JPS63256260A - Production of cylindrical fiber reinforced metallic composite material - Google Patents
Production of cylindrical fiber reinforced metallic composite materialInfo
- Publication number
- JPS63256260A JPS63256260A JP8813087A JP8813087A JPS63256260A JP S63256260 A JPS63256260 A JP S63256260A JP 8813087 A JP8813087 A JP 8813087A JP 8813087 A JP8813087 A JP 8813087A JP S63256260 A JPS63256260 A JP S63256260A
- Authority
- JP
- Japan
- Prior art keywords
- core
- molten metal
- mold
- spacers
- frm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 239000002131 composite material Substances 0.000 title claims 2
- 239000000835 fiber Substances 0.000 title description 7
- 229910052751 metal Inorganic materials 0.000 claims abstract description 37
- 239000002184 metal Substances 0.000 claims abstract description 37
- 125000006850 spacer group Chemical group 0.000 claims abstract description 29
- 239000012783 reinforcing fiber Substances 0.000 claims abstract description 11
- 239000011159 matrix material Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 12
- 239000002905 metal composite material Substances 0.000 claims description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract description 5
- 239000000155 melt Substances 0.000 abstract 1
- 230000002265 prevention Effects 0.000 abstract 1
- 238000007711 solidification Methods 0.000 abstract 1
- 230000008023 solidification Effects 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910000676 Si alloy Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- -1 iron or ceramics Chemical class 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Landscapes
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
この発明は、高圧鋳造法によって筒状の繊維強化金属複
合材料（ＦＲＭ）を製造する方法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for producing a cylindrical fiber-reinforced metal composite (FRM) by high-pressure casting.
従来の技術
ＦＲＭを製造する方法はいろいろあるが、そのひとつに
高圧鋳造法がある。この方法は、金型に補強、繊維の集
合体を入れておき、その金型にマトリクスとなる金属の
溶湯を注ぎ込み、プランジャーで加圧して上記集合体に
含浸し、凝固させた後、脱型するものである。BACKGROUND OF THE INVENTION There are various methods for manufacturing FRM, one of which is high-pressure casting. In this method, a reinforcing fiber aggregate is placed in a mold, a molten metal is poured into the mold, and the matrix is impregnated with pressure using a plunger, solidified, and then desorbed. It is something to be molded.
さて、そのような高圧鋳造法を用いた筒状ＦＲＭの製造
は、たとえば特開昭６１−１７２６６６号公報ほかに記
載されているように、中子を使用し、その中子の周りに
補強繊維の集合体を配置して金型に入れ、溶湯を注ぎ込
み、加圧して集合体に含浸するようにしている。ところ
が、この方法は、中子と金型との間には補強繊維の集合
体が介在しているだけであるから、芯出しが難しいうえ
に溶湯加圧時に中子が動きやすく、肉厚が一様なＦＲＭ
を得にくいという問題がある。Now, manufacturing a cylindrical FRM using such a high-pressure casting method uses a core and reinforcing fibers around the core, as described in, for example, JP-A-61-172666 and others. The aggregate is placed in a mold, the molten metal is poured, and pressure is applied to impregnate the aggregate. However, with this method, only an aggregate of reinforcing fibers is interposed between the core and the mold, so centering is difficult, the core moves easily when pressurizing the molten metal, and the wall thickness is reduced. Uniform FRM
The problem is that it is difficult to obtain.
明が解決しようとする間６膏
この発明は、従来の方法の上記問題点を解決するもので
、その目的とするところは、肉厚の一様な筒状ＦＲＭを
製造することができる方法を提供するにある。This invention solves the above-mentioned problems of the conventional method, and its purpose is to develop a method that can manufacture a cylindrical FRM with a uniform wall thickness. It is on offer.
問題点を解決するための手段
上記目的を達成するために、この発明においては、中子
の周りに補強繊維の集合体を配置して金型に入れ、その
金型にマトリクスとなる金属の溶湯を注ぎ込み、その溶
湯を加圧して集合体に含浸し、凝固させて複合材料を得
るに際し、中子の少なくとも上端部に溶湯通過孔を有す
るスペーサを取り付け、そのスペーサによって中子の位
置を固定した後に溶湯を注ぎ込むことを特徴とする繊維
強化金属複合材料の￥Ａ造六方法提供される。Means for Solving the Problems In order to achieve the above object, in the present invention, an aggregate of reinforcing fibers is arranged around a core and placed in a mold, and a molten metal serving as a matrix is placed in the mold. A spacer having a molten metal passage hole was attached to at least the upper end of the core, and the position of the core was fixed by the spacer. Six methods of manufacturing fiber-reinforced metal composite materials are provided, which are characterized by pouring molten metal afterwards.
