JP2001225141A - Composite material and its production method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a composite material easily supplying two or more kinds of materials, having a strong composite state and easily not coming off each other. SOLUTION: In a composite material in which a dissimilar material is embedded in a base material, the outer periphery of the dissimilar material is embedded in the base material plastically worked, further, the composite material is manufactured by forming while causing the base material 1 to flow into the space around the dissimilar material 2 having a small cross sectional area in a forming space, the dissimilar material 2 is embedded into the base material 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a composite material in which a base material and a different material having different properties from each other are compounded, and the properties of each material are exhibited in a composite manner.
The present invention relates to a composite material applicable to golf club head soles, valve lifters, and the like.

[0002]

2. Description of the Related Art Generally, in order to combine two or more kinds of materials, means such as bolting, caulking or welding, and bonding are used. For example, taking a sole portion of a golf club as an example, as shown in FIG.
Or a weight member 1 having a constriction 14 as shown in FIG.
3 is attached by caulking, and further, as for the bubble lifter, as shown in FIG.
The protective layer 16 is welded and brazed to a part of the surface layer.

[0003] However, in these conventional fixing methods, there are problems in that joining and joining are loosened due to repeated vibrations and shocks to cause dissimilar materials to come off, and that processing is complicated.

[0004]

The present invention relates to the following (1)
To (8). (1) A composite material in which a heterogeneous material is embedded in a base material, wherein the outer periphery of the heterogeneous material is embedded with a plastically processed base material.

(2) The composite material according to (1), wherein the dissimilar material is plastically worked together with the base material. (3) The composite material as described in (1) or (2) above, wherein the base material is a plastically workable material such as a titanium alloy, an aluminum alloy, and stainless steel.

(4) The composite material according to (1), wherein the different material is a high specific gravity material such as a tungsten alloy, a copper alloy, and a cemented carbide. (5) The composite material as described in (1) above, wherein the dissimilar material is a material that can be subjected to plastic working such as a heat-resistant alloy or a wear-resistant alloy.

(6) A material extruding portion is opened in a molding space extending over the opposing surfaces of the upper mold and the lower mold, and the material extruding portion is filled with a base material. A small dissimilar material is added, these basic materials and dissimilar materials are pressed while heating, extruded into the forming space and plastically processed, and at the same time, the base material is formed while flowing in the peripheral space of the dissimilar material having a small cross-sectional area. A method for producing a composite material, comprising embedding a dissimilar material in a base material.
In particular, when manufacturing a golf club head, the golf club head is extruded into a forming space in a direction different from the pressing direction and plastically processed.

(7) The method for producing a composite material according to (6), wherein at least one of the base material and the dissimilar material is heated to a plastic working temperature and molded. (8) The base material is a plastically workable material such as a titanium alloy, an aluminum alloy, or stainless steel, and the different material is a high specific gravity material such as a tungsten alloy, a copper alloy, or a cemented carbide, or a heat-resistant alloy or a wear-resistant alloy. The method for producing a composite material according to the above (6) or (7), wherein the composite material is a material that can be subjected to plastic working.

The material used as a basic material of the composite material of the present invention is a material which can be subjected to plastic working such as the titanium alloy, aluminum alloy and stainless steel described in the above (3), and particularly the following general formulas (I) to (I). A rapidly solidified Al-based alloy having superplasticity shown in IV) is preferably used.

(I) Al _a M _1b X _e (II) Al _a M _{1 (bc)} M _2c X _e (III) Al _a M _{1 (bd)} M _3d X _e (IV) Al _a M _{1 (bcd)} M _2c M _3d X _e (where M ₁ : at least one element selected from Mn, Fe, Co, Ni, Mo; M ₂ : at least one element selected from V, Cr, W; M ₃ : Li, Ca, M
g, at least one element selected from Si, Cu, Zn, X: at least selected from Nb, Hf, Ta, Y, Zr, Ti, Ag, a rare earth element and an aggregate of rare earth elements (Mm: misch metal) One element, a, b,
c, d, and e are atomic percentages of 75 ≦ a ≦ 97, 0.5
≦ b ≦ 15, 0.1 ≦ c ≦ 5, 0.5 ≦ d ≦ 5, 0.5
≦ e ≦ 10)

The different materials include high specific gravity materials such as the tungsten alloys, copper alloys and cemented carbides described in (4) above, and materials capable of being plastically processed such as heat resistant alloys and wear resistant alloys described in (5). Is used. The former is wrapped by the plastic flow of the base material while maintaining its original shape in the compounding process. The latter is wrapped by the plastic flow of the base material and is also plastically deformed to form a part of the surface layer.

