JP2000054091A - Manufacture of plate-like frm preform and composite body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method of manufacturing a plate-like FRM preform and a composite body for producing blades or rotors for an aircraft engine compressor. SOLUTION: The plate-like FRM preform consists of wire-shaped preforms 3, each consisting of a fiber reinforcement 2 formed into the shape of final composite body and flattened and a vapor-deposited film of matrix metal 1 each vapor-deposited onto the outside peripheral surface of the fiber reinforcement 2, and a matrix metal foil 5 provided in a manner to be orthogonal to the wire-shaped preforms 3 and joined to the matrix metal 1 by micro spot welding.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to the manufacture of a rotating FRM composite molded article such as a blade shape or a rotor applied to a gas turbine compressor or the like using gaseous or liquid fuel as a fuel. Uses flat FRM preforms and flat FRM preforms suitable for manufacturing FRM composite moldings that are used under severe conditions where high-speed rotation and high centrifugal stress occur at high temperatures The present invention relates to a method for manufacturing a composite molded article manufactured by the above method.

[0002]

2. Description of the Related Art In the development of next-generation aircraft engines such as high-speed urban transport passenger aircraft, raising the combustion temperature and reducing the weight are important matters. Development is desired.

[0003] In such circumstances, a flat FRM preform or a flat FRM for a blade or a rotor disk of a gas turbine compressor used for an aircraft engine is used.
The adoption of a method of manufacturing a composite molded article manufactured using an RM preform is expected to have the greatest effect.

FIG. 3 is a view showing one example of a conventional manufacturing process of such a flat FRM preform. As shown in the figure, Ti-6Al-4V or Ti-15V-3C
A plane of a composite molded body for producing a wire-shaped preform 3 made of a reinforcing fiber 2 such as SiC on which a matrix metal 1 is deposited using a Ti alloy or a titanium aluminide-based intermetallic compound such as r-3Al-3Sn. It is possible to fabricate a flat FRM preform in which these are temporarily fixed to each other with a binder 4 to form a planar shape, and are integrally combined to form a part of a composite molded body. Is being done.

However, in this way, the flat FR
In the case of making M preform,
Before integrally forming the planar wire-shaped preforms 3, it is necessary to temporarily fix the wire-shaped preforms 3 to each other by a vacuum heat treatment and evaporate the binder 4 which has been planarized. Therefore, when the wire-shaped preform 3 is integrally combined, the movement of the wire-shaped preform 3 which has been made flat by the binder 4 occurs, and the wire-shaped preform which has been made into an integrated body is made into a flat shape. It may be difficult to maintain the final shape of No. 3.

[0006] In addition, the juxtaposed wire-shaped preforms 3
Since the binder 4 is used to temporarily fix the outer peripheral surface of the wire-shaped preform 3, that is, the bonding surface of the wire-shaped matrix 3 joined together when integrally formed. The possibility of contamination (oxidation) occurs, and the mechanical properties of the integrated flat composite FRM preform and the final composite molded article formed by laminating the planar FRM preforms are deteriorated. There is fear.

FIG. 4 is a view showing another example of a manufacturing process of a conventional flat FRM preform. As shown in the figure, a wire-shaped preform 3 made of a reinforcing fiber 2 such as SiC, in which a matrix metal 1 made of the same material as the above-described Ti alloy or titanium aluminide-based intermetallic compound is deposited, is similarly formed into a planar shape. A flat FRM preform is also manufactured by pressing these pieces in a high temperature state by hot pressing or the like and integrating them.

However, in this way, the flat FR
In the case of making M preform,
There is a problem in that the cost required for the hot pressing step of bringing the wire-shaped preform 3 into a high-temperature state, pressing and integrating the wire-shaped preforms 3 becomes high. In the hot press step, the wire-shaped preform 3 needs to be kept in a high temperature state and held for a long time. Therefore, the contamination of the wire-shaped matrix 3 is performed in the same manner as in the case where the binder 4 is used. (Oxidation) occurs, and the mechanical properties of the composite molded article having the final shape integrally formed by laminating such flat FRM preforms are deteriorated, and the interfacial reaction between the reinforcing fibers 2 and the matrix metal is caused. Also,
There is a problem that the mechanical properties may be degraded, and the composite molded article having the final shape cannot maintain a predetermined design strength.

