JPH01154831A - Composite die stock - Google Patents
Composite die stockInfo
- Publication number
- JPH01154831A JPH01154831A JP31249287A JP31249287A JPH01154831A JP H01154831 A JPH01154831 A JP H01154831A JP 31249287 A JP31249287 A JP 31249287A JP 31249287 A JP31249287 A JP 31249287A JP H01154831 A JPH01154831 A JP H01154831A
- Authority
- JP
- Japan
- Prior art keywords
- base part
- alloy coating
- joining
- alloy
- base
- 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
- 239000002131 composite material Substances 0.000 title claims description 9
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 23
- 239000000956 alloy Substances 0.000 claims abstract description 23
- 239000011247 coating layer Substances 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims description 25
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 2
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 abstract description 6
- 238000005304 joining Methods 0.000 abstract description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 abstract description 3
- 238000004544 sputter deposition Methods 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 abstract 1
- 238000005238 degreasing Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 14
- 239000010410 layer Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910052759 nickel Inorganic materials 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 4
- 230000035882 stress Effects 0.000 description 4
- 229910001315 Tool steel Inorganic materials 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 229910000640 Fe alloy Inorganic materials 0.000 description 2
- 229910000997 High-speed steel Inorganic materials 0.000 description 2
- 229910000990 Ni alloy Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 238000005219 brazing Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Landscapes
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
- Physical Vapour Deposition (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
この発明は、主にパンチ、ダイスなど機械加工を行なう
ために用いられる金型の素材に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] This invention relates primarily to materials for molds used for machining, such as punches and dies.
［従来の技術とその問題点コ
上記のような金型の素材には、強度、耐摩耗性、靭性な
どが要求される。例えばＪ第４図に示すブレス型用丸パ
ンチについては、切れ刃部１１においては素材に直接当
接して素材を加工する部分であるから、硬度が大きく耐
摩耗性の高いことが望まれ、また植込み部１２において
は、駆動力を切れ刃部１１に伝える部分であり、曲げや
圧縮の応力が負荷されるので、強度や靭性の高いことが
望まれる。このような金型の素材は、通常、合金工具鋼
や高速度鋼が用いられ、必要な靭性や硬度などの特性を
得るために、種々の熱処理を行い、さらに−層の耐摩耗
性を得る目的で、表面処理を行って表面硬化層を形成す
るなどして製造している。[Prior art and its problems] Materials for molds such as those mentioned above are required to have strength, wear resistance, toughness, etc. For example, in the case of a round punch for a press type shown in Fig. J4, since the cutting edge 11 is the part that directly contacts the material and processes the material, it is desirable that it has high hardness and high wear resistance. The implanted portion 12 is a portion that transmits driving force to the cutting edge portion 11, and is subjected to bending and compressive stress, so it is desired to have high strength and toughness. The material for such molds is usually alloy tool steel or high-speed steel, which is subjected to various heat treatments to obtain the necessary properties such as toughness and hardness, and also to obtain the wear resistance of the layer. For this purpose, it is manufactured by performing surface treatment to form a surface hardening layer.
しかしながら、上記のような工具鋼や高速度鋼を用いた
ものにおいては、いずれも、強度、靭性に比較して、切
れ刃部１１における耐摩耗性が低く、特に加工対象の硬
度が高い場合などに寿命が短いという不具合があった。However, in those using tool steel and high-speed steel as described above, the wear resistance of the cutting edge 11 is low compared to the strength and toughness, especially when the hardness of the workpiece is high. The problem was that it had a short lifespan.
また、表面硬化層を形成した場合には、これが母材の表
層のみに形成されているために、母材の弾性変形あるい
は塑性変形に伴って剥離しやすく、期待する寿命を得る
ことが難しかった。In addition, when a hardened surface layer is formed, since it is formed only on the surface layer of the base material, it is likely to peel off due to elastic or plastic deformation of the base material, making it difficult to obtain the expected lifespan. .
そこで、これらの素材からなる金型（基部）の先端に、
超硬合金やセラミックス等の超硬素材（加工部）を接合
して複合金型を形成することが考えられる。このような
複合金型材は、それぞれの素材の特性を生かして金型の
機能を高めることができるという利点を備えているが、
基部と加工部の接合が難しいという難点がある。すなわ
ち、この部分には、基部と同様の曲げや圧縮の応力がか
かるために基部世材と同様の強度靭性を有していなくて
はならないからである。Therefore, at the tip of the mold (base) made of these materials,
It is conceivable to form a composite mold by joining cemented carbide materials (processed parts) such as cemented carbide and ceramics. Such composite mold materials have the advantage of being able to enhance the functionality of the mold by taking advantage of the characteristics of each material.
