JPH08206754A - Working jig - Google Patents
Working jigInfo
- Publication number
- JPH08206754A JPH08206754A JP3285495A JP3285495A JPH08206754A JP H08206754 A JPH08206754 A JP H08206754A JP 3285495 A JP3285495 A JP 3285495A JP 3285495 A JP3285495 A JP 3285495A JP H08206754 A JPH08206754 A JP H08206754A
- Authority
- JP
- Japan
- Prior art keywords
- jig
- carbon
- composite material
- jigs
- processing
- 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
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 16
- 239000002131 composite material Substances 0.000 claims abstract description 16
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 6
- 239000004917 carbon fiber Substances 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 238000001513 hot isostatic pressing Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 3
- 238000005219 brazing Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000002184 metal Substances 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000000463 material Substances 0.000 description 6
- 229910002804 graphite Inorganic materials 0.000 description 5
- 239000010439 graphite Substances 0.000 description 5
- 238000003754 machining Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 238000009694 cold isostatic pressing Methods 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910001315 Tool steel Inorganic materials 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910000997 High-speed steel Inorganic materials 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は金属等の機械加工、熱加
工等に用いる治具に関する。更に詳しくは、炭素系複合
材料で構成された加工用の治具に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jig used for mechanical processing, heat processing and the like of metals and the like. More specifically, the present invention relates to a processing jig made of a carbon-based composite material.
【０００２】[0002]
【従来の技術】機械加工等で用いる加工用の治具は、製
品の位置決めや支持又は工具の案内等に用いられ、多く
は高速度鋼、工具鋼等の金属で構成されている。2. Description of the Related Art Jigs for machining used in machining and the like are used for positioning and supporting products or guiding tools, and are mostly made of metal such as high speed steel and tool steel.
【０００３】金属等の機械加工、熱加工は当然のことな
がら機械的な歪みを伴ったり高温度下、時には腐食性雰
囲気下で行われることが多く、通常の金属で構成された
治具は、耐熱性、耐腐食性には比較的優れているもの
の、熱膨張係数が比較的大きく、重量も大きいので取扱
いの面で必ずしも充分なものとは言えない。Mechanical processing and thermal processing of metals and the like are naturally performed with mechanical strain, under high temperature and sometimes in a corrosive atmosphere, and jigs made of ordinary metals are Although it is relatively excellent in heat resistance and corrosion resistance, it is not always sufficient in terms of handling because it has a relatively large coefficient of thermal expansion and a large weight.
【０００４】近時、取扱う製品の精密化が進み、これに
伴って高い寸法安定性が求められているが、必然的にこ
れら製品の加工に用いる治具も高性能なものが要求され
るようになっている。Recently, the precision of the products to be handled has advanced, and along with this, high dimensional stability has been demanded. However, it is inevitable that jigs used for processing these products are also required to have high performance. It has become.
【０００５】又、熱間静水圧力プレス（ＨＩＰ）加工
は、不活性ガス加圧下で加熱し、材料（品物）の接合や
欠陥を除去する処理法で、加熱炉（ＨＩＰ炉）に品物を
封入して行うが、この際用いる治具は主としてオーステ
ナイト系の鋼で構成した金属製治具、ムライト質セラミ
ックを用いたセラミック製治具、冷間等方加工プレス
（ＣＩＰ）による成形グラファイトを用いたグラファイ
ト製治具がある。これらの内、金属製治具は重量が大で
あり必然的に処理量が制限される。又、セラミック製治
具、グラファイト製治具は軽量であり従って処理量は金
属製治具を用いる場合に比較して大となるが、これらの
治具は従来の比較的小型の加熱炉用の治具としては、治
具そのものの制作は容易である。しかし、近時使用され
るような大型のＨＩＰ炉用としてはその制作に制限があ
る。特に、グラファイト製治具はＣＩＰ成形により制作
されるので大型治具の制作は困難であり、又、機械的強
度につも限度がある。Further, hot isostatic pressing (HIP) processing is a processing method of heating under an inert gas pressure to remove bonding and defects of materials (items), and the items are enclosed in a heating furnace (HIP furnace). The jigs used at this time were mainly metal jigs made of austenitic steel, ceramic jigs using mullite ceramics, and molded graphite by cold isostatic pressing (CIP). There is a jig made of graphite. Among these, the metal jig has a large weight and the processing amount is necessarily limited. Further, the ceramic jig and the graphite jig are light in weight, and therefore the processing amount is large as compared with the case where the metal jig is used, but these jigs are used for the conventional relatively small heating furnace. As a jig, it is easy to make the jig itself. However, its production is limited for a large HIP furnace that is used recently. In particular, since graphite jigs are manufactured by CIP molding, it is difficult to manufacture large jigs, and mechanical strength is also limited.
