KR101619722B1 - Die-casting mold for aluminum cluth housing - Google Patents

Die-casting mold for aluminum cluth housing Download PDF

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Publication number
KR101619722B1
KR101619722B1 KR1020150172377A KR20150172377A KR101619722B1 KR 101619722 B1 KR101619722 B1 KR 101619722B1 KR 1020150172377 A KR1020150172377 A KR 1020150172377A KR 20150172377 A KR20150172377 A KR 20150172377A KR 101619722 B1 KR101619722 B1 KR 101619722B1
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South Korea
Prior art keywords
mold
clutch housing
movable
aluminum
sprue
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KR1020150172377A
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Korean (ko)
Inventor
이홍수
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삼보오토 주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • B22D17/2272—Sprue channels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/26—Mechanisms or devices for locking or opening dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
    • B22D21/02—Casting exceedingly oxidisable non-ferrous metals, e.g. in inert atmosphere
    • B22D21/04—Casting aluminium or magnesium

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Operated Clutches (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

The present invention relates to a three-stage die-casting mold for manufacturing an aluminum clutch housing. The three-stage die-casting mold for manufacturing an aluminum clutch housing comprises: a fixed mold (10) which has a mold sleeve (11); a first moving mold (20) which allows the mold sleeve (11) to be connected to one side thereof and has a connection part (21) connected to the mold sleeve (11) and a first moving core (22) formed in the opposite part of a surface coming in contact with the fixed mold (10); a second moving mold (30) which has a second moving core (31) in one side and a conical core part (32) in the center; and a base (40) which is connected to the first and second moving molds (20, 30), respectively, through multiple hydraulic cylinders (41) to move the first and second moving molds (20, 30) forward and backward. Thus, the present invention enables the manufacture of a clutch housing having excellent quality by uniformly transferring enough pressure to the inside of a cavity.

Description

Technical Field [0001] The present invention relates to a die-casting mold for an aluminum clutch housing,

The present invention relates to a die casting mold for manufacturing an aluminum clutch housing, in which molten metal is introduced through a through-hole center line of a clutch housing having a through hole at the center, wherein the diameter of the spindle of the center line is 1/2 to 1 / 4, and the diameter of the center line trench is gradually increased. As a result, as the molten metal flows into the center line, the blind spot on the inflowing line of the molten metal is minimized to minimize the occurrence of pores, To a three-stage die casting mold for manufacturing an aluminum clutch housing.

Generally, a vehicle clutch is a part that operates inside an automobile and controls the combination of planetary gears to shift (decelerate) the rotational force of the engine transmitted from the engine to the mission through the torque converter.

Inside the clutch housing, a large number of combined clutch discs, a friction plate, and a piston are assembled, and the hydraulic pressure transmitted to the product through the oil passage is intermittently coupled with the power to the planetary gear related parts through the force of the piston, .

Thus, the clutch housing must have sufficient physical properties to withstand the high heat and pressure inside it.

A technique related to the manufacture of the clutch housing will be described in detail with reference to Fig. 1 (a), after cutting a metal plate into a donut shape in the "apparatus for manufacturing a clutch housing for an automobile" (Korean Utility Model Publication No. 20-1992-0019299, And a method of pressing a material in the form of a donut to form a wall of the central portion and a wall of the outer side at the same time.

In the case of the conventional method of manufacturing the metal by pressing the metal as described above, it is not practically applied to the production of the clutch in recent years due to the problem of low accuracy and difficulty in machining for heat radiation.

Due to such a problem, the clutch housing is manufactured by extrusion in recent years.

Generally, extrusion molding is performed by injecting molten material melted at a high temperature into a cavity formed between a movable mold and a stationary mold at a high pressure to form a certain shape.

In particular, die casting, which is called die casting during extrusion molding, is a precision casting method in which molten metal is injected into a precisely machined mandrel mold so as to perfectly match the required cast shape, thereby obtaining a casting having the same shape as the mold.

Such casting by die casting is advantageous in that since the casting is accurate in size, it is not necessary to finely polish it, but it is capable of mass production and has excellent mechanical properties

The metal used in such a die casting casting is an alloy of zinc, aluminum, tin and copper, and is cast into a mold by pouring it into a mold by air pressure, water pressure, or hydraulic pressure using a die casting die casting machine.