The problem is that it is difficult to join the base and the processed part. That is, this part is subject to the same bending and compressive stresses as the base, and therefore must have the same strength and toughness as the base material.
このような接合を行う方法として、接合部の間にニッケ
ルなどのインサートメタルを適宜の方法で介在させて拡
散接合を行う方法が提案されている（特開昭６１−１１
７００３号公報）。しかしながら、この場合には、通常
、超硬素材からなる加工部の熱膨張率は小さく、金属か
らなる基部との熱膨張率が大きく異なるので、接合層間
の熱膨張率も差ができる。従って、熱歪みによる残留応
力、加工による摩擦熱などによる温度変化に起因する熱
応力に、加工に伴う繰り返しの応力が加わって接合部ま
たはその近傍に亀裂ができ、加工部が剥離するなどの問
題点が予想される。As a method for performing such bonding, a method has been proposed in which an insert metal such as nickel is interposed between the bonded portions by an appropriate method to perform diffusion bonding (Japanese Patent Application Laid-Open No. 1986-11).
Publication No. 7003). However, in this case, the coefficient of thermal expansion of the processed part made of a superhard material is usually small, and the coefficient of thermal expansion differs greatly from that of the base part made of metal, so there is also a difference in the coefficient of thermal expansion between the bonding layers. Therefore, there are problems such as residual stress due to thermal distortion, thermal stress caused by temperature changes due to frictional heat due to machining, and repeated stress due to machining, resulting in cracks forming at or near the joint, and peeling of the machined part. points are expected.
［問題点を解決するための手段］
上記のような問題点を解決するために、この発明は、加
工部及び基部の互いの接合面に、同じ金属成分を異なる
配合比で含む合金被膜層をそれぞれ形成し、これらの合
金被膜層を接合することにより、接合部の熱膨張率を順
次変化させるように構成したものである。合金層として
は、鉄とニッケルの合金が、強度や靭性を考慮すると好
適である。これは、鉄とニッケルの合金はその組成によ
り熱膨張率が変化することが知られており、例えばニッ
ケルや鉄の単体の熱膨張率は１３．０前後であるのに対
して、ニッケル含有量が３６ｗｔ％ぐらいになると８．
０前後になるので、熱膨張率を順次変化させるのに適し
た材料であるといえるからである。その形成方法は、ス
パッタリング、蒸着などにより薄膜を形成する方法、ま
たは、鑞付による方法、合金箔を間に挟む方法などが採
用される。[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides an alloy coating layer containing the same metal components in different blending ratios on the joint surfaces of the processed part and the base part. By forming these alloy coating layers and bonding these alloy coating layers, the thermal expansion coefficient of the bonded portion is sequentially changed. As the alloy layer, an alloy of iron and nickel is suitable in consideration of strength and toughness. It is known that the coefficient of thermal expansion of alloys of iron and nickel changes depending on their composition. For example, the coefficient of thermal expansion of nickel and iron alone is around 13.0, but the nickel content When it becomes about 36wt%, 8.
This is because the coefficient of thermal expansion is around 0, so it can be said that it is a material suitable for sequentially changing the coefficient of thermal expansion. As a method for forming it, a method of forming a thin film by sputtering, vapor deposition, etc., a method of brazing, a method of sandwiching an alloy foil, etc. are adopted.
［作用コ
このように構成された複合金型材においては、加工部と
基部の間に熱膨張率の異なる層を順次形成しているので
、金型が昇温したときに各眉間の膨張量が順次少しづつ
異なるように設定されており、接合部で発生する熱歪み
が緩和されるとともに、熱応力が小さいのでクラックな
どの発生が少ない。[Function] In the composite mold material constructed in this way, layers with different coefficients of thermal expansion are sequentially formed between the processed part and the base, so when the temperature of the mold rises, the amount of expansion between each glabella increases. They are set to be slightly different one after another, which alleviates the thermal strain that occurs at the joint, and because the thermal stress is small, cracks are less likely to occur.
［実施例コ 以下、図面を参照してこの発明の詳細な説明する。[Example code] Hereinafter, the present invention will be described in detail with reference to the drawings.