[0009]

SUMMARY OF THE INVENTION The present invention relates to a flat FRM preform manufactured by the above-described conventional manufacturing process,
In addition, by eliminating the problems that occur in the composite molded article manufactured using the flat FRM preform, when integrally integrated, the reinforcing fibers are arranged as designed, and the shape of the flat FRM preform is easily maintained. , Flat F
It is extremely easy to manufacture a composite molded article having a final shape using an RM preform, and the production efficiency can be increased at low cost. Furthermore, the mechanical properties of a flat FRM preform and a composite molded article having a final shape It is an object of the present invention to provide a flat FRM preform which is lightweight, can be increased in strength as designed, and a method of manufacturing a composite molded article manufactured using the flat FRM preform without causing deterioration. I do.

[0010]

Therefore, the flat FRM preform of the present invention has the following means.

(1) A plurality of reinforcing fibers arranged in a plane so as to form a composite molded article having an arbitrary shape by laminating, and an outer peripheral surface of the reinforcing fibers deposited on an outer surface of the reinforcing fibers. A wire-shaped preform made of a matrix (base material) metal on which a vapor-deposited film was formed was provided.

The reinforcing fibers are made of a silicon carbide material such as SiC, and the matrix metal is Ti-6A.
1-4V or Ti-15V-3Cr-3Al-3Sn
It is preferable to use a Ti alloy or a titanium aluminide-based intermetallic compound as described above. In addition, the flat plate formed by the wire-shaped preform is not necessarily limited to a fixed thickness, and the thickness is locally changed according to the shape of the finally formed composite molded body. It can also be made like that.

(2) Direction of juxtaposition of wire-shaped preforms,
That is, the deposited film of the matrix metal is arranged perpendicular to the direction in which the reinforcing fibers formed on the outer peripheral surface are provided, and is micro-spot-welded to the deposited film of the matrix metal, and the shape of the wire-shaped preform is juxtaposed in advance. A matrix metal foil was provided so that it could be held in a flat shape.

The matrix metal foil preferably uses the same Ti alloy and titanium aluminide-based intermetallic compound as the matrix metal.

(A) As described above, the flat FRM preform of the present invention uses a flat FR made of a reinforcing fiber having a matrix metal deposited thereon.
In order to form the M preform, the matrix metal foil is microspot-welded to the matrix metal of the wire-shaped preform, and the wire-shaped preform is juxtaposed by the matrix metal foil to form a composite formed body having an arbitrary shape. A flat FRM preform having a flat shape is formed, and the formed flat shape is maintained, so that a flat FRM preform using a binder is formed. Before compounding to form a flat FRM preform, the side-by-side wire-shaped preforms are formed into a desired planar shape without moving, and are arranged in the desired shape with the wire-shaped preforms. The formed flat FRM preform can be easily formed accurately.

Further, the matrix metal deposited on the outer peripheral surface of the reinforcing fiber is not contaminated by the binder, and deteriorates due to the contamination of the matrix metal. Does not weaken, and the mechanical properties of the flat FRM preform when it is formed into a desired shape and integrated are not deteriorated.

[0017] Further, it is possible to avoid the cost increase, which has occurred when the wire-shaped preform is integrally compounded by hot pressing to form a flat FRM preform, and to maintain the high temperature state for a long time in the hot pressing step. The possibility of contamination occurring in the integrally-composite flat FRM preform is eliminated, and the possibility of occurrence in the lamination portion of the combined flat molded FRM preform, which has been laminated and integrated into the final shape, at the time of joining. The final shape without deteriorating the mechanical strength of the composite formed body without deteriorating the mechanical strength caused by the interfacial reaction between the reinforcing fiber and the matrix metal. The strength of the composite molded article can be maintained at a strength as designed. The method for producing a composite molded article of the present invention employs the following means.

