JPH04111938A

JPH04111938A - Forging mold

Info

Publication number: JPH04111938A
Application number: JP23214190A
Authority: JP
Inventors: Masao Ozawa; 小沢　誠生
Original assignee: Daido Steel Co Ltd
Current assignee: Daido Steel Co Ltd
Priority date: 1990-08-31
Filing date: 1990-08-31
Publication date: 1992-04-13

Abstract

PURPOSE:To prevent peeling at the time of working of reinforced parts by providing groove parts having biting shapes at the peripheral edge parts at the front ends of a punch and/or die and providing the reinforced parts packed with a hardened reinforcing metal into the groove parts. CONSTITUTION:The reinforced parts 14, 15 provided in the peripheral edge parts at the front end of the punch 12 and die 13 of the forging die 11 are formed by packing the hardened reinforcing metal into the grooves 12A, 13A having the biting shape provided in the peripheral edge parts at the front ends of the punch 12 and the die 13. The reinforced parts 14, 15, therefore, have the biting parts 14A, 15A in the direction orthogonal with the peeling force of the punch actuation direction acted on the punch 12 and the die 13 at the time of working. Then, the reinforced parts 14, 15 are securely coupled to resist the peeling force by the anchor effect based on the bodies of the punches 12 and 13 and the biting parts 14A, 15A.

Description

【発明の詳細な説明】〔産業上の利用分野〕本発明は金属材の鍛造に用いられる金型に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a mold used for forging metal materials.

[Background of the invention]

従来、この種の鍛造用金型はパンチとダイとからなるが
、該金型のパンチやダイの先端周縁部の鍛造加工時にお
ける摩耗を防止するため、この部分に各種の硬質金属を
肉盛溶接して補強することが行なわれている。Conventionally, this type of forging mold consists of a punch and a die, but in order to prevent the peripheral edge of the tip of the punch or die from wear during forging, this part is overlaid with various hard metals. It is reinforced by welding.

[Conventional technology]

従来、第６図に示すように鍛造用金型（１）のパンチ（
２）やダイ（３）の先端周縁部に断面り形状の溝部（２
）Ａ　、　（３）Ａを設け、該溝部（２）Ａ、　（３）
Ａに硬質肉盛り溶接材をビーム照射して溶着させること
により補強部（４）、（５）を形成することが行なわれ
ていた（特開昭５７−５８９９０号）。Conventionally, as shown in Fig. 6, the punch (
2) and the periphery of the tip of the die (3) has a cross-sectional groove (2).
) A, (3) A are provided, and the groove portions (2) A, (3)
The reinforcement parts (4) and (5) were formed by beam-irradiating and welding a hard overlay welding material to A (Japanese Patent Laid-Open No. 57-58990).

[Problem to be solved by the invention]

しかしながら上記従来構成では、ダイ（３）内部に進入
したパンチ（２）を引抜く際に、上記ダイ（３）あるい
はパンチ（２）の先端周縁部に形成した補強部（４）　
、　（５）が剥離し易く、補修が必要となるので耐久性
が劣り実用的でなかった。However, in the above conventional configuration, when the punch (2) that has entered the inside of the die (3) is pulled out, the reinforcing portion (4) formed at the tip periphery of the die (3) or the punch (2) is removed.
, (5) easily peels off and requires repair, resulting in poor durability and impractical use.

[Means to solve the problem]

本発明は上記従来の課題を解決するための手段として、
パンチ（１２）とダイ（１３）とからなる鍛造用金型（
１１）であって、パンチ（１２）および／またはダィ（
１３）の先端周縁部に喰い込み形状の溝部（１２）Ａ。The present invention, as a means for solving the above-mentioned conventional problems,
A forging mold consisting of a punch (12) and a die (13) (
11), the punch (12) and/or the die (
13) has a groove portion (12) A that is cut into the peripheral edge of the tip.

（１３）Ａを設け、該溝部（１２）Ａ、　（１３）Ａ内
に硬化補強金属を充填した補強部（１４）　、　（１５
）を設けた鍛造用金型（１１）を提供するものである。(13)A is provided, and the grooves (12)A, (13)A are filled with hardened reinforcing metal (14), (15).
) A forging die (11) is provided.

