JPS5942124A - Manufacture of press bending die - Google Patents
Manufacture of press bending dieInfo
- Publication number
- JPS5942124A JPS5942124A JP57151116A JP15111682A JPS5942124A JP S5942124 A JPS5942124 A JP S5942124A JP 57151116 A JP57151116 A JP 57151116A JP 15111682 A JP15111682 A JP 15111682A JP S5942124 A JPS5942124 A JP S5942124A
- Authority
- JP
- Japan
- Prior art keywords
- punch
- die
- laser beam
- base body
- worked
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
- B21D5/0209—Tools therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/01—Selection of materials
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は、パンチおよびダイを備えたプレス曲げ型の製
造方法に係り、４′ｆに表面焼入れ後の研摩工程を削減
できるプレス曲げ型の製造方法に関するＯ
〔発明の技術的背景〕
一般にプレス曲げ型は、第１図に示すようにパンチｌ、
パンチホルダλ、シャンク３等を備え図示しない被加工
物を押圧するパンチ側と、ダイ≠。Detailed Description of the Invention [Technical Field of the Invention] The present invention relates to a method for manufacturing a press bending die equipped with a punch and a die, and the present invention relates to a method for manufacturing a press bending die that can reduce the polishing process after surface hardening in 4'f. O Regarding the Method [Technical Background of the Invention] Generally, a press bending die has a punch l, a punch l,
A punch side that includes a punch holder λ, a shank 3, etc. and presses a workpiece (not shown), and a die≠.
ダイホルダ！１位置決めプレート６等を備え前記被加工
物を受けるダイ側とから構成されており、前記パンチｌ
およびダイを長手方向の長さは、２０θ邸程度のものか
ら数ｍ程度のものまで各種製作されている。Die holder! 1 and a die side that is equipped with a positioning plate 6 etc. and receives the workpiece, and the punch l
The length of the die in the longitudinal direction varies from about 20θ to about several meters.
ところで従来この種のプレス曲げ型を製造する場合には
、炭素工具鋼（ＳＫ３）あるいは合金工具６Ｘ（ｓｘｐ
／／）等をその材料として用い、以下の方法により製作
されている。Conventionally, when manufacturing this type of press bending die, carbon tool steel (SK3) or alloy tool 6X (sxp
//) etc. as the material, and is manufactured by the following method.
すなわち、まず鍛造や圧延によシ作られた素材を焼入れ
、焼戻しして調質処理を施し、その後この素材をフライ
ス盤、研摩盤等を用い所要寸法近くに仕上げてバンチｌ
、ダイ≠を形成する。そしてその後、耐摩耗性を増大さ
せるためパンチｌ。That is, first, a material made by forging or rolling is quenched, tempered, and subjected to refining treatment, and then this material is finished to close to the required dimensions using a milling machine, polishing machine, etc., and then bunched.
, forming die≠. And then punch l to increase wear resistance.
ダイ弘の全表面に焼入れを行なう。この焼入れは。Harden the entire surface of Daihiro. This hardening.
大形の熱処理炉内へバンチ／、ダイ≠を挿入し、全体を
所豊の温度まで１例えば利料が合金工具鋼（ＳＫＴ）／
／）の場合には約１０００°Ｃ゛まで加熱することによ
り行なわれる。そして全体加熱後のバンチｌ、ダイ弘は
油槽に挿入され油冷される。Insert the bunch/die into a large heat treatment furnace and bring the whole thing to a temperature of 1.
/), it is carried out by heating to about 1000°C. After the entire heating, the bunch l and the die are inserted into an oil tank and cooled with oil.
従来は以上の方法によりプレス曲げ型を製造しているが
、この製造方法では、耐摩耗性を増大をせるための焼入
れ工程において、前述のようにパンチあるいはダイ全体
を高温加熱する方法を採っているため、エネルギ消費量
が多大と々シ経済的でない等の欠点がある。Conventionally, press bending dies have been manufactured by the method described above, but in this manufacturing method, the entire punch or die is heated at high temperature in the quenching process to increase wear resistance, as described above. Therefore, there are disadvantages such as a large amount of energy consumption and not very economical.