Production of products by the application of general die casting method can not secure high mechanical properties due to the presence of many chronic porosity increase, coagulation shrinkage and breakage layer.

Particularly, pores are generated at a high position of a main fastening part in the product, resulting in a product failure.

It is known that the main cause of the increase of the porosity of the general die casting is caused by the residual gas in the mold, and it is possible to reduce problems such as decrease of porosity and coagulation shrinkage and breakage due to establishment of optimal casting condition, There is a limit to obtaining quality.

In particular, in the case of casting an axially symmetric radial product using an aluminum alloy or pure aluminum, when casting a molten aluminum alloy melt into a mold, the melt is rapidly injected in a short time, The coagulation of the molten metal increases the porosity of the product, resulting in uneven casting defects in the solidification structure.

As shown in FIGS. 1 and 2, the clutch housing is formed with a plurality of protrusions and recesses for heat dissipation on the outer circumferential surface thereof, and has a shape having a hole passing through the center in the front and back.

On the other hand, as a technique related to a die casting mold, there is a known technique such as a "high vacuum die casting mold structure in which a three-stage partition is formed" (Korean Patent Registration No. 10-1362701, And a cavity formed between the movable mold and the movable mold and having a shape corresponding to the shape of the article to be molded.

When manufacturing a clutch housing made of aluminum using a die casting mold such as Patent Document 2, the molten metal is usually supplied through a runner gate having a small thickness, and a plurality of inserts protruding into the cavity are used to form a molten metal The pressure will vary.

That is, when the pressure of the molten metal supplied from the casting machine and passing through the sleeve is not uniformly applied due to the position of the inserts in the cavity, and thus, when the molten metal is solidified after the supply is completed, porosity due to defective shrinkage occurs, And the like.

The applicant of the present invention has proposed a diecasting die for manufacturing a mission oil pump cover (Korean Patent Registration No. 10-1547794), which is a product related to die casting mold for a mission oil pump cover, which is a product different from the present invention, To minimize the vortex flow of the molten metal flow due to the obstacle, thereby minimizing the pore entrainment.

However, since the clutch housing requires higher heat resistance than that of the mission oil pump cover, the compactness of the structure must be maximized one by one, so that it is difficult to solve the problem with the technology of the present invention.

As a technology related to solving such a problem, a "center gate type die casting mold apparatus and a method for manufacturing an axisymmetric radial product using the same" (Korean Patent Laid-Open Publication No. 10-2015-0070735, Patent Literature 3) .

In Patent Document 3, a metal mold is formed by a center gate type so that the molten metal is injected into the central portion of the cavity and dispersed to the outside of the cavity by the core portion, thereby finishing the metal structure of the axially symmetric radial type product.

However, in the structure as in Patent Document 3, since the area of the center gate type sprue relative to the inner diameter of the mold sleeve is excessively narrow, the pressure of the molten metal in the center center sprue increases and the flow velocity increases. In addition, Even though the molten metal is dispersed by the core portion and the molten metal is supplied, the straightness is strong, so that the molten metal can not flow smoothly to the outer side of the cavity, resulting in unsatisfactory tissue compacting performance on the outer side of the product.

In addition, since the thickness of the gate is too thin as compared with the inner diameter of the mold sleeve and center line sprue, there is a problem that the supply of additional molten metal is not smoothly performed when shrinkage occurs after the initial molten metal is injected.

KR 20-1992-0019299 (November 16, 1992) KR 10-1362701 (2014.02.07) KR 10-2015-0070735 (June 25, 2015)

The three-stage die casting mold for manufacturing an aluminum clutch housing of the present invention is for solving the above-described problems in the related art. The molten metal is supplied into the cavity through the center line, which is a portion where the through hole of the clutch housing is formed, So that sufficient pressure can be uniformly transferred to the inside of the cavity, thereby making the structure of the molded product more dense, thereby making it possible to manufacture a clutch housing of excellent quality.

In particular, by forming, with the inner diameter of the inner diameter compared to the connection of the mold sleeve about 1/2 to 1/4, the inclination of the connecting portion formed hwakgyeong an inclination angle of 4-10., And only the thickness of the gate with 3 ~ 6 mm So that the molten metal is uniformly dispersed and filled without generating porosity while being sufficiently pressurized into the cavity, so that even more compact structure can be obtained.

