JP5342858B2 - Stamp forming method and apparatus - Google Patents

Description

  The present invention relates to a stamp forming method and apparatus for obtaining a joined molded product by joining a semi-solid slurry and a workpiece to each other.

  A so-called cast-in is known as one of the techniques for joining different metal materials having different compositions to obtain a joined molded product. In this method, after a workpiece (casting material) is accommodated in a mold, the molten metal is filled and solidified. The molten metal is solidified according to the shape of the cavity of the mold and is joined to the workpiece at this time.

  Another method includes injection molding using a semi-solid slurry. That is, the work is accommodated in a mold, and after the mold is clamped, a semi-solid slurry is injected to form the semi-solid slurry into a shape corresponding to the shape of the cavity, and the semi-solid slurry is joined to the work. (See, for example, Patent Document 1). Here, as described in Patent Document 1, the “semi-solidified slurry” refers to a slurry in a solid-liquid coexistence state. In general, a semi-solid slurry is soft enough to exhibit fluidity only when pressurized.

  However, in any case, it is not easy to increase the bonding strength between different kinds of metal materials. The reason for this is presumed to be that an oxide film or the like is present at the bonding interface between the workpiece and the molten metal or semi-solid slurry.

  Therefore, in the invention described in Patent Document 2, an attempt is made to remove the oxide film on the surface of the workpiece by pressing the molten metal at the solid-liquid coexistence temperature against the workpiece when performing cast-in.

JP 2001-58253 A Japanese Patent Laid-Open No. 10-99961

  In molding the semi-solid slurry, injection molding is generally employed. When the semi-solid slurry is an Al alloy or the like, since the semi-solid slurry is high temperature, an oxide film is easily formed on the surface. For this reason, it is not easy to ensure the wettability with respect to the workpiece, and eventually, it is not easy to increase the bonding strength between the workpiece and the semi-solidified slurry.

  In addition, all of the conventional techniques described in the cited documents 1 and 2 are designed to form only a semi-solid slurry. For this reason, after press-molding the workpiece in advance, it is necessary to transport the molded workpiece to a casting mold. That is, since three steps of press molding, conveyance, and cast-in must be performed, it takes a long time to obtain a bonded molded product.

  The present invention has been made to solve the above-described problems, and can provide a stamp molding method capable of increasing the bonding strength between the workpiece and the semi-solidified slurry and shortening the time until a bonded molded product is obtained. An object is to provide such a device.

In order to achieve the above object, the present invention is a stamp molding method for obtaining a joint molded product by joining a semi-solid slurry and a workpiece to each other,
Supporting the workpiece with a first mold;
Placing the semi-solid slurry on one end surface of the workpiece;
Forming a space surrounding the semi-solidified slurry by one end surface of the workpiece, the second mold and the slurry outflow prevention member;
Pressing the semi-solid slurry with the second mold and sliding on the end face of the workpiece;
Have
The slurry outflow prevention member blocks the semi-solidified slurry that is pressed and flows by the second mold.

  In injection molding, the semi-solid slurry only flows mainly, and its surface layer is not sufficiently pressed against the workpiece. Therefore, the semi-solid slurry is not crushed and the surface layer is not cracked.

  On the other hand, according to the present invention that performs stamp forming, the semi-solid slurry is pressed against the end face of the workpiece. Here, the surface layer of the semi-solid slurry has a higher solid phase ratio than the inside. That is, in the present invention, the surface layer having a high solid phase ratio is in sliding contact with the end surface of the workpiece. Thereby, the oxide film generated on the surface layer is efficiently removed.

  In the present invention, in the above process, the surface layer of the semi-solid slurry pressed by the slurry pressing mold, that is, the oxide film is cracked. This is because the semi-solid slurry is crushed.

  And the slurry which is not oxidized flows out outside through this crack, and starts a flow along the end face of a work. The non-oxidized slurry wets and adheres well to various metal materials, and solidifies with the subsequent cooling to form a molded body. As a result, an oxide film is not formed between the workpiece and the slurry, and therefore, a bonded molded article having excellent bonding strength can be obtained by mutual diffusion during cooling.

  Furthermore, it is preferable to include a step of forming the workpiece by pressing the workpiece with a third mold. In this case, both the semi-solid slurry and the workpiece can be formed by the same stamp forming apparatus. Therefore, the capital investment is reduced and it is possible to efficiently produce a bonded molded product in a short time.