[Effect]

本発明においては鍛造用金型（１１）のパンチ（１２）
とダイ（１３）の先端周縁部に設けた補強部（１４）　
、　（１５）は該パンチ（１２）とダイ（１３）の先端
周縁部に設けた喰い込み形状の溝部（１２）Ａ、　（１
３）Ａに硬化補強金属を充填することによって形成され
るので、該補強部（１４）、　（１５）は加工時にパン
チ（１２）およびダイ（１３）に及ぼされるパンチ作動
方向の剥離力と直交する方向に喰い込み部（１４）Ａ　
、　（１５）Ａを有する。したがって補強部（１４）　
、　（１５）はパンチ（１２）およびダイ（１３）の本
体と該喰い込み部（１４）Ａ　、　（１５）Ａにもとづ
くアンカー効果によって強固に結合し、該剥離力に抵抗
する。In the present invention, the punch (12) of the forging die (11)
and a reinforcing portion (14) provided at the peripheral edge of the tip of the die (13).
, (15) is a biting-shaped groove (12)A provided on the peripheral edge of the tip of the punch (12) and die (13), (1
3) Since it is formed by filling A with hardened reinforcing metal, the reinforcing parts (14) and (15) are perpendicular to the peeling force in the punch operating direction that is applied to the punch (12) and die (13) during processing. Biting part (14)A in the direction of
, (15) has A. Therefore, the reinforcement (14)
, (15) are firmly bonded to the bodies of the punch (12) and die (13) by the anchoring effect based on the biting portions (14)A, (15)A, and resist the peeling force.

〔Effect of the invention〕

したがって本発明ではパンチおよび／またはダイの先端
周縁部に設けられた補強部の加工時における剥離が確実
に防止される。そして該パンチやダイの先端周縁部や該
補強部により補強され、摩耗が防止されるので耐久性か
格段に向上する。Therefore, in the present invention, peeling of the reinforcing portion provided at the peripheral edge of the tip of the punch and/or die during processing is reliably prevented. Further, the punch and die are reinforced by the peripheral edge of the tip and the reinforcing portion, and wear is prevented, so durability is significantly improved.

〔Example〕

実施例１第１図〜第３図に本発明の第１実施例を示す。 Example 1 A first embodiment of the present invention is shown in FIGS. 1-3.

図において金型（１］）は構造用鋼５ＫＤ６１を材料と
するパンチ（１２）と５ＫＤ６２を材料とするダイ（１
３）とからなり、該パンチ（１２）は治具（１６）に取
付けられている。そして該パンチ（１２）とダイ（１３
）の先端周縁部には第２図に示すように喰い込み形状の
溝部（１２）Ａ、　（１，３）Ａが夫々設けられる。第
２図に示すように該パンチ（１２）の溝部（１２）Ａの
上側内壁部（１，２）Ｂはパンチ作動方向と直交する方
向に向って約３５°の傾斜で食い込み、下側内壁部（１
２）Ｃは約３０”の傾斜で食い込んで断面く形状になつ
いる。また該ダイ（１３）の溝部（１３）Ａの上側内壁
部（１，３）Ｂおよび下側内壁部（１３）Ｃは夫々約１
０°の傾斜で内側に食い込み、断面Ｃ形状になっている
。In the figure, the mold (1) is a punch (12) made of structural steel 5KD61 and a die (1) made of 5KD62.
3), and the punch (12) is attached to a jig (16). And the punch (12) and die (13)
As shown in FIG. 2, grooves (12)A and (1,3)A are provided in the peripheral edge of the distal end of the grooves (12)A and (1,3)A, respectively. As shown in FIG. 2, the upper inner wall portions (1, 2) B of the groove portion (12) A of the punch (12) bite into the groove at an angle of about 35° in the direction perpendicular to the punch operating direction, and the lower inner wall portion Part (1
2) C bites in at an inclination of about 30" and takes on a cross-sectional shape. Also, the upper inner wall (1, 3) B and the lower inner wall (13) C of the groove (13) A of the die (13) are about 1 each
It bites inward at a 0° inclination and has a C-shaped cross section.

