JPH0456794B2 - - Google Patents
Info
- Publication number
- JPH0456794B2 JPH0456794B2 JP60215183A JP21518385A JPH0456794B2 JP H0456794 B2 JPH0456794 B2 JP H0456794B2 JP 60215183 A JP60215183 A JP 60215183A JP 21518385 A JP21518385 A JP 21518385A JP H0456794 B2 JPH0456794 B2 JP H0456794B2
- Authority
- JP
- Japan
- Prior art keywords
- ceramic
- metal
- shaft
- molded body
- metal composite
- 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.)
- Expired - Lifetime
Links
- 239000000919 ceramic Substances 0.000 claims description 60
- 229910052751 metal Inorganic materials 0.000 claims description 53
- 239000002184 metal Substances 0.000 claims description 53
- 239000002905 metal composite material Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 229910001080 W alloy Inorganic materials 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 238000005304 joining Methods 0.000 description 14
- 238000012545 processing Methods 0.000 description 10
- 239000002131 composite material Substances 0.000 description 8
- 238000012805 post-processing Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000005219 brazing Methods 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910017709 Ni Co Inorganic materials 0.000 description 1
- 229910003267 Ni-Co Inorganic materials 0.000 description 1
- 229910003262 Ni‐Co Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- GEIAQOFPUVMAGM-UHFFFAOYSA-N ZrO Inorganic materials [Zr]=O GEIAQOFPUVMAGM-UHFFFAOYSA-N 0.000 description 1
- 239000011195 cermet Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、セラミツク軸と金属軸との接合構
造、特に、セラミツク部材と金属部材とを接合し
た複合体を機械加工した機械部品に関するもので
ある。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a joining structure between a ceramic shaft and a metal shaft, and in particular to a mechanical component machined from a composite body made by joining a ceramic member and a metal member. be.
近時セラミツクの目覚ましい発達に伴ないこれ
と金属とを接合させた成形体が生み出されている
が両者の接合技術そのものについてはかなりの研
究開発が進められ成果が得られているが、後加工
を伴なうような場合には、金属と接する側のエツ
ジ部分で後加工中又はその加工を終えて使用中に
セラミツクに欠けが生じ易く、又、隣接している
セラミツクと金属とを同一の砥石で加工する場
合、金属はロツクウエルＣ硬さ（HRC）45以下で
は金属のダレの発生が著るしく、これがためにセ
ラミツクの端部が押されてセラミツクにかけを発
生し易く、更に又、セラミツクと金属では同一砥
石で加工しようとする場合、その砥石の選定が難
しく又、砥石の寿命が短いなどの問題点があつ
た。
In recent years, with the remarkable development of ceramics, molded bodies have been produced by joining ceramics and metals.Although considerable research and development has been carried out and results have been obtained regarding the joining technology of the two, there is still a need for post-processing. In such cases, the ceramic is likely to chip at the edge part on the side that contacts the metal during post-processing or during use after finishing the process, and the adjacent ceramic and metal may be When processing metal with a Rockwell C hardness (H RC ) of 45 or less, sagging of the metal occurs significantly, and this tends to push the edges of the ceramic and cause cracking of the ceramic. When processing metals and metals using the same whetstone, it is difficult to select the right whetstone, and the life of the whetstone is short.
なお、セラミツク軸の面取り自体については、
特開昭60−82267号公報では金属軸との接合の場
合に、ろう付け部分にろう溜りを設けるためにセ
ラミツク軸の接合端を面取りしたり、セラミツク
軸を金属軸より小径にしておいて、金属軸とろう
付けして接合するために面とりすることが開示さ
れているが、主としてセラミツクの接合の際の応
力集中を緩和したり、セラミツク自体を単独で加
工中にチツピングを生ずるのを防止せんとするも
のであり、本発明とは目的及び構成を異にするも
のである。 Regarding the chamfering itself of the ceramic shaft,
In JP-A-60-82267, when joining a metal shaft, the joining end of the ceramic shaft is chamfered to provide a solder pool in the brazed part, or the diameter of the ceramic shaft is made smaller than that of the metal shaft. Chamfering is disclosed for brazing and joining with a metal shaft, but it is mainly used to alleviate stress concentration when joining ceramics, and to prevent chipping during processing of the ceramic itself. The purpose and structure of this invention are different from those of the present invention.