Particularly, when the molten metal is further supplied by the amount corresponding to the volume reduction after the primary solidification of the injected molten metal, the thickness of the gate has a sufficient thickness so that additional molten metal can be supplied smoothly.

In addition, the gate is roundly connected to the center sprue in a direction perpendicular to the longitudinal direction of the through-hole, and connected to a cavity at a position corresponding to the middle portion of the through-hole, whereby the molten metal spreads to the maximum extent, So that it can be done more precisely.

A three-stage die casting mold for manufacturing an aluminum clutch housing according to the present invention is a die casting mold for manufacturing an aluminum clutch housing for manufacturing an aluminum clutch housing (1) having a through hole (1a) , A stationary mold (10) having a mold sleeve (11) having an inner diameter of 65 to 85 mm which is connected to an outer caster on one side and a molten metal is introduced from the caster; On one side it is connected to the mold sleeve 11 forms a through hole (1a) where the straight line of the clutch housing (1), 4-10. Mold sleeve (11 while taking the tapered inner diameter gradually increases in an angle A connecting portion 21 having an end portion connected to the fixed mold 10 and a connecting portion 21 having a diameter of 15 to 35 mm is formed and is disposed adjacent to the fixed mold 10 so as to be movable forward and backward, The first movable core 22 has an inner circumferential surface corresponding to one side surface of the aluminum clutch housing 1 and the connecting portion 21 is formed in a shape corresponding to one side surface of the aluminum clutch housing 1. [ And a central sprue opening 23 corresponding to the position of the through hole 1a of the clutch housing 1 and extending at the same angle from the connecting portion 21 is formed at an end of the center sprue 23, A cavity of a thickness of 3 to 6 mm communicating with the cavity (24) A first movable mold 20 in which a plurality of protrusions 23a are formed; A second movable core 31 corresponding to the other side surface shape of the clutch housing 1 is installed on one side and the second movable core 31 is fixed to the clutch housing 1 A second movable mold 30 forming a cavity 24 into which molten metal is injected in correspondence with the shape of the central mold spout 23 and having a conical core portion 32 protruding toward the center spout 23 at the center; The first movable mold 20 and the second movable mold 30 are connected to the first movable mold 20 and the second movable mold 30 by a plurality of hydraulic cylinders 41 to move the first movable mold 20 and the second movable mold 30 forward, And a base (40) adapted to be rotated.

In the above-described configuration, the stationary die 10 is provided with a vertical sprue 12 for connecting the mold sleeve 11 and the connecting portion 21, wherein the vertical sprue 12 has a thickness of 8 to 15 mm, a width 30 to 60 mm.

Further, the core portion 32 of the cone may protrude than the position of the gate (23a) to the inside of the center sprue (23), the gate (23a) is 90 from the center sprue (23) the longitudinal direction is also bent at an angle And is connected to a cavity (24) at a position corresponding to an intermediate portion of the through hole (1a) of the clutch housing (1).

According to the present invention, since the molten metal is supplied into the cavity through the center line, which is a portion where the through holes of the clutch housing are formed, the molten metal flows smoothly and a sufficient pressure is uniformly transferred to the inside of the cavity, Thereby making it possible to manufacture a clutch housing of excellent quality.

In particular, by forming, with the inner diameter of the inner diameter compared to the connection of the mold sleeve about 1/2 to 1/4, the inclination of the connecting portion formed hwakgyeong an inclination angle of 4-10., And only the thickness of the gate with 3 ~ 6 mm So that the molten metal is uniformly dispersed and filled without generating porosity while being sufficiently pressurized into the cavity, and pressure can be evenly applied to form a more dense structure.

In particular, when the molten metal is further supplied by the amount corresponding to the volume reduction after the primary solidification of the molten molten metal, the thickness of the gate has a sufficient thickness so that the additional molten metal can be supplied smoothly.

In addition, the gate is roundly connected to the center sprue in a direction perpendicular to the longitudinal direction of the through-hole, and connected to a cavity at a position corresponding to the middle portion of the through-hole, whereby the molten metal spreads to the maximum extent, Can be made more compact.