(3) A plurality of reinforcing fibers and a matrix metal vapor-deposited on the outer peripheral surface of the reinforcing fibers arranged in a plane so as to form a composite molded article having an arbitrary final shape by laminating. And a wire-shaped preform consisting of a vapor-deposited film formed by the above, and a matrix metal foil arranged perpendicular to the direction in which the reinforcing fibers are arranged, by microspot welding to the matrix metal of the wire-shaped preform. A flat plate forming step of forming a flat plate having a planar shape of the final molded body having the shape.

(4) The flat FRM preform formed on the flat plate of the composite molded body in the final state formed in the flat plate forming step is laminated, and the final state in the thickness direction of the composite molded body is obtained. A laminating step of forming a shape; (5) a flat FRM preform formed into a planar shape and a thickness shape of the composite molded product in the laminating process is composite-molded by hot pressing or the like, and integrated to form a composite molded product. Complexing process.

(B) The method for producing a composite molded article of the present invention comprises:
As described above, a matrix-shaped metal foil is microspot-welded to a wire-shaped preform made of a reinforcing fiber having a matrix metal deposited thereon, thereby forming a flat FRM preform that retains the planar shape of the composite molded article. Thereby, the shape can be easily maintained at the time of the integral composite, and it can be formed into a flat FRM preform having an accurate shape. Further, there is no contamination of the matrix for performing the integral composite, and the finally formed composite molded article can be formed. The strength can be maintained as designed, and it can be manufactured at low cost.

The flat plate F thus formed
By laminating RM preforms and compounding and forming them by hot pressing or the like to form a compounded molded article, a compounded molded article of any shape can be easily manufactured using any material. Become like

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a flat FRM preform according to the present invention will be described below with reference to the drawings.
FIG. 1 is a view showing a first embodiment of a flat FRM preform according to the present invention. FIG. 1 (a) is a cross-sectional view of the flat FRM preform, and FIG. It is a perspective view.

As shown in FIG.
Ti-6Al-4V or Ti-15V-3Cr- is attached to the outer peripheral surface of a 40 μm reinforcing fiber 2 (SiC fiber trademark SCS-6: manufactured by TEXTRON Systems, USA).
A matrix metal 1 made of a Ti alloy or a titanium aluminide-based intermetallic compound such as 3Al-3Sn is deposited to form a deposited film of a Ti alloy or the like having a diameter of about 200.
A wire preform 3 of μm is formed and aligned so that the outer peripheral surface of the wire preform 3 is in contact with the outer peripheral surface of the wire preform 3 disposed adjacent to the preform 3. The matrix metal foil 5 is placed on the substrate on which is formed, and the matrix metal foil 5 and the matrix metal 1 are micro-spot-welded.

The matrix metal foils 5 are arranged at arbitrary intervals as shown in FIG. 1 (a), and as shown in FIG. 1 (b), are arranged in a wire form so as to form a blade-shaped planar shape. The reinforcement 3 is placed perpendicular to the direction of the reinforcing fibers 2, and a plurality of the reinforcing fibers 2 are arranged at a uniform pitch in the length direction. This allows
A flat preform 6 having a blade-shaped planar shape as shown in FIG. 4B can be manufactured.

As described above, by using the flat preform 6 having the planar shape shown in FIG. 4B composed of the wire-like preform 3 and the matrix metal foil 5, the flat shape is adjusted to the final target shape of the blade shape. Or on a blade-shaped jig. By subjecting this to composite molding by hot pressing or the like, it is possible to easily produce a composite molded article having a blade shape or the like as the final target shape.

