JPH0422650B2 - - Google Patents
Info
- Publication number
- JPH0422650B2 JPH0422650B2 JP58240219A JP24021983A JPH0422650B2 JP H0422650 B2 JPH0422650 B2 JP H0422650B2 JP 58240219 A JP58240219 A JP 58240219A JP 24021983 A JP24021983 A JP 24021983A JP H0422650 B2 JPH0422650 B2 JP H0422650B2
- Authority
- JP
- Japan
- Prior art keywords
- superplastic
- layers
- manufacturing
- molding
- male
- 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
Links
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 6
- 238000000465 moulding Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000000227 grinding Methods 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 230000002706 hydrostatic effect Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000006757 chemical reactions by type Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009760 electrical discharge machining Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/20—Making tools by operations not covered by a single other subclass
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、２液反応型等のプラスチツク成形金
型の製造方法に関するものである。従来例の構成
とその問題点
従来のプラスチツク成形金型の製造方法は、主
に研削、放電加工、あるいは、雄型、および雌型
のマスター型を用いて超塑性金属材料を成形する
方法が用いられている。研削は、凹曲面の成形が
困難であり、放電加工は、電極の消耗が寸法精度
に影響し、また両者とも加工速度が遅いという欠
点がある。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for manufacturing a two-component reaction type plastic mold. Structure of conventional examples and their problems Conventional methods of manufacturing plastic molding molds mainly involve grinding, electrical discharge machining, or molding of superplastic metal materials using male and female master dies. It is being Grinding has the disadvantage that it is difficult to form a concave curved surface, electric discharge machining has the disadvantage that electrode wear affects dimensional accuracy, and both have slow processing speeds.
超塑性金属材料を用いる方法は、ポンチまたは
ダイスに、石膏型等を用いて成形できるので、研
削放電加工の上記欠点を解消するものであるが、
ポンチおよびダイスの２つのマスター型を製作す
る必要がある。 The method using a superplastic metal material eliminates the above-mentioned drawbacks of grinding electric discharge machining because it can be formed using a punch or die, a plaster mold, etc.
It is necessary to make two master molds: a punch and a die.
発明の目的
本発明は、上記従来の加工方の欠点を解消し、
ポンチあるいはダイスのみを用いて、金型の雄型
および雌型を同時に、静水圧加工により成形する
ことを可能とするものである。Purpose of the Invention The present invention solves the drawbacks of the conventional processing methods mentioned above,
It is possible to simultaneously mold the male and female molds by hydrostatic processing using only punches or dies.
発明の構成
本発明のプラスチツク成形用金型の製造方法は
超塑性金属材料の板材を３層に重ね合せ、超塑性
現象の発現温度にて、ポンチあるいは、ダイスの
みからなる静水圧絞り成形を行ない、第１層と第
３層を金型の雄型と雌型とする金型製造方であ
り、雄型と雌型を同時に成形加工でき、また、超
塑性現象に利用することにより、加工精度の点で
非常に有効である。Structure of the Invention The method for manufacturing a plastic mold of the present invention involves stacking three layers of plates made of superplastic metal material, and performing isostatic drawing using only punches or dies at a temperature at which the superplastic phenomenon occurs. , is a mold manufacturing method in which the first and third layers are the male and female molds, and the male and female molds can be molded at the same time, and by utilizing the superplastic phenomenon, processing accuracy can be improved. It is very effective in this respect.
実施例の説明
以下本発明の一実施例について、図面を参照し
ながら説明する。DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.
第１図は、本発明の第１の実施例におけるプラ
スチツク成形金型の製造法の成形装置の断面図
で、ａが加工前、ｂが加工後である。図におい
て、１はポンチ、２は３層に重ねた超塑性金属の
板材である。 FIG. 1 is a cross-sectional view of a molding apparatus in a method of manufacturing a plastic mold according to a first embodiment of the present invention, in which a is a view before processing and b is a view after processing. In the figure, 1 is a punch and 2 is a superplastic metal plate made of three layers.
以上のように構成されたプラスチツク成形金型
の製造法について、以下にその動作を説明する。
まず、第１図ａに示しているように、板材２を液
圧またはガス圧により、ポンチ１へ静水圧成形す
る。超塑性材料は、変形抵抗が小さく、型なじみ
性が良い。超塑性材料として、たとえばZn−
22Al合金を用いた場合、250℃で成形することが
できる。このとき、サイクルタイムは形状にもよ
るが30秒〜３分くらいで成形できる。したがつ
て、成形装置全体を加熱し、たとえば、シリコン
オイルあるいはArガス等により、圧力をかける
ことにより、静水圧成形することができる。ま
た、超塑性材料の均肉化は、一般にひずみ速度分
布、温度分布、摩擦力のコントロールにより行わ
れ、たとえば球頭のラムを用いた２工程成形法が
ある。成形が完了した図を第１図ｂに示す。 The operation of the method for manufacturing the plastic mold constructed as described above will be explained below.