1 is a perspective view showing one side surface of a clutch housing;
2 is a perspective view showing another side surface shape of the clutch housing;
3 is a schematic cross-sectional view showing another example of the clutch housing;
4 is a schematic cross-sectional schematic view of a three-stage die casting mold for manufacturing an aluminum clutch housing of the present invention.
5 is a schematic cross-sectional view showing another example of a three-stage die casting mold for manufacturing an aluminum clutch housing of the present invention.
Figs. 6 to 9 are views showing numerical-limited portions of a mold sleeve, a center sprue bush, a vertical sprue bush, and a connecting portion according to the clutch housing type in the present invention.

As shown in FIGS. 1 and 2, the aluminum clutch housing 1 to be manufactured through the mold of the present invention has a through hole 1a at the center thereof, and a plurality of protrusions for heat radiation are formed along the circumference have.

Since the aluminum clutch housing 1 must withstand the frictional heat generated from the clutch wheel, the disk, etc. for a long period of time, the structure of the aluminum clutch housing 1 must be dense and the pores must be small.

Hereinafter, the three-stage die casting mold for manufacturing the aluminum clutch housing of the present invention for manufacturing the clutch housing 1 having the above-described excellent quality will be described in detail with reference to the accompanying drawings.

The present invention largely comprises a stationary mold 10, a first movable mold 20, a second movable mold 30, and a base 40.

In addition, it is obvious that a molten metal injection member, a vacuum means, a slide member, an eject member, and the like provided in the die casting mold are provided.

As shown in FIGS. 4 and 5, the stationary mold 10 is connected to an outer casting machine at one side thereof, and a mold sleeve 11 having an inner diameter of 65 to 85 mm is formed by introducing the molten metal from the casting machine.

The inner diameter of the mold sleeve 11 as described above corresponds to the diameter of the molten metal from the casting machine and the diameter for facilitating the pressure transmission.

As shown in FIGS. 4 and 5, the first movable mold 20 has a connection part 21 connected to the mold sleeve 11 at one side thereof.

4 shows a configuration in which the mold sleeve 11 is connected to the direct connection part 21, and FIG. 5 shows a configuration connected through the vertical sprue 12.

As shown in the drawing, the connecting portion 21 is formed so as to be in a straight line with the position of the through hole 1a of the clutch housing 1 to be manufactured. The inner diameter of the connecting portion 21 is gradually increased from a point connected to the mold sleeve 11 Takes a tapered cross-sectional shape.

At this time, the inclination angle (e) as shown in Figure 6 is preferably make up 4-10.

It is preferable that the diameter d of the end portion of the connecting portion 21 connected to the mold sleeve 11 is 15 to 35 mm.

This is about 1/2 to 1/4 of the inner diameter (a) of the mold sleeve 11, which is a relatively large diameter as compared with Patent Document 3.

The inner diameter of the connecting portion 21 is relatively large in order to delay the ingot solidification time after the injection is completed.

This differs from trying to promote coagulation time in conventional die casting.

The reason for delaying the solidification time is to reduce the pore generation rate by tightening the structure through the low-speed solidification rather than the rapid solidification, and by supplying the additional molten metal through the runner as much as the amount of the molten metal shrinkage during the molding process, So that it becomes more compact.

That is, the casting pressure is transferred from the casting machine to the inside of the mold for a sufficient time, thereby minimizing pores in the product.

As a result of a number of experiments, it has been found from the result of a number of experiments that if the thickness exceeds the above range, the molding time is delayed excessively. If the thickness is less than the above range, solidification is performed quickly, And sufficient pressurization is difficult to be exerted.

In addition, in the embodiment of FIG. 5 in which the vertical sprue 12 is formed, it is preferable that the vertical sprue 12 also has a larger volume than that of the prior art such as Patent Document 3, ) Is 8 to 15 mm, and the width (b) is 30 to 60 mm.

This size is such that the unit area is about 3,115 to 5,671 mm 2 when the inner diameter of the mold sleeve 11 is 65 to 85 mm and the unit area of the vertical sprue 12 is about 240 to 900 mm 2, .

The inner diameter of the inlet of the connecting portion 21 is 15 to 35 mm. The unit area is about 706.5 to 3846 mm 2, which is about 4 to 1.8 times higher than the inner diameter of the mold sleeve 11, Compared with the vertical sprue 12, the pressure is lowered to about 1/3 to 1/4 of the pressure.

