JPH01162571A - Manufacture of die - Google Patents
Manufacture of dieInfo
- Publication number
- JPH01162571A JPH01162571A JP32056987A JP32056987A JPH01162571A JP H01162571 A JPH01162571 A JP H01162571A JP 32056987 A JP32056987 A JP 32056987A JP 32056987 A JP32056987 A JP 32056987A JP H01162571 A JPH01162571 A JP H01162571A
- Authority
- JP
- Japan
- Prior art keywords
- die
- parting surface
- mold
- welding
- die block
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 238000003466 welding Methods 0.000 claims abstract description 26
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 8
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 12
- 229910001315 Tool steel Inorganic materials 0.000 abstract description 8
- 229910001208 Crucible steel Inorganic materials 0.000 abstract description 5
- 238000003754 machining Methods 0.000 abstract description 3
- 238000000151 deposition Methods 0.000 abstract 1
- 238000007599 discharging Methods 0.000 abstract 1
- 229910000851 Alloy steel Inorganic materials 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 3
- 239000010962 carbon steel Substances 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 238000009760 electrical discharge machining Methods 0.000 description 3
- 241000316887 Saissetia oleae Species 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Abstract
Description
【発明の詳細な説明】 発明の目的 （産業上の利用分野） 本発明は金型の製造方法に関するものである。[Detailed description of the invention] Purpose of invention (Industrial application field) The present invention relates to a method for manufacturing a mold.
（従来の技術）
一般に、金型における型部分及びその周囲の見切り面に
は耐摩耗性、耐熱性、耐衝撃性等の種々の性質が要求さ
れている。(Prior Art) Generally, the mold portion of a mold and its surrounding parting surfaces are required to have various properties such as wear resistance, heat resistance, and impact resistance.
これらの要求を満たすため、金型のダイブロックは工具
鋼、構造用合金鋼、機械構造用炭素鋼等から構成され、
このダイブロックの見切り面に機械加工あるいは放電加
工等を施して必要とする型の形状を形成する製造方法を
実流している。すなわち、金型は全体が同一金属からな
っている。In order to meet these requirements, die blocks for molds are made of tool steel, structural alloy steel, carbon steel for machine structures, etc.
We are currently implementing a manufacturing method in which the cutout surface of this die block is subjected to machining, electrical discharge machining, or the like to form the required shape of the die. That is, the entire mold is made of the same metal.
（発明が解決しようとする問題点）
ところが、上述の工具鋼、構造用合金鋼、機械構造用炭
素鋼等は高価なため、これを全体に使用した上記金型も
非常に高価なものとなってしまうという問題点がある。(Problem to be Solved by the Invention) However, since the above-mentioned tool steel, structural alloy steel, mechanical structural carbon steel, etc. are expensive, the above-mentioned mold using these as a whole is also very expensive. There is a problem with this.
本発明の目的は安価な材料費で金型を製作できる製造方
法を提供することにある。An object of the present invention is to provide a manufacturing method that allows molds to be manufactured at low material costs.
発明の構成
（問題点を解決するための手段）
すなわち、本発明は後記する実施例の図面に示すように
、ダイブロックの見切り面が所要の型形状から一定寸法
の肉厚を差し引いたおよその形状となるようにダイブロ
ックを形成し、前記見切り面に対して肉盛り溶接をする
ことによってダイブロックとは異種金属からなる溶着層
を形成し、この溶着層の表面を切除加工することによっ
て見切り面に所要の型部分を形成したものである。Structure of the Invention (Means for Solving Problems) That is, as shown in the drawings of the embodiments described later, the present invention provides that the parting surface of the die block has an approximate shape obtained by subtracting the wall thickness of a certain dimension from the required die shape. A die block is formed so as to have the same shape, and a welded layer made of a different metal is formed by overlay welding on the parting surface, and the surface of this welded layer is cut and processed to form a parting. The required mold part is formed on the surface.
（作用）
そして、型部分表面の溶着層とダイブロックとは異種金
属で構成され、前記溶着層の金属が占める割合はダイブ
ロック全体と比較してはるかに少量となる。従って、溶
着金属に高価な材料を採用しても金型全体の材料費に大
きな影響を及ぼすことはない。(Function) The welding layer on the surface of the mold part and the die block are composed of different metals, and the proportion of the metal in the welding layer is much smaller than that of the die block as a whole. Therefore, even if an expensive material is used for the weld metal, the material cost of the entire mold will not be significantly affected.
（実施例）
以下、この発明をプラスチック成形金型の製造方法とし
て具体化した一実施例について第１図から第３図に従っ
て説明する。(Example) Hereinafter, an example in which the present invention is embodied as a method for manufacturing a plastic mold will be described with reference to FIGS. 1 to 3.