この発明で筒状とは、半径にくらべて長さが相当長い中
空状をいう。横断面形状は、円形であるのが普通である
が、それに限定されるものではなく、たとえば楕円形で
あってもよい。In this invention, cylindrical shape refers to a hollow shape whose length is considerably longer than its radius. The cross-sectional shape is usually circular, but is not limited to this, and may be, for example, elliptical.
また、この発明で使用する補強繊維は、ＦＲＭにおいて
、通常、使用される、たとえば炭素繊維、アルミナ繊維
、ボロン繊維、アルミナ−シリカ繊維、炭化ケイ素繊維
などの高強度、高弾性繊維である。形態は、マルチフィ
ラメント、短繊維、ウィスカー、マット、織物など、い
ずれでおってもよい。Further, the reinforcing fibers used in the present invention are high-strength, high-modulus fibers that are commonly used in FRM, such as carbon fibers, alumina fibers, boron fibers, alumina-silica fibers, and silicon carbide fibers. The form may be multifilament, short fiber, whisker, mat, woven fabric, etc.
また、集合体は、上記のような補強繊維を束ねたり、巻
いたり、あるいはプリフォーム化したようなものである
。必要に応じて、カーボン、シリカ、アルミナなどの、
いわゆる結着剤を含浸して補強繊維の集合形態がくずれ
ないようにしておく。Moreover, the aggregate is something like the above-mentioned reinforcing fibers bundled, rolled, or preformed. If necessary, carbon, silica, alumina, etc.
It is impregnated with a so-called binder to prevent the reinforcing fibers from collapsing in aggregate form.
マトリクスとなる金属は、これもまた、ＦＲＭのマトリ
クス金属として、通常、使用されている、たとえばアル
ミニウム、マグネシウム、銅、錫、鉛、亜鉛などの単体
金属や、そのような単体金属の少なくとも１種を主成分
とする合金である。The metal that becomes the matrix is also a single metal such as aluminum, magnesium, copper, tin, lead, or zinc, which is usually used as a matrix metal in FRM, or at least one kind of such single metal. It is an alloy whose main component is
中子としては、鉄、銅、ニッケル、アルミニウム、チタ
ンなどの単体金属や、これら単体金属の少なくとも１種
を主成分とする合金など、製造されるＦＲＭよりも熱膨
服率が大きな材料からなるものを使用するのが好ましい
。The core is made of a material with a higher coefficient of thermal expansion than the FRM being manufactured, such as a single metal such as iron, copper, nickel, aluminum, or titanium, or an alloy containing at least one of these single metals as a main component. It is preferable to use
スペーサは、中子を金型の中心位置に正しく固定し、中
子の芯出しを行うもので、通常、鉄などの金属や、セラ
ミックス等の、マトリクスとなる金属と反応せず、かつ
その金属よりも融点の高い材料からなっている。しかし
て、スペーサは、金型に注ぎ込まれた溶湯が通過し、集
合体に含浸されるように、スリットや孔などからなる溶
湯通過孔を描えている。A spacer is used to correctly fix the core at the center of the mold and to center the core, and it usually does not react with metals such as iron or ceramics, which form the matrix, and It is made of a material with a higher melting point. Thus, the spacer has a molten metal passage hole formed of a slit or hole so that the molten metal poured into the mold passes through and is impregnated into the aggregate.
第３〜８図は、そのようなスペーサの一例を示すもので
ある。すなわち、第３〜６図に示すスペーサ１は、全体
として円板状をしていて、中心部には位置決め孔２が設
けられ、その周囲に多数の溶湯通過孔３が等配されてい
る。また、第７図に示すものは、腕４を等配し、それら
腕４同士の間が溶湯通過孔を形成するようにしたもので
ある。Figures 3-8 show an example of such a spacer. That is, the spacer 1 shown in FIGS. 3 to 6 has a disk shape as a whole, and a positioning hole 2 is provided in the center, and a large number of molten metal passage holes 3 are equally distributed around the positioning hole 2. Moreover, in the one shown in FIG. 7, the arms 4 are arranged equally, and the molten metal passage holes are formed between the arms 4.
ざらに、第８図に示すものは、独立した多数の短冊状の
腕４の組み合せからなるものである。なお、第３図〜第
７図に示すスペーサにおいて、位置決め孔に代えて中心
部にねじを通す孔を設けてもよい。Roughly speaking, the one shown in FIG. 8 is made up of a combination of a large number of independent strip-shaped arms 4. In addition, in the spacer shown in FIGS. 3 to 7, a hole for passing a screw may be provided in the center instead of the positioning hole.