That is, when the molten metal passes through the mold sleeve 11, the vertical sprue 12, and the connecting portion 21, a relatively high pressure is generated in the vertical sprue 12 as compared with the mold sleeve 11, A relatively low pressure is generated in comparison with the vertical sprue 12 because the molten metal does not rapidly flow into the connection portion 21 but passes through the vertical sprue 12 to lower the pressure in the state where high pressure is applied So that the injection of the molten metal can be relatively slowly injected.

Further, the connecting portion 21 is gradually enlarged in the range of 4 to 10 .mu.m from the end portion of the mold sleeve 11 side . As the cross-sectional area is taken as a reference, the pressure is reduced as the reference value is increased and the injection pressure per unit area at the time of injection into the cavity becomes excessively high So that rapid vortex formation and pore generation due to this are minimized.

In addition, when the cross-sectional area of the connecting portion 21 is set to be in agreement with this angle, there is a problem that the pressure per unit area becomes too large when the diameter exceeds the above-mentioned range. .

If the angle exceeds the range defined by the connecting portion 21, partial backflow of the molten metal may occur. If the angle is less than the range, satisfactory effects may not be obtained.

Also, the numerical range of the vertical sprue 12 is also related to the cross-sectional area of the connecting portion 21 and the mold sleeve 11, and is preferably limited to the above numerical range.

As shown in FIGS. 4 and 5, the first movable mold 20 is disposed adjacent to the stationary mold 10 on the opposite side to the base 40 so that the first movable mold 20 can be moved back and forth as the one side is connected to the hydraulic cylinder. do.

In addition, the first movable die 20 is provided with a first movable core 22 at a position opposite to the surface in contact with the stationary mold 10.

At this time, the inner circumferential surface of the first movable core 22 takes a shape corresponding to one side surface shape of the aluminum clutch housing 1. [

The first movable core 22 is connected to the connecting portion 21 and corresponds to the position of the through hole 1a of the clutch housing 1. The center pinion 23 extending from the connecting portion 21 at the same angle, Respectively.

At this time, a gate 23a having a thickness of 3 to 6 mm is formed at the end of the center sprue 23 in communication with the cavity 24.

As shown in FIGS. 4 and 5, the second movable mold 30 is provided with a second movable core 31 corresponding to the other side surface shape of the clutch housing 1, (31) is formed with a cavity (24) in which the molten metal is injected in correspondence with the shape of the clutch housing (1) with respect to the first movable core (22), and a conical A core portion 32 is formed.

4, the interface between the first movable core 22 and the second movable core 31 corresponds to the rear end side of the aluminum clutch housing 1. In the case of FIG. 5, the boundary surface corresponds to the aluminum clutch housing 1 ) In the middle of the body.

According to each embodiment, inserts (not shown) are selectively provided on the first movable core 22 and the second movable core 31 to form the cavity 24 together with the inner peripheral surface of the first movable core 22. [

The second movable core 31 is installed in order to install the conical core portion 32.

The core portion 32 is formed in a conical shape as shown in FIGS. 4 and 5 so that the pressure at the gate 23a side is uniformly distributed toward the outer side while the end-side flow path of the center sprue can 23 narrows.

In addition, the thickness of the remaining bar is reduced after the molding is completed to facilitate the separation.

More preferably, the conical core portion 32 is protruded to the inside of the center sprue 23 more than the position of the gate 23a as shown in FIGS.

In addition, the gate (23a) is a center sprue (23) in length and 90 from a direction is also formed bent at an angle, connected to the cavity 24 of the point corresponding to the middle portion through-hole (1a) of the clutch housing (1) .

At this time, it is more preferable that the position of the intermediate portion corresponds to the point connecting the partition of the housing 1 which takes the form of a partition as shown in the figure.

In addition, 90. FIG bent angle means that an angle to the bent rounded shape by the conical shape of the core part 32.

As the gate 23a is bent in the 90.degree . Direction, the molten metal injected from the mold sleeve 11 is supplied to the cavity 24 as much as possible.

This means that the generation time difference of the molten metal in the cavity 24 is minimized and the solidification can be made even.

This is different from the case of Patent Document 3 in that the gate 23a is formed straight or oblique to the supply direction of the molten metal.

In addition, 90 completely. The foam in the vortex formation due to the pores generated in the striking portion when the form angled road is difficult to manufacture a housing of simhaejyeo quality.

