JP2019049027A - Method for manufacturing a tabular metallic component - Google Patents

Abstract

To provide a method for manufacturing a tabular metallic component without using a mold and capable of inhibiting deformation of a metal plate.SOLUTION: The present invention provides a method for manufacturing a tabular metallic component formed with a plurality of pin-like projections 3 on a principal surface. The method for manufacturing a tabular metallic component comprises a molding step (step S1) that molds the plurality of pin-like projections 3 using a three-dimensional molding device on a principal surface of a metal plate whose principal surface is greater in area than a tabular metallic component 1, and a blanking step (step S2) that blanks a tabular metallic component 1 out of the metal plate 4 on which the plurality of pin-like projections 3 are molded. In the molding step (step S1), on the principal surface of the metal plate 4, the plurality of pin-like projections 3 are molded in each of a plurality of spaced regions 11 and in the blanking step (step S2), the tabular metallic components 1 are blanked out of the respective ones of the plurality of regions 11.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a method of manufacturing a plate-like metal member.

  As a method of manufacturing a plate-like metal member, a method of injecting a molten metal into a mold is known.

  Patent Document 1 discloses a method of injecting a molten metal into a mold and manufacturing a metal member having a pin-like protrusion.

Japanese Patent Application Publication No. 08-125075

  In the method of manufacturing a metal member disclosed in Patent Document 1, since a mold is used, it is necessary to manufacture the mold. Therefore, it is necessary to manufacture a mold prior to manufacturing a plate-like metal member. On the other hand, when using a three-dimensional shaping apparatus, a plate-shaped metal member can be manufactured without using a mold. Therefore, when manufacturing a plate-like metal member using a three-dimensional shaping apparatus, it is not necessary to manufacture a casting_mold | template. Therefore, the material and electric power which are required when manufacturing a casting_mold | template can be suppressed.

  However, when manufacturing a plate-like metal member using a three-dimensional modeling apparatus, the following problems generate | occur | produce. Hereinafter, the problem of the present invention will be described with reference to FIG.

  FIG. 9 is a perspective view for explaining the configuration of the conventional plate-like metal member 100. As shown in FIG. As shown in FIG. 9, the plate-like metal member 100 includes a main body portion 102 and a plurality of pin-like protrusions 103.

  The main body portion 102 is a plate made of metal. A plurality of pin-shaped projections 103 are provided on the main surface of the main body portion 102 using a three-dimensional modeling apparatus.

  When providing the plurality of pin-like projections 103, a metal powder layer filled with metal powder is formed on the main surface of the main body portion 102. And a laser etc. are irradiated to the formed metal powder layer, and a part of metal powder is sintered. Thereafter, a metal powder layer is further formed on the sintered metal powder layer. By repeating forming and sintering the metal powder layer, the plurality of pin-like protrusions 103 are shaped on the entire main surface of the main body portion 102. At this time, since the metal powder layer is irradiated with a laser or the like, the temperature becomes high. Then, the heat of the metal powder layer may be transmitted to the main body portion 102, and the main body portion 102 may be deformed. When the main body portion 102 is deformed, it becomes difficult to form the plurality of pin-like projections 103 at predetermined positions.

  This invention is made in view of the above background, and an object of this invention is to provide the manufacturing method of the plate-shaped metal member which can suppress a deformation | transformation of a metal plate, without using a casting_mold | template.

  One aspect of the present invention for achieving the above object is a method for manufacturing a plate-like metal member having a plurality of pin-like projections formed on the main surface, and the area of the main surface is larger than that of the plate-like metal member. A forming step of forming the plurality of pin-like projections on the main surface of the metal plate using a three-dimensional forming apparatus, and punching out the plate-like metal member from the metal plate on which the plurality of pin-like projections are formed And forming a plurality of pin-like projections on each of a plurality of spaced areas on the main surface of the metal plate in the forming step, and in the punching step, forming each of the plurality of areas. Punching out the plate-like metal member from the above.