This will be described with reference to the drawings. In FIG. 1, reference numeral 1 denotes a base material, and 2 denotes a dissimilar material, particularly a material having a high specific gravity and a high hardness. First, the base material 1 is charged into the material supply port 5 of the upper mold 3 including the upper mold 3 and the lower mold 4, and the different material 2 is charged thereon. The dissimilar material 2 has a constricted portion at the center, and the area of the largest diameter portion is smaller than the cross-sectional area of the material supply port 5. This is pressed by a stem 7 while being heated by a heating body 6 provided inside the upper die 3 to perform plastic working.

As shown in FIG. 2, when the plastic working is performed, the base material 1 spreads in a direction perpendicular to the pressing direction, and
, And is embedded so as to enclose the dissimilar material 2.

FIG. 3 shows an example in which a material which can be subjected to plastic working is used as the dissimilar material 2 '. The dissimilar material 2 ′ is inserted into the material supply port 5 while partially embedded in the upper end of the base material 1, and is pressed to be formed. Then, as shown in FIG. 4, the base material 1 spreads in a direction perpendicular to the pressing direction, and then the dissimilar material 2 'is plastically worked. In this case, the dissimilar material 2 ′ has a cross-sectional area smaller than the cross-sectional area of the base material 1, the existence of a cavity around the base material 1, and the lower part of the base material 1 being embedded in the upper end of the base material 1. 1 flows plastically into the cavity, and the portion of the dissimilar material 2 'embedded in the base material 1 first flows in a direction perpendicular to the pressing direction, and the base material 1 in the cavity portion is delayed in the same direction. Since it flows, the cross section of the dissimilar material 2 'has an inverted T shape. Therefore, the dissimilar material 2 'does not easily fall off from the base material.

FIG. 5 shows an example in which the dissimilar material 2 is divided into two parts, each of which is pressed together with the base material 1 by a stem 7 into a mold and integrally formed. An appropriate number of dissimilar materials 2 can be provided.

FIG. 6 shows an example in which the present invention is applied to a valve lifter, in which a main body is formed of a base material 1 and a different material 2 is wrapped and embedded on the upper surface thereof. When manufacturing, it is also possible to extrude into a molding space part in a direction different from the pressing direction and perform molding processing in the same manner as described above, and to perform plastic processing by pressing into the molding space part in the same direction as the pressing direction. Is also possible. FIG. 7 shows an example in which the sole portion of the golf club is formed of the base material 1 and the weight member is formed of the dissimilar material 2 and molded according to the method described with reference to FIGS. In the present invention, the state in which the different material is embedded in the basic material refers to a state in which the entire surface of the different material is covered with the basic material and a state in which the surface other than the pressing surface at the time of manufacturing is covered with the basic material.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to specific examples. The alloy club head mainly includes a face portion, a hosel portion following the face portion, a crown portion, and a sole portion, and the crown portion and the sole portion are integrally formed to form a main body portion. By embedding a different alloy having a large specific gravity inside the sole portion, the alloy can be used as a weight of a golf club and the center of gravity of the sole (the center of gravity of the club head) can be controlled.

The upper mold 3 and the lower mold 4 shown in FIGS. 1 and 2 are formed so that the molding part has the shape of a sole part, and the base material for forming the sole part is JIS 5052 aluminum alloy, Al _bal. Ni ₁₀ Cu _1.0 Ti _1.0 Zr _1.0 (wt
%), A rapidly solidified aluminum alloy, and Cu, W, F
e, Ti is charged into the material supply port, and 400 to
While pressurizing at 600 ° C., press molding is performed toward the inside of the mold.