第１図は、この発明をパンチに応用した例を示すもので
、基部ｌは合金鋼５ＫＤＩＩＣ熱膨張率＝ １３．ＯＸ
ｔｏ−’）から構成され、また、加工部２は超硬金型
材であるＧ５（熱膨張率＝ ６．ＯＸ １０−”）が使
用されている。これらの加工部と基部の互いの接合面に
は、それぞれ厚さ２５μｍの２層の合金層３．４が形成
されている。これらの合金層は鉄−ニッケル合金からな
っており、加工部２側の合金Ｂ３は鉄富化合金層（Ｆ
ｅ５５ｗｔ％−Ｎｉ４５ｗｔ％、熱膨張率＝ ７．９Ｘ
１０−”）であり、基部ｌ側の合金層４はニッケル富
化合金層（Ｆ ｅ２２ｗｔ％−Ｎ １７８ｖｔ％、熱膨
張率＝ １３．６Ｘ １０−＠）である。Fig. 1 shows an example in which the present invention is applied to a punch, where the base l is made of alloy steel 5KDIIC thermal expansion coefficient = 13. OX
In addition, the processed part 2 is made of cemented carbide mold material G5 (coefficient of thermal expansion = 6.OX 10-'').The joint surfaces of these processed parts and the base are formed with two alloy layers 3.4 each having a thickness of 25 μm.These alloy layers are made of an iron-nickel alloy, and the alloy B3 on the processing section 2 side is an iron-enriched alloy layer ( F
e55wt%-Ni45wt%, coefficient of thermal expansion = 7.9X
10-''), and the alloy layer 4 on the base l side is a nickel-enriched alloy layer (Fe22wt%-N 178vt%, thermal expansion coefficient = 13.6X 10-@).
（製造方法） 以下、このパンチの製造法について述べる。(Production method) The method for manufacturing this punch will be described below.
予め所定の形状に加工した加工部２及び基部１の接合面
２ ａ、 １ ａを滑らかに仕上げ、アセトンにて脱脂
洗浄した後、上記とほぼ同じ組成を持つターゲットを用
いて、Ａｒガス雰囲気中でスパッタリングを行ない、そ
れぞれ合金被膜層（膜厚−２５μｍ）を形成した。The joint surfaces 2a, 1a of the processed part 2 and the base part 1, which have been previously processed into a predetermined shape, are finished smooth, degreased and cleaned with acetone, and then heated in an Ar gas atmosphere using a target having almost the same composition as above. Sputtering was performed to form an alloy coating layer (thickness -25 μm) on each of the substrates.
次に、これらを、第３図に示すようにホットプレス法に
より接合した。すなわち、加工部２と基部ｌの合金被膜
層３．４どうしを突き合わせて、１０００℃、ｌ Ｘ
１０ ”’Ｔｏｒｒの真空炉中において、接合面１ａ、
２ａに面圧２ Ｋ ｇｆ／ｍｍ’をかけた状態で６０ｍ
１ｎ保持した。Next, these were joined by hot pressing as shown in FIG. That is, the alloy coating layers 3.4 of the processed part 2 and the base l are butted together and heated at 1000°C, l
In a vacuum furnace at 10'' Torr, the bonding surface 1a,
60m with surface pressure 2 K gf/mm' applied to 2a
1n was maintained.
なお、比較材として、加工部に上記と同様の方法で鉄富
化合金層を形成した後に圧着させたしの（比較例１）、
ニッケル富化合金層を形成し１こ後に圧着させたもの（
比較例２）を製造し、また、全体を工具ｊ１１ｉ（ＳＫ
ＤＩＩ）で一体に製造したものを従来例とした。In addition, as a comparison material, an iron-enriched alloy layer was formed on the processed part by the same method as above and then crimped (Comparative Example 1),
A nickel-enriched alloy layer is formed and then crimped (
Comparative Example 2) was manufactured, and the whole was manufactured using tool j11i (SK
A conventional example was one manufactured in one piece using DII).
（試験方法）
実施例と従来例のパンチにより、それぞれ同じ材料の鍛
造加工を行った結果、パンチが寿命に至るまでに加工処
理した数を表に示す。それぞれパンチのサンプル数は５
０である。(Test Method) As a result of forging the same material using the punches of the example and the conventional example, the table shows the number of times the punches were processed until the end of their lifespan. The number of samples for each punch is 5.
