KR20140069286A - Method for manufacturing lidded container and joining method - Google Patents

Abstract

And to provide a method of manufacturing a container provided with a lid capable of reducing unevenness in strength of a container provided with a lid. A main body portion 2 having a bottom portion 11 and a rectangular frame-shaped side wall portion 12 as viewed in a plan view erected on the bottom portion 11 and a cover portion 12 for closing the opening 5 of the main body portion 2. [ (2) and (3) along a reference line inclined with respect to one side of the abutting portion while abutting the lower surface of the lid part (3) with the upper surface of the side wall part (12) And a frictional pressure welding step in which the lid portion 3 is reciprocated relatively linearly to frictionally press-contact.

Description

[0001] METHOD FOR MANUFACTURING LIDED CONTAINER AND JOINING METHOD [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method of manufacturing a container having a lid and a bonding method.

For example, Patent Documents 1 and 2 disclose a method of joining metal members each having a cylindrical shape by friction welding. In this joining method, frictional heat is generated on the joining surfaces by rotating the end faces of the pair of cylindrical metal members at a high speed around the central axis while pressing the joining faces in the direction of approaching each other, thereby joining both members. In the conventional joining method, since the end faces of the metal members show a circular shape, when the metal member is rotated around the central axis, frictional heat can be generated without being tilted.

On the other hand, the friction welding has an advantage that the deformation of the work is small and the machining speed is high. However, since the friction welding is accompanied by a dynamic process even though it is a solid-phase bonding, the watertightness and the airtightness at the joint portion are liable to become unstable and there is a problem that buckling occurs at the joint portion. For example, Patent Document 2 proposes an external burr cutting apparatus for a friction welding apparatus in which the cutting edge is improved so that the cutting edge can be automatically positioned with respect to the outer burr.

Japanese Patent Application Laid-Open No. 2009-107006 Japanese Patent Laid-Open No. 07-51902 Japanese Patent Application Laid-Open No. 2005-251595 Japanese Patent Laid-Open No. 08-215863

Here, FIG. 32 is a view for explaining a problem, (a) is an exploded perspective view before bonding, and (b) is a schematic top view after bonding. Here, a case in which a container having a lid is manufactured by joining a rectangular main body portion 201 in a plan view and a rectangular lid portion 202 in plan view by friction welding is illustrated. The main body portion 201 has a bottom portion 203 and a frame-shaped side wall portion 204 rising from an end portion of the bottom portion 203. The lid portion 202 is a plate-like member covering the opening of the main body portion 201. [

When friction welding is applied to a rectangular member viewed from the plane, it is impossible to rotate the metal members together as in the conventional case. 32 (b), after the upper surface of the side wall portion 204 and the lower surface of the lid portion 202 are abutted against each other, the side surface of the side wall portion 204 is parallel to the extending direction of the longer side of the side wall portion 204 It is conceivable that the main body 201 and the lid portion 202 are relatively reciprocally moved and joined together.

When the tensile strength at points M and N of the container having the lid thus bonded was measured, it was found that the tensile strength at point N was considerably low with respect to point M. This is considered to be because the difference in frictional heat occurring at the time of friction welding at the points M and N is large, which affects the bonding strength.

Further, when the airtightness of the container having the lid thus bonded was measured, it was found that the airtightness was considerably low. This is considered to be because the difference in the movement distance of abrasion wear during friction welding at M point and N point is large and also affects airtightness.

On the other hand, Patent Document 3 discloses a high-frequency induction heating coil for performing high frequency induction heating at a proper temperature by high frequency induction heating and for facilitating cutting and removing of burrs after the burr is removed prior to burr removal by cutting. Device has been proposed.

Further, a method for eliminating the burrs generated during friction welding is also devised. For example, Patent Document 4 discloses a friction welding method in which a pair of base materials held in opposition to each other are heated while contacting each other while relatively rotating the base materials, and the base materials are pressed again after the base material contact ends are melted, A step of press-forming burrs generated in the base material joining portion by applying a force against the burr generating direction when the burrs are generated.

However, in these methods, the mechanism of the apparatus realizing the method becomes complicated, and the number of processes increases, which causes a rise in cost.

In view of the above, the present invention provides a method of manufacturing a container with a lid capable of reducing the unevenness of strength at each joint portion of a container having a lid and improving the watertightness and airtightness of the container provided with the lid And to provide an image processing apparatus. It is another object of the present invention to provide a joining method capable of improving bonding quality at the same time while eliminating burrs generated in friction welding.

In order to solve such a problem, the present invention provides a method of manufacturing a semiconductor device, comprising the steps of: preparing a body portion having a bottom portion and a side wall portion in a rectangular frame shape as viewed in a plane rising from the bottom portion; A friction welding is performed in which the upper surface and the lower surface of the lid portion are abutted to each other to form a butt portion and the lid portion and the main body portion are linearly reciprocated relative to each other along a reference line inclined with respect to one side of the butt portion, The process comprising the steps of:

According to this manufacturing method, it is possible to reduce the difference in frictional heat between the joint portions by linearly moving the members in an oblique direction in the friction welding process, and further, it is possible to reduce the unevenness of the strength at the joint portions of the container having the lid Can be made small. Further, by diagonally moving the members obliquely in the friction welding process, it is possible to reduce the difference in the distance of movement of the abrasive particles at each joint, and further, the watertightness and airtightness of the container provided with the lid can be improved.

When the abutting portion exhibits a square shape in the friction welding process, it is preferable that the baseline is set within a range of +/- 30 degrees with respect to the diagonal line of the abutting portion.

When the abutting portion exhibits a rectangular shape in the friction welding process, it is preferable that the reference line is set within a range of 占 0 占 with respect to the diagonal line of the abutting portion.

In the friction welding process, it is preferable that the reference line is set to be parallel to the diagonal line of the abutting portion.

According to this manufacturing method, it is possible to reduce the unevenness of the frictional heat generated at the joint portions when the main body portion and the lid are friction-pressure-contacted, so that the unevenness of the strength at each joint portion of the container having the lid is reduced .

In the friction welding process, it is preferable to set the angle formed by one side of the abutted portion and the reference line to 35 to 55, more preferably to 40 to 50, and to 45 .

According to this manufacturing method, when the main body portion and the lid are friction-pressure-contacted, it is possible to reduce the unevenness of the distance of movement of the wearer at each joint portion, and the watertightness and airtightness of the container provided with the lid can be improved.

A main body concave groove portion formed on the upper surface of the side wall portion in a rectangular frame shape in plan view; a body inner circumferential surface formed on an inner side of the body concave groove portion; The inner circumferential surface of the main body and the lower surface of the lid portion are preferably opposed to each other in the friction welding step.

A lid recessed groove portion formed on the lower surface of the lid portion in a rectangular frame shape as viewed in a plan view; a lid inner circumferential surface formed on the inner side of the lid recessed groove portion; and a lid recessed groove portion formed on an outer side of the lid recessed groove portion, And the upper surface of the side wall portion and the lid inner circumferential surface are opposed to each other in the friction welding step.

According to this manufacturing method, the burr formed by the friction welding is housed in each concave groove portion, so that labor for cutting the burr can be omitted.

The present invention also provides a method of manufacturing a metal member, comprising: a friction welding step of frictionally pressing a first metal member and a second metal member; And a welding step of welding the two members together.