本発明は上記のような実情に鑑みて鋭意検討の
結果なされたもので、少なくもセラミツク成形体
側の金属成形体と隣合う縁部にあらかじめ面取り
加工してあるものを用いて複合体を構成している
ことを特徴とするものであり、金属側も面取り加
工してあれば一層好ましいものである。
The present invention was made as a result of intensive studies in view of the above-mentioned circumstances, and consists of constructing a composite body using at least a ceramic molded body whose edges adjacent to the metal molded body are chamfered in advance. It is more preferable if the metal side is also chamfered.
なお本発明に用いられるセラミツク材料は
SiC，Si3N4，Si3N4−Al2O3，Al2O3，ZrO2等各
種のセラミツク材料が適用され、更にはセラミツ
クと金属の混合体であるサーメツトその他の材料
が適用される。 The ceramic material used in the present invention is
Various ceramic materials such as SiC, Si 3 N 4 , Si 3 N 4 -Al 2 O 3 , Al 2 O 3 , and ZrO 2 are used, as well as cermet, which is a mixture of ceramic and metal, and other materials. Ru.
又、金属材料としてはAl，Mg，Fe，Cu等の
単体や各種合金等が適用される。 Further, as the metal material, single substances such as Al, Mg, Fe, Cu, etc. and various alloys are used.
ただセラミツクと金属とが複合（接合又は結
合）した場合、同一の加工面を有する複合体であ
ることが本発明の条件の一つである。 However, when ceramic and metal are composited (joined or bonded), one of the conditions of the present invention is that the composite has the same processed surface.
上記した本発明のような複合構造体を加工する
には、複合体の面加工に当つてその加工中は勿
論のこと、加工後もセラミツクにチツピングが発
生せずセラミツクローターと金属軸の接合体の
如き複雑な構造の複合体にあつても、例えば金属
スリーブがセラミツクローターに押圧を加えるよ
うな変形を生ぜずセラミツクローターにおけるチ
ツピングの発生を防止することができることが必
要である。そのためには、複合体の表面部分で、
少なくともセラミツクの面取りを行なつておくこ
とによりセラミツクと金属との間の距離が確保さ
れるので、セラミツクと金属とをそれぞれの最適
加工手段、例えばセラミツクをダイヤモンド砥石
により、研削加工し、金属をバイトにより旋盤加
工するか、又はGC砥石により研削加工する等の、
工具の干渉を避けて各々最適条件で加工すること
が可能となるので、砥石の寿命や加工時間を考え
ると加工製品の大幅なコストダウンも可能なもの
である。
In order to process the composite structure of the present invention as described above, it is necessary to form a joint between the ceramic rotor and the metal shaft without causing any chipping in the ceramic, not only during the processing but also after processing. Even in the case of a complex structure such as the above, it is necessary that the metal sleeve does not deform by applying pressure to the ceramic rotor, thereby preventing chipping in the ceramic rotor. For this purpose, at the surface part of the complex,
By chamfering the ceramic at least, the distance between the ceramic and the metal can be secured. Therefore, the ceramic and the metal can be processed using their respective optimal processing methods, such as grinding the ceramic with a diamond grindstone and grinding the metal with a cutting tool. such as lathe processing or grinding processing using a GC grindstone, etc.
Since it is possible to avoid tool interference and perform machining under optimal conditions, it is also possible to significantly reduce the cost of processed products when considering the life of the grindstone and machining time.
これらのことを図面を参照して詳しく説明する
と、
第１図、第２図は平面接合の例で、第１図は矩
形状のセラミツク成形体１と側面Ｌ字状の金属成
形体２とが複合されている。３はセラミツク成形
体１に設けた面取りである。Ｃは研削方向を示
す。 To explain these matters in detail with reference to the drawings, FIGS. 1 and 2 show examples of planar joining, and FIG. It is compounded. 3 is a chamfer provided on the ceramic molded body 1. C indicates the grinding direction.
面取り加工がないとＣ方向に加工する場合、セ
ラミツク成形体のエツジ部分に欠けが発生する
が、図１のように面取り加工３が施されていれ
ば、欠けが発生する恐れがない。図２の場合も同
様であり、面取り加工３が施されていることによ
りＣ方向の加工を行う場合に欠けが発生する恐れ
がない。 If the ceramic molded body is processed in the C direction without chamfering, chips will occur at the edges, but if chamfering 3 is applied as shown in FIG. 1, there is no risk of chipping. The same applies to the case of FIG. 2, and since the chamfering process 3 is performed, there is no fear of chipping occurring when machining in the C direction is performed.
