 3.6 kN when the indentation depth was 0.1 mm. Next, when the indentation depth is 0.2 mm, the tensile shear strength is 4.5 kN, and thereafter, it is also 0.3 kN and 7.2 kN. In mm, the tensile shear strength was similarly 7.2 kN.
  • the indentation depth varies depending on the welding speed, but if the indentation depth is 0.2 mm or more, which is 1-5 of the plate thickness, the tensile shear strength is 0.5 mm in tensile shear strength if the indentation depth is 0.5 mm or more.
  • the indentation depth is 3/10 of the plate thickness, 0.3 mm, and the indentation depth is 0.5 mm, the tensile shear strength of 0.5 mm. It can be seen that the value is almost the same as the value of. From this, it can be seen that the indentation depth is at least 2/10 or more of the plate thickness, more preferably 3/10 or more of the plate thickness, and at most 5/10. Similar tests were performed on different materials (combination of 1-mm-thick 505 2 aluminum alloy and 2 0 17 aluminum alloy). The results are as shown in FIG.
  • the tensile shear strength was 7. OkN when the indentation depth was ⁇ .1 mm.
  • the tensile shear strength was approximately 7.0 kN, and at 0.5 mm, it was 6.8 kN.
  • the tensile shear strength was 6.3 kN.
  • the indentation depth is 0.3 mm
  • the tensile shear strength is approximately 6.O kN
  • the indentation depth is 0.5 mm
  • the tensile shear strength is similar to 6.4 kN.
  • the tensile shear strength was 3.0 kN when the indentation depth was 0.1 mm.
  • the tensile shear strength of the sample was 7.0 kN, and the tensile shear strength was 0.5 mm at the same value of 7.0 kN.
  • the tensile shear strength was 3.9 kN when the indentation depth was 0.1 mm.
  • the tensile shear strength is 6.3 kN, and at 0.5 mm, the tensile shear strength is similar to 6.2 kN.
  • the tensile shear strength was 6.2 kN when the indentation depth was 0.1 mm.
  • the value was 6.O kN or more, and at 0.5 mm, the tensile shear strength was almost the same value at 6.O kN or more (FIG. 21).
  • the indentation depth is 0.5 mm, which is 1/2 of the plate thickness, the tensile shear strength is almost the highest.
  • the indentation depth varies depending on the welding speed, but if the indentation depth is 0.2 mm or more, which is the plate thickness, the indentation depth is 0.5 mm. It is a sufficiently high value compared to the strength value, and if the indentation depth is 0.30, which is the plate thickness of 0.3 mm, the indentation depth is 0.5 mm tensile shear strength. It can be seen that the value is almost the same as the value of.
  • the indentation depth is at least 2/10 of the plate thickness, more preferably 3/10 of the plate thickness, and at most 5/10.
  • the indentation depth is 210 of the plate thickness and the tensile shear strength is ⁇ ⁇ value.
  • the indentation depth is the same even when the plate thickness is 3-10. It can be seen that an indentation depth of 0.2 mm, which is a plate thickness of 210, is sufficient.
  • the indentation depth is at least 2/10 or more of the plate thickness, more preferably 3/10 or more of the plate thickness, and from these results, it is sufficient that the indentation depth is at most 5/10. Can be analogized.
  • a relatively thin metal plate can be joined by friction welding.
  • the method according to the present invention does not generate a par with the conventional friction welding method of the present inventors, and enables more reliable joining.
  • the bonding condition does not damage the surface or the structure of the plate material, and the results of the shear load and tensile test are also good.Even if burrs occur, the burrs can be removed, so the finish is good.
  • a metal plate with a smooth joint can be obtained as a smooth one. Further, by adjusting the state in which the columnar or semi-conical shaped part is pressed into the one plate, the tensile shear strength can be kept at the maximum.