【０００６】[0006]
【発明が解決しようとする課題】本発明の目的は、精密
で精度が要求される品物（材料、製品等）の加工に適用
でき、軽量で取扱いの容易な加工用の治具を提供するこ
とにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a jig for processing that can be applied to the processing of a product (material, product, etc.) that requires precision and accuracy, and that is lightweight and easy to handle. It is in.
【０００７】[0007]
【課題を解決するための手段】本発明者らは上記課題を
解決するために、取扱う製品に応じた治具につき種々の
材料を検討した結果、炭素系の材質で構成されたものは
上記目的を充分満足するとの知見を得て本発明を完成し
た。In order to solve the above-mentioned problems, the present inventors have studied various materials for jigs according to products to be handled, and as a result, those made of carbon-based materials have the above-mentioned objects. The present invention has been completed based on the finding that the above is sufficiently satisfied.
【０００８】即ち本発明は、炭素繊維で強化された炭素
系複合材料で構成された加工用治具に関するものであ
る。That is, the present invention relates to a processing jig composed of a carbon-based composite material reinforced with carbon fibers.
【０００９】次に本発明をさらに詳細に説明する。本発
明を特徴付ける治具の材質は、炭素繊維で強化された炭
素系複合材料（以下炭素系複合材料と略称する）であ
る。Next, the present invention will be described in more detail. The material of the jig that characterizes the present invention is a carbon-based composite material reinforced with carbon fibers (hereinafter abbreviated as carbon-based composite material).
【００１０】本発明を構成する炭素系複合材料は、炭素
繊維に炭化水素系の樹脂又はタール、ピッチ等を含侵さ
せたものを１０００〜２０００℃で焼成しこれらを炭化
する方法、又は、高温度に保持した炭素繊維にメタンな
どの低級炭化水素を接触させ炭化すると同時に繊維にこ
れを付着させる方法などで得た複合材料であり、本発明
の治具は、これを加圧法などの方法で目的とする形状に
成型したものである。The carbon-based composite material constituting the present invention is a method of carbonizing carbon resin impregnated with a hydrocarbon-based resin, tar, pitch, etc. at 1000 to 2000 ° C. to carbonize them, or The jig of the present invention is a composite material obtained by a method of contacting a lower hydrocarbon such as methane with a carbon fiber kept at a temperature to carbonize it and at the same time attaching it to the fiber. It is molded into the desired shape.
【００１１】本発明で用いる炭素系複合材料の組成は、
特に限定されるものでなく繊維の含有率が約２０〜５０
% 程度の複合材料で良い。The composition of the carbon-based composite material used in the present invention is
There is no particular limitation, and the fiber content is about 20 to 50.
A composite material of about% is sufficient.
【００１２】このようにして得た炭素系複合材料は比重
が１．５〜２．０程度で非常に軽量であり、圧縮強度、
曲げ強度も夫々２０〜２５ Kg/mm2 、３０ Kg/mm2 以上
で充分な強度を示す。又、熱膨張係数も１．１×１０-6
/℃程度と非常に小さい。The carbon-based composite material thus obtained has a specific gravity of about 1.5 to 2.0 and is extremely lightweight, and has a compressive strength,
Bending strengths of 20 to 25 Kg / mm 2 and 30 Kg / mm 2 or more, respectively, show sufficient strength. Also, the coefficient of thermal expansion is 1.1 × 10 -6
Very small, about / ° C.