次に、これらのことを考慮して複合体に機械加
工を施した本発明の実施例を図面に基づいて説明
する。
Next, an embodiment of the present invention in which a composite body is machined in consideration of these matters will be described based on the drawings.
第３図は、セラミツクローターに金属軸を接合
した複合体に機械加工を施した構造の断面図で、
セラミツクローター１１の軸状突出部１１ａのそ
ばのコーナーには面取り１３が施されたものを用
意しこれをFe−Ni−Coを主成分とする金属スリ
ーブ１４及びマルテンサイト系耐熱鋼SUH−616
（JIS）の軸１２を準備し、軸間にはNi板及びＷ
合金からなる緩衝層１５を介在させて加熱ろう付
け接合を行ない、これにオイルシールリング溝１
６の機械加工を施した接合構造のものはセラミツ
クローター１１と金属スリーブとの間に隙間１７
が残つているので、金属スリーブ１４が熱膨張し
てもセラミツクローターを押圧せずチツピングは
起らなかつた。 Figure 3 is a cross-sectional view of a structure in which a composite body consisting of a ceramic rotor and a metal shaft is machined.
A ceramic rotor 11 with a chamfer 13 on the corner near the shaft-like protrusion 11a is prepared, and this is attached to a metal sleeve 14 mainly composed of Fe-Ni-Co and martensitic heat-resistant steel SUH-616.
(JIS) shaft 12 is prepared, and there is a Ni plate and W
Heat brazing is performed with a buffer layer 15 made of an alloy interposed therebetween, and an oil seal ring groove 1 is formed in this.
The machined joint structure shown in item 6 has a gap 17 between the ceramic rotor 11 and the metal sleeve.
remains, so even if the metal sleeve 14 thermally expands, it does not press the ceramic rotor and no chipping occurs.
これに対し、第４図に示すようにセラミツクロ
ーターに面取り１３を施さないものを準備し、第
３図同様に金属軸と接合したものでは金属スリー
ブ１４にオイルシールリング溝１６の加工を行な
う際及び外周加工を行なう際に金属スリーブ１４
が矢印方向に逃げてセラミツクローター１１とく
つついてしまい、セラミツクローター１１のエツ
ジ部分にチツピングを生じた。なお第４図では第
３図と同一部分は同一符号を付し説明を省略して
あるので理解されたい。 On the other hand, as shown in FIG. 4, a ceramic rotor without chamfering 13 is prepared, and a rotor joined to a metal shaft as shown in FIG. and the metal sleeve 14 when processing the outer periphery.
escaped in the direction of the arrow and hit the ceramic rotor 11, causing chipping at the edge of the ceramic rotor 11. It should be understood that in FIG. 4, the same parts as in FIG. 3 are given the same reference numerals and explanations are omitted.
上記の発明に於いては、セラミツクローターと
金属軸との接合には緩衝金属層を介したものを採
用しているが、以下に示すようなセラミツク軸１
１ａ端を金属軸２２端に焼嵌め接合したものを採
用してもよい。第５図、第７図、第８図は、適例
を示しているのに対し、第６図は不適例を示した
ものである。 In the above invention, a buffer metal layer is used for joining the ceramic rotor and the metal shaft.
It is also possible to employ one in which the end 1a is shrink-fitted to the end of the metal shaft 22. 5, 7, and 8 show suitable examples, whereas FIG. 6 shows an unsuitable example.
なお図に於てセラミツク軸２１が金属軸２２に
点線で示すように嵌入されて焼嵌められており、
２３，２３′はそれぞれセラミツク軸２１及び金
属軸２２に付されている面取りを示す。 In the figure, the ceramic shaft 21 is inserted and shrink-fitted into the metal shaft 22 as shown by the dotted line.
Reference numerals 23 and 23' indicate chamfers applied to the ceramic shaft 21 and the metal shaft 22, respectively.