On the other hand, the gate 23a has a thickness (f) of 3 to 6 mm, which is relatively large as compared with the conventional gate as described above.

If it exceeds the above range, it is not easy to separate the burr after the molding is completed. On the other hand, if the burr is less than the above range, the molten metal can not flow slowly and the high pressure generates pores, The molten metal may not be well supplied due to the solidified molten metal in the gate 23a when the additional molten metal is supplied according to the volume reduction after the primary solidification.

The base 40 is connected to the first movable mold 20 and the second movable mold 30 by a plurality of hydraulic cylinders 41 as shown in Figures 4 and 5 to form the first movable mold 20, And the second movable mold 30, respectively.

Hereinafter, a method of manufacturing an aluminum clutch housing using a die-casting mold having the above-described structure will be described.

The first movable mold 20 and the second movable mold 30 are moved toward the stationary mold 10 so that the first movable core 22 and the second movable core 30 And the supply flow path of the molten metal consisting of the mold sleeve 11, the connecting portion 21 and the center sprue 23 from the stationary mold 10 to the cavity 24 is formed in the cavity 24 The molten metal is supplied from the outer casting machine to the cavity 24 through the mold sleeve 11 and the connecting portion 21, the center sprue 23 and the gate 23a.

At this time, when the molten metal passes through the vertical sprue 12 in the mold sleeve 11, it is in a state of a relatively high pressure and is supplied to the connecting portion 21 and becomes higher than the mold sleeve 11.

When passing through the vertical sprue 12, the pressure is relatively lowered.

In the center sprue can 23, the core portion 32 is dispersed to the outside and flows into the cavity 24 evenly through the gate 23a.

At this time, due to the limitations of the numerical values described above, the molten metal is distributed evenly in the cavity 24 while minimizing formation of vortices, and the generation of pores is reduced.

Then, after the molten metal is supplied, the molten metal is firstly solidified through cooling, and then the molten metal is supplied again by the amount corresponding to the reduction in volume due to solidification, thereby making the structure more dense.

After finishing the solidification once again, the second movable mold 30 is moved to the original position in the finishing step and the first movable mold 20 is moved in the second position.

At this time, the connection point between the connection portion 21 and the center spout hole 23 is separated by the movement of the first movable mold 20. [

Then, after the semi-finished product left in the first movable die 20 is taken out, the residual burr corresponding to the position of the center sprue 23 side is removed to complete the work.

6 to 9 show the types of the mold sleeve 11, the vertical sprue 12, the connecting portion 21 and the center sprue 23 according to the type of the clutch housing.

6 and 7 are for manufacturing a clutch housing in which a plurality of holes are formed on the surface of the housing. In the case of FIG. 6, an example in which the vertical sprue 12 is excluded and an example in which the vertical sprue 12 is provided in FIG. 7 is shown have.

Figs. 8 and 9 show the case where there is no hole on the surface of the housing, Fig. 8 shows the case where the vertical sprue 12 is provided, and Fig. 9 shows the case where the vertical sprue 12 is excluded.

As described above, the die casting mold can be utilized for manufacturing various types of clutch housings through the supply of the molten metal through the center line.

As described above, the diameter of the mold sleeve 11 and the shape, thickness, and size of the gates and gates associated with the die sleeve 11 are combined with each other, and the aluminum clutch housing (1) can be produced.

1: Housing 1a: Through hole
10: stationary mold 11: mold sleeve
12: Vertical sprue 20: First movable mold
21: connection part 22: first movable core
23: Center sprue 23a: Gate
24: cavity 30: second movable mold
31: second movable core 32: core portion
40: Base 41: Hydraulic cylinder

Claims (3)