【００１３】本発明の治具は精密加工を必要とする機械
部品の加工などにも用いられるが、次に、自動車のオー
トマチックトランスミッション部品の加工の際使用する
治具を例として本発明をさらに詳述する。The jig of the present invention is also used for machining of mechanical parts that require precision machining. Next, the present invention will be described in more detail by taking a jig used for machining automatic transmission parts of automobiles as an example. I will describe.
【００１４】このトランスミッション部品は自動車部品
中でもバネ特性と芯円度の精密さを要求される部品であ
るが、この部品を加工する際に用いる治具は、図１に示
すように外周の上部に段差（図中２）を持つ外径が約１
２０mm、内径約９５mmで、幅（高さ）が約４３mm程度の
筒状の治具（図中１）（治具Ａ）と、図２に示すよう
に、合わせて円筒状となる４片（図中３）からなり、こ
れらを合わせて形成した円筒の内部に治具Ａを嵌合・挟
持する形状の治具（治具Ｂ）とで１対とした治具であ
る。This transmission part is a part that is required to have spring characteristics and precision of concentricity even in automobile parts. The jig used for processing this part is the upper part of the outer periphery as shown in FIG. Outer diameter with step (2 in the figure) is about 1
A cylindrical jig (1 in the figure) (jig A) having a width (height) of about 20 mm, an inner diameter of about 95 mm, and a width of about 43 mm, and four pieces that form a cylindrical shape as shown in FIG. 2 ( 3) in the figure, and is a pair with a jig (jig B) having a shape for fitting and sandwiching the jig A inside a cylinder formed by combining them.
【００１５】このような治具Ａ・Ｂは、例えば炭素繊維
５０% 含有する炭素系複合材料を夫々の形状に加工し、
１０００〜２０００℃、１〜１０気圧程度のホットプレ
ス加工により得られる。Such jigs A and B are produced by processing carbon composite materials containing, for example, 50% carbon fiber into respective shapes,
It is obtained by hot pressing at 1000 to 2000 ° C. and 1 to 10 atmospheres.
【００１６】得られた治具の特性は次のとおりであっ
た。即ち、密度：１．７g/cm3 、圧縮強度：２５ Kg/mm
2 、曲げ強度：４０ Kg/mm2 、熱膨脹係数：１．１×１
０-6 /℃。又、高温強度が１０００℃で１８ Kg/mm2 で
あり、ステンレススチール（ＳＵＳ３０４）が同温度で
８ Kg/mm2 であるのに比較して極めて高い。The characteristics of the obtained jig were as follows. That is, density: 1.7 g / cm 3 , compressive strength: 25 Kg / mm
2 , bending strength: 40 Kg / mm 2 , coefficient of thermal expansion: 1.1 x 1
0 -6 / ° C. Further, the high temperature strength is 18 Kg / mm 2 at 1000 ° C., which is extremely higher than that of stainless steel (SUS304) at the same temperature of 8 Kg / mm 2 .
【００１７】この治具を用いて、トランスミッション部
品の熱加工を実施した。即ち、４５０℃で９０分処理し
た結果、充分満足な芯円度が得られた。ちなみに従来か
ら用いられている治具（工具鋼製）では、同様の芯円度
を得るのに２倍以上の熱加工時間が必要であった。Using this jig, thermal processing of transmission parts was carried out. That is, as a result of treatment at 450 ° C. for 90 minutes, a sufficiently satisfactory roundness was obtained. By the way, in the conventionally used jig (made of tool steel), it took more than twice the heat processing time to obtain the same roundness.
【００１８】次に、ＨＩＰ炉に用いる治具の例について
詳述する。この治具は種々の形状のものがあるが、例え
ば棚段形状のものは、ＨＩＰ炉（内径１２００φmm、高
さ２２００mm）の内部に装入することができる大きさ
で、脚部（径１１７０φmm）と棚部（１０８０φmm×６
０mm、高さ５００mm）で構成されたものである。Next, an example of a jig used in the HIP furnace will be described in detail. There are various shapes of this jig. For example, the shape of a shelf is a size that can be loaded inside a HIP furnace (internal diameter 1200 mm, height 2200 mm), and legs (diameter 1170 mm). And shelf (1080φmm × 6
0 mm, height 500 mm).