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  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

Soudage par friction dans lequel des éléments en plaque métallique disposés en couches les uns sur les autres sont joints sans produire de barbes. Un élément rotatif circulaire en forme de colonne possède une section de grand diamètre (1) dont la section supérieure est aplanie et possède une section de petit diamètre (3) en forme de colonne ou en forme de cône semi-circulaire sur la section supérieure de la section de grand diamètre. La section de petit diamètre est coaxiale avec la section de grand diamètre, est d’un cercle concentrique possédant un diamètre inférieur à celui de la section supérieure, est plate et possède une hauteur qui ne dépasse pas l’épaisseur de l’un quelconque (6) des éléments en plaque à joindre. Lors de la jonction, la section de petit diamètre circulaire en forme de colonne ou semi-circulaire en forme de cône, en rotation, est pressée dans l’un des éléments en plaque (6) de manière telle qu’il existe un vide (5) entre la section supérieure plate (2) de la section de grand diamètre (1) et l’un quelconque (6) des éléments en plaque. Les éléments en plaque métallique sont joints alors que des barbes produites par le vide (5) sont coupées par la section supérieure plate (2) de la section de grand diamètre (1) et une section en coin (8).
PCT/JP2005/006428 2004-03-25 2005-03-25 Méthode et dispositif de jonction de plaques métalliques par soudage par friction WO2005092558A1 (fr)

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JP2009266707A (ja) * 2008-04-28 2009-11-12 Fuji Electric Fa Components & Systems Co Ltd 電気接触子の製造方法
JP2010052039A (ja) * 2008-07-30 2010-03-11 Isel Co Ltd 摩擦攪拌加工装置及び摩擦攪拌加工用ツールの再生方法
WO2011125376A1 (fr) * 2010-04-02 2011-10-13 本田技研工業株式会社 Matériaux hétérogènes réunis et procédé de réunion pour ceux-ci
US20130239397A1 (en) * 2010-11-23 2013-09-19 Centre De Recherche Industrielle Du Quebec Apparatus and Method for Inserting a Component Through the Surface of a Workpiece
US8708628B2 (en) 2010-11-23 2014-04-29 Centre De Recherche Industrielle Du Quebec Insertion component and method for inserting thereof through the surface of a workpiece
US20180071861A1 (en) * 2015-05-18 2018-03-15 Ihi Corporation Friction stir welding device and friction stir welding method
US20180207745A1 (en) * 2015-07-23 2018-07-26 Nippon Light Metal Company, Ltd. Joining method and method for manufacturing heat sink
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WO2009098836A1 (fr) * 2008-02-08 2009-08-13 Fuji Electric Fa Components & Systems Co., Ltd. Procédé de fabrication de contact électrique et équipement de fabrication de contact électrique
JP2011508945A (ja) * 2008-02-08 2011-03-17 富士電機機器制御株式会社 電気接触子の製造方法及び電気接触子の製造装置
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JP2009266707A (ja) * 2008-04-28 2009-11-12 Fuji Electric Fa Components & Systems Co Ltd 電気接触子の製造方法
JP2010052039A (ja) * 2008-07-30 2010-03-11 Isel Co Ltd 摩擦攪拌加工装置及び摩擦攪拌加工用ツールの再生方法
WO2011125376A1 (fr) * 2010-04-02 2011-10-13 本田技研工業株式会社 Matériaux hétérogènes réunis et procédé de réunion pour ceux-ci
US9333590B2 (en) 2010-04-02 2016-05-10 Honda Motor Co., Ltd. Joined heterogeneous materials and joining method therefor
US9120188B2 (en) 2010-11-23 2015-09-01 Centre De Recherche Industrielle Du Quebec Apparatus and method for inserting a component through the surface of a workpiece
US8708628B2 (en) 2010-11-23 2014-04-29 Centre De Recherche Industrielle Du Quebec Insertion component and method for inserting thereof through the surface of a workpiece
US9259810B2 (en) 2010-11-23 2016-02-16 Centre De Recherche Industrielle Du Quebec Component to be inserted through the surface of a workpiece
US20130239397A1 (en) * 2010-11-23 2013-09-19 Centre De Recherche Industrielle Du Quebec Apparatus and Method for Inserting a Component Through the Surface of a Workpiece
US9381601B2 (en) 2010-11-23 2016-07-05 Centre De Recherche Industrielle Du Quebec Method for inserting a component through a surface of a workpiece
US20180071861A1 (en) * 2015-05-18 2018-03-15 Ihi Corporation Friction stir welding device and friction stir welding method
US11229972B2 (en) * 2015-05-18 2022-01-25 Ihi Corporation Friction stir welding device and friction stir welding method
US20180207745A1 (en) * 2015-07-23 2018-07-26 Nippon Light Metal Company, Ltd. Joining method and method for manufacturing heat sink
CN115213580A (zh) * 2021-05-26 2022-10-21 广州汽车集团股份有限公司 一种单面点焊接结构及焊接方法

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