JPS5893560A - Production of composite fibrous metallic material - Google Patents

Abstract

PURPOSE:To produce a composite fibrous metallic material which is infiltrated with molten metal among fibers and is easy to machine by setting fiber moldings molded in conformity with the shapes of the reinforcing parts and machining parts of products in dies and casting the products. CONSTITUTION:In producing pistons for diesel engines, etc., first fiber moldings 1 which are formed into a torus shape in conformity with the shapes of the parts to be reinforced of products and are formed with annular grooves 1a in the outside circumferential parts in conformity with the parts to be machined away after working are produced by using fibers of ceramics, metals, etc. After such fiber moldings 1 are set in dies 2 by bringing the outside circumferential surfaces thereof into tight contact with the inside surfaces of the dies 2, a melt of aluminum or the like is filled in cavities 3, and the melt is pressurized so as to be infiltrated in the moldings 1, whereby the melt is cast. The casting is machined along the working lines B and the grooves 1a are machined by spacings (m), (n), whereby the product is obtained.

Description

【発明の詳細な説明】 本発＠は、例えばディーゼルエンジン用ピストンなどに
適用される、セラミックスあるいはガラス等の繊維から
なる繊維成形体を複合した繊維複合金属材料の製造方法
に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a fiber composite metal material, which is applied to, for example, a piston for a diesel engine, and which is a composite of a fiber molded body made of fibers such as ceramics or glass.

繊維成形体を鋳包んで繊維複合金属材料を製造する場合
において、従来、その繊維成形体の形状については充分
考慮されておらず、簡単な直方体、円柱体状のものが使
用されてい良。例えばピストンを製造する場合において
は、簡単な断面矩形のリング状の繊−成形体が使用され
ておシ、従来はこのような繊維成形体を金型内の所定位
置にセットして鋳造した後、この繊維強化部分を切削し
てリング溝を形成していた。When manufacturing a fiber composite metal material by casting a fiber molded body, conventionally, the shape of the fiber molded body has not been sufficiently considered, and a simple rectangular parallelepiped or cylindrical shape has been used. For example, when manufacturing pistons, a simple ring-shaped fiber molded body with a rectangular cross section is used. Conventionally, such a fiber molded body is set in a predetermined position in a mold and then cast. , this fiber-reinforced portion was cut to form a ring groove.

しかしながら、このように繊維成形体を金型内に位置さ
せて加圧鋳造した場合、繊維成形体のａｍ空気は成形体
の中心部および金製に接している部分に逃れるため、こ
れらの部分への湯廻シか悪く、溶湯が浸透しにくいとい
う欠点があった。また、繊維強化部分を切陶加工する場
合において、［Ｋ＜い繊―強化部の加工代が多いという
問題が参った。However, when the fiber molded body is placed in the mold and pressure cast, the am air of the fiber molded body escapes to the center of the molded body and the part that is in contact with the metal. The problem was that the water circulation was poor and the molten metal did not penetrate easily. In addition, when cutting the fiber-reinforced part, there is a problem that the processing cost for the fiber-reinforced part is large.

本発明は上ε問題を解決するためのもので、繊−成形体
鋳包み部の製品形状を考慮し、溶−が十分に繊維成形体
内に浸透し、繊＃ＩＡ強化部の切側加工を容易にし九繊
維複合金属材料の製造方法を提供することを目的とする
。The present invention is intended to solve the above ε problem, and takes into consideration the product shape of the cast-in part of the fiber molded body, so that the melt can sufficiently penetrate into the fiber molded body, and the cutting side processing of the fiber #IA reinforced part can be carried out. The purpose of the present invention is to provide a method for easily producing nine-fiber composite metal materials.

本発明は、製品の補強したい部位の形状に合わせて、か
つ、加工後［取られる部分に合わせて繊維成形体を成形
し、該繊ｍ成形体を金製円の所定位置にセットし良後鋳
造することを一特徴とする繊維複合金属材料の製造方法
である。The present invention involves forming a fiber molded body according to the shape of the part of the product to be reinforced and after processing [according to the part to be removed], and setting the fiber molded body at a predetermined position on a metal circle. This is a method for manufacturing a fiber composite metal material, which is characterized by casting.

以下、本発明の実施例を図に従って説明する。Embodiments of the present invention will be described below with reference to the drawings.

ディーゼルエンジン用などのピストンを本発明方法で製
造する場合には、ます嬉１図のようＫ、セラミックス、
金属等の繊維を用いて製品の補強したい部位の珍状に合
わせて８穣状に、かつ、加工後＃％ＩＪＩＩｊられる部
分に合わせて外周部にｉ状の壽１ａを形成した繊維成形
体１を製造する。ついで、該繊維成形体１を、第２図に
示すように＄　１　ａ　を形成し友外ｍ面を金蓋２内函
に密接させて金ｍ２円の所定位置にセットした後、キャ
ビティ５に、アルミニ９ムなどの溶湯を充填し、溶湯を
加圧して繊維成形体１内に浸透させて鋳造する。When manufacturing pistons for diesel engines etc. by the method of the present invention, K, ceramics,
A fiber molded article 1 made of metal fibers and formed into an 8-square shape according to the unusual shape of the part to be reinforced in the product, and an i-shaped cross 1a on the outer periphery according to the part to be #%IJIIj after processing. Manufacture. Next, as shown in FIG. 2, the fiber molded body 1 is formed into $ 1 a and the outer m surface is brought into close contact with the inner box of the metal lid 2, and after setting it in a predetermined position of the metal lid 2, it is placed in the cavity 5. The molded fiber body 1 is filled with a molten metal such as , aluminum, etc., and the molten metal is pressurized to penetrate into the fiber molded body 1 and cast.