Further, the present invention is a stamp forming apparatus for obtaining a joined molded product by joining a semi-solid slurry and a workpiece to each other,
A first mold for supporting the workpiece;
A second mold for pressing the semi-solid slurry placed on one end surface of the workpiece;
A slurry outflow prevention member that forms a space surrounding the semi-solid slurry with one end surface of the workpiece and the second mold;
Have
The slurry outflow prevention member blocks the semi-solid slurry that flows while being pressed by the second mold.

  By setting it as such a structure, as above-mentioned, the joining molded product which is excellent in joining strength can be obtained easily.

  If a third die for pressing the workpiece is further provided and the workpiece is molded by the third die, both the semi-solid slurry and the workpiece can be molded by the same stamp molding apparatus. It becomes like this. For this reason, it becomes possible to produce a bonded molded product efficiently in a short time. In addition, the capital investment is reduced, which is advantageous in terms of cost.

The slurry outflow prevention member and the third mold may be the same member or separate members.

  According to the present invention, the semi-solid slurry is pressed by the slurry pressing mold, and thereby the oxide layer is removed by sliding the surface layer having a high solid phase ratio in the semi-solid slurry to the end surface of the workpiece, and the semi-solid slurry The surface layer (oxide film) is cracked and is not oxidized, and for this reason, the slurry that wets and adheres well to various metal materials is discharged to the outside to be brought into sliding contact with the workpiece. The slurry that is in sliding contact and is in close contact with the work is solidified with the subsequent cooling to form a molded body. As a result, an oxide film is not formed between the workpiece and the slurry, and therefore, a bonded molded article having excellent bonding strength can be obtained by mutual diffusion during cooling.

  Furthermore, by including the step of forming the workpiece with the third mold, both the semi-solid slurry and the workpiece can be formed with the same stamp forming apparatus. Therefore, it is possible to efficiently produce a bonded molded product in a short time, and the capital investment is reduced.

  DESCRIPTION OF EMBODIMENTS Hereinafter, a stamp forming method according to the present invention will be described in detail with reference to the accompanying drawings by giving preferred embodiments of casting in relation to a stamp forming apparatus for carrying out the stamp forming method.

  FIG. 1 is a schematic front longitudinal sectional view of a main part of a stamp forming apparatus according to a first embodiment of the present invention. The stamp forming apparatus 10 includes a base 12, a fixed die 14 positioned and fixed to the base 12, a work support die 16 (first type) disposed so as to surround the fixed die 14, and a half It has a slurry pressing mold 18 (second mold) for pressing the solidified slurry SL and a workpiece pressing mold 20 (third mold) for pressing the workpiece W. In addition, as will be described later, the workpiece pressing die 20 also serves as a slurry outflow prevention member that dams the flowing semi-solid slurry SL. In the first embodiment, examples of the material of the workpiece W and the semi-solid slurry SL include A5052 and AC4CH (both JIS), which are aluminum alloys, but are not particularly limited thereto.

  In this case, a molding convex portion 24 is formed so as to protrude from the shoulder portion 22 at the distal end portion of the fixed die 14 provided on the substantially flat base 12. As will be described later, the workpiece W is formed following the forming convex portion 24.

  Each of the work support molds 16 disposed with the fixed die 14 interposed therebetween can be displaced along the vertical direction under the action of the rods 26a and 26b constituting the cylinder devices 25a and 25b. That is, as the rods 26a and 26b move forward or backward, the workpiece support die 16 fixed to the tips of the rods 26a and 26b via the pedestal 30 is raised or lowered.

  The slurry pressing mold 18 and the workpiece pressing mold 20 are provided on a support plate 34 that extends to face the base 12. Among these, the slurry pressing mold 18 is disposed at a position so as to be sandwiched between the workpiece pressing molds 20 and is positioned and fixed with respect to the support board 34.

  In this case, the lower end surface of the slurry pressing mold 18 is curved. Therefore, the semi-solid slurry SL is formed into a shape corresponding to the shape of the curved lower end surface.

  Rods 36a and 36b constituting cylinder devices 35a and 35b are suspended from the support plate 34, and a pedestal 38 is provided at the lower ends of the rods 36a and 36b. The workpiece pressing mold 20 is supported by these pedestals 38 so as to face the workpiece W.

  In this case, the applied pressure of the cylinder devices 35a and 35b is set larger than that of the cylinder devices 25a and 25b.

  A step 42 is formed in the work pressing mold 20. The shape of the step portion 42 corresponds to the shape of the molding convex portion 24. That is, the edge part of the step part 42 is substantially opposed to the edge part of the molding convex part 24.