【００１９】用いた炭素系複合材料は上記したと同様の
材料を用いた。このものと、従来のオーステナイト系の
鋼で構成した同形状の金属製治具とを比較すると、その
重量は約１／３であり、従って単純比較では従来のもの
に比較して約１．５倍の品物がＨＩＰ炉に封入可能とな
る。The carbon-based composite material used was the same material as described above. When this is compared with a conventional metal jig made of austenitic steel and having the same shape, its weight is about 1/3, and therefore, in a simple comparison, it is about 1.5 compared to the conventional one. Double items can be enclosed in HIP furnace.
【００２０】金属治具は高温度で使用すると、処理品の
荷重によりクリープ変形するが、炭素系複合材料で構成
したＨＩＰ用の治具は、前記したように素材の高温強度
が高いのでＨＩＰ処理時の変形・伸縮がなく、ＨＩＰ炉
の内容積の有効利用が可能である。又、ＣＩＰ成形のグ
ラファイト治具に比較して大型の治具の形成が可能であ
り、機械的強度についても、曲げ強度で約３倍、引張強
度で約１０倍以上である。When a metal jig is used at a high temperature, it is creep-deformed due to the load of the processed product, but the HIP jig made of a carbon composite material has a high temperature strength of the material as described above, so that the HIP treatment The internal volume of the HIP furnace can be effectively used without any deformation or expansion or contraction. Further, it is possible to form a larger jig as compared with a graphite jig for CIP molding, and the mechanical strength is about 3 times as much as bending strength and about 10 times or more as tensile strength.
【００２１】[0021]
【発明の効果】本発明の治具は、これを構成する炭素系
複合材料の持つ特性、例えば、熱膨脹係数が小であるの
で、これを用いた熱加工時の変形が抑制でき、熱伝導性
に優れているので特にこれを用いた熱加工時の熱効率が
良く熱加工時間を短縮できる。又、密度が比較的小さ
く、従来のものに比較して重量が１／３〜１／５と軽量
であるので、取扱いが容易であり作業性が向上しこれを
用いて処理する量が大幅に増加する。特にＨＩＰ炉用の
治具として重量、強度面で優れており、更に、耐蝕性に
優れているので治具としての寿命が長い等の特徴があ
る。EFFECTS OF THE INVENTION The jig of the present invention has a small characteristic of the carbon-based composite material constituting it, for example, a small coefficient of thermal expansion. Since it is excellent in heat efficiency, heat efficiency can be particularly improved during heat processing using this and heat processing time can be shortened. In addition, since the density is relatively small and the weight is 1/3 to 1/5 that of the conventional one, it is easy to handle and the workability is improved. To increase. In particular, a jig for a HIP furnace is excellent in weight and strength, and further has excellent corrosion resistance and thus has a long life as a jig.
【図１】本発明の一実施態様の治具ＡのＡ−Ａ´での断
面図（ａ）及び平面図（ｂ）FIG. 1 is a sectional view (a) and a plan view (b) taken along line AA ′ of a jig A according to an embodiment of the present invention.
【図２】本発明の一実施態様の治具ＢのＡ−Ａ´での断
面図（ａ）及び平面図（ｂ）FIG. 2 is a sectional view (a) and a plan view (b) taken along the line AA ′ of the jig B according to the embodiment of the present invention.
１：治具Ａの本体 ２：治具Ａの段差部分 ３：治具Ｂの一片 1: Main body of jig A 2: Step portion of jig A 3: Piece of jig B
Claims (4)
成された加工用治具。1. A processing jig made of a carbon-based composite material reinforced with carbon fibers.
治具。3. The jig according to claim 1, which is used for brazing.
又は２記載の治具。4. The method for hot isostatic pressing as claimed in claim 1.
Alternatively, the jig described in 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3285495A JPH08206754A (en) | 1995-01-31 | 1995-01-31 | Working jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3285495A JPH08206754A (en) | 1995-01-31 | 1995-01-31 | Working jig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08206754A true JPH08206754A (en) | 1996-08-13 |
Family
ID=12370434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3285495A Pending JPH08206754A (en) | 1995-01-31 | 1995-01-31 | Working jig |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08206754A (en) |
-
1995
- 1995-01-31 JP JP3285495A patent/JPH08206754A/en active Pending
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