It is preferable that a concave portion is formed on at least one of opposite surfaces of the first metal member and the second metal member. According to this configuration, the watertightness and airtightness of the hollow container composed of the first metal member and the second metal member can be improved.

Further, in the welding step, it is preferable to perform laser welding. With this configuration, the welding process can be easily performed.

It is preferable that the first metal member and the second metal member are made of aluminum or an aluminum alloy. According to this constitution, a hollow container which is lightweight and excellent in corrosion resistance can be produced.

Although the friction welding is a solid phase bonding, it involves a dynamic process, so that the watertightness and airtightness at the joint are liable to become unstable and burrs are generated in the joint portion. There is an advantage that it is hardly affected by the gap, the oxide film, the contamination, etc. on the abutting surface.

On the other hand, since welding involves the melting of the surface of the filler material and the material to be welded by a heat source such as an arc or a laser, the quality of the joint is influenced by the influence of the pinhole, the gap in the contact surface, There is a problem that it is easy to receive, but watertightness and airtightness are improved, and there is an advantage that the bonding surface is comparatively smooth.

Therefore, the inventor of the present invention has devised a process capable of supplementing the mutual technical problems of friction welding and welding while taking advantage of mutual advantages of friction welding and welding, and by this process, ). ≪ / RTI >

According to the method for manufacturing a container provided with the lid according to the present invention, it is possible to reduce the unevenness of the strength at each joint portion of the container provided with the lid, thereby improving the watertightness and airtightness of the container provided with the lid . Further, according to the joining method of the present invention, it is possible to improve the joining quality at the same time while removing burrs generated in the friction welding.

1 is an exploded perspective view of a container provided with a lid according to a first embodiment of the present invention.
2 is a sectional view of the main body according to the first embodiment.
3 is a perspective view of the lid portion according to the first embodiment.
4 is a cross-sectional view of the lid portion according to the first embodiment.
Fig. 5 is a cross-sectional view showing a state of returning in the first embodiment. Fig.
6 is a plan view showing a friction welding process according to the first embodiment.
7 is a cross-sectional view showing a container having a lid according to the first embodiment.
8 is a plan view showing a friction welding process according to the second embodiment of the present invention.
Fig. 9 is a view showing a first modification, wherein (a) shows a state before bonding, and (b) shows a state after bonding.
10 is a view showing a second modification, wherein (a) shows a state before bonding, and (b) shows a state after bonding.
Fig. 11 is a view showing a third modification, wherein (a) shows a state before bonding, and (b) shows a state after bonding.
12 is an exploded perspective view of a container provided with a lid according to a third embodiment of the present invention.
13 is a cross-sectional view of a container provided with a lid according to the third embodiment.
FIG. 14A is a plan view of a container having a lid according to a fourth embodiment of the present invention, and FIG. 14B is a sectional view of a container having a lid according to the fourth embodiment.
15 is a perspective view of a first metal member and a second metal member according to a fifth embodiment of the present invention.
16A is a cross-sectional view showing a friction welding process according to a fifth embodiment, and FIG. 16B is a cross-sectional view showing a welding process according to the present embodiment.
17 is a view for explaining Embodiment 1, wherein (a) is a plan view and (b) is a graph showing the relationship between a friction angle and a tensile strength.
Fig. 18 is a view for explaining a second embodiment, wherein (a) is a plan view and (b) is a graph showing the relationship between a friction angle and a tensile strength.
Fig. 19 is a cross-sectional view of a butt portion in each condition of Example 2; Fig.
20 is a table summarizing the bonding conditions of Example 3. Fig.
Fig. 21 is a graph showing the relationship between the friction angle and the pressure drop ratio in Example 3, wherein (a) shows the results of the rectangular test pieces, and (b) shows the results of the square test pieces.
FIG. 22 is a table showing the relationship between the area of the intermittent friction portion and the friction angle, and the precondition for calculating the relationship between the wear amount movement distance and the friction angle.
Fig. 23 is a schematic plan view for explaining the intermittent friction portion, wherein Fig. 23 (a) is a schematic plan view showing a state in which the main body portion and the lid portion are in contact with each other, FIG.
24A is a graph showing the relationship between the area of the intermittent frictional portion and the frictional angle when the lid body is friction-pressure-contacted with the main body portion of the rectangular container (the aspect ratio of the long side and the short side is 3: 1) Is a graph showing the relationship between the area of the intermittent frictional portion and the frictional angle when frictional pressure contact is made between the main body of the square container and the lid.
25 is an enlarged schematic plan view showing a state in which the lid part is moved with respect to the main body part in part A of Fig.
26 (a) is a graph showing a relationship between a wear amount of a wearer and a frictional angle when a lid body is friction-pressure-contacted with a rectangular container (aspect ratio of a long side and a short side is 3: 1) Is a graph showing the relationship between the wear distance and the friction angle when the main body of the square container and the lid are friction-pressure-contacted.
Fig. 27 is a view showing the specimens G and H according to Example 4, wherein (a) is a plan view and (b) is a II cross-sectional view of (a).
Fig. 28 is a view showing the test bodies I to M according to the fourth embodiment, wherein (a) is a plan view and (b) is a cross-sectional view taken along the line II-II in Fig.
Fig. 29 (a) shows the welding conditions of the specimens G and H, Fig. 29 (b) shows the welding conditions of the specimens I and K, and Fig.
Fig. 30 (a) is a schematic cross-sectional view of a sound portion after the friction welding process of the test piece G, Fig. 30 (b) is a schematic cross-sectional view of a portion including bonding defects after the friction welding process of the test piece G, Is a schematic cross-sectional view of the specimen G after the welding process.
31 is a table showing the condition and the pressure decrease rate in Example 4. Fig.
Fig. 32 is a view for explaining a problem, (a) is an exploded perspective view before bonding, and (b) is a schematic top view after bonding.

[First Embodiment]

A method of manufacturing a container having a cover according to an embodiment of the present invention will be described in detail with reference to the drawings. The container provided with the lid according to the present embodiment is a component of a cooling system mounted on an electronic device such as a personal computer and is a component for cooling a CPU (electronic component) or the like. By flowing cooling water through the inside of the container having the lid, the heat of the CPU can be lowered.

The container 1 having a lid has a main body 2 and a lid 3 as shown in Fig. The body portion 2 and the lid portion 3 are both made of aluminum alloy. The main body portion 2 and the lid portion 3 may be made of any material capable of friction welding, and may be made of another metal material or resin. First, the constitution of the main body portion 2 and the lid portion 3 before manufacture will be described. The main body portion 2 and the lid portion 3 are formed by cutting using a ball mill or an end mill, for example.

As shown in Fig. 1, the main body portion 2 has a rectangular shape in plan view. The body portion 2 has a box-shaped member 4, an opening 5 formed in the box-shaped member 4, and a plurality of fins 6 formed inside the box- The box-shaped member 4 is composed of a bottom portion 11 and a frame-shaped side wall portion 12 that stands on the bottom portion 11. [ The aspect ratio (aspect ratio) of the main body portion 2 is 3: 1.

The side wall portion 12 is composed of four side walls, and each of the side walls has an equivalent shape. The side wall portion 12 has an inner surface 13 and an outer surface 14 and an upper surface 15 as shown in FIG. The inner surface 13 and the outer surface 14 are perpendicular to the bottom portion 11. The upper surface 15 is provided with a body inner circumferential surface 16 formed around the opening 5, a body concave groove portion 17 formed on the outer side of the body inner circumferential surface 16, (18) are formed.