According to this method, the weight portion is not exposed to the outside, and when the golf club head is formed in combination with the crown portion and the face portion, the weight portion is formed differently from the case where the golf club head is manufactured by the caulking method. The dissimilar material is not exposed to the outside, and corrosion or the like does not occur from the interface between the base material and the dissimilar material.

Next, an example of a valve lifter will be described.
Si-based alloy Al_balNi₇Cu_1.5Mn _2.5Ti_1.0Zr_1.0
Mg_0.2(Wt%), faster than rapidly solidified aluminum alloy
Aluminum alloy as a base material and S as a different material
Wear resistance made of iC, SKD61, SKH9, cemented carbide
Molding is performed according to the molding method shown in FIGS.
You. The valve lifter thus formed is made of aluminum
Withstands the impact and wear of cam operation while mainly using alloy
Things can be provided.

[0021]

According to the present invention, different materials having different characteristics can be securely fixed to the base material. In addition, a required number of different materials can be simultaneously fixed.
By selecting the material of the dissimilar material as the high specific gravity material, the dissimilar material at the time of departure can be embedded in the basic material as it is. Alternatively, by selecting a material that can be subjected to plastic working, the starting dissimilar material can be deformed and embedded.

In any case, a composite material resistant to impact and abrasion can be easily obtained by embedding a dissimilar material which does not easily fall into the base material.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram at the start of molding in an example of the present invention.

FIG. 2 is an explanatory view after molding of FIG. 1;

FIG. 3 is an explanatory view of another embodiment of the present invention at the start of molding.

FIG. 4 is an explanatory view after molding of FIG. 3;

FIG. 5 is an explanatory diagram of a modified example.

FIG. 6 is an explanatory diagram of a valve lifter to which the present invention is applied.

FIG. 7 is an explanatory diagram of a golf club head sole portion to which the present invention is applied.

FIG. 8 is an explanatory view of an example in which a weight member is joined to a conventional golf club head sole portion by welding or brazing.

FIG. 9 is an explanatory diagram of an example in which a weight member is attached to a conventional golf club head sole portion by caulking.

FIG. 10 is an explanatory diagram of a conventional valve lifter.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Basic material 2, 2 'Different material 3 Upper mold 4 Lower mold 5 Material supply part 6 Heating body 7 Stem

Claims (8)

[Claims] 1. A composite material in which a dissimilar material is embedded in a base material, wherein the outer periphery of the dissimilar material is embedded with a plastically processed base material. 2. The composite material according to claim 1, wherein the dissimilar material is plastically worked together with the base material. 3. The composite material according to claim 1, wherein the base material is a plastically workable material such as a titanium alloy, an aluminum alloy, and stainless steel. 4. The different material is a tungsten alloy, a copper alloy,
The composite material according to claim 1, which is a high specific gravity material such as a cemented carbide. 5. The composite material according to claim 1, wherein the dissimilar material is a material that can be subjected to plastic working such as a heat-resistant alloy or a wear-resistant alloy. 6. A material extruding portion is opened in a molding space portion extending on a facing surface of an upper mold and a lower mold, and the material extruding portion is filled with a base material, and further has a smaller sectional area than that of the base material. The dissimilar materials are added, these basic materials and dissimilar materials are pressed while being heated, extruded into a molding space and plastically processed, and at the same time, the base material is molded while flowing in the peripheral space of the dissimilar material having a small cross-sectional area, A method for producing a composite material, comprising embedding a dissimilar material into a base material. 7. The method for producing a composite material according to claim 6, wherein at least one of the base material and the dissimilar material is heated to a plastic working temperature and molded. 8. The base material is a plastically workable material such as a titanium alloy, an aluminum alloy, or stainless steel, and the different material is a high specific gravity material such as a tungsten alloy, a copper alloy, or a cemented carbide, or a heat-resistant alloy or a wear-resistant alloy. The method for producing a composite material according to claim 6, wherein the composite material is a material capable of plastic working.