またパンチあるいはダイは、長手方向に細長い形状をし
ているため前記焼入れ工程での変形量が大きく、ために
所要の製品寸法を得るためには修正を必要とし工数が増
大して好ましくガい。オだ焼入れ加工後はパンチ、ダイ
の表面硬度が高いため、その修正は、研摩盤等による研
摩加工によるしか方法はないが、この研摩工程には多大
な時間を要する等の欠点がある。Furthermore, since the punch or die has an elongated shape in the longitudinal direction, the amount of deformation during the hardening process is large, and therefore correction is required to obtain the required product dimensions, which increases the number of man-hours, which is not desirable. Since the surface hardness of the punch and die is high after the hardening process, the only way to correct this is by polishing with a polishing machine, but this polishing process has drawbacks such as requiring a large amount of time.
本発明はかかる現況に鑑みなされたもので、焼入れ歪を
少なくして従来必須であった焼入れ後の研摩作業を削減
し、もって材料費、製作費および製作時間を大幅に低減
させることができるプレス曲げ型の製造方法を提供する
ことを目的とする。The present invention was developed in view of the current situation, and is a press that can reduce quenching distortion and eliminate the polishing work after quenching, which was previously essential, thereby significantly reducing material costs, manufacturing costs, and manufacturing time. The object of the present invention is to provide a method for manufacturing a bending die.
本発明は、従来の稚魚がパンチあるいはダイの全表面を
高温加熱して焼入れを行なっていたことに起因する点に
着目し、パンチあるいはダイの被加工物との当シ面に、
高エネルギ密度を有するビームを照射してＨＲＯ３！以
上の硬度の硬化部を形成するようにしたことを特徴とす
る。The present invention focuses on the fact that in the conventional frying process, the entire surface of the punch or die is hardened by heating to a high temperature.
HRO3 by irradiating a beam with high energy density! The present invention is characterized in that a hardened portion having a hardness higher than or equal to the above is formed.
以下本発明実施の一例を図面を参照して説明するＯ
周知のように高エネルギ密度を有するビーム、例えばレ
ーザ光は、エネルギ密度が極めて高く、瞬時加熱が可能
でかつその光束の直径を集光レンズ、凹面ミラーで自由
に調整することができる。An example of the implementation of the present invention will be described below with reference to the drawings.As is well known, a beam having a high energy density, such as a laser beam, has an extremely high energy density, can be instantaneously heated, and can be focused to a diameter of its beam. Can be adjusted freely using lenses and concave mirrors.
したがってこの照射による熱影響の硬化層は被加工材の
微小範囲にとどまり、それ以外の部分は冷却媒体の作用
をなすので、その照射部が他の手段、例えば油冷等を委
することなく硬化する。Therefore, the hardened layer affected by heat from this irradiation remains in a minute area of the workpiece, and the other parts act as a cooling medium, so the irradiated area can be hardened without relying on other means, such as oil cooling. do.
そこで本例では、笛２図に示すようにパンチｌの図示し
ない被加工物との当り面にレーザ発振器１０からのレー
ザ光ｌ／をミラーｔ２ｂよび集光レンズ１３を介して照
射し、第３図に符号ａ、ｂ、ｃで示す硬化部を形成する
ようにしている。Therefore, in this example, as shown in Fig. 2, the laser beam l/ from the laser oscillator 10 is irradiated onto the contact surface of the punch l with the workpiece (not shown) via the mirror t2b and the condensing lens 13, and the third Hardened portions indicated by symbols a, b, and c in the figure are formed.
前記パンチ／は、その構成材料として炭素工具鋼（ＳＫ
３）あるいは合金工具鋼（ｓＫＤ／／）が用いられ、鍛
造や圧延で作られた素材に焼入れ。The punch is made of carbon tool steel (SK) as its constituent material.