The body inner circumferential surface 16 is formed in a rectangular frame shape in plan view around the opening 5. The inner circumferential surface 16 of the body is a horizontal surface, and has a constant width.

The main body concave groove portion 17 is a groove formed in a rectangular frame shape in plan view along the circumference of the main body inner circumferential surface 16. The main body concave groove portion 17 is formed in a semicircular shape when viewed in cross section, and is opened upward.

The main body circumferential surface 18 is formed in a rectangular frame shape in plan view along the periphery of the main body concave groove section 17. [ The main body circumferential surface 18 is a horizontal surface, and is formed to have a constant width. The main body circumferential surface 18 is formed at a position lower than the inner circumferential surface 16 of the main body.

The pin 6 has a plate shape and is erected perpendicularly to the upper surface of the bottom portion 11. Six fins 6 are provided in parallel in this embodiment. The number of pins 6 is not limited.

As shown in Figs. 3 and 4, the lid portion 3 has a rectangular shape in plan view and has the same size as the main body portion 2. As shown in Fig. The lid portion 3 has a plate shape and has an upper surface 21, four side surfaces 22 and a lower surface 23. The lower surface 23 is provided with a lid center surface 24 formed at the center and a lid inner side concave groove portion 25 formed around the lid center surface 24 and a lid inner circumferential surface 25 formed around the lid internal concave groove portion 25 A lid outer concave groove 27 formed around the lid inner circumferential surface 26 and a lid outer circumferential surface 28 formed around the lid outer concave groove 27 are formed.

The lid center surface 24 is rectangular in plan view and is formed at the center of the lid portion 3. The lid center plane (24) has a horizontal plane. The lid inner concave groove portion 25 is a groove formed in the shape of a frame along the periphery of the lid center surface 24. The cover inner concave groove portion 25 is formed in a semicircular shape when viewed in cross section, and is opened downward.

The lid inner circumferential surface 26 is formed in a rectangular frame shape in plan view along the periphery of the lid inner concave groove portion 25. [ The lid inner circumferential surface 26 has a horizontal plane. The shape and the width of the lid inner circumferential surface 26 are the same as those of the inner circumferential surface 16 of the body. That is, the lid inner circumferential surface 26 and the inner circumferential surface 16 of the main body are in surface contact with each other. The lid inner circumferential surface 26 is formed at a lower position than the lid center surface 24. [

The cover outer concave groove 27 is a groove formed in a rectangular frame shape in plan view along the periphery of the lid inner circumferential surface 26. The cover outer concave groove portion 27 is formed in a semicircular shape when viewed in cross section, and is opened downward.

The lid outer circumferential surface 28 is formed in a rectangular frame shape in plan view along the periphery of the lid outer concave groove 27. The lid outer circumferential surface 28 is a horizontal plane. The shape and the width of the lid outer circumferential surface 28 are the same as those of the outer surface 18 of the body. The lid outer circumferential surface 28 is formed at the same height position as the lid center surface 24.

Next, a specific joining method will be described. In the method of manufacturing a container provided with the lid according to the present embodiment, a preparing step and a friction welding step are performed.

In the preparation step, the metal member is processed to prepare the main body portion 2 and the lid portion 3 described above.

5, the main body portion 2 and the lid portion 3 are fixed to a friction welding apparatus (not shown) with a jig, respectively, and then the inner peripheral surface 16 of the side wall portion 12, And the lid inner circumferential surface 26 of the lid portion 3 are in surface contact with each other. A portion where the main body inner peripheral surface 16 and the lid inner peripheral surface 26 are abutted is also referred to as " abutting portion J ". The abutted portion J has a rectangular frame shape in plan view and is substantially similar to the outer shape of the main body portion 2 and the lid portion 3.

In the friction welding process, a friction process and a pressure welding process are performed. In the friction process, as shown in Fig. 6, when viewed from a plane, while pressing the main body 2 and the lid 3 in the direction of approaching each other, The body portion 2 and the lid portion 3 are relatively reciprocally and linearly reciprocated along the reference line C3. In the present embodiment, the reference line C3 is set so as to be parallel to the diagonal line of the butted portion J.

Further, in the present embodiment, only the lid portion 3 is linearly reciprocated without moving the body portion 2. The conditions in the friction process may be appropriately set, but are set at, for example, a frequency of 50 Hz, an amplitude of 2.0 mm, and a friction pressure of 40 MPa. The friction process time is set to about 5 to 10 seconds.

In the present embodiment, the reference line C3 is set to be parallel to the diagonal line of the butt portion J, but the present invention is not limited to this. 6, the position of the center line C1 passing through the center of the butted portion J in the anteroposterior direction is set to 0, the position of the center line C2 passing through the center of the butted portion J in the right and left direction is set to 90, The angle from the center line C1 to the reference line C3 is defined as the friction angle alpha. The reference line C3 in the rubbing step may be set so that the friction angle alpha is not 0 or 90 degrees.

That is, the frictional angle? May be set so that the moving direction of either the main body 2 or the cover 3 is oblique to one side constituting the abutted portion J. The reference line C3 is preferably set within a range of 占 0 占 with respect to the diagonal line of the butted portion J when the abutting portion J is rectangular in plan view, Deg.], And it is most preferable to set it to be parallel to the diagonal line.

In the pressure welding step, after the friction process is completed, the main body portion 2 and the lid portion 3 are pressed against each other in a direction close to each other without relative movement. The conditions in the pressure-splicing step can be appropriately set, but the pressure is set to, for example, 80 MPa. The pressure welding process time is set to about 3 to 5 seconds.

7 is a cross-sectional view showing a container provided with a lid according to the first embodiment. As shown in Fig. 7, frictional heat is generated in the abutted portion J by the above-described friction process. Thereafter, by stopping the amplitude and pressing by the pressure welding step, an intermolecular attractive force acts on the abutting portion J to couple the inner circumferential surface 16 of the body and the inner circumferential surface 26 of the lid. During the friction process, the body inner circumferential surface 16 and the lid inner circumferential surface 26 are rubbed together to form burrs P1 and P2. The burr P1 generated inside the abutting portion J is housed in a hollow portion formed by the body portion 2 and the lid portion 3 engaged with each other. The burr P2 generated on the outer side of the abutted portion J is accommodated in a space surrounded by the main body concave groove portion 17 and the lid outer concave groove portion 27. [

The burrs P1 and P2 are generated when the main body inner peripheral surface 16 and the lid inner peripheral surface 26 are rubbed against each other so that the height of the main body inner peripheral surface 16 and the lid inner peripheral surface 26 is slightly reduced. As a result, the lid center surface 24 and the upper surface of the fin 6 are in contact with each other, or close to each other with a minute gap therebetween. Further, the main body circumferential surface 18 and the lid circumferential surface 28 are in contact with each other or close to each other with a fine gap therebetween. The main body inner circumferential surface 16 is located above the main body circumferential surface 18 and the lid inner circumferential surface 26 is located below the lid circumferential surface 28 in order to secure shrinkage margin in the friction welding step. By the above process, the container 1 having the lid is formed.

According to the above-described method for manufacturing a container having a lid, it is possible to reduce the unevenness in the temperature of the frictional heat by reciprocatingly moving the members in the frictional pressure welding step at an oblique angle. In addition, The unbalance of the strength can be reduced. The grounds are as follows.