上記のようなスペーサは、中子の上端部と下端部の双方
に取り付けるのが好ましいが、上端部のみとすることも
できる。上端部のみとする場合には、中子の下端部は金
型の台座を利用して固定するようにする。しかして、ス
ペーサの中子への取り付けは、位置決め孔を中子に嵌合
させたり、位置決め孔にタップ加工を施し、一方中子に
雄ねじを加工し、両ねじを螺合させることによって行っ
たり、ねじを通す孔を有するものにあっては中子にタッ
プ加工を施し、ねじ止めにより行うことができる。また
、溶接やろう付けによって行うこともできる。要するに
、中子を動かないように固定すればよい。It is preferable that the above-mentioned spacers be attached to both the upper end and the lower end of the core, but they can also be attached only to the upper end. If only the upper end is used, the lower end of the core is fixed using the pedestal of the mold. Therefore, the spacer can be attached to the core by fitting the positioning hole into the core, or by tapping the positioning hole, machining a male thread in the core, and screwing both screws together. If the hole has a hole for passing a screw, this can be done by tapping the core and fixing it with a screw. It can also be done by welding or brazing. In short, it is sufficient to fix the core so that it does not move.
この発明を図面に基いてざらに詳細に説明するに、第１
図は、この発明の方法によって筒状ＦＲＭを製造してい
る様子を示すもので、丸棒状の中子５の周りに補強繊維
の集合体６が配置され、金型７内に入れられている。上
記中子５の上端部および下端部には、上記第３〜７図に
示したようなスペーサ１が、その位置決め孔に加工した
雌ねじを中子５に設けた雄ねじに螺合させることによっ
て取り付けられ、中子５を固定している。To roughly explain this invention in detail based on the drawings, the first
The figure shows how a cylindrical FRM is manufactured by the method of the present invention, in which a reinforcing fiber aggregate 6 is arranged around a round rod-shaped core 5 and placed in a mold 7. . Spacers 1 as shown in FIGS. 3 to 7 are attached to the upper and lower ends of the core 5 by screwing female threads machined into the positioning holes into male threads provided on the core 5. and fixes the core 5.
さて、金型７内に、マトリクスとなる金属の溶湯８を注
ぎ込み、プランジャー９で加圧する。すると、溶湯８が
スペーサ１の溶湯通過孔を通って集合体６に含浸される
。溶湯８が凝固した後、ずなわちＦＲＭが得られた後は
、金型７と台座１０とを分離し、ＦＲＭをスペーサ１お
よび中子５ごと金型７から取り出ず。しかる後、スペー
サ１を取り除き、さらに中子５を法人する。すると、筒
状のＦＲＭが１ｑられる。Now, a molten metal 8 serving as a matrix is poured into the mold 7 and pressurized with a plunger 9. Then, the molten metal 8 passes through the molten metal passage hole of the spacer 1 and is impregnated into the aggregate 6. After the molten metal 8 is solidified, that is, after the FRM is obtained, the mold 7 and the pedestal 10 are separated, and the FRM is not removed from the mold 7 together with the spacer 1 and the core 5. After that, the spacer 1 is removed and the core 5 is incorporated. Then, 1q of the cylindrical FRM is removed.
第２図に示す方法は、上記第１図に示した方法において
、スペーサ１として中心部にねじ用の孔を有するものを
用い、それをねじ１１によって中子５に取り付けたもの
である。The method shown in FIG. 2 differs from the method shown in FIG. 1 in that a spacer 1 having a screw hole in the center is used, and the spacer 1 is attached to the core 5 with screws 11.
以下、実施例に基いてこの発明をざらに詳細に説明する
。Hereinafter, the present invention will be roughly described in detail based on Examples.
実施例
直径２５ｍｍ、長さ１０００ｍｍの鉄製中子に、東し株
式会社製炭素繊維“トレカ゛の平織物ＣＢ６３４３を２
層に巻き付りた後、第１図に示すように金型に入れた。Example: Two sheets of plain fabric CB6343 from Toshi Co., Ltd.'s carbon fiber "Train Card" were placed on an iron core with a diameter of 25 mm and a length of 1000 mm.
After wrapping into layers, it was placed into a mold as shown in FIG.
次に、金型を５５０℃に予熱した後、その金型にアルミ
ニウムとケイ素の合金（ＪＩＳ ＡＣ４Ｃ）の溶湯（
温度＝７５０℃）を注ぎ込み、プランジャーで５００Ｋ
ｇ／Ｃｍ２の圧力を加えて集合体に含浸した。Next, after preheating the mold to 550°C, a molten metal of aluminum and silicon alloy (JIS AC4C) (
temperature = 750℃) and heated to 500K with a plunger.
A pressure of g/Cm2 was applied to impregnate the mass.
