JP2004211162A - Method for producing die for press - Google Patents

Method for producing die for press Download PDF

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Publication number
JP2004211162A
JP2004211162A JP2002383657A JP2002383657A JP2004211162A JP 2004211162 A JP2004211162 A JP 2004211162A JP 2002383657 A JP2002383657 A JP 2002383657A JP 2002383657 A JP2002383657 A JP 2002383657A JP 2004211162 A JP2004211162 A JP 2004211162A
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JP
Japan
Prior art keywords
metal powder
press
manufacturing
sintering
press die
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
Application number
JP2002383657A
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Japanese (ja)
Inventor
Kazuo Hirai
和夫 平井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JKB KK
Original Assignee
JKB KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by JKB KK filed Critical JKB KK
Priority to JP2002383657A priority Critical patent/JP2004211162A/en
Publication of JP2004211162A publication Critical patent/JP2004211162A/en
Pending legal-status Critical Current

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  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Powder Metallurgy (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for producing a die for press with which the parts for three-dimensional die for press having high hardness, fine surface roughness after finish-working, precise dimension, conventionally needing the skillfulness, can be formed and worked at a time. <P>SOLUTION: This three-dimensional die 3 for press is formed and worked, by laminating a fixed amount of super hardened metallic powder 1 on a base board A, and melting and sintering the super hardened metallic powder laminated at the fixed amount, and further, laminating the metallic powder by the fixed amount on the melted and sintered metallic powder, and repeating the lamination of the metallic powder by the fixed amount, and the melting and the sintering of the powder in order. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明はプレス用の金型の製造方法に関するものであり、更に、詳細には、金属粉末を溶融、焼結させて製造するプレス用金型の製造方法に関するものである。
【0002】
【従来技術】
従来、金型の製造に当たっては硬質の金属材料を研削.切削.切断.放電加工等の手段(例えば、特許文献1参照)により複数のパーツに分けて製造して組み合わすことによって三次元の造形加工するか、単数のパーツにより一発で三次元の造形加工する方法や、金属材料、金属粉末、樹脂材料、樹脂粉末等を溶融させて一発で三次元の造形加工する方法(特許文献2参照)(特許文献3参照)等で製造されていた。
【0003】
【特許文献1】
特開昭60−102236号公報
【特許文献2】
特開昭60−159101号公報
【特許文献3】
特開平4−237527号公報
【0004】
【発明が解決しようとする課題】
然し乍ら、プレス用の金型においては、超硬材又は工具鋼等の金属材料を研削.切削.切断.放電加工等の手段により造形加工して製造しており、熟練された技術と手間暇がかかると共に、加工後に残る加工屑の処理の問題もあり、又、金属材料、金属粉末、樹脂材料、樹脂粉末等を溶融させて一発で三次元の造形加工する方法では、樹脂等のモールド用金型や試作品のように少数の製品をプレス成形するものにおいては使用が可能なものの、多量の製品のプレス成形をするプレス用金型においては硬度が不充分であったり、面粗度が粗いことや、寸法精度が悪いことから用いられていないのが実情である。