The burr P2 formed by the friction welding process is housed in a space surrounded by the main body concave groove portion 17 and the cover outer concave groove portion 27 while the main body outer peripheral surface 18 and the lid outer peripheral surface 28 are closed The burr P2 is not exposed to the outside. Therefore, the operation of removing the burr P2 after the bonding can be omitted.

[Second Embodiment]

Next, a second embodiment of the present invention will be described. The method of manufacturing a container with a lid according to the second embodiment differs from that of the first embodiment in that a container 1A having a lid in a square shape in plan view is manufactured as shown in Fig. The abutted portion J1 shows a substantially square frame shape in plan view. Since the configuration of the container 1A having the lid is the same as that of the first embodiment, the same reference numerals are assigned to the overlapping portions and the detailed description is omitted.

In the method of manufacturing a container provided with the lid according to the present embodiment, a preparing step and a friction welding step are performed. The preparation process is performed in the same manner as in the first embodiment.

In the friction welding step, as shown in Fig. 8, when viewed from a plane while pressing in the direction in which the main body portion 2 and the lid portion 3 are close to each other, Reciprocates the body portion 2 and the lid portion 3 relatively linearly along the reference line C3. In this embodiment, the reference line C3 is set so as to be parallel to the diagonal line of the butt portion J1. In the present embodiment, since the butt portion J1 has a square shape (the ratio of the lengths of the adjacent sides is 1: 1), the friction angle is 45 degrees.

As described above, even when the ratios of the adjoining sides among the sides constituting the abutted portion J1 are equal, the same effect as that of the first embodiment can be obtained.

It is preferable that the reference line C3 is set within a range of +/- 30 degrees with respect to the diagonal line of the butted portion J when the abutted portion J has a rectangular shape in plan view, More preferably within a range of + -20 [deg.], And it is most preferable to set it parallel to the diagonal line.

Next, a modification of the present invention will be described. The shapes of the main body 2 and the cover 3 are not limited to those of the first embodiment. For example, the first to third modifications may be employed.

[Modified Example 1]

As shown in Fig. 9A, the main body portion 2 of Modified Example 1 is the same as that of the first embodiment. However, since the lower surface 23 of the lid portion 3 is smooth, different. The burr P1 generated by the friction welding process is accommodated in the hollow portion formed by the body portion 2 and the lid portion 3 engaged with each other and the burr P2 is accommodated in the hollow portion as shown in Figure 9 (b) And is housed in the main body recessed groove portion 17. According to Modification 1, the main body outer circumferential surface 18 and the lower surface 23 are closed, and the burr P2 is accommodated in the main body recessed groove portion 17, so that the cutting operation of the burr P2 can be omitted. In addition, since it is not necessary to form the concave groove portion on the lower surface 23 of the lid portion 3, the labor of labor can be omitted.

[Modified example 2]

10 (a), the lid portion 3 of Modification Example 2 is the same as that of the first embodiment, except that the upper surface 15 of the side wall portion 12 of the main body portion 2 is smooth Which is different from the first embodiment. As shown in Fig. 10 (b), the burr P1 generated by the friction welding process is housed in a hollow portion formed by the main body portion 2 and the lid portion 3 engaged with each other. The burr P2 is housed in the lid outer concave groove 27. The upper surface 15 and the lid peripheral surface 28 are closed and the burr P2 is accommodated in the lid outer concave groove portion 27. Therefore, the cutting operation of the burr can be omitted. Further, since there is no need to form concave grooves or the like on the upper surface 15 of the side wall portion 12, the work effort can be omitted.

[Modification 3]

The upper surface 15 of the side wall portion 12 of the modification 3 is smooth and the lower surface 23 of the lid portion 3 is smooth as shown in Fig. It is different from the form. As shown in Fig. 11 (b), the burr P1 generated by the friction welding process is housed in a hollow portion formed by the body portion 2 and the lid portion 3, Is exposed to the outer surface 14 of the side wall portion 12 and to the outside of the side surface 22 of the lid portion 3. The burr P2 is cut after performing the friction welding process. It is not necessary to form concave grooves or the like on the upper surface 15 of the side wall portion 12 or the lower surface 23 of the lid portion 3 so that the labor of the work can be omitted.

[Third embodiment]

Next, a third embodiment of the present invention will be described. The container 1B having the lid according to the third embodiment is manufactured by joining the lid portion 3 and the main body portion 2 having substantially the same shape as shown in Fig. First, the outline of the main body 2 and the lid 3 will be described.

The main body portion 2 is composed of a bottom portion 11 and a side wall portion 12 rising from the bottom portion 11. The side wall portion 12 has a rectangular frame shape in plan view. The aspect ratio of the side wall portion 12 is not particularly limited, but is 3: 1 in the present embodiment. The wall thickness T1 of the side wall portion 12 is the same in all four sides. A chamfered portion 31 having a rounded chamfer is formed at the outer corner of the four corners of the side wall portion 12. The chamfered portion 31 is formed over the entire length in the height direction.

The lid portion 3 is composed of a bottom portion 11 and a side wall portion 12 rising from the bottom portion 11. [ The side wall portion 12 has a rectangular frame shape in plan view. The lid portion 3 has a shape equivalent to that of the main body portion 2 except that the height of the side wall portion 12 is about half the height of the side wall portion 12 of the main body portion 2 .

13, the upper surface (end surface) of the side wall portion 12 of the main body 2 and the lower surface (end surface) of the side wall portion 12 of the lid portion 3 So as to form a butted portion J2. The outer surfaces of the side wall portions 12 and 12 are formed to have the same height. The planar shape of the butted portion J2 is equivalent to the end surface of the side wall portion 12.

Further, in the friction welding step, as in the first embodiment, it is reciprocated obliquely with respect to one side of the butted portion J2. According to the method for manufacturing a container having a lid according to the third embodiment, substantially the same effects as those of the first embodiment can be obtained. Since the concave portion is formed not only in the main body portion 2 but also in the lid portion 3, it is possible to manufacture a container having a lid having a larger hollow portion.

[Fourth Embodiment]

Next, a fourth embodiment of the present invention will be described. The container 1C having the lid according to the fourth embodiment is different from the third embodiment in that the plane shape is substantially square as shown in Figs. 14A and 14B.

The main body portion 2 is composed of a bottom portion 11 and a side wall portion 12 rising from the bottom portion 11. The side wall portion 12 has a square frame shape in plan view. The wall thickness T1 of the side wall portion 12 is the same in all four sides. The chamfered portion 31 is rounded and chamfered at the outer corner of the four corners of the side wall portion 12. The chamfered portion 31 is formed over the entire length in the height direction.

The lid portion 3 is composed of a bottom portion 11 and a side wall portion 12 rising from the bottom portion 11. [ The sidewall portion 12 has a square frame shape in plan view. The lid portion 3 has a shape equivalent to that of the main body portion 2 except that the height of the side wall portion 12 is about half the height of the side wall portion 12 of the main body portion 2 .

14 (b), the upper surface (end surface) of the side wall portion 12 of the main body portion 2 and the lower surface (end surface) of the side wall portion 12 of the lid portion 3 And the abutted portion J2 is formed. In the frictional pressure welding step, as in the first embodiment, the contact is made to reciprocate obliquely with respect to one side of the butted portion J2.