第１図に示すように、ダイブロック１の見切り面２の中
央には凸形状の型部分３が突設されている。このダイブ
ロック１の型部分３とその周囲を取り巷く見切り面２の
表面全体には工具鋼からなる７〜１０リミ前後の厚さの
溶着層４が形成されている。また、ダイブロック１のこ
の溶着層４以外の部分はすべて鋳鋼で構成されている。As shown in FIG. 1, a convex mold portion 3 is protruded from the center of the parting surface 2 of the die block 1. As shown in FIG. A welding layer 4 made of tool steel and having a thickness of approximately 7 to 10 mm is formed on the entire surface of the mold portion 3 of the die block 1 and the parting surface 2 surrounding it. Further, all parts of the die block 1 other than this welded layer 4 are made of cast steel.
上記のような金型の型部分を製作するには、まず、ダイ
ブロック１を鋳鋼により鋳造する。第２図に仮想線で示
すように、この鋳造時には同ダイブロック１の見切り面
２に、完成時に形成されるべき型部分３の凸形状（所要
の型形状）と比較して溶接しろとしての一定寸法の肉厚
を差し引いたおよその凸形状が形成されるように鋳造す
る。To manufacture the mold part of the mold as described above, first, the die block 1 is cast from cast steel. As shown by the imaginary line in Fig. 2, during this casting, the parting surface 2 of the die block 1 has a welding margin compared to the convex shape (required mold shape) of the mold part 3 to be formed at the time of completion. Casting is performed so that an approximate convex shape is formed by subtracting the wall thickness of a certain dimension.
次に、前記型部分３及び見切り面２の表面をフライス盤
等で荒削りして黒皮を除去し、ダイブロック１を第２図
の実線で示すような形状にする。Next, the surfaces of the mold portion 3 and the parting surface 2 are roughly cut using a milling machine or the like to remove black scale, and the die block 1 is shaped as shown by the solid line in FIG. 2.
この荒削りは次に行なう溶接作業の下地作りを目的とす
るものであるため、通常の荒削りよりさらにラフでよい
。Since this rough cutting is intended to prepare the groundwork for the next welding operation, it may be rougher than normal rough cutting.
さらに、第３図に示すように、この黒皮の切除部分、す
なわち型部分３と見切り面２に被覆溶接棒を使用したア
ーク溶接により肉盛りを行なう。Further, as shown in FIG. 3, the removed portions of the black scale, that is, the mold portion 3 and the parting surface 2, are overlaid by arc welding using a coated welding rod.
これにより、前記型部分３及び見切り面２の全体には１
０〜１５リミ前後の厚さの工具鋼からなる溶着層４が形
成される。この溶着層４の厚さは後に行なう型彫りの仕
上しるによる減少分を見込んでいる。As a result, the mold portion 3 and the parting surface 2 have a total of 1
A weld layer 4 made of tool steel with a thickness of about 0 to 15 mm is formed. The thickness of the welding layer 4 takes into account the reduction due to finishing of die engraving to be performed later.
上記肉盛りに使用する被覆溶接棒は、炭素含有量的０．
０３％の炭素鋼により形成された溶接棒に、５ＫＤ６２
鋼と類似の組成（ただし、モリブデンの量が１％はど多
い）の合金を主成分とするフラックスを被覆することに
より形成されている。The coated welding rod used for the build-up mentioned above has a carbon content of 0.
5KD62 to the welding rod made of 03% carbon steel.
It is formed by coating with a flux whose main component is an alloy with a similar composition to steel (however, the amount of molybdenum is 1% higher).
また、母材としてのダイブロック１を約４３０℃に予熱
し、溶接終了までこの温度を保つ。溶接棒は進行方向に
少し傾けてアークを短く保つようにし、溶接後、残菌応
力の除去のため溶着層表面にピーニングを施す。ざらに
、大気中で約１７５℃まで徐冷した後、５４０〜６００
℃に保った炉内に母材の厚さ２５．４リミ当り１時間の
割で保存し、次いで炉内から取り出して大気中で冷却す
る。Further, the die block 1 as the base material is preheated to about 430° C. and maintained at this temperature until the welding is completed. The welding rod is tilted slightly in the direction of travel to keep the arc short, and after welding, the surface of the weld layer is peened to remove residual bacterial stress. Roughly, after slowly cooling in the air to about 175℃,
The sample was stored in a furnace maintained at a temperature of 1 hour per 25.4 mm of base material thickness, and then taken out from the furnace and cooled in the atmosphere.
そして、放電加工によって型彫りを行ない最終的な型形
状（所要の型形状）を形成する。Then, die carving is performed by electric discharge machining to form the final die shape (required die shape).
上記のような金型の製造方法によれば、高価な工具鋼は
ダイブロック１表面の溶着層４のみであり、ダイブロッ
ク１本体は別の金属で製作することができる。従って、
金型の材料費を低減させることができる。According to the mold manufacturing method as described above, only the welding layer 4 on the surface of the die block 1 is made of expensive tool steel, and the main body of the die block 1 can be made of another metal. Therefore,
The material cost of the mold can be reduced.
また、本実施例の金型の製造方法によれば、放電加工の
前にすでにおよその型部分３の形状が形成されているた
め、放電加工により切除すべき量は少量で済む。従って
、同加工に要する時間を短縮し加工コストを低減させる
ことができる。Furthermore, according to the mold manufacturing method of this embodiment, since the approximate shape of the mold portion 3 has already been formed before electrical discharge machining, only a small amount is required to be