【0005】
【課題を解決するための手段】
本発明のプレス用金型の製造方法は、前述の課題を鑑みて、鋭意研鑚の結果、基板の上に超硬質の金属粉末を一定量積層させ、一定量積層させた超硬質の金属粉末を溶融焼結させ、溶融焼結させた金属粉末の上に更に金属粉末を一定量積層させて溶融焼結させ、金属粉末の一定量積層と溶融焼結とを順次繰り返すことにより三次元のプレス用金型を造形加工をするものである。
【0006】
【発明の作用】
本発明のプレス用金型の製造方法は、基板の上に超硬質の金属粉末を一定量積層させ、一定量積層させた超硬質の金属粉末を溶融焼結させ、更にその上に前記金属粉末を一定量積層させて溶融焼結させることを繰り返して、三次元のプレス用金型を造形加工するものであり、繰り返しの使用にも充分な硬度を得ることができ、仕上げ加工後の面粗度が細かく、更には、寸法精度を正確にとれるものである。
【0007】
従って、本発明のプレス用の金型の製造方法の目的は、超硬質の金属粉末を溶融、焼結させて積層することを繰り返して造形加工することによって、耐久性、及び、高精度の品質を有したプレス用金型の製造方法を提供するものである。
【0008】
【発明の実施の形態】
以下、本発明のプレス用金型の製造方法を実施の形態の図面によって具体的に説明する。
【0009】
図1は本発明のプレス用金型の製造方法の実施の形態の金属粉末の積層状態の説明図であり、図2は本発明のプレス用金型の製造方法の実施の形態の溶融焼結後の説明図であり、図3は本発明のプレス用金型の製造方法の実施の形態の次の金属粉末の積層状態の説明図であり、図4は本発明のプレス用金型の製造方法の実施の形態の次の溶融焼結後の説明図であり、図5は本発明のプレス用金型の製造方法の実施の形態の更に次の金属粉末の積層状態の説明図であり、図6は本発明のプレス用金型の製造方法の実施の形態の更に次の溶融焼結後の説明図であり、図7は本発明のプレス用金型の製造方法の実施の形態の完成時の説明図である。
【0010】
本発明はプレス用の金型の製造方法に関するものであり、更に、詳細には、金属粉末を溶融、焼結させて製造するプレス用金型の製造方法に関するものであり、基板の上に超硬質の金属粉末を一定量積層させ、該一定量積層させた超硬質の金属粉末を溶融焼結させ、前記溶融焼結させた金属粉末の上に更に金属粉末を一定量積層させて溶融焼結させ、金属粉末の一定量積層と溶融焼結とを順次繰り返すことにより三次元のプレス金型を造形加工するものである。
【0011】
即ち、本発明は図1に図示する如く、先ず、基板Aの上に超硬質の金属粉末1を一定量積層させるものであるが、一定量積層とは溶融が容易に行えるように薄く積層させるのもので、超硬質の金属粉末1とはクロム、ニッケル、鉄等、又は、クロム、ニッケル、鉄、モリブデン、バナジウム、タングステン等の少なくとも一つを含有する合金が好ましいものである。
【0012】
次いで、基板Aの上に一定量積層させた超硬質の金属粉末1を溶融焼結させるものであり、一定量積層させた超硬質の金属粉末1の表面からレーザー光線を照射する等の手段により加熱溶融し、その後冷却することにより、図2図示する如く、溶融焼結させた超硬質の金属層2を形成するものである。
【0013】
次に、図3に図示する如く、形成した超硬質の金属層2の上に更に超硬質の金属粉末1を一定量積層させるもので、更に一定量積層させた超硬質の金属粉末1を溶融焼結させて、図4に図示する如く、前記焼結させた超硬質の金属層2の上に更に溶融させた超硬質の金属層2を積層して焼結させるものである。
【0014】
更に、図5乃至図6に図示する如く、前記積層、溶融、焼結の工程を繰り返すものであり、そして、図7に図示する如く、厚みを必要とする部位には積層、溶融、焼結を繰り替えし行い所望の厚みを有する三次元のプレス用金型のパーツ3を造形加工するものである。
【0015】
【発明の効果】
本発明のプレス用金型の製造方法は、基板の上に超硬質の金属粉末を一定量積層させ、一定量積層させた超硬質の金属粉末を溶融焼結させ、更にその上に前記金属粉末を一定量積層させて溶融焼結させることを繰り返して、三次元のプレス用金型を造形加工をするものであり、繰り返しの使用にも充分な硬度を得ることができ、仕上げ加工後の面粗度が細かく、更には、寸法精度を正確にとれるものであり、熟練を要した三次元のプレス金型のパーツの製造を一度に造形加工できる画期的な発明である。
【図面の簡単な説明】
【図1】図1は本発明のプレス用金型の製造方法の実施の形態の金属粉末の積層状態の説明図である。
【図2】図2は本発明のプレス用金型の製造方法の実施の形態の溶融焼結後の説明図である。
【図3】図3は本発明のプレス用金型の製造方法の実施の形態の次の金属粉末の積層状態の説明図である。
【図4】図4は本発明のプレス用金型の製造方法の実施の形態の次の溶融焼結後の説明図である。
【図5】図5は本発明のプレス用金型の製造方法の実施の形態の更に次の金属粉末の積層状態の説明図である。
【図6】図6は本発明のプレス用金型の製造方法の実施の形態の更に次の溶融焼結後の説明図である。
【図7】図7は本発明のプレス用金型の製造方法の実施の形態の完成時の説明図である。
【符号の説明】
A 基板
1 金属粉末
2 金属層
3 プレス用金型のパーツ
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method for manufacturing a press die, and more particularly, to a method for manufacturing a press die for melting and sintering metal powder.