According to the method for manufacturing a container having a lid according to the fourth embodiment, substantially the same effects as those of the first embodiment can be obtained. Since the concave portion is formed not only in the main body portion 2 but also in the lid portion 3, it is possible to manufacture a container having a lid having a larger hollow portion.

In the containers 1B and 1C provided with lids according to the third and fourth embodiments, the chamfered chamfered portion 31 is provided with a rounded chamfer. However, the chamfered chamfer 31 may be chamfered by, for example, 45 ° . Further, it is not necessary to provide a chamfer.

In the third and fourth embodiments, burrs are inevitably generated on the outer surfaces of the side wall portions 12, 12 after the friction welding process. The burrs may be cut by a cutter device or the like, but the outer surfaces may be welded with burrs as a fusible material, for example. By welding, the burr is removed and the finished surface can be neatly formed. Further, even if there is a joining defect in the butt joint J2 after the friction welding process, the joining defect can be repaired by welding. The type of welding is not particularly limited, but it is preferable to perform laser welding, for example.

[Fifth Embodiment]

A joining method according to a fifth embodiment of the present invention will be described in detail with reference to the drawings. As shown in Fig. 15, the joining method according to the present embodiment exemplifies the case of manufacturing a metal hollow vessel 101 having a hollow portion therein. First, the first metal member 102 and the second metal member 103 to be bonded will be described. In the following description, "upper" and "lower" refer to the states in FIGS. 15 and 16, but they are convenient and do not limit the direction of friction welding or welding.

As shown in Fig. 15, the first metal member 102 is composed of a bottom portion 111 and a side wall portion 112 standing perpendicular to the bottom portion 111. As shown in Fig. The side wall portion 112 has a rectangular frame shape in plan view, and its upper surface is flat. The dimension of the wall thickness T of the side wall portion 112 is equal for each wall. A concave portion 113 is formed at the center of the facing surface of the first metal member 102 facing the second metal member 103. The concave portion 113 is a hollow portion representing a rectangular parallelepiped in the present embodiment.

The second metal member 103 is composed of a bottom portion 121 and a side wall portion 122 rising perpendicularly to the bottom portion 121. The second metal member 103 has the same shape as the first metal member 102. The side wall portion 122 has a rectangular frame shape in plan view and has a flat bottom surface. The dimension of the wall thickness T of the side wall portion 122 is equal for each wall. A concave portion 123 is formed at the center of the facing surface of the second metal member 103 facing the first metal member 102. The concave portion 123 is a hollow portion representing a rectangular parallelepiped in the present embodiment. The first metal member 102 and the second metal member 103 are not particularly limited as far as they can be friction-pressure-contactable with aluminum, aluminum alloy, copper or the like, but in the present embodiment, they are all made of aluminum alloy.

Next, the joining method according to the present embodiment will be described. In the joining method according to the present embodiment, a friction welding process and a welding process are performed.

15, the concave portion 113 of the first metal member 102 and the concave portion 123 of the second metal member 103 are opposed to each other so that the first metal member 102 102) and the second metal member (103). Specifically, the upper surface of the side wall portion 112 of the first metal member 102 and the lower surface of the side wall portion 122 of the second metal member 103 are in surface contact with each other. As a result, a frame-shaped butted portion J is formed in the contact portion of each member in a plan view (see Fig. 16 (a)).

In the friction welding process, a friction process and a pressure welding process are performed. In the friction process, the first metal member 102 and the second metal member 103 are relatively moved in the reciprocating motion in the state in which the first metal member 102 and the second metal member 103 are pressed toward each other, . The moving direction is not particularly limited, but in the present embodiment, it is moved linearly along a direction parallel to the long side of the side wall portion 112. In the present embodiment, only the second metal member 103 linearly reciprocates without moving the first metal member 102.

The conditions in the friction process may be appropriately set, but are set at, for example, a frequency of 100 to 260 Hz, an amplitude of 1.0 to 2.0 mm, and a friction pressure of 20 to 60 MPa. The friction process time is set to about 5 to 10 seconds.

In the pressure welding step, the first metal member 102 and the second metal member 103 are pressed against each other in a direction close to each other without relative movement after the friction process is completed. The conditions in the pressure-splicing step can be set appropriately, but for example, the pressure is set to 60 to 80 MPa. The pressure welding process time is set to about 3 to 5 seconds. Burrs P are formed on the entire outer circumference or a part of the outer periphery on the outer side surface 112a of the side wall portion 112 and the outer side surface 122a of the side wall portion 122 by the friction welding process.

In the welding step, as shown in Fig. 16 (b), the outer surfaces 112a and 122a of the burrs P and P are used as spark plugs throughout the outer periphery of the side wall portion 112 and the side wall portion 122, . The type of welding is not particularly limited, but laser welding is performed in this embodiment. After the welding process, the weld metal (Q) is formed on the outer surfaces (112a, 122a). As a result, the hollow container 101 having a hollow portion therein is manufactured.

According to the bonding method according to the present embodiment described above, the burrs P are removed by welding the outer surfaces 112a and 122a with the burrs P and P, which are inevitably generated by the friction welding process, And the bonding quality can be improved. In addition, in the case of manufacturing the hollow container 101 having a hollow portion therein as in the present embodiment, the watertightness and airtightness of the hollow container 101 can be improved by performing the welding process in addition to the friction welding process.

According to the present embodiment, it is possible to omit the conventional burr cutting process. In addition, welding can be easily performed by performing laser welding in the welding process, and the finished surface can be made neat. Further, even if a bonding defect occurs in the friction welding process, for example, the bonding defect can be repaired in the welding process.

Although the friction welding is a solid phase bonding, it involves a dynamic process, so that the watertightness and airtightness at the joint are liable to become unstable and burrs are generated in the joint portion. There is an advantage that it is hardly affected by the gap, the oxide film, the contamination, etc. on the abutting surface.

On the other hand, since welding involves the melting of the surface of the filler material and the material to be welded by a heat source such as an arc or a laser, the quality of the joint is influenced by the influence of the pinhole, the gap in the contact surface, There is a problem that it is easy to receive, but the watertightness and the airtightness are improved and the bonding surface is relatively smooth.

As in the present invention, by performing friction welding first, a bonding portion having a high bonding strength and a relatively good bonding quality can be obtained. Next, by welding to the outer side surface of the joint portion, the burr formed on the outer side surface can be welded as a filler material, so that the watertightness and airtightness become better and the outer surface becomes relatively smooth.

Even if a pinhole is present in the bonding material before the friction welding, or a gap, an oxide film, or the like is present on the contact surface, these defects may be broken by the material stirring by the friction welding, Or finely and uniformly dispersed. This makes it possible to suppress the occurrence of welding defects such as blow holes in the welding process. Further, even if the penetration in the welding process is insufficient, the watertightness and the airtightness become better.

Particularly in the case of laser welding, there is an advantage in that the deformation of the work is small and the friction welding is performed in which the processing speed is high. That is, in the present invention, it is possible to manufacture a hollow container having higher water-tightness and airtightness by complementing mutual technical problems while taking advantage of the mutual advantages of the friction welding process and the welding process.

Although the embodiment of the present invention has been described above, the present invention is not limited to the above-described bonding method. For example, in the present embodiment, the welding process is performed using the outer surface 112a of the side wall portion 112 and the burrs P on both the outer surface 122a of the side wall portion 122. However, The burr P may be used to perform the welding process when the burr P does not occur in one of the outer surface 112a and the outer surface 122a.