3) Alternatively, alloy tool steel (sKD//) is used and is hardened into a material made by forging or rolling.
焼戻しの調質処理を施した後、機械加工により所要寸法
に仕上げられるようになっている。そしてこのパンチｔ
のレーザ光／ｌの照射表面には、レーザ光／／の吸収を
よくするために全鉛系のレーザ光吸収剤（図示せず）が
均一に塗布場れるようになっている。After undergoing tempering treatment, it can be finished to the required dimensions by machining. And this punch t
On the surface irradiated with laser light/l, an all-lead laser light absorbent (not shown) is uniformly applied to improve absorption of the laser light/l.
また前記レーザ発振器１０は、数ＫＷの炭酸ガスレーザ
装置値で構成され、パンチｌの表面に表面硬化熱処理を
施すのに必要なエネルギを供給するようになっている。The laser oscillator 10 is configured with a carbon dioxide laser device with a power of several kilowatts, and is designed to supply the energy necessary to perform surface hardening heat treatment on the surface of the punch l.
そしてこのレーザ発振器１０から出力されたレーザ光／
／は、第一図に示すようにミラー／２によシ進行方向な
ほぼｑＯ度変えられ、さらに集光し／ズ／３によシ表面
硬化熱処理が可能なエネルギ密度まで県東された後パン
チｌに照射されるようになっている。The laser beam output from this laser oscillator 10/
As shown in Figure 1, / is changed by approximately qO degrees in the direction of travel by mirror /2, and is further focused, and after the energy density is increased to the extent that surface hardening heat treatment is possible by mirror /3. The punch l is irradiated with the light.
このパンチｌへのレーザ焼入れは、第２図に矢印Ａで示
す方向にミラー１２および集光レンズ１３を平行移動さ
せるか、あるいは逆にパンチｔを矢印Ａ方向に平行移動
させることによシなされるようになっている。また第３
図に示すようにパンチｌに形成でれる硬化部ａ ｒ ｂ
ｒ ｃは、レーザ光／／を分配することにより同時に
形成することもできるが１通常は硬化部ａ、硬化部す、
硬化部Ｃの順に照射形成されるようになっている。これ
ら各硬化部ａ、ｂ、ｃは１図示しない被加工物の硬さを
上まわる必要があシ、第≠図に硬化部ａ、 、 ｂ 、
ｃの焼入れ硬さの測定結果を示すように本例ではＨｌ
、０３５以上の硬度に設定されている、
次にパンチｌの製造方法について説明する。This laser hardening of the punch l is accomplished by moving the mirror 12 and the condenser lens 13 in parallel in the direction shown by arrow A in FIG. 2, or by moving the punch t in parallel in the direction of arrow A. It has become so. Also the third
As shown in the figure, the hardened part a r b formed on the punch l
rc can be formed simultaneously by distributing laser light //, but usually the cured part a, the cured part I,
The cured portion C is formed by irradiation in this order. It is necessary that each of these hardened parts a, b, and c exceeds the hardness of the workpiece (not shown).
In this example, Hl
, the hardness is set to 035 or higher. Next, a method for manufacturing the punch l will be described.
まず、鍛造や圧延で作られた炭素工具鋼（ｓｘ、ｙ）製
または合金工具鋼（ＳＫＤ／／）製の素材に焼入れ、焼
戻しの調質処理を施し、これを枦械加工によシ所要寸法
に仕上げてパンチ／とする。First, a material made of carbon tool steel (sx, y) or alloy tool steel (SKD//) made by forging or rolling is quenched and tempered, and then subjected to the required machining process. Finish to size and punch/.
次いで、このパンチｌのレーザ光／ｌの照射面にレーザ
光／ｌの吸収をよくするために全鉛系のレーザ光吸収剤
を均一に塗布する。Next, an all-lead based laser light absorbent is uniformly applied to the surface of the punch l irradiated with laser light/l in order to improve the absorption of the laser light/l.