[0002]
[Prior art]
Conventionally, hard metal materials have been ground in the manufacture of dies. Cutting. Cutting. A method of performing three-dimensional modeling by dividing into a plurality of parts by means of electric discharge machining or the like (for example, see Patent Document 1) and combining them, or a method of performing three-dimensional modeling with a single part in one shot, It is manufactured by a method in which a metal material, a metal powder, a resin material, a resin powder, and the like are melted and three-dimensionally shaped by a single shot (see Patent Document 2) (see Patent Document 3).
[0003]
[Patent Document 1]
JP-A-60-102236 [Patent Document 2]
JP-A-60-159101 [Patent Document 3]
JP-A-4-237527
[Problems to be solved by the invention]
However, in press dies, metal materials such as cemented carbide or tool steel are ground. Cutting. Cutting. It is manufactured by molding processing by means of electric discharge machining, etc., and it requires skilled technology and time and labor, and there is also a problem of disposal of machining waste remaining after machining, metal materials, metal powder, resin material, resin In the method of three-dimensional modeling with one shot by melting powder, etc., a large number of products can be used in press molding a small number of products such as resin molds and prototypes. In fact, a press die for press molding is not used because of insufficient hardness, rough surface roughness, and poor dimensional accuracy.
[0005]
[Means for Solving the Problems]
In view of the above-mentioned problems, the method of manufacturing a press die according to the present invention is based on intensive studies. As a result, a predetermined amount of super-hard metal powder is laminated on a substrate, and a predetermined amount of super-hard metal powder is laminated. A three-dimensional press is performed by repeatedly sintering, melting and sintering a certain amount of metal powder on the melt-sintered metal powder, and repeating a certain amount of metal powder lamination and melt sintering sequentially. This is for forming the working mold.
[0006]
Effect of the Invention
The method for manufacturing a press die according to the present invention includes the steps of laminating a predetermined amount of super-hard metal powder on a substrate, melting and sintering the super-hard metal powder laminated by a predetermined amount, and further forming the metal powder thereon. This is a process of forming a three-dimensional press die by repeatedly laminating and melting and sintering a fixed amount of, and it is possible to obtain sufficient hardness for repeated use. The precision is small, and the dimensional accuracy can be accurately obtained.
[0007]
Therefore, the object of the method for manufacturing a press die of the present invention is to provide a mold having a durability and a high-precision quality by repeatedly forming, repeating, melting, sintering and laminating an ultra-hard metal powder. The present invention provides a method for manufacturing a press die having the following.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a method for manufacturing a press die of the present invention will be specifically described with reference to the drawings of the embodiments.