Although the first metal member 102 and the second metal member 103 have the recesses 113 and 123 in the present embodiment, the recesses may be provided on either one of them. Specifically, for example, the present invention may be applied to the case of manufacturing a hollow container having a lid by friction-pressure-bonding the first metal member 102 and the metal plate. The shape of the concave portions 113 and 123 is not limited to the rectangular parallelepiped, and may be different.

Further, the present invention may be applied to a case where a metal member having no concave portion is joined to each other to produce a product without a hollow portion. The amplitude direction in the friction welding process is set so as to be parallel to the long side of the side wall portions 112 and 122 in the present embodiment. However, it may be set to be parallel to the short side portion, . In this embodiment, the moving direction in the friction welding process is set to a straight line. However, for example, in the case of joining cylindrical or cylindrical metal members, the metal members are rotated to perform the friction welding process .

Example

Next, an embodiment of the present invention will be described. In the embodiment, the container 1, 1A having the lid was manufactured by changing the angle of the reference line C3 in the friction welding process, and a part of the butt joints J, J1 was sampled and subjected to a tensile test.

[Example 1]

In the first embodiment, as shown in Fig. 17A, the container 1 having the lid formed into a rectangular shape in a plan view was tested. The aspect ratio (aspect ratio) of the butted portion J is 3: 1. In Example 1, the main body portion 2 was formed of an aluminum alloy ADC12 (JIS). The JIS: ADC12 is composed of 1.5 to 3.5% of Cu, 9.6 to 12.0% of Si, 0.3% or less of Mg, 1.0% or less of Zn, 1.3% or less of Fe, ; 0.3% or less; Pb; 0.2% or less; Sn; 0.2% or less; Al;

In Example 1, the lid portion 3 was formed of aluminum alloy A5052 (JIS). JIS: A5052 is an alloy containing at most 0.25% Si, at most 0.40% of Fe, at most 0.10% of Cu, at most 0.10% of Mn, at least 2.2% of Mg, at least 0.25% of Mg, ; 0.15% or less; and Al (residual amount).

In Example 1, four specimens were prepared, and frictional pressure welding processes were carried out by setting the frictional angle? (The angle from the center line C1 to the reference line C3) at 0 deg., 15 deg., 45 deg. And 90 deg. A region including the center line C1 and a region including the center line C2 were sampled and subjected to a tensile test at the butt portion J of the container 1 having the lid after the friction welding process. The test piece of the area including the center line C1 is referred to as a first test piece X and the test piece of a region including the center line C2 is referred to as a second test piece Y. [

17 (b) is a graph showing the relationship between the friction angle and the tensile strength in Example 1. Fig. When the frictional angle? Is 0 °, it is found that the strength of the first test piece X is about 0 N / mm 2, while the strength of the second test piece Y is about 75 N / mm 2. When the frictional angle α is set to 0 °, that is, when the frictional angle α is set to be parallel to the extending direction of the short side of the butt joint portion J, the tensile strength is changed depending on the position of the abutted portion J of the container 1 having the lid I could see a big difference. It was also found that the tensile strength of the first test piece X gradually increases as the friction angle alpha increases, while the tensile strength of the second test piece Y gradually decreases as the friction angle alpha increases.

17B, when the frictional angle? Is set to about 72 degrees close to the diagonal line of the butt joint J, the tensile strengths of the first test piece X and the second test piece Y are the closest, It was found that the tensile strength of the first test piece X exceeded the tensile strength of the second test piece Y when the angle? It was also found that the unbalance in the tensile application of the first test piece X and the second test piece Y was substantially reduced when the friction angle alpha was set within the range of 72 DEG +/- 20 DEG.

[Example 2]

In the second embodiment, as shown in Fig. 18 (a), the container 1A having a lid which is square in plan view was tested. The material used is equivalent to that of Example 1. The aspect ratio (aspect ratio) of the butted portion J1 is 1: 1.

In Example 2, five test specimens were prepared and frictional pressure welding processes were performed by setting the frictional angle? (The angle from the center line C1 to the reference line C3) at 0 deg., 15 deg., 45 deg., 75 deg., And 90 deg. . A region including the center line C1 and a region including the center line C2 were collected and subjected to a tensile test at the butt portion J1 of the container 1A provided with the lid after the friction welding process. The test piece of the area including the center line C1 is referred to as a first test piece X and the test piece of a region including the center line C2 is referred to as a second test piece Y. [

18 (b) is a graph showing the relationship between the friction angle and the tensile strength in Example 2. Fig. When the friction angle? Is 0 °, it is found that the strength of the first test piece X is about 0 N / mm 2, while the strength of the second test piece Y is about 80 N / mm 2. On the other hand, when the friction angle α is 90 °, the strength of the first test piece X is about 78 N / mm 2, whereas the strength of the second test piece Y is about 0 N / mm 2. That is, when the frictional angle? Is set to 0 or 90 degrees, that is, the reference line C3 is made parallel to the extending direction of one side of the butted portion J1, the butt portion J1 ), It was found that the tensile strength was greatly different. It was also found that the tensile strength of the first test piece X gradually increases as the friction angle alpha increases, while the tensile strength of the second test piece Y gradually decreases as the friction angle alpha increases.

18B shows that the tensile strengths of the first test piece X and the second test piece Y are the closest to each other when the frictional angle? Is set at 45 degrees which overlaps the diagonal line of the butt joint J1 there was. It was also found that the unevenness of the tensile strengths of the first test piece X and the second test piece Y was substantially small when the friction angle alpha was set within the range of 45 DEG +/- 30 DEG.

19 is a cross-sectional view of a butt portion in each condition of Example 2; 19, when the friction angle is 0 ° in the second embodiment, the first test piece X (the portion in which the rubbing direction and the extending direction of the side wall portion 12 are orthogonal to each other) and the second test piece Y And the extending direction of the side wall portion 12 are parallel to each other). This is considered to be because the frictional heat generated at the second test piece Y is larger than the first test piece X when the frictional angle is 0 °. On the other hand, when the friction angle is 45 degrees, it can be seen that the first test piece X and the second test piece Y are in substantially the same bonded state.

[Example 3]

In the third embodiment, the container 1B having the lid according to the third embodiment shown in Figs. 12 and 13 and the container 1C having the lid according to the fourth embodiment shown in Fig. , And their pressure drop rates were measured.

In Example 3, as shown in Fig. 20, six specimens having different conditions (specimens A to F) were prepared. As shown in Figs. 12 and 13, the test bodies A to C each have a rectangular shape in plan view as viewed from the top in the plan view of the body portion 2 and the lid portion 3. Fig. On the other hand, as shown in Fig. 14, the test pieces D to F show a square shape in plan view of the main body portion 2 and the lid portion 3 in plan view. The wall thickness T1 was set to 1.5 mm in all of the specimens A to F.

For the specimens A and D, the radius of curvature R of the chamfer 31 was set to 0.1 mm (slit chamfering). The ratio of the radius of curvature R to the wall thickness T1 of the specimens A and D is 7%.

In the specimens B and E, the radius of curvature R of the chamfered portion 31 was set to 3.0 mm. The ratio of the radius of curvature R to the wall thickness T1 of the specimens B and E is 200%.

In the specimens C and F, the radius of curvature R of the chamfered portion 31 was set to 5.0 mm. The ratio of the curvature radius R to the wall thickness T1 of the specimens C and F is 333%.