  The support board 34 can be displaced along the vertical direction under the action of an elevator (not shown) (for example, a hydraulic cylinder). In other words, the support board 34 moves up and down so as to move away from or approach the base 12.

  In this case, the semi-solid slurry SL is set to a size that is separated from each of the workpiece pressing dies 20. Therefore, when the mold closing is performed, the semi-solid slurry SL is accommodated in a space 44 formed by the workpiece W, the workpiece pressing die 20 and the slurry pressing die 18 as shown in FIG.

  The stamp forming apparatus 10 according to the first embodiment is basically configured as described above. Next, its operational effects will be described in relation to the stamp forming method according to the present embodiment.

  Stamp molding using the stamp molding apparatus 10 is performed as follows.

  First, as shown in FIG. 1, each end of a substantially flat workpiece W is placed on the upper end surface of the workpiece support die 16 so as to straddle the fixed die 14. Thereby, the workpiece W is supported by the workpiece support mold 16. At this point, all of the rods 26a, 26b, 36a, 36b are in an expanded state.

  Next, the semi-solid slurry SL is placed at a predetermined position on the upper end surface of the workpiece W. Here, the semi-solid slurry SL is manufactured in advance in another mold apparatus and taken out in a solid-liquid coexistence state. Therefore, the semi-solid slurry SL only placed on the workpiece W hardly flows. In addition, on the surface of the semi-solidified slurry SL, there is an oxide film as a so-called passivation formed by oxidizing the surface with oxygen in the atmosphere.

  Next, the lifting device (not shown) is energized, whereby the support plate 34 is lowered toward the base 12. Following this, the slurry pressing die 18 and the workpiece pressing die 20 are also lowered, and first, the workpiece pressing die 20 in this comes into contact with the workpiece W as shown in FIG. At this time, a space 44 is formed by the upper end surface of the workpiece W, the side portion of the workpiece pressing die 20, and the curved lower end surface of the slurry pressing die 18, and the semi-solid slurry SL is accommodated in the space 44.

  When the support board 34 is further lowered, the middle part of the workpiece W is pressed by the step 42 of the workpiece pressing mold 20 as shown in FIG. Under this pressing force, the rods 26a and 26b are compressed. As is understood from the above, the cylinder devices 35a and 35b have a larger applied pressure than the cylinder devices 25a and 25b.

  As the rods 26 a and 26 b are compressed, the work support die 16 is lowered toward the base 12. As a result, the upper end surface of the workpiece support die 16 and the shoulder portion 22 of the fixed die 14 are substantially flush with each other, and the portion of the workpiece W pressed by the step 42 of the workpiece pressing die 20 is used for forming the fixed die 14. The shape of the convex portion 24 is followed. Thereby, the shaping | molding of the workpiece | work W is complete | finished.

  Thereafter, the support plate 34 is further lowered. As a result, the rods 36a and 36b receive a reaction force from the workpiece support mold 16, and as a result, as shown in FIG. 4, the rods 36a and 36b are also compressed.

  Thereby, the lower end surface of the slurry pressing mold 18 presses the semi-solid slurry SL. The pressed semi-solid slurry SL starts to flow radially around the pressed location. Of course, the flowing semi-solid slurry is finally blocked by the side of the work pressing mold 20. As a result, the semi-solid slurry is prevented from flowing out of the space 44.

  The surface layer of the semi-solid slurry SL has a higher solid phase ratio than the inside. For this reason, the surface layer of the semi-solid slurry SL is in sliding contact with being pressed against the workpiece W. By this sliding contact, the oxide film present on the surface layer of the semi-solid slurry SL is removed.

  Further, during the above-described flow, the semi-solid slurry SL is diffused while being slidably contacted with the work surface while being expanded in diameter by pressing from the slurry pressing die 18, in other words, being crushed. Along with the crushing and diffusion, the surface layer (oxide film) of the semi-solid slurry SL is broken and cracks are generated, and the internal slurry begins to flow out through the cracks. This slurry is not oxidized, and therefore has good wettability with respect to the workpiece W, which is another kind of metal material.

  Thus, according to the first embodiment, the slurry having good wettability comes into contact with the upper end surface of the workpiece W. That is, the workpiece W is wetted by the slurry and is in close contact. If the slurry is cooled and solidified in this state to form a molded body P, a bonded molded product can be obtained by mutual diffusion during cooling.