[0009]
FIG. 1 is an explanatory view of a state of lamination of metal powders according to an embodiment of the method for manufacturing a press die of the present invention, and FIG. 2 is a melt sintering embodiment of the method of manufacturing a press die of the present invention. FIG. 3 is an explanatory view illustrating a state of lamination of the next metal powder according to the embodiment of the method for manufacturing a press die of the present invention, and FIG. 4 is a view illustrating the manufacturing of the press die of the present invention. FIG. 5 is an explanatory view after the next melt sintering of the embodiment of the method, and FIG. 5 is an explanatory view of a further laminated state of the metal powder in the embodiment of the manufacturing method of the press die of the present invention; FIG. 6 is an explanatory view of the embodiment of the method for manufacturing a press die according to the present invention after the next melt sintering, and FIG. 7 is a diagram illustrating the completion of the embodiment of the method for manufacturing a press die according to the present invention. FIG.
[0010]
The present invention relates to a method for manufacturing a pressing die, and more particularly, to a method for manufacturing a pressing die for manufacturing by melting and sintering metal powder. A certain amount of hard metal powder is laminated, the super-hard metal powder laminated in a certain amount is melt-sintered, and a certain amount of metal powder is further laminated on the melt-sintered metal powder and melt-sintered. Then, a three-dimensional press die is formed by sequentially repeating a certain amount of lamination of the metal powder and melt sintering.
[0011]
That is, as shown in FIG. 1, the present invention firstly laminates a certain amount of the super-hard metal powder 1 on the substrate A. The ultra-hard metal powder 1 is preferably an alloy containing chromium, nickel, iron, or the like, or an alloy containing at least one of chromium, nickel, iron, molybdenum, vanadium, and tungsten.
[0012]
Then, the super-hard metal powder 1 laminated in a certain amount on the substrate A is melt-sintered, and heated by means such as irradiating a laser beam from the surface of the super-hard metal powder 1 in a certain amount. By melting and then cooling, as shown in FIG. 2, a super-hard metal layer 2 which is melt-sintered is formed.
[0013]
Next, as shown in FIG. 3, a certain amount of the super-hard metal powder 1 is further laminated on the formed super-hard metal layer 2, and the super-hard metal powder 1 further laminated in a certain amount is melted. After sintering, as shown in FIG. 4, a super-hard metal layer 2 further laminated on the sintered super-hard metal layer 2 is sintered.
[0014]
Further, as shown in FIGS. 5 and 6, the steps of laminating, melting and sintering are repeated, and as shown in FIG. Is repeated to form a three-dimensional press mold part 3 having a desired thickness.
[0015]
【The invention's effect】
The method for manufacturing a press die according to the present invention includes the steps of laminating a predetermined amount of super-hard metal powder on a substrate, melting and sintering the super-hard metal powder laminated by a predetermined amount, and further forming the metal powder thereon. Is a process of forming a three-dimensional press die by repeatedly laminating and melting and sintering a fixed amount of, and can obtain sufficient hardness for repeated use. This is an epoch-making invention that has a fine roughness and can accurately obtain dimensional accuracy, and can form and process parts of a three-dimensional press die requiring skill at a time.
[Brief description of the drawings]
FIG. 1 is an explanatory view of a state of lamination of metal powders in an embodiment of a method for manufacturing a press die according to the present invention.
FIG. 2 is an explanatory view after the melt sintering of the embodiment of the method for manufacturing a press die according to the present invention.
FIG. 3 is an explanatory diagram of a state of lamination of the next metal powder in the embodiment of the method for manufacturing a press die of the present invention.
FIG. 4 is an explanatory view after the next melt sintering of the embodiment of the method for manufacturing a press die according to the present invention.
FIG. 5 is an explanatory diagram of a state of lamination of metal powder according to the embodiment of the method for manufacturing a press die of the present invention.
FIG. 6 is an explanatory view after the further fusion sintering of the embodiment of the method for manufacturing a press die according to the present invention.
FIG. 7 is an explanatory view of the embodiment of the manufacturing method of the press die of the present invention at the time of completion.