In the test bodies A to F of Example 3, the main body portion 2 was formed of an aluminum alloy A6063-T5 (JIS). JIS: A6063 is an alloy consisting of 0.20 to 0.60% Si, 0.35% or less of Fe, 0.10% or less of Cu, 0.10% or less of Mn, 0.45 to 0.90% ; 0.10% or less; and Al (the remaining amount). T5 refers to a product obtained by artificially aging after cooling from a high-temperature processing in a heat treatment.

In the specimens A to F of Example 3, the lid portion 3 was formed of aluminum A1050-H112 (JIS). JIS: A1050 is an alloy containing at most 0.25% of Si, at most 0.40% of Fe, at most 0.05% of Cu, at most 0.05% of Mn, at most 0.05% of Mg, at most 0.05% %, Al: 99.50% or more. H112 means that the mechanical properties are guaranteed in the state of manufacture without adding active working hardening.

As shown in Fig. 17A, the frictional angle of the frictional stirring process of the test bodies A to C is set such that the center line C1 parallel to the short side of the butt joint J2 is 0 DEG and the base line of the friction angle is 0 °, 15 °, 45 °, 75 ° and 90 °, and friction welding was performed at respective friction angles.

18A, the center line C1, which is parallel to one side of the butted portion J2, is set to 0 DEG and the reference lines of the friction angle are set to 0 DEG and 15 DEG, respectively, in the friction welding process of the test bodies D to F, °, 45 °, and 90 °, and friction welding was performed at the respective friction angles.

The pressure reduction rate means the rate of pressure reduction from the step of supplying air from a hole formed in a part of a container provided with a manufactured lid and shutting off the air. In this embodiment, a hole is opened in a part of a container provided with a lid, air is supplied through the hole at a distance of 500 cm, and when the internal pressure of the container provided with the lid is 100 Was measured. The measurement time was set to a maximum of 60 seconds, and when the internal pressure did not reach 100 kPa even after exceeding 60 seconds, the internal pressure at the elapse of 60 seconds was measured.

The rate of pressure decrease (㎪ / sec) is expressed by the following formula (1).

Pressure decrease rate = (P _{0 -} P _min ) / t (Equation 1)

P ₀ : Initial pressure (500 ㎪)

P _min : Minimum pressure

t: Time from when the pressure supply is cut to when the minimum pressure is reached

In other words, the lower the pressure decreasing rate is, the higher the watertightness and the airtightness become.

As shown in Fig. 21 (a), in the test bodies A to C, when the frictional angle is set to 0 deg., The pressure decrease rate of the container 1B having the lid is the highest and the pressure decrease rate decreases as the frictional angle increases , And when the friction angle is 45 degrees, the rate of pressure decrease is the lowest. Further, as the frictional angle is set larger than 45 degrees, the rate of pressure decrease is increased. That is, it was found that the closer the friction angle is to 45 °, the higher the watertightness and airtightness. Therefore, it is preferable to set the friction angle (the angle formed by one side of the butted portion J2 and the reference line) to 35 to 55, more preferably to 40 to 50, and to 45 Is most preferable.

As shown in Fig. 21 (b), as the frictional angle approaches 45 deg., The watertightness and airtightness of the container 1C with the lid become higher, and the frictional angle is set to 45 deg. , Watertightness and airtightness were the highest. Therefore, it is preferable to set the friction angle (the angle formed by one side of the butted portion J2 and the reference line) to 35 to 55, more preferably to 40 to 50, and to 45 Is most preferable.

21A and 21B, regardless of the plane shape (aspect ratio of the rectangular shape in plan view) of the body portion 2 and the lid portion 3, the friction angle was 45 degrees It can be seen that the pressure decreasing rate of the containers 1B and 1C provided with the lid is the lowest, that is, the watertightness and the airtightness are the highest. This is considered to be because the balance of the degree of adhesion at each portion of the butt joint J2 in the friction welding process is improved by setting the friction angle to 45 degrees. Further, it was found that the magnitude of the radius of curvature R of the chamfered portion 31 did not affect the rate of pressure decrease.

From the above results, the relationship between the bonding strength and the friction angle and the relationship between the watertightness and the airtightness and the friction angle will be examined. In the following discussion, a container 1C having a lid shown in Fig. 12 (hereinafter referred to as a "rectangular container") and a container 1C having a lid shown in Fig. 14 Quot; container ") are exemplified, and the dimensions of each container and the conditions of frictional pressing are assumed to be based on the conditions shown in Fig.

≪ Relationship between bonding strength and friction angle >

As shown in Fig. 23A, when the reference line C3 is set to be parallel to the diagonal line of the rectangular cross section in a plan view and friction welding is performed along the reference line C3 in the rectangular container, The area of the intermittent friction portion becomes equal. According to such a joining method, since the frictional heat generated at each joining portion becomes uniform, it is considered that the unevenness of joining strength is eliminated. Here, as shown in FIG. 23 (b), the intermittent friction portion refers to a portion of the abutting portion between the members that is intermittently exposed to the atmosphere at the time of friction welding, and when the area of the intermittent friction portion is large, The bonding strength tends to decrease. In Fig. 23 (b), the portion indicated by the hatch is the intermittent friction portion.

24 (a) shows the result of calculation of the relationship between the area of the intermittent frictional portion and the frictional angle in the case of friction welding of the main body portion and the lid in a rectangular container (the aspect ratio of the long side and the short side is 3: 1) . As is clear from this result, in the friction angle corresponding to the diagonal line of the rectangular shape viewed from the plane, the area S1 of the intermittent frictional portion at the long side (the area of the region parallel to the long side of the intermittent frictional portion) The area S2 of the intermittent frictional portion at the sides becomes equal to the area (the area of the region parallel to the short side of the intermittent frictional portion). In other words, it is considered that the frictional heat generated at each joint portion becomes uniform in the friction angle corresponding to the diagonal line of the rectangular shape in plan view, thereby eliminating the unevenness of the joint strength.

Also, as shown in Fig. 24 (b), even in the case of a square container, in the same manner as in the rectangular container, the friction angle corresponding to the diagonal line of the rectangular shape in plan view, The area of the intermittent frictional portion on the other side perpendicular to the center of rotation is equal.

<Relationship between water tightness and airtightness and friction angle>

As shown in Fig. 25, when the reference line C3 is set to be parallel to the diagonal line of the rectangular cross section in plan view and friction welding is performed along the reference line C3, the wear distance travels at each joint portion becomes uneven, And the airtightness is lowered. That is, the abrasive wear distance L1 in the portion a shown in Fig. 25 and the abrasion wear distance L2 in the b portion are different from each other. Here, the abrasive wear distance refers to a distance at which the wear (metal abrasion) can move at the interface between the main body 2 and the lid 3 during friction welding, . 32 (b), since the friction direction is set to be parallel to the long side of the side wall portion 104 (friction angle = 90 degrees), the wear distance L3 in the portion c is The wear distance L4 in the portion d is equal to the length of the long side of the side wall portion 104. In this case, When the distance of movement of the abrasive powder becomes long, the abrasion powder (metal debris) tends to remain on the abutting surface, so that the hermeticity of the abutting surface deteriorates.