次いでこの算゛布面にレーザ発振器１０からのレーザ光
／／を照射し、硬化部ａ、ｂ、ｃをＪｌ＠次形酸形成。Next, the surface of this canvas is irradiated with a laser beam // from a laser oscillator 10, and the hardened parts a, b, and c are formed with Jl@sub-form acid.
このようにしてレーザ焼入れを行なったパンチｌは焼入
れ歪か極めて少なく、従来方法において必須であった表
面焼入れ後の多大な時間を要する研摩工程を削減でき、
製作時間や製作費を大幅に削減できる。The punch l that has been laser hardened in this way has very little hardening distortion, and the time-consuming polishing process after surface hardening, which was essential in the conventional method, can be eliminated.
Production time and production costs can be significantly reduced.
なお前ｉ１テ実施例では、パンチｌの構成材料として炭
素工具鋼あるいは合金工具鋼を用いる場合について説明
したが、安価で入手し易い、例えばｓ ｓｏ ｃ等の機
械構造用炭素鋼を甲いても同枦の効果が借られる。また
パンチｌは図示するＶ曲げ型構造のものに限らず、異形
曲げ型構造のものでも同様の効果が得ちれる。In the above example, the case where carbon tool steel or alloy tool steel is used as the constituent material of the punch 1 has been explained. The same effect can be borrowed. Further, the punch l is not limited to the one with the V-bending structure shown in the drawings, but the same effect can be obtained by using one with an odd-shaped bending structure.
また前記実施例では、パンチｌを例に採って説明したが
、第１図に示すダイｔの場合にも同様の構成材料を用い
て同様の工程で加工することにより、同様の効果が得ら
れる。Further, in the above embodiment, explanation was given by taking the punch l as an example, but the same effects can be obtained by using the same constituent materials and processing in the same process in the case of the die t shown in Fig. 1. .
さらに、前記実施例では、焼入れの際にレーザ光／ｌを
用いる場合について説明したが、ＨＲ０３！；以上の硬
度の硬化部が形成されるならば、高エネルギ誓度乞有す
る他のビームでもよい。Furthermore, in the above embodiment, a case was explained in which laser light/l was used during hardening, but HR03! ; Other beams with high energy requirements may be used as long as a hardened portion with hardness above is formed.
以上説明したように本発明は、パンチおよびダイの被加
工物との尚）而に、高エネルギ密度を有するビームを照
射してＨＲＯ、？ｊ以上の硬度の硬化部を形成するよう
にしているので、焼入れに伴なう歪が少＆（、従来必須
であった焼入れ後の研摩作業を削減できる。そしてこれ
により、製作時間および製作費の大幅な低減が可能とな
る。またパンチおよびダイの構成材料として入手し易い
安価な材料を用いることができるので材料費を低減させ
ることができ、また局部的な加熱のみでイ１ψ化部が得
られるので省エネルギ効果も大である。As explained above, the present invention is capable of performing HRO, ? Since a hardened part with a hardness of J or higher is formed, there is less distortion due to hardening and the polishing work after hardening, which was previously required, can be reduced.This also reduces manufacturing time and manufacturing costs. It is also possible to reduce the material cost by using easily available and inexpensive materials for forming the punch and die. Therefore, the energy saving effect is also large.