[Explanation of symbols]
A Substrate 1 Metal powder 2 Metal layer 3 Press mold parts

Claims (1)

プレス用の金型の製造方法であって、基板の上に超硬質の金属粉末を一定量積層させ、該一定量積層させた超硬質の金属粉末を溶融焼結させ、前記溶融焼結させた金属粉末の上に更に金属粉末を一定量積層させて溶融焼結させ、金属粉末の一定量積層と溶融焼結とを順次繰り返すことにより三次元のプレス用金型を造形加工することを特徴とするプレス用金型の製造方法。A method for manufacturing a die for pressing, wherein a predetermined amount of super-hard metal powder is laminated on a substrate, and the super-hard metal powder laminated in a predetermined amount is melt-sintered, and the melt-sintering is performed. It is characterized in that a certain amount of metal powder is further laminated on the metal powder, melt-sintered, and a certain amount of metal powder is laminated and melt-sintered sequentially to form a three-dimensional press die. Manufacturing method of press die.
JP2002383657A 2002-12-27 2002-12-27 Method for producing die for press Pending JP2004211162A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016109111A1 (en) * 2014-12-30 2016-07-07 Smith International, Inc. Variable density, variable composition or complex geometry components for high pressure presses made by additive manufacturing methods
JP2016527386A (en) * 2013-05-03 2016-09-08 ユナイテッド テクノロジーズ コーポレイションUnited Technologies Corporation Method for removing subsurface pores
JP2016172904A (en) * 2015-03-17 2016-09-29 三菱日立ツール株式会社 Granule for lamination molding, and method for producing the same
WO2019069701A1 (en) * 2017-10-02 2019-04-11 日立金属株式会社 Cemented carbide composite material, method for producing same, and cemented carbide tool
JP2019136708A (en) * 2018-02-06 2019-08-22 株式会社Subaru Mold remodeling method
JP2021504144A (en) * 2017-11-27 2021-02-15 エス・エム・エス・グループ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング Roll stand
CN113199025A (en) * 2021-04-09 2021-08-03 南京市锅炉压力容器检验研究院 Powder feeding type laser additive manufacturing method for titanium steel composite plate with pure Cu as transition layer

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016527386A (en) * 2013-05-03 2016-09-08 ユナイテッド テクノロジーズ コーポレイションUnited Technologies Corporation Method for removing subsurface pores
WO2016109111A1 (en) * 2014-12-30 2016-07-07 Smith International, Inc. Variable density, variable composition or complex geometry components for high pressure presses made by additive manufacturing methods
US11020925B2 (en) 2014-12-30 2021-06-01 Schlumberger Technology Corporation Variable density, variable composition or complex geometry components for high pressure presses made by additive manufacturing methods
JP2016172904A (en) * 2015-03-17 2016-09-29 三菱日立ツール株式会社 Granule for lamination molding, and method for producing the same
WO2019069701A1 (en) * 2017-10-02 2019-04-11 日立金属株式会社 Cemented carbide composite material, method for producing same, and cemented carbide tool
CN111132782A (en) * 2017-10-02 2020-05-08 日立金属株式会社 Super-hard alloy composite material, method for producing same, and super-hard tool
JPWO2019069701A1 (en) * 2017-10-02 2020-11-19 日立金属株式会社 Cemented Carbide Composites and Their Manufacturing Methods and Cemented Carbide Tools
JP2021504144A (en) * 2017-11-27 2021-02-15 エス・エム・エス・グループ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング Roll stand
JP2019136708A (en) * 2018-02-06 2019-08-22 株式会社Subaru Mold remodeling method
JP7009247B2 (en) 2018-02-06 2022-01-25 株式会社Subaru Mold modification method
CN113199025A (en) * 2021-04-09 2021-08-03 南京市锅炉压力容器检验研究院 Powder feeding type laser additive manufacturing method for titanium steel composite plate with pure Cu as transition layer

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