  In the joint molded product thus obtained, the joint strength between the workpiece W and the molded body P is high. As understood from the above, since the workpiece W and the slurry are joined while avoiding the formation of an oxide film between the workpiece W and the slurry, the oxide film is interposed between the workpiece W and the molded body P. This is because intervening is avoided.

  Moreover, in the first embodiment, the molding for the workpiece W and the molding for the semi-solid slurry SL can be performed by the same stamp molding apparatus 10. For this reason, a junction molded product can be produced efficiently.

  What is necessary is just to raise a raising / lowering apparatus, when performing mold opening. When the support plate 34 is lifted away from the base 12 and the work pressing mold 20 and the slurry pressing mold 18 are separated from the fixed die 14 and the work supporting mold 16, the cylinder devices 25a, 25b, 35a, 35b are energized. The rods 26a, 26b, 36a, and 36b extend, whereby the work support mold 16 and the slurry pressing mold 18 are returned to their original positions (see FIG. 1).

  In the first embodiment, the work W is formed first and then the semi-solid slurry SL is formed. Conversely, the work W is formed after the semi-solid slurry SL is formed. Also good. This embodiment will be described below as a second embodiment.

  FIG. 5 is a schematic front longitudinal sectional view of an essential part of a stamp forming apparatus 50 according to the second embodiment of the present invention. In addition, the same referential mark is attached | subjected to the component same as the stamp shaping | molding apparatus 10 which concerns on 1st Embodiment, and the detailed description is abbreviate | omitted.

  The stamp forming apparatus 50 includes a base 12, a fixed die 14, a work support mold 16 (first mold), a slurry pressing mold 18 (second mold) for pressing the semi-solid slurry SL, and a workpiece W. It has a work pressing mold 20 (third mold) for pressing, among which the work support mold 16 is a rod that constitutes the cylinder devices 25a and 25b, like the stamp forming apparatus 10 according to the first embodiment. It is provided on a pedestal 30 supported by 26a and 26b.

  In this case, a through hole 52 is formed in the support plate 34 that supports the workpiece pressing die 20, and a rod 54 that constitutes a hydraulic cylinder (not shown) is passed through the through hole 52. The slurry pressing mold 18 is supported by a pedestal 56 provided at the lower end of the rod 54.

  Around the slurry pressing mold 18 in the pedestal 56, rods 58a and 58b constituting the cylinder devices 57a and 57b are installed so as to extend vertically downward. A substantially cylindrical slurry outflow prevention member 60 is disposed at the tip of the lower end of each of the rods 58a and 58b.

  Note that the pressurizing force of the cylinder devices 57a and 57b is set smaller than that of the cylinder devices 25a and 25b.

  In the above configuration, the support plate 34 moves up and down so as to separate or approach the base 12 under the action of a lifting device (not shown) (for example, a hydraulic cylinder or the like).

  Also in this case, the semi-solid slurry SL is set to a size that is separated from each of the slurry outflow prevention members 60. Accordingly, when the mold is closed, the semi-solid slurry SL is accommodated in a space 64 formed by the workpiece W, the slurry outflow prevention member 60, and the slurry pressing mold 18, as shown in FIG. .

  The stamp forming apparatus 50 according to the second embodiment is basically configured as described above. Next, its operational effects will be described in relation to the stamp forming method according to the present embodiment.

  Stamp molding using this stamp molding apparatus 50 is performed as follows.

  First, as shown in FIG. 5, each end portion of the substantially flat workpiece W is placed on the upper end surface of the workpiece support die 16 so as to straddle the fixed die, whereby the workpiece W is placed on the workpiece support die 16. Supported. At this point, all of the rods 26a, 26b, 58a, 58b are in an expanded state. Thereafter, a semi-solid slurry SL having an oxide film on the surface thereof is placed at a predetermined position on the upper end surface of the workpiece W.

  Next, the hydraulic cylinder (not shown) is energized to cause the rod 54 to move vertically downward. Following this, the slurry pressing die 18 and the slurry outflow prevention member 60 are lowered toward the workpiece W. To do. As a result, as shown in FIG. 6, the slurry outflow prevention member 60 contacts the work W, and a space 64 is formed by the upper end surface of the work W, the inner wall of the slurry outflow prevention member 60, and the curved lower end surface of the slurry pressing die 18. Then, the semi-solid slurry SL is accommodated in the space 64.

  When the rod 54 further advances (lowers), the rods 58a and 58b are first compressed as shown in FIG. This is because the applied pressure of the cylinder devices 57a and 57b is smaller than that of the cylinder devices 25a and 25b as described above.

  Almost simultaneously with the progress of the compression, the lower end surface of the slurry pressing mold 18 presses the semi-solid slurry SL. The pressed semi-solid slurry SL starts to flow radially around the pressed portion as in the first embodiment. At this time, the surface layer having a high solid fraction in the semi-solid slurry SL is pressed against the workpiece W to remove the oxide film, and the surface oxide film as the semi-solid slurry SL flows while being crushed. Is broken and the internal slurry begins to flow through the resulting cracks.

  That is, also in the second embodiment, the slurry is not oxidized, and therefore, the slurry having good wettability comes into contact with the upper end surface of the workpiece W. Accordingly, since the workpiece W is wetted and adhered well by the slurry, if the slurry is cooled and solidified in this state to form the molded body P, it is avoided that an oxide film is interposed between the workpiece W and the molded body P. Thus, a bonded molded article having good bonding strength is obtained by mutual diffusion during flow.

  Of course, the fluidized slurry is finally blocked by the inner wall of the slurry outflow prevention member 60. By this damming, the slurry is prevented from flowing out of the space 64.

  After joining the workpiece W and the molded product P (semi-solidified slurry SL) in this way, the workpiece W is then molded. Specifically, as shown in FIG. 8, the hydraulic cylinder is biased to retract (raise) the rod 54, thereby separating the slurry outflow prevention member 60 from the molded body P. After the separation, the cylinder devices 57a and 57b are energized and the rods 58a and 58b extend, whereby the slurry outflow prevention member 60 returns to the original position.

  Next, the lifting device (not shown) is energized, whereby the support plate 34 is lowered toward the base 12. The workpiece pressing die 20 that has moved down following this abuts against the workpiece W as shown in FIG.

  When the support plate 34 is further lowered, the end portion of the workpiece W is pressed by the workpiece pressing die 20 as shown in FIG. Under this pressing force, the rods 26a and 26b are compressed. At the same time, the molded body P may be surrounded by the slurry outflow prevention member 60.

As the rods 26 a and 26 b are compressed in this manner, the work support die 16 is lowered toward the base 12. As a result, the top surface of the workpiece support die 16 and the shoulder portion 22 of the fixed die 14 are substantially flush with each other, and the end portion of the workpiece W pressed by the step portion 42 of the workpiece pressing die 20 is formed on the fixed die 14. It is molded following the shape of the convex portion 24 for use. Thereby, the shaping | molding of the workpiece | work W is complete | finished.

  As described above, also in the second embodiment, the molding for the workpiece W and the molding for the semi-solid slurry SL can be performed by the same stamp molding apparatus 50. For this reason, a junction molded product can be produced efficiently.

  What is necessary is just to raise a raising / lowering apparatus and the rod 54 when performing mold opening. After the support plate 34 is lifted away from the base 12 and the work pressing mold 20 is separated from the fixed die 14 and the work support mold 16, the cylinder devices 25a and 25b are urged to extend the rods 26a and 26b, The work support mold 16 returns to the original position (see FIG. 5).

  In the first embodiment and the second embodiment described above, the case where the semi-solid slurry SL is placed in the substantially central portion of the workpiece W is described as an example. However, the placement position of the semi-solid slurry SL is as follows. It is not particularly limited to this, and may be an end portion of the workpiece W, for example. In this case, a part of the semi-solidified slurry SL may protrude from the workpiece W.

  Further, in both the first embodiment and the second embodiment, the stamp forming apparatuses 10 and 50 are configured including the work pressing mold 20 for forming the workpiece W. However, the stamp that omits the work pressing mold 20 is used. You may make it comprise a shaping | molding apparatus.

  Further, instead of the cylinder devices 25a, 25b, 35a, 35b, 57a, 57b, a coil spring and a telescopic rod that expands and contracts under the elastic action of the coil spring may be used.