A die casting mold for manufacturing an aluminum clutch housing (1) for manufacturing an aluminum clutch housing (1) having a through hole (1a) formed at the center thereof,
A fixed mold 10 connected to an outer casting machine at one side and having a mold sleeve 11 having an inner diameter of 65 to 85 mm introduced from a casting machine;
On one side is connected to the mold sleeve 11 forms a through hole (1a) where the straight line of the clutch housing (1), while taking the tapered inner diameter gradually increases at an angle of 4 to 10. The mold sleeve (11 A connecting portion 21 having an end portion connected to the fixed mold 10 and a connecting portion 21 having a diameter of 15 to 35 mm is formed and is disposed adjacent to the fixed mold 10 so as to be movable forward and backward, The first movable core 22 has an inner circumferential surface corresponding to one side surface of the aluminum clutch housing 1 and the connecting portion 21 is formed in a shape corresponding to one side surface of the aluminum clutch housing 1. [ And a central sprue opening 23 corresponding to the position of the through hole 1a of the clutch housing 1 and extending at the same angle from the connecting portion 21 is formed at an end of the center sprue 23, A cavity (24) communicating with the cavity (24) and having a thickness of 3 to 6 mm A first movable mold 20 on which a trench 23a is formed;
A second movable core 31 corresponding to the other side surface shape of the clutch housing 1 is installed on one side and the second movable core 31 is fixed to the clutch housing 1 A second movable mold 30 forming a cavity 24 into which molten metal is injected in correspondence with the shape of the central mold spout 23 and having a conical core portion 32 protruding toward the center spout 23 at the center;
The first movable mold 20 and the second movable mold 30 are connected to the first movable mold 20 and the second movable mold 30 by a plurality of hydraulic cylinders 41 to move the first movable mold 20 and the second movable mold 30 forward, And a base (40) adapted to receive the substrate
3 stage die casting mold for aluminum clutch housing manufacturing.
The method according to claim 1,
In the stationary mold 10,
A vertical sprue 12 connecting the mold sleeve 11 and the connecting portion 21 is formed,
Characterized in that the vertical sprue 12 has a thickness of 8 to 15 mm and a width of 30 to 60 mm.
3 stage die casting mold for aluminum clutch housing manufacturing.
3. The method according to any one of claims 1 to 2,
The core portion 32 of the cone may protrude than the position of the gate (23a) to the inside of the center sprue (23), the gate (23a) is formed bent to 90. degree angle from the center sprue 23 longitudinally And is connected to a cavity (24) at a position corresponding to an intermediate portion of the through hole (1a) of the clutch housing (1)
3 stage die casting mold for aluminum clutch housing manufacturing.
KR1020150172377A 2015-12-04 2015-12-04 Die-casting mold for aluminum cluth housing KR101619722B1 (en)

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Application Number Priority Date Filing Date Title
KR1020150172377A KR101619722B1 (en) 2015-12-04 2015-12-04 Die-casting mold for aluminum cluth housing

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KR101619722B1 true KR101619722B1 (en) 2016-05-18

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180045295A (en) * 2016-10-25 2018-05-04 한국생산기술연구원 Mold of vehicle clutch housing for diecasting and manufacturing method of vehicle clutch housing
CN113787181A (en) * 2021-07-26 2021-12-14 金榀精密工业(苏州)有限公司 Top inflow type disc body die-casting forming structure
KR20220101444A (en) * 2021-01-11 2022-07-19 한국생산기술연구원 Aluminum propeller manufacturing mold system with circular spray gate
KR102540789B1 (en) 2022-09-27 2023-06-07 용흥산업 주식회사 Method of Manufacturing Vehicle Parts using Die-casting Method

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JP2004130370A (en) 2002-10-11 2004-04-30 Denso Corp Die for die casting
KR101020175B1 (en) 2010-01-07 2011-03-23 투지텍 주식회사 Die construction for die-casting

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JP2004130370A (en) 2002-10-11 2004-04-30 Denso Corp Die for die casting
KR101020175B1 (en) 2010-01-07 2011-03-23 투지텍 주식회사 Die construction for die-casting

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180045295A (en) * 2016-10-25 2018-05-04 한국생산기술연구원 Mold of vehicle clutch housing for diecasting and manufacturing method of vehicle clutch housing
KR20220101444A (en) * 2021-01-11 2022-07-19 한국생산기술연구원 Aluminum propeller manufacturing mold system with circular spray gate
KR102484781B1 (en) * 2021-01-11 2023-01-06 한국생산기술연구원 Aluminum propeller manufacturing mold system with circular spray gate
CN113787181A (en) * 2021-07-26 2021-12-14 金榀精密工业(苏州)有限公司 Top inflow type disc body die-casting forming structure
KR102540789B1 (en) 2022-09-27 2023-06-07 용흥산업 주식회사 Method of Manufacturing Vehicle Parts using Die-casting Method

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