ダイ（１３）の溝部（＋３）Ａはプラズマ粉末肉盛法の
作案件が容易であるように本実施例のように断面Ｃ形状
とすることが望ましい。上記形状のパンチ（］＋２およ
びダイ（１３）の溝部（１２）Ａ、　（］、＋３Ａには
第３図に示すように硬化補強金属を充填した補強部（１
４）　。It is desirable that the groove (+3) A of the die (13) has a C-shaped cross section as in this embodiment so that the plasma powder build-up method can be easily manufactured. The grooves (12)A, (), +3A of the punch (]+2 and die (13) having the above-mentioned shapes are filled with reinforcing portions (1) filled with hardened reinforcing metal, as shown in Fig. 3.
4).

（１５）が設けられ、該補強部（１４）、　（１５）は
該溝部（１２）Ａ、（１３）Ａの喰い込み形状に由来す
る喰い込み部（１４）Ａ、（１５）Ａを有する。該補強
部（１４）、（１，５）に用いられる硬化補強゛金属は
コバ用１−系ステライ１−であり、該硬化補強金属は粉
末としてプラズマ粉末肉盛法によって該溝部（１２）Ａ
、　（１３）Ａに夫々充填せられ、そしてパンチ（１２
）およびダイ（１３）の外周形状に沿うように切削仕上
加工が施される。該パンチ（１２）およびダイ（１３）
の先端周縁部は該補強部（１４）　、　（１５）によっ
てパンチ（１２）とダイ（１３）との加工時の擦過によ
る摩耗を防止され、そして補強部（１４）　、　（１５
）の喰い込み部（１４）Ａ　、　（１５）Ａのアンカー
効果により剥離力に抵抗する。(15) are provided, and the reinforcing portions (14) and (15) have bite portions (14)A and (15)A derived from the bite shapes of the groove portions (12)A and (13)A. . The hardened reinforcing metal used for the reinforcing parts (14) and (1, 5) is 1-series Stellai 1- for edges.
, (13) A are filled respectively, and a punch (12
) and the outer peripheral shape of the die (13). The punch (12) and die (13)
The reinforcing parts (14) and (15) prevent the peripheral edge of the tip from being worn out due to friction between the punch (12) and the die (13) during processing, and the reinforcing parts (14) and (15)
) resists peeling force due to the anchor effect of the biting parts (14)A and (15)A.

実施例２第４図には第２実施例が示される。本実施例では鍛造用
金型（２Ｉ）は実施例１と同様な材料からなるパンチ（
２２）、ダイ（２３）およびエジェクター（２６）とか
らなり、パンチ（２２）の先端周縁部に断面く形状の溝
部（２２）Ａが設けられ、該溝部（２２）Ａには実施例
１と同様にして喰い込み部（２４）Ａを有する補強部（
２４）が設けられている。Embodiment 2 A second embodiment is shown in FIG. In this example, the forging die (2I) is a punch (2I) made of the same material as in Example 1.
22), a die (23), and an ejector (26), and a groove (22)A having a rectangular cross section is provided at the peripheral edge of the tip of the punch (22), and the groove (22)A has the same shape as in Example 1. Similarly, the reinforcing portion (24) having a biting portion (24) A is
24) is provided.

該パンチ（２２）の先端周縁部は該補強部（２４）によ
ってワークＷとの加工時の擦過による摩耗を防止され、
そして該補強部（２４）は喰い込み部（２４）Ａのアン
カー効果により剥離力に抵抗する。The peripheral edge of the tip of the punch (22) is prevented from being worn due to friction during machining with the workpiece W by the reinforcing portion (24),
The reinforcing portion (24) resists peeling force due to the anchoring effect of the biting portion (24)A.