26 (a) shows the result of calculation of the relationship between the wear distance and the friction angle when friction welding is applied to the main body of the rectangular container (the aspect ratio of the long side and the short side is 3: 1) and the lid . As is evident from this result, regardless of the aspect ratio of the rectangular shape in plan view, at the friction angle of 45 degrees, the wear distance traveled on the long side and the wear distance traveled on the short side were equal It becomes. That is, at the friction angle of 45 degrees, the discharge property of the abrasion component (metal debris) at each joint portion becomes uniform, and it is considered that the imbalance in the degree of adhesion of the joint surface is eliminated.

26 (b), it is a matter of course that even when the container is a square container, at a friction angle of 45 degrees, the distance of wear and tear on one side and the distance of wear on the other side perpendicular to the side .

Industrial Applicability As described above, according to the present invention, it is possible to reduce the unevenness of the strength at the joint portions of the container having the lid and to improve the watertightness and airtightness of the container provided with the lid. A manufacturing method can be provided.

[Example 4]

Next, a fourth embodiment of the present invention will be described. Six specimens (specimens G, H, I, K, L and M) of the first metal member 102 and the second metal member 103 were prepared and the size, Conditions and the like were changed, and the bonding method described above was carried out for each test piece. The pressure decrease rate before and after the welding process was measured for each test specimen. In addition, the test piece M was subjected to only the welding process without performing the friction welding process, and the pressure decrease rate was measured.

As shown in Fig. 27, the test bodies G and H were joined to each other with short-length metal members (the first metal member 102 and the second metal member 103). As shown in Fig. 28, the test bodies K to M were joined to each other with the metal members (the first metal member 102 and the second metal member 103) longer than the test bodies G and H. The unit of dimension line is mm.

As shown in Fig. 31, the material of the first metal member 102 of the test body G is JIS: A6063. The material of the first metal member 102 of the test bodies H to M is JIS: A1050.

The second metal member 103 of the test bodies G to M was made of JIS: ADC12 (Cu: 1.5 to 3.5%, Si: 9.6 to 12.0%, Mg: 0.3% 0.5% or less of Ni, 0.5% or less of Ti, 0.3% or less of Ti, 0.2% or less of Pb, or 0.2% or less of Sn, and the balance of Al).

In the friction process relating to the friction welding process between the test pieces I and K, the test was performed by increasing the frictional load of the test piece K and increasing the friction time.

In the welding process on the specimens G and H, welding was carried out under the conditions shown in Fig. 29 (a) using a low-output YAG laser welding apparatus. In the welding process for the specimens I and K, welding was performed under the conditions shown in Fig. 29 (b) using a fiber laser welding apparatus. In the welding process with respect to the specimens L and M, welding was performed under the condition of FIG. 29 (c) using a high-output YAG laser welding apparatus.

Fig. 30 (a) is a schematic sectional view of a sound portion after the friction welding process of the test piece G. Fig. On the other hand, Fig. 30 (b) is a schematic cross-sectional view of a portion including bonding defects after the friction welding process of the test piece G. Fig. 30 (a) and 30 (b), burrs P are generated on the inner side surface and the outer side surface of the side wall portion 112, respectively. 30 (a), the butt joint J is neatly bonded. However, in FIG. 30 (b), it can be seen that the joint defect V is generated in the butt joint J. In the test piece G, it is considered that the burr P is generated only from the first metal member 102 because the second metal member 103 is harder than the first metal member 102.

30 (c) is a schematic sectional view after the welding process of the test piece G. Fig. 30 (c), the weld metal Q formed by the welding process covers the outer surfaces 112a and 122a near the butt joint J. Further, the burr P on the outer side of the side wall portion 112 is lost. Further, the junction defect (V) is also repaired.

As shown in Fig. 31, it was confirmed that the pressure drop rate was significantly lowered after the welding process than before the welding process was performed for all of the test bodies G to L. That is, the watertightness and the airtightness of the hollow container can be significantly improved by performing the welding process in addition to the friction welding process. Comparing the pressure drop rates of the test body M and the other test bodies, water tightness and airtightness can be improved by performing the friction welding process and the welding process, as compared with the case of performing only the welding process.

1: container with lid
1A: container with lid
2:
3:
4: box-shaped member
5: aperture
6: pin
11:
12:
15: upper surface (of the side wall portion)
16:
17: Body concave groove
18:
23: (on the cover)
24: Center face of cover
25: Inner concave groove portion of cover
26: Inner surface of lid
27: lid outer concave groove portion
28:
101: hollow vessel
102: first metal member
103: second metal member
111:
112:
112a: Outer side
121:
122:
122a: Outer side
J: abutment part
P: Burr
Q: Weld metal
T: Wall thickness

Claims (13)

A preparation step of preparing a main body part having a bottom part and a side wall part of a rectangular frame shape as viewed in a plane rising from the bottom part and a lid part closing the opening of the main part,
The upper surface of the side wall portion and the lower surface of the lid portion are abutted to each other to form a butted portion and the main body portion and the lid portion are linearly reciprocated relative to each other along a reference line inclined with respect to one side of the butt portion, And a frictional pressure welding step of heat-sealing the container. The container manufacturing method according to claim 1, wherein, in the friction welding process, when the abutted portion exhibits a square shape, the reference line is set within a range of +/- 30 degrees with respect to a diagonal line of the buttress portion Way. 2. The method according to claim 1, wherein, in the friction welding step, when the butt portion exhibits a rectangular shape, the reference line is set within a range of 占 0 占 with respect to the diagonal line of the butt portion. Way. The method according to claim 1, wherein in the friction welding step, the reference line is set to be parallel to the diagonal line of the buttress portion. The method of manufacturing a container with a lid according to claim 1, wherein an angle formed by one side of the butted portion and the reference line in the friction welding process is set to 35 ° to 55 °. The method of manufacturing a container with a lid according to claim 1, wherein an angle formed by one side of the butted portion and the reference line in the friction welding process is set to 40 ° to 50 °. The method of manufacturing a container with a lid according to claim 1, wherein an angle formed by one side of the butted portion and the reference line in the friction welding process is set to 45 degrees. 2. The semiconductor device according to claim 1, wherein on an upper surface of the side wall portion,
A main body concave groove portion formed in a rectangular frame shape when seen in a plan view,
A main body inner circumferential surface formed on the inside of the main body recessed groove portion,
An outer circumferential surface of the main body formed at a position lower than the inner circumferential surface of the main body is formed on the outer side of the main body recessed groove,
Wherein the inner peripheral surface of the main body and the lower surface of the lid portion abut against each other in the friction welding process. The electronic device according to claim 1,
A cover concave groove portion formed in a rectangular frame shape when seen in a plan view,
A cover inner circumferential surface formed on the inside of the cover concave groove portion,
A lid outer circumferential surface formed at a position higher than the lid inner circumferential surface is formed on an outer side of the lid recess concave groove portion,
Wherein the upper surface of the side wall portion and the lid inner circumferential surface abut against each other in the friction welding process. A friction welding step of frictionally pressing the first metal member and the second metal member,
And a welding step of welding the outer surfaces of the burrs formed on the outer surface of at least one of the first metal member and the second metal member using the filler as a filler material. The joining method according to claim 10, wherein a concave portion is formed on at least one of opposing surfaces of the first metal member and the second metal member. The joining method according to claim 10, wherein laser welding is performed in the welding step. The joining method according to claim 10, wherein the first metal member and the second metal member are made of aluminum or an aluminum alloy.

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