  In the method of manufacturing a plate-like metal member according to the present invention, a plurality of pin-like protrusions are formed on the main surface by using a three-dimensional shaping apparatus for each of a plurality of spaced areas, The members are being punched out. Therefore, deformation of the metal plate due to heat can be suppressed as compared to the case where a plurality of pin-like protrusions are formed on the entire main surface of the main body portion of the plate-like metal member.

  ADVANTAGE OF THE INVENTION According to this invention, the manufacturing method of the plate-shaped metal member which can suppress a deformation | transformation of a metal plate can be provided, without using a casting_mold | template.

It is a perspective view of a plate-like metal member concerning an embodiment. It is a flowchart which shows the manufacturing method of the plate-shaped metal member which concerns on embodiment. It is a top view of a metal plate. It is a perspective view of a metal plate. It is a perspective view of a metal plate in which a plurality of pin-like projections were formed. It is sectional drawing of a punching apparatus. It is sectional drawing of a punching apparatus. It is a perspective view of a metal plate. It is a perspective view of the conventional plate-like metal member.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the present invention is not limited to the following embodiments. Further, in order to clarify the explanation, the following description and the drawings are simplified as appropriate.

First, with reference to FIG. 1, the plate-shaped metal member 1 manufactured using the manufacturing method of the plate-shaped metal member which concerns on this Embodiment is demonstrated.
FIG. 1 is a perspective view of a plate-like metal member 1 according to the present embodiment. As shown in FIG. 1, the plate-like metal member 1 includes a main body 2 and a plurality of pin-like protrusions 3, and is a plate manufactured using the method of manufacturing a plate-like metal member according to the present embodiment. Metal members. The plate-like metal member 1 is suitable, for example, as a heat sink.

  As a matter of course, the right-handed system xyz orthogonal coordinates shown in FIG. 1 and the other drawings are convenient for describing the positional relationship of components. Usually, the positive z-axis direction is vertically upward, and the xy plane is a horizontal plane, which is common to the drawings.

  As shown in FIG. 1, the main body 2 of the plate-like metal member 1 is a plate-like member made of metal. The main body 2 is made of, for example, an aluminum alloy. In addition, a plurality of pin-shaped protrusions 3 are provided on the main surface on the z-axis positive direction side of the main body 2. The plurality of pin-shaped protrusions 3 are, for example, cylinders similar to the main body 2 and made of an aluminum alloy.

  The shape and arrangement of the plurality of pin-like projections 3 are not particularly limited, but in the example of FIG. 1, they are aligned in the X-axis direction and the Y-axis direction on the main surface of the main body 2. That is, the plurality of pin-shaped protrusions 3 are arranged in a matrix on the main surface of the main body 2. Since the plurality of pin-shaped protrusions 3 are provided on the main surface of the main body 2, the surface area of the plate-like metal member 1 is increased, and the heat dissipation can be enhanced.

  Next, with reference to FIG. 2, the manufacturing method of the plate-shaped metal member which concerns on this Embodiment is demonstrated. FIG. 2 is a flowchart showing a method of manufacturing the plate-like metal member according to the present embodiment.

  First, a forming step (step S1) of forming the plurality of pin-shaped protrusions 3 on the main surface of the metal plate 4 is performed. And the punching process (step S2) which pierces the plate-like metal member 1 is performed from the metal plate 4 in which the several pin-shaped protrusion 3 was modeled.

Next, with reference to FIGS. 3-5, a modeling process (step S1) is demonstrated in detail.
FIG. 3 is a top view of the metal plate 4. FIG. 4 is a perspective view of the metal plate 4. FIG. 5 is a perspective view of the metal plate 4 in which a plurality of pin-like protrusions 3 are formed. As shown in FIG.3 and FIG.4, the metal plate 4 is a metal plate parallel to xy plane, for example, is comprised using aluminum alloy.