実施例３第５図には第３実施例が示される。本実施例では鍛造用
金型（３１）は実施例１と同様な材料からなる段付パン
チ（３２）、段付ダイ（３３）およびエジェクター（３
６）とからなり、パンチ（２２）の段部周縁および先端
周縁部には断面く形状の溝部（３２）Ａ、　（３２’　
）Ａが設けられ、ダイ（３３）の段部周縁には断面Ｃ形
状の溝部（３３）Ａが設けられ、該溝部（３２）Ａ、　
（３２’　）Ａ。Embodiment 3 A third embodiment is shown in FIG. In this example, the forging die (31) includes a stepped punch (32), a stepped die (33), and an ejector (3) made of the same material as in Example 1.
6), and grooves (32) A, (32'
)A is provided, and a groove (33)A having a C-shaped cross section is provided at the periphery of the stepped portion of the die (33), and the groove (32)A,
(32') A.

（３３）Ａには実施例１と同様にして喰い込み部（３４
）Ａ。(33) A has a biting part (34
)A.

（３４’　）Ａ　、　（３５）Ａを有する補強部（３４
）　、　（３４’　）、　（３５）が設けられている。(34') A, (35) Reinforcement part (34') having A
), (34'), and (35) are provided.

該パンチ（３２）の段部周縁および先端周縁部、該ダイ
（３３）の段部周縁は該補強部（３４）、　（３４’　
）　、　（３５）によってパンチ（３２）とダイ（３３
）とワークＷとの加工時の擦過による摩耗を防止され、
そして補強部（３４）、　（３４’　）、　（３５）は
喰い込み部（３４）Ａ、（３４’）Ａ、（３５）Ａのア
ンカー効果により剥離力に抵抗する。The periphery of the stepped portion and the periphery of the tip of the punch (32), and the periphery of the stepped portion of the die (33) are surrounded by the reinforcing portions (34), (34'
), (35) to punch (32) and die (33)
) and work W during machining is prevented,
The reinforcing portions (34), (34'), and (35) resist the peeling force due to the anchoring effect of the biting portions (34)A, (34')A, and (35)A.

[Brief explanation of the drawing]

第１図〜第３図は本発明の第１実施例を、示すものであ
り、第１−図は金型説明図、第２図は溝部分拡大説明図
、第３図は補強溝部分拡大説明図、第４図は第２実施例
の金型説明図、第５図は第３実施例の金型説明図、第６
図は従来例の金型説明図である。図中、（１１）　、　（２１）、　（３１）・・・・・
金型、（１２）　、　（２２）　、　（３２）・・・・
・パンチ、（１２）Ａ、（２２）Ａ、（３２）Ａ、（３
２’）Ａ・・・・・溝部、（１３）　、　（２３）　、
　（３３）・・・・・ダイ、ｏ４）、　（２４）、　（
３４）　、　（３４′）　、　（１５）　、　（３５）
・・・・補強部、（１４）Ａ　、　（２４）Ａ　、　（
３４）Ａ　、　（３４’　）Ａ　、　（１５）Ａ　、　
（３５）Ａ・・・・喰い込み部Figures 1 to 3 show the first embodiment of the present invention. Figures 1 to 3 are explanatory views of the mold, Figure 2 is an enlarged explanatory view of the groove, and Figure 3 is an enlarged view of the reinforcing groove. 4 is an explanatory diagram of the mold of the second embodiment. FIG. 5 is an explanatory diagram of the mold of the third embodiment.
The figure is an explanatory diagram of a conventional mold. In the figure, (11), (21), (31)...
Mold, (12), (22), (32)...
・Punch, (12) A, (22) A, (32) A, (3
2') A...Groove, (13), (23),
(33)...Die, o4), (24), (
34), (34'), (15), (35)
...Reinforcement part, (14)A, (24)A, (
34)A, (34')A, (15)A,
(35) A... Biting part

Claims

[Claims] 1. A forging mold consisting of a punch and a die, in which a groove in the shape of a bite is provided at the peripheral edge of the tip of the punch and/or the die, and the groove is filled with a hardened reinforcing metal. A forging die 2 characterized by being provided with a reinforcing part, a forging die 3 according to claim 1, wherein the groove having the biting part has a rectangular cross section, and a groove having the biting part. The forging die according to claim 1, which has a C-shaped cross section.