It is 0.
なお、これらの寿命は、従来例においては、切り刃ＩＩ
の先端が摩耗したことによるもの、比較例においては、
接合部からの破断によるもの、実施例においては、加工
部２の摩耗及び接合部の破断の双方によるものであった
。In addition, these lifespans are based on cutting blade II in the conventional example.
In the comparative example, this is due to the tip of the
This was due to breakage at the joint, and in the example, it was due to both wear of the processed portion 2 and breakage of the joint.
このように、本発明の複合金型材を使用したパンチによ
れば、従来例のパンチの３０倍の寿命を得ることができ
、また、同じ複合金型材である比較例１，２に対しても
ほぼ２倍程度の寿命を得ることができた。In this way, the punch using the composite mold material of the present invention can have a lifespan 30 times longer than that of the conventional punch, and also has a lifespan that is 30 times longer than that of the conventional punch, and also compared to Comparative Examples 1 and 2, which are made of the same composite mold material. We were able to obtain approximately twice the lifespan.
［発明の効果コ
以上詳述したように、この発明は、加工部と基部の接合
面の間に、同一の成分系で組成の異なる合金被膜層を接
合面における熱膨張率が順次変化するように形成したも
のであり、熱変化が負荷された場合における熱歪みの発
生を防止し、加工部と基部の接合部の寿命を長期化し、
金型の耐用期間を大幅に延長することができる。従って
、この複合金型材を用いれば、超硬素材と工具鋼などの
それぞれの特性を生かして、加工能率が良く寿命の長い
金型を製造することができ、金型の交換にかかる時間と
手間を省き、操業効率を向上するという優れた効果を奏
するものである。[Effects of the Invention] As detailed above, the present invention provides an alloy coating layer having the same composition but different compositions between the joint surfaces of the processed part and the base so that the coefficient of thermal expansion at the joint surface changes sequentially. This prevents the occurrence of thermal distortion when subjected to thermal changes, prolongs the life of the joint between the processed part and the base,
The service life of the mold can be significantly extended. Therefore, by using this composite mold material, it is possible to manufacture molds with good machining efficiency and long life by taking advantage of the respective characteristics of carbide material and tool steel, and the time and effort required to replace molds. This has the excellent effect of improving operational efficiency.
第１図はこの発明の一実施例を示す側面図、第２図はそ
の製法を示す部分拡大図、第３図は同じく製法を示す図
、第４図は従来例を示す図である。
１・・・・・・基部、２・・・・・・加工部、Ｉａ、２
ａ・・・・・・接合面、３．４・・・・・・合金被膜層
。FIG. 1 is a side view showing an embodiment of the present invention, FIG. 2 is a partially enlarged view showing its manufacturing method, FIG. 3 is a view also showing the manufacturing method, and FIG. 4 is a diagram showing a conventional example. 1...Base, 2...Processed part, Ia, 2
a... Bonding surface, 3.4... Alloy coating layer.
Claims (2)
の互いの接合面に、同じ金属成分を異なる配合比で含む
合金被膜層が、加工部から基部に熱膨張率が順次変化す
るようにそれぞれ形成されていることを特徴とする複合
金型材。(1) An alloy coating layer containing the same metal components in different mixing ratios is formed on the joint surface of the processed part made of carbide material and the base part made of alloy steel, and the coefficient of thermal expansion changes sequentially from the processed part to the base part. A composite mold material characterized by being formed as follows.
を特徴とする特許請求の範囲第１項記載の複合金型材。(2) The composite mold material according to claim 1, wherein the alloy coating layer is made of an iron-nickel alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31249287A JPH01154831A (en) | 1987-12-10 | 1987-12-10 | Composite die stock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31249287A JPH01154831A (en) | 1987-12-10 | 1987-12-10 | Composite die stock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01154831A true JPH01154831A (en) | 1989-06-16 |
Family
ID=18029867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31249287A Pending JPH01154831A (en) | 1987-12-10 | 1987-12-10 | Composite die stock |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01154831A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111644512A (en) * | 2020-06-08 | 2020-09-11 | 江苏博联硕焊接技术有限公司 | Composite punch and preparation method thereof |
-
1987
- 1987-12-10 JP JP31249287A patent/JPH01154831A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111644512A (en) * | 2020-06-08 | 2020-09-11 | 江苏博联硕焊接技术有限公司 | Composite punch and preparation method thereof |
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