First, as shown in FIG. 1a, a plate material 2 is hydrostatically formed into a punch 1 using hydraulic or gas pressure. Superplastic materials have low deformation resistance and good mold conformability. As a superplastic material, for example, Zn−
When using 22Al alloy, it can be molded at 250°C. At this time, the cycle time can be molded in about 30 seconds to 3 minutes, depending on the shape. Therefore, hydrostatic pressure molding can be performed by heating the entire molding apparatus and applying pressure using, for example, silicone oil or Ar gas. Furthermore, uniform thickness of superplastic materials is generally performed by controlling strain rate distribution, temperature distribution, and frictional force; for example, there is a two-step molding method using a spherical-headed ram. A diagram of the completed molding is shown in Figure 1b.
成形が完了した後、板材２をポンチ１からとり
はずし、第１層と第３層をプラスチツク成形金型
の雄型と雌型とする。 After the molding is completed, the plate material 2 is removed from the punch 1, and the first and third layers are used as male and female molds of a plastic mold.
以下本発明の第２の実施例について説明する。
第２図は、本発明の第２の実施例を示すプラスチ
ツク成形金型の製造法のダイスを用いた場合の成
形装置の断面図である。図において、３はダイ
ス、４は３層に重ねた超塑性金属の板材である。
ポンチの場合と同様、板材４を液圧またはガス圧
によりダイス３へ静水圧成形する。成形完了後、
板材の第１層と第３層をプラスチツク成形金型の
雄型と雌型とする。 A second embodiment of the present invention will be described below.
FIG. 2 is a cross-sectional view of a molding apparatus in which a die is used in a method for manufacturing a plastic mold according to a second embodiment of the present invention. In the figure, 3 is a die, and 4 is a superplastic metal plate made of three layers.
As in the case of the punch, the plate material 4 is hydrostatically formed into the die 3 using hydraulic or gas pressure. After completing the molding,
The first and third layers of the plate material are used as male and female molds of a plastic mold.
発明の効果
このように本発明は、超塑性金属材料の板材を
３層に重ね、ポンチあるいはダイスのみで静水圧
絞り成形するものであるため、金型の雄型と雌型
を同時に成形することができる。また、全体とし
て構成を簡素化できる。Effects of the Invention As described above, in the present invention, three layers of superplastic metal plates are stacked and isostatically drawn using only punches or dies, so that the male and female molds can be formed at the same time. I can do it. Furthermore, the overall configuration can be simplified.
第１図と第２図は、本発明の実施例における加
工状態を示す断面図であり、第１図は、ポンチを
用いて金型を成形する製造プロセスを示し、ａは
加工前、ｂは加工後の断面図、第２図はダイスを
用いて金型を成形する製造プロセスを示す断面図
である。
１……ポンチ、２……超塑性金属の板材、３…
…ダイス、４……超塑性金属の板材。
1 and 2 are cross-sectional views showing the processing state in an embodiment of the present invention. FIG. 1 shows the manufacturing process of forming a mold using a punch, where a is before processing and b is before processing. A cross-sectional view after processing, and FIG. 2 is a cross-sectional view showing a manufacturing process of molding a mold using a die. 1...Punch, 2...Superplastic metal plate, 3...
...Dice, 4...Plate material of superplastic metal.
Claims (1)
塑性現象の発現温度にてポンチあるいはダイスの
みを使用して静水圧絞り成形を行ない、第１層と
第３層を雄型と雌型とするプラスチツク成形金型
の製造方法。1 Layer three layers of superplastic metal plates and perform isostatic drawing using only punches or dies at the temperature at which the superplastic phenomenon occurs, forming the first and third layers into male and female molds. A method of manufacturing a plastic mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58240219A JPS60130427A (en) | 1983-12-20 | 1983-12-20 | Manufacture of die for plastic forming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58240219A JPS60130427A (en) | 1983-12-20 | 1983-12-20 | Manufacture of die for plastic forming |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60130427A JPS60130427A (en) | 1985-07-11 |
| JPH0422650B2 true JPH0422650B2 (en) | 1992-04-20 |
Family
ID=17056218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58240219A Granted JPS60130427A (en) | 1983-12-20 | 1983-12-20 | Manufacture of die for plastic forming |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60130427A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2599652B2 (en) * | 1991-05-22 | 1997-04-09 | 臼井国際産業 株式会社 | Connection structure of branch pipe in high pressure fuel manifold |
-
1983
- 1983-12-20 JP JP58240219A patent/JPS60130427A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60130427A (en) | 1985-07-11 |
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