＠／図は一般的なプレス曲げ型の構成を示す部分断面図
、第一図は本発明の実施例を示す説明図。
第３図は第一図の１−１１線拡大断ｍｊ図、印、≠図は
第３図のＴＶ−ＴＶ線にそって硬さを測定し、た結果を
示すグラフである。
ｌ・・・パンチ、≠・・・ダイ、／／・・レーザ光、／
３・・・集光レンズ、ａ、ｂ＋ｃ・・・硬化部。
出加「入代理人 猪 股 清１１
第１図＠/The figure is a partial sectional view showing the configuration of a general press bending die, and the first figure is an explanatory view showing an embodiment of the present invention. FIG. 3 is an enlarged sectional mj diagram along the line 1-11 in FIG. 1, and the mark ≠ is a graph showing the results of hardness measurements taken along the TV-TV line in FIG. l...Punch, ≠...Die, //...Laser light, /
3... Condensing lens, a, b+c... Cured part. Deka "Representative Kiyoshi Inomata 11 Figure 1
Claims (1)
ダイの基体を形成し、次いでこの基体の被加工物との当
夛面に、高エネルギ密度を有するビームを照射してＨＲ
ＯＪｊ以上の硬匿の硬化部を形成することを特徴とする
プレス曲げ型の製造方法。 λ、素材として機械構造用炭素鋼を用いることを特徴と
する特許請求の範凹第１項記載のプレス曲げ型の製造方
法。[Claims] The material after the tempering treatment is processed to a predetermined size to form the base of the punch and die, and then a beam with high energy density is applied to the surface of the base that is in contact with the workpiece. Irradiate and HR
A method for manufacturing a press bending die, characterized by forming a hardened part with a hardness of OJj or more. λ, a method for manufacturing a press bending mold according to claim 1, characterized in that carbon steel for mechanical structures is used as a material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57151116A JPS5942124A (en) | 1982-08-31 | 1982-08-31 | Manufacture of press bending die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57151116A JPS5942124A (en) | 1982-08-31 | 1982-08-31 | Manufacture of press bending die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5942124A true JPS5942124A (en) | 1984-03-08 |
Family
ID=15511705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57151116A Pending JPS5942124A (en) | 1982-08-31 | 1982-08-31 | Manufacture of press bending die |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5942124A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0682995A1 (en) * | 1994-05-17 | 1995-11-22 | Amada Metrecs Company, Limited | Upper tool and upper tool holder apparatus for press brake and method of holding the upper tool |
| JPH091243A (en) * | 1995-06-20 | 1997-01-07 | Amada Metrecs Co Ltd | Bending die, method for quenching its die and device therefor |
| US5642642A (en) * | 1994-05-06 | 1997-07-01 | Amada Metrecs Company, Limited | Upper tool and upper tool holding device for press brake |
| CN105945160A (en) * | 2016-05-25 | 2016-09-21 | 南京工业职业技术学院 | Round hole plunger chip processing technology |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5699028A (en) * | 1980-01-14 | 1981-08-10 | Toshiba Corp | Manufacture of die |
| JPS5763632A (en) * | 1980-10-03 | 1982-04-17 | Toshiba Corp | Production of die |
-
1982
- 1982-08-31 JP JP57151116A patent/JPS5942124A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5699028A (en) * | 1980-01-14 | 1981-08-10 | Toshiba Corp | Manufacture of die |
| JPS5763632A (en) * | 1980-10-03 | 1982-04-17 | Toshiba Corp | Production of die |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5642642A (en) * | 1994-05-06 | 1997-07-01 | Amada Metrecs Company, Limited | Upper tool and upper tool holding device for press brake |
| EP0682995A1 (en) * | 1994-05-17 | 1995-11-22 | Amada Metrecs Company, Limited | Upper tool and upper tool holder apparatus for press brake and method of holding the upper tool |
| EP1213062A2 (en) * | 1994-05-17 | 2002-06-12 | AMADA COMPANY, Ltd. | Upper tool and upper tool assembly comprising said upper tool for use with a press brake and method of clamping said upper tool |
| EP1213062A3 (en) * | 1994-05-17 | 2005-02-02 | AMADA COMPANY, Ltd. | Upper tool and upper tool assembly comprising said upper tool for use with a press brake and method of clamping said upper tool |
| JPH091243A (en) * | 1995-06-20 | 1997-01-07 | Amada Metrecs Co Ltd | Bending die, method for quenching its die and device therefor |
| CN105945160A (en) * | 2016-05-25 | 2016-09-21 | 南京工业职业技术学院 | Round hole plunger chip processing technology |
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