そして、第５図はセラミツク軸と金属軸とが同
径で、セラミツク軸にのみ面取りがある場合、第
７図はセラミツク軸と金属軸とが同径で、両者に
面取りがある場合、第８図はセラミツク軸の方が
金属軸より大きい径で、セラミツク軸にのみ面取
りがある場合をそれぞれ示しており、接合後の後
加工時又は加工後に於いてもセラミツク軸に欠け
を発生することはなかつたが、第６図ではセラミ
ツク軸、金属軸ともに同径で面取りせずに焼嵌め
られているので、接合後の後加工時又は加工後に
セラミツク軸に欠けを発生した。 Fig. 5 shows a case where the ceramic shaft and the metal shaft have the same diameter and only the ceramic shaft has a chamfer, and Fig. 7 shows a case where the ceramic shaft and the metal shaft have the same diameter and a chamfer on both. The diagrams show cases where the diameter of the ceramic shaft is larger than that of the metal shaft, and only the ceramic shaft has a chamfer, so that chips will not occur on the ceramic shaft even during post-processing after joining or after processing. However, in FIG. 6, both the ceramic shaft and the metal shaft have the same diameter and are shrink-fitted without chamfering, so that chips occurred in the ceramic shaft during or after post-processing after joining.
本発明によれば、セラミツク成形体と金属成形
体とからなる複合成形体に於て、少なくともあら
かじめ面取りしたセラミツク成形体を用いるだけ
で、極めて簡単にセラミツク−金属複合成形体を
製造することができ、かつ、このようにすること
によつて複合体の仕上げ加工時に研摩方向等の制
限を受けずに加工することができ、セラミツク端
部に欠けの発生がなくなり、又、複合体の面加工
に際してセラミツクと金属とを別の砥石等で研磨
加工することが可能となるので加工能率が向上
し、製品のコストダウンを期待することができ
る。
According to the present invention, a ceramic-metal composite molded body can be manufactured extremely easily by using at least a pre-chamfered ceramic molded body in a composite molded body consisting of a ceramic molded body and a metal molded body. And, by doing this, it is possible to finish the composite without restrictions on the polishing direction, etc., and there is no possibility of chipping at the edges of the ceramic. Since ceramic and metal can be polished using separate grindstones, processing efficiency is improved and product costs can be expected to be reduced.
また、セラミツクと金属との接合部に金属スリ
ーブが被嵌されているので、接合部分は補強され
た構造になつているので、強度も大きくなる。 Furthermore, since the metal sleeve is fitted over the joint between the ceramic and the metal, the joint has a reinforced structure, which increases its strength.
第１図、第２図は本発明の内、平面接合した場
合の斜視図、第３図は本発明の内、セラミツクロ
ーターと金属軸の接合構造を示す縦断面図、第４
図は比較例として面取りのないセラミツクロータ
ーと金属軸の接合構造を示す縦断面図、第５図、
第７図及び第８図はそれぞれ本発明によるセラミ
ツク軸と金属軸の焼嵌め接合に関する実施例の縦
断面図、第６図はセラミツク軸と金属軸の焼嵌め
接合に関する比較例の縦断面図である。
１……セラミツク、２……金属、１１……セラ
ミツクローター、１１ａ……軸状突出部、１２…
…金属軸、１３……面取り、１４……金属スリー
ブ、１５……緩衝層、１６……オイルシールリン
グ溝、１７……面取り隙間、２１……セラミツク
軸、２２……金属軸、２３，２３′……面取り。
Figures 1 and 2 are perspective views of the present invention when they are joined in plane, Figure 3 is a longitudinal sectional view showing the joint structure of the ceramic rotor and metal shaft of the present invention, and Figure 4
The figure is a vertical cross-sectional view showing a joint structure of a ceramic rotor without chamfering and a metal shaft as a comparative example, and Fig. 5.
7 and 8 are longitudinal cross-sectional views of an embodiment of the shrink-fit joining of a ceramic shaft and a metal shaft according to the present invention, respectively, and FIG. 6 is a longitudinal cross-sectional view of a comparative example of shrink-fit joining of a ceramic shaft and a metal shaft. be. DESCRIPTION OF SYMBOLS 1... Ceramic, 2... Metal, 11... Ceramic rotor, 11a... Axial protrusion, 12...
... Metal shaft, 13 ... Chamfer, 14 ... Metal sleeve, 15 ... Buffer layer, 16 ... Oil seal ring groove, 17 ... Chamfer gap, 21 ... Ceramic shaft, 22 ... Metal shaft, 23, 23 '……chamfer.