溶湯が凝固した後、金型と台座とを分離し、ＦＲＭをス
ペーサおよび中子ごと取り出し、スペーサを取り除き、
中子を後人したところ、肉厚が極めて一様で、偏肉のな
い筒状ＦＲＭが得られた。After the molten metal solidifies, the mold and pedestal are separated, the FRM is taken out with the spacer and core, the spacer is removed,
When the core was removed, a cylindrical FRM with extremely uniform wall thickness and no uneven thickness was obtained.
ｌ孔０四里
この発明は、中子の少なくとも上端部に溶湯通過孔を有
するスペーサを取り付け、そのスペーサによって中子の
位置を固定した後に溶湯を注ぎ込むから、中子の芯出し
が極めて容易になるばかりか、溶湯加圧時における中子
の移動を防止することができ、肉厚が一様で偏りのない
筒状ＦＲＭを得ることができるようになる。In this invention, a spacer having a molten metal passage hole is attached to at least the upper end of the core, and the molten metal is poured after the position of the core is fixed by the spacer, making it extremely easy to center the core. In addition, it is possible to prevent the core from moving when pressurizing the molten metal, and it is possible to obtain a cylindrical FRM with uniform wall thickness and no deviation.
第１図および第２図は、それぞれ異なるスペーサの取付
方法を採用してこの発明の方法を実施している様子を示
す概略縦断面図、第３〜８図は、それぞれこの発明で使
用するスペーサを示す概略平面図である。
１ニスペーサ
２：位置決め孔
３：溶湯通過孔
４：腕
５：中子
６：補強繊維の集合体
７：金型
８：金属の溶湯
９：プランジや−
１０：台座
１１：ねじ1 and 2 are schematic vertical cross-sectional views showing how the method of the present invention is carried out by adopting different spacer mounting methods, and FIGS. 3 to 8 respectively show spacers used in the present invention. FIG. 1 Varnish spacer 2: Positioning hole 3: Molten metal passage hole 4: Arm 5: Core 6: Reinforcing fiber aggregate 7: Mold 8: Molten metal 9: Plunge or - 10: Pedestal 11: Screw
Claims (1)
その金型にマトリクスとなる金属の溶湯を注ぎ込み、そ
の溶湯を加圧して前記集合体に含浸し、凝固させて複合
材料を得るに際し、前記中子の少なくとも上端部に溶湯
通過孔を有するスペーサを取り付け、そのスペーサによ
って中子の位置を固定した後に溶湯を注ぎ込むことを特
徴とする筒状繊維強化金属複合材料の製造方法。A collection of reinforcing fibers is placed around the core and placed in a mold.
A molten metal to be a matrix is poured into the mold, and when the molten metal is pressurized to impregnate the aggregate and solidify to obtain a composite material, a spacer having a molten metal passage hole is provided at least at the upper end of the core. A method for manufacturing a cylindrical fiber-reinforced metal composite material, characterized by pouring molten metal after attaching the core and fixing the position of the core using a spacer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8813087A JPS63256260A (en) | 1987-04-10 | 1987-04-10 | Production of cylindrical fiber reinforced metallic composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8813087A JPS63256260A (en) | 1987-04-10 | 1987-04-10 | Production of cylindrical fiber reinforced metallic composite material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63256260A true JPS63256260A (en) | 1988-10-24 |
Family
ID=13934339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8813087A Pending JPS63256260A (en) | 1987-04-10 | 1987-04-10 | Production of cylindrical fiber reinforced metallic composite material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63256260A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004039306A1 (en) * | 2004-08-12 | 2006-02-23 | Bayerische Motoren Werke Ag | Process to manufacture automotive crankcase with embedded supra-eutectic lightweight metal containing silicon |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5223854A (en) * | 1975-08-15 | 1977-02-23 | Oji Paper Co Ltd | Two-stage disposal process of pulp drainage |
| JPS60130460A (en) * | 1983-12-16 | 1985-07-11 | Kubota Ltd | Production of heat insulating composite pipe |
| JPS61172666A (en) * | 1985-01-25 | 1986-08-04 | Izumi Jidosha Kogyo Kk | Production of fiber reinforced cylindrical member |
-
1987
- 1987-04-10 JP JP8813087A patent/JPS63256260A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5223854A (en) * | 1975-08-15 | 1977-02-23 | Oji Paper Co Ltd | Two-stage disposal process of pulp drainage |
| JPS60130460A (en) * | 1983-12-16 | 1985-07-11 | Kubota Ltd | Production of heat insulating composite pipe |
| JPS61172666A (en) * | 1985-01-25 | 1986-08-04 | Izumi Jidosha Kogyo Kk | Production of fiber reinforced cylindrical member |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004039306A1 (en) * | 2004-08-12 | 2006-02-23 | Bayerische Motoren Werke Ag | Process to manufacture automotive crankcase with embedded supra-eutectic lightweight metal containing silicon |
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