FIG. 2 is a view showing a second embodiment of the flat FRM preform according to the present invention. As in the case of the wire-shaped preform 3 shown in FIG. 1 (a), the wire-shaped preform 3, which is a reinforcing fiber 2 made of SiC, on which a matrix metal 2 made of a Ti alloy or a titanium aluminide-based intermetallic compound is deposited, is spirally formed. The matrix metal foil 5 is arranged on the wound and shaped disk of the compressor in a direction perpendicular to the direction of the reinforcing fibers 2 so that the matrix metal foil 5 and the micro-spots are arranged. Weld. Thereby, the flat plate FR which can form a rotating body such as a flat spiral disk is provided.
An M preform 3 can be manufactured.

The flat spiral FRM preform 3 thus formed is laminated to the thickness of the composite molded body in the final state, and is composite-molded by hot pressing or the like, whereby the rotor of the compressor is formed. It is possible to easily produce a composite molded article having a circular disk and a ring shape.

[0028]

As described above, the flat FR of the present invention is used.
The M preform is formed by micro-spot welding a matrix metal foil disposed orthogonally to a direction in which the wire preform is disposed and a matrix metal deposited on the outer peripheral surface of the wire preform. Since it can be formed into a flat FRM preform which is formed by disposing a wire-like preform and is kept in shape, there is no contamination of the matrix metal, and
No interfacial reaction occurs between the reinforcing fibers and the matrix metal, and the mechanical strength does not decrease.

Further, a flat FRM preform in which the wire-shaped preform has an accurate shape and in which the wire-shaped preform is accurately arranged without causing the movement of the wire-shaped preform before being integrated and compounded. As a result, it is possible to obtain a composite molded article in a final state, which is accurately shaped and has high mechanical strength. Furthermore, since a flat preform can be formed without using a hot press, the cost can be reduced without contaminating the matrix metal of the flat preform.

Further, by adopting the composite molded body manufacturing method of laminating the flat FRM preforms of the present invention and performing composite molding by hot pressing or the like, the shape of the composite molded body can be maintained. The formed molded article of any shape can be formed accurately and easily. That is, the production work of the FRM disk / FRM rotor, the FRM blade, and the like becomes easy, and the production efficiency and the production accuracy can be improved.

[Brief description of the drawings]

FIG. 1 is a view showing a first embodiment of a flat FRM preform according to the present invention, wherein FIG. 1 (a) is a cross-sectional view and FIG. 1 (b).
Is a perspective view,

FIG. 2 is a plan view showing a second embodiment of the flat FRM preform of the present invention,

FIG. 3 is a cross-sectional view showing one example of a conventional flat FRM preform.

FIG. 4 is a cross-sectional view showing another example of a conventional flat FRM preform.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Matrix metal 2 Reinforcing fiber 3 Wire-shaped preform 4 Binder 5 Matrix metal foil 6 Flat FRM preform

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Akira Fukushima 1200, Higashi-Tanaka, Komaki City, Aichi Prefecture Mitsubishi Heavy Industries, Ltd. Nagoya Guidance Propulsion System Works Co., Ltd. Advanced Material Utilization Gas Generator Laboratory Komaki Branch F-term (reference) 4K020 AA01 AA08 AC03 BA01 BA04 BA08 BB10 BB41 BC01

Claims (2)

[Claims] 1. A wire-shaped preform comprising a plurality of reinforcing fibers arranged side by side in a plane and a matrix metal deposited on an outer peripheral surface of the reinforcing fiber, and arranged in a direction perpendicular to the direction in which the wire-shaped preforms are arranged. And a matrix metal foil which is micro-spot-welded to the matrix metal and holds the shape of the wire-shaped preform in a juxtaposed plane.
M preform. 2. A wire-shaped preform comprising a plurality of reinforcing fibers arranged side by side in a plane and a matrix metal deposited on an outer peripheral surface of the reinforcing fibers, and arranged in a direction perpendicular to the direction in which the wire-shaped preforms are arranged. A flat plate forming step of forming a flat molded flat FRM preform for forming a composite molded body of any final shape by using a matrix metal foil micro-spot-welded to the matrix metal, The laminating step of laminating the molded flat plate FRM preform formed in the flat plate forming step to form the composite molded body, and the molded flat plate FRM preform formed in the final shape of the composite molded body are integrated. And a compounding step for compounding.