It is a principal part general | schematic front longitudinal cross-sectional view of the stamp forming apparatus which concerns on 1st Embodiment. It is a principal part general | schematic front longitudinal cross-sectional view which shows the state which the workpiece | work press type | mold which comprises the stamp forming apparatus of FIG. 1 contact | abutted to the workpiece | work. It is a principal front schematic longitudinal cross-sectional view which shows the state by which the said workpiece | work is pressed by the workpiece press type | mold and it is shape | molded according to the convex part for shaping | molding of a fixed die. It is a principal part general | schematic front longitudinal cross-sectional view which shows the state which the semi-solidified slurry mounted on the said workpiece | work is pressed by the slurry press type | mold, and is shape | molded according to the shape of the lower end surface of this slurry press type | mold. It is a principal front schematic longitudinal cross-sectional view of the stamp forming apparatus which concerns on 2nd Embodiment. FIG. 6 is a schematic front longitudinal sectional view of a main part showing a state where a slurry outflow preventing member constituting the stamp forming apparatus of FIG. 5 is in contact with a workpiece. It is a principal part general | schematic front longitudinal cross-sectional view which shows the state which the semi-solidified slurry mounted on the said workpiece | work is pressed by the slurry press type | mold, and is shape | molded according to the shape of the lower end surface of this slurry press type | mold. It is a principal part general | schematic front longitudinal cross-sectional view which shows the state which the slurry press type | mold separated from the molded object. FIG. 6 is a schematic front longitudinal sectional view of an essential part showing a state in which a work pressing die constituting the stamp forming apparatus of FIG. 5 is in contact with a work. It is a principal front schematic longitudinal cross-sectional view which shows the state by which the said workpiece | work is pressed by the workpiece press type | mold and it is shape | molded according to the convex part for shaping | molding of a fixed die.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10, 50 ... Stamp forming apparatus 14 ... Fixed die 16 ... Work support type | mold (1st type | mold) 18 ... Slurry press type | mold (2nd type | mold)
20 ... Work pressing mold 24 ... Molding convex portions 25a, 25b, 35a, 35b, 57a, 57b ... Cylinder devices 26a, 26b, 36a, 36b, 58a, 58b ... Rod 42 ... Stepped portions 44, 64 ... Space 54 ... Rod 60 ... Slurry outflow prevention member SL ... Semi-solidified slurry W ... Workpiece

Claims (4)

A stamp molding method for obtaining a joined molded product by joining a semi-solid slurry and a workpiece to each other,
Supporting the workpiece with a first die and a die;
Placing the semi-solid slurry on one end surface of the workpiece;
Forming an end surface, the space surrounding the second type and thus the semi-solidified slurry in the slurry outflow preventing member of the workpiece,
Pressing the semi-solid slurry with the second mold and sliding on the end face of the workpiece;
Have
The more slurry outflow preventing member, sealed dam the semi-solidified slurry flowing is pressed on the second type,
Pressing the workpiece supported by the first die and the die by the third die either before or after pressing the semi-solid slurry with the second die, thereby press forming the workpiece. A stamp forming method characterized by: A stamp molding method for obtaining a joined molded product by joining a semi-solid slurry and a workpiece to each other,
Supporting the workpiece with a first die and a die;
Placing the semi-solid slurry on one end surface of the workpiece;
Forming a space surrounding the semi-solidified slurry one end surface of the workpiece, the second type及Beauty third type,
Pressing the semi-solid slurry with the second mold and sliding on the end face of the workpiece;
Have
The pre-Symbol third type, sealed weir the semi-solidified slurry flowing is pressed on the second type,
Pressing the workpiece supported by the first die and the die with the third die either before or after pressing the semi-solid slurry with the second die, thereby press forming the workpiece. A stamp forming method characterized by performing processing. A stamp forming apparatus for obtaining a joined molded product by joining a semi-solid slurry and a workpiece to each other,
A first mold and a die for supporting the workpiece;
A second mold for pressing the semi-solid slurry placed on one end surface of the workpiece;
A third mold that performs press molding on the work by pressing the work supported by the first mold and the die;
Have
A slurry outflow preventing member, said to form a semi-solid slurry space surrounding the at one end surface and the second type of the workpiece, the semi-solidified slurry The slurry effluent flowing is pressed on the second type weir sealed in the prevention member,
The stamp molding apparatus, wherein the third mold performs a press molding process on the workpiece either before or after the semi-solid slurry is pressed by the second mold. A stamp forming apparatus for obtaining a joined molded product by joining a semi-solid slurry and a workpiece to each other,
A first mold and a die for supporting the workpiece;
A second mold for pressing the semi-solid slurry placed on one end surface of the workpiece;
A third mold that performs press molding on the work by pressing the work supported by the first mold and the die;
Have
Before SL and a third type, the work end surface and to form a space surrounding the semi-solidified slurry in the second type of the semi-solidified slurry before Symbol first flowing is pressed on the second type Damping with type 3,
The stamp molding apparatus, wherein the third mold performs a press molding process on the workpiece either before or after the semi-solid slurry is pressed by the second mold.

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