  As shown in FIG. 5, in the forming step (step S <b> 1), the plurality of pin-shaped protrusions 3 are formed for each of the plurality of areas 11 of the metal plate 4 using a three-dimensional forming device. As shown in FIG. 3, the plurality of regions 11 are spaced apart and do not touch each other.

  In the three-dimensional modeling apparatus, first, a metal powder layer filled with metal powder is formed on the main surface on the z-axis positive direction side of the metal plate 4. And a laser etc. are irradiated to the formed metal powder layer, and a part of metal powder is sintered. Thereafter, a metal powder layer is further formed on the layer in which a part of the metal powder is sintered, and a laser or the like is irradiated to sinter a part of the metal powder. A plurality of pin-like projections 3 are shaped by repeating laminating and sintering metal powder in the z-axis positive direction.

  The metal powder irradiated with a laser etc. becomes high temperature. Then, the heat of the metal powder is transmitted to the metal plate 4. Here, since the area of the main surface of the metal plate 4 is larger than that of the plate-like metal member 1, deformation such as warpage does not easily occur even if heat is received by irradiation with a laser or the like.

  When performing a formation process (step S1), you may fix the metal plate 4 to a table (not shown) using the fixing tool 5. FIG. It is desirable that the fixing tool 5 be provided on the main surface of the metal plate 4 and outside the area 11. Since the metal plate 4 is fixed to the table, deformation of the metal plate 4 can be further suppressed when attempting to receive heat and deform.

  In addition, when a plurality of pin-shaped projections 3 are shaped using a three-dimensional shaping apparatus, it is not necessary to use a mold. Therefore, since it is not necessary to manufacture a mold, materials and electric power required for manufacturing a mold can be suppressed.

  By the way, when manufacturing the plate-shaped metal member in which several pin-shaped protrusions were formed using a casting_mold | template, a molten metal may be inject | poured unevenly into the cavity corresponding to several pin-shaped protrusions. Therefore, the plurality of pin-like protrusions may have uneven height. Therefore, in the case of manufacturing a plate-like metal member having a plurality of pin-like protrusions formed using a mold, it is necessary to finish grind the plurality of pin-like protrusions and make the heights of the plurality of pin-like protrusions uniform. There is. On the other hand, in the case of forming the plurality of pin-shaped protrusions 3 using the three-dimensional forming apparatus, it is not necessary to perform finish grinding since the heights of the plurality of pin-shaped protrusions 3 are uniform.

  Next, the punching step (step S2) will be described in detail with reference to FIG. 6 and FIG. 6 and 7 are cross-sectional views of the punching apparatus 6. As shown in FIG. 6, the punching apparatus 6 includes a punch 61, a plate press 62, and a die 63. 6 and 7 also show the plurality of pin-like protrusions 3 and the metal plate 4.

  In the punching step (step S2), the sheet metal member 1 is punched out of the metal plate 4 using the punching device 6. First, as shown in FIG. 6, the metal plate 4 on which the pin-like protrusions 3 are formed is placed such that the main surface on which the plurality of pin-like protrusions 3 are formed is in contact with the die 63. The die 63 has an opening having a shape corresponding to the main surface of the plate-like metal member 1. When the metal plate 4 is placed on the die 63, the region 11 is placed so as to abut the opening of the die 63.

  Then, the punch 61 is placed on the main surface of the metal plate 4 on which the plurality of pin-shaped protrusions 3 are not formed. As shown in FIG. 6, the punch 61 is placed on the area 11 of the metal plate 4. The shape of the surface of the punch 61 in contact with the metal plate 4 corresponds to the shape of the main surface of the plate-like metal member 1. Further, on the metal plate 4 placed on the die 63, a plate presser 62 is placed so as to surround the punch 61. The plate presser 62 has an opening having a shape corresponding to the main surface of the plate-like metal member 1. The punch 61 placed on the metal plate 4 is pushed toward the die 63 to punch out the plate-like metal member 1 from the region 11. Under the present circumstances, since the circumference | surroundings of the area | region 11 of the metal plate 4 are clamped using the board holding | suppressing 62 and the die | dye 63, the metal plate 4 does not deform | transform easily.

  Further, as shown in FIG. 7, the main surface of the metal plate 4 on which the plurality of pin-shaped projections 3 are not formed may be placed in contact with the die 63. At this time, for example, only the punch is in contact with the metal plate 4 and the plurality of pin-shaped projections 3 are not in contact with the punch 61. When the punch 61 placed in the area 11 is pushed toward the die 63, the plate-like metal member 1 can be punched out of the area 11 without being in contact with the plurality of pin-shaped projections 3.

  When punching the plate-like metal member 1 from the metal plate 4 as shown in FIG. 6 and FIG. 7, even if a backup type (not shown) is placed on the surface of the region 11 not in contact with the punch 61. good. Since the area 11 is held using the backup mold and the punch 61, when the sheet metal member 1 is punched from the metal plate 4, the sheet metal member 1 is not easily deformed.

  A plurality of pin-shaped projections 3 are formed on the main surface of the metal plate 4 for each of the plurality of regions 11. The plurality of regions 11 may be punched one by one as shown in FIGS. 6 and 7, or may be punched at one time using a die having a plurality of openings. In the case of punching out the plurality of areas 11 at one time, the time required for the punching step (step S2) of punching out the sheet metal member 1 from each of the plurality of areas 11 is shortened compared to the case of punching the plurality of areas 11 one by one. it can.

  By the way, in the case where the volume of the metal plate 4 is small, such as when the plate thickness is thin, the metal plate 4 is easily deformed when it is heated. Therefore, the metal plate 4 is easily deformed in the forming step (step S1). Therefore, as shown in FIG. 8, the metal plate 4 may be pre-warped in the opposite direction to the expected deformation. When the metal plate 4 is warped in advance, the metal plate 4 is deformed by the heat applied in the forming step (step S1), and the metal plate 4 becomes a plate without warpage. Therefore, when the volume of the metal plate 4 is small, the deformation of the metal plate 4 can be suppressed by bending the metal plate 4 in advance.

  In the method of manufacturing the plate-like metal member according to the present embodiment described above, the plate-like metal member 1 is punched out of the metal plate 4 after the plurality of pin-like protrusions 3 are formed on the main surface of the metal plate 4 Therefore, deformation of the metal plate can be suppressed without using a mold.

  The present invention is not limited to the above embodiment, and can be appropriately modified without departing from the scope of the present invention. For example, the plate pressing force may be increased by providing a projection on a portion of the plate presser 62 in contact with the metal plate 4 or a portion of the die 63 in contact with the metal plate 4. Further, the punch 61 and the backup type may be in contact with the metal plate 4 and the plurality of pin-shaped projections 3 so as to cover the plurality of pin-shaped projections 3.

DESCRIPTION OF SYMBOLS 1, 100 plate-like metal member 11 area | region 2, 102 main-body part 3, 103 pin-shaped protrusion 31 pin-shaped protrusion modeling position 4 metal plate 5 fixing tool 6 punching apparatus 61 punch 62 plate pressing 63 die

Claims (1)

It is a manufacturing method of the plate-like metal member by which a plurality of pin-like projections were formed in the principal surface,
Forming a plurality of the pin-like projections using a three-dimensional forming apparatus on the main surface of a metal plate having an area of the main surface larger than that of the plate-like metal member;
Punching out the plate-like metal member from the metal plate on which the plurality of pin-like protrusions are formed;
In the forming step, the plurality of pin-shaped projections are formed on a main surface of the metal plate for each of a plurality of spaced areas,
In the said punching process, the manufacturing method of the plate-shaped metal member which pierces the said plate-shaped metal member from each of these several area | regions.

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