この場合、第２ＩｉＫ示した繊維成形体１の新曲寸法（
例えば、縦１０■×横’Ｉ　Ｑ　ｗｍ　）と同一寸法の
従来の繊維成形体１′ｔ−使用する場合（菖５図参照）
Ｋ６つては、嬉３図中金蓋２円画と点線ムとで囲まれた
部分には溶湯の浸透が悪かつたが、本実施例のものでは
、＄　１　ａ　Ｋよって中心部が空洞であるため、溶湯
は繊維成形体１の残留空気を溝１ａに逃がしながら繊維
成形体１の外殻部から中心部に向けて浸透し、しかして
繊維成形体１全体にわたって工く浸透する。In this case, the new dimensions (
For example, when using a conventional fiber molded body 1't- of the same dimensions as 10 cm long x 1 Q wm wide (see Figure 5)
In the case of K6, the penetration of the molten metal was poor in the area surrounded by the 2nd circular image of the metal lid in Figure 3 and the dotted line, but in the case of this example, the center was hollow due to $1aK. Therefore, the molten metal permeates from the outer shell of the fiber molded body 1 toward the center while letting residual air in the fiber molded body 1 escape into the grooves 1a, and thus penetrates throughout the fiber molded body 1.

なお、籐２図および７１１３図に゛おいて、一点鎖麹Ｂ
は加工線を示し、加工ｇｉｌＢと金ｆｆ１２の内山とで
ｍまれるＩＩＩ！＃成形体１の部分は加工後削り取られ
る部分を示す、この耐９取られる部分の範囲は、例えば
籐２図において、間隔ｔが１園、間隔ｍが５〜４■、間
ａｍが６−位の範−である。In addition, in Figure 2 and Figure 7113, one-point chain koji B
indicates the processing line, and is marked by the processing gilB and gold ff12 Uchiyama III! # The part of the molded body 1 indicates the part to be scraped off after processing.The range of this part to be removed is, for example, in Fig. 2 of Rattan 2, the interval t is 1 inch, the interval m is 5 to 4 cm, and the interval am is 6 - It is the range of rank.

このようにして鋳造された製品は、加工線Ｂに沿って切
削加工される。The thus cast product is cut along machining line B.

したがって、以上述べたような繊細複合金属材料の製造
方法によれは、繊維成形体を金製内：、；・ の所定位置にセットした後鋳造する場合に、繊維成形体
に形成された溝等の加工後帛夛取られる部分に合わせた
形状によって、繊−成形体全体Ｋ１１ｌ湯を充分に浸透
させることができ、品質を向土適せた製品を得ることが
できる。を良。Therefore, depending on the manufacturing method of delicate composite metal materials as described above, when casting the fiber molded body after setting it in a predetermined position in the metal interior, grooves etc. formed in the fiber molded body may be removed. By adjusting the shape to match the part to be removed after processing, the K11L hot water can be sufficiently permeated throughout the fiber-formed body, and a product with quality suitable for the soil can be obtained. Good.

鋳造後に切削加工する際、削シにくい繊維強化′部の加
工代ｆ：従来のものに比べて少なくしたため、加工し易
く、しかして加工刃具等の鋳金を嬌ばすことができると
いう著大な効果を奏する。When machining after casting, the machining allowance f of the fiber-reinforced part, which is difficult to cut, is smaller than that of conventional products, making it easier to process and has the great effect of making it possible to use cast metal for processing tools, etc. play.

【図面の簡単な説明】[Brief explanation of the drawing]

＃１１図は本発明方法で使用する繊維成形体を示す斜視
図、 １１２１１ｍはｊ１１図のものを金星内の所定位置にセ
ットした状態を示す一優断函図、 第５図は従来”の繊維成形体を金蓋内の所定位置にセッ
トした状ｍを示す一部断一図で番る。 図中、　　　　゛ １・・・繊維成形体　　　１ａ−・壽 ２・・・金　臘　　　　　　Ｓ−・キ′ヤビテイ”゛”
（はか１名） ｔ／ｌ！３ ａ 才２図　　　　　２３図Figure #11 is a perspective view showing the fiber molded body used in the method of the present invention, 11211m is a cut-away box diagram showing the thing in Figure j11 set in a predetermined position in Venus, and Figure 5 is a conventional fiber. This is a partially cutaway diagram showing the molded body set in a predetermined position inside the metal lid. ′Yabitei”゛”
(1 person) t/l! 3 a Year 2 Figure 23

Claims (1)

【特許請求の範囲】[Claims] （１）　　製品の補強したい部位の形状に合わせて、か
つ、加工ｕｉｔＡ４１り取られる部分に合ゎせて繊維成
形体を成形し、該繊維成形体を金製内の所定位置にセッ
トした後鋳造することを特徴とする繊維複合金属材料の
製造方法。(1) A fiber molded body is molded to match the shape of the part of the product to be reinforced and the part to be removed, and the fiber molded body is set in a predetermined position within a metal molding, and then cast. A method for producing a fiber composite metal material.