Claims (1)
の軸部を接合した外表面が同一の加工面を有する
セラミツク−金属複合体に於いて、該接合部には
金属スリーブが被嵌されると共に、該金属スリー
ブはその端面がセラミツク成形体の基端面に隣接
対向して設けられており、金属スリーブとセラミ
ツク成形体との対向面のうち少なくともセラミツ
ク成形体面の縁部には予じめ面取り加工が形成さ
れていることを特徴とするセラミツク−金属複合
体の構造。 ２ 接合部は緩衝層を介して接合されていること
を特徴とする特許請求の範囲第１項に記載したセ
ラミツク−金属複合体の構造。 ３ 接合部はNi板及びＷ合金から成る緩衝層を
介して接合されていることを特徴とする特許請求
の範囲第１項に記載したセラミツク−金属複合体
の構造。 ４ 金属スリーブの外周面にオイルシーリング溝
を形成したことを特徴とする特許請求の範囲第１
乃至３項に記載したセラミツク−金属複合体の構
造。[Scope of Claims] 1. In a ceramic-metal composite in which the axial portion of the metal molded body is joined to the axial protrusion of the ceramic molded body and the outer surface has the same machined surface, a metal sleeve is provided at the joint portion. is fitted, and the end surface of the metal sleeve is provided adjacent to and opposite to the proximal end surface of the ceramic molded body, and at least the edge of the surface of the ceramic molded body faces the metal sleeve and the ceramic molded body. is a structure of a ceramic-metal composite characterized by a chamfering process formed in advance. 2. The structure of the ceramic-metal composite according to claim 1, wherein the bonded portion is bonded via a buffer layer. 3. The structure of the ceramic-metal composite according to claim 1, wherein the joint portion is joined through a buffer layer made of a Ni plate and a W alloy. 4. Claim 1, characterized in that an oil sealing groove is formed on the outer peripheral surface of the metal sleeve.
Structure of the ceramic-metal composite described in items 3 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21518385A JPS6278168A (en) | 1985-09-30 | 1985-09-30 | Composite structure of ceramic to metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21518385A JPS6278168A (en) | 1985-09-30 | 1985-09-30 | Composite structure of ceramic to metal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6278168A JPS6278168A (en) | 1987-04-10 |
| JPH0456794B2 true JPH0456794B2 (en) | 1992-09-09 |
Family
ID=16668041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21518385A Granted JPS6278168A (en) | 1985-09-30 | 1985-09-30 | Composite structure of ceramic to metal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6278168A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59111984A (en) * | 1982-12-17 | 1984-06-28 | 日産自動車株式会社 | Ceramics-metal joint mechanism |
| JPS6082267A (en) * | 1983-10-06 | 1985-05-10 | Nissan Motor Co Ltd | Joint structure between ceramic shaft and metallic shaft |
-
1985
- 1985-09-30 JP JP21518385A patent/JPS6278168A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59111984A (en) * | 1982-12-17 | 1984-06-28 | 日産自動車株式会社 | Ceramics-metal joint mechanism |
| JPS6082267A (en) * | 1983-10-06 | 1985-05-10 | Nissan Motor Co Ltd | Joint structure between ceramic shaft and metallic shaft |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6278168A (en) | 1987-04-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6761122B2 (en) | Core drill bit and forming method | |
| US5183362A (en) | Cutting tool assembly | |
| GB2085769A (en) | High hardness cutting tool | |
| JPH0456794B2 (en) | ||
| JPS59175912A (en) | Carbide drill | |
| JP2586238Y2 (en) | Brazing cutting tool | |
| JP2593280B2 (en) | Ceramic press mold | |
| JP4399049B2 (en) | Diamond dresser and manufacturing method thereof | |
| JPH11320219A (en) | Hard sintered body throw-away chip and manufacture thereof | |
| JP2575561B2 (en) | Ceramic tools for burring | |
| JPH02256403A (en) | Tool for high hardness material machining | |
| JP2505803B2 (en) | End mill | |
| JP2877254B2 (en) | High hardness composite sintered body for tools | |
| JPS61136064A (en) | Coupling for ceramic with metal | |
| JPS6246489Y2 (en) | ||
| JPH06285620A (en) | Brazing joined body and its joining method | |
| JPH01188275A (en) | Grinding stone | |
| JPS6240722Y2 (en) | ||
| JPS6012642Y2 (en) | Cutting tools | |
| JPH0615434A (en) | Joining method for ceramics and metal | |
| JPH05192867A (en) | Vitrified bond super head abrasive grain grinding wheel | |
| JPS63206365A (en) | Joined body of ceramic and metal | |
| JPS61219534A (en) | Composite material of ceramic and metal | |
| JP2000052112A (en) | Hard sintered body throwaway tip | |
| JPS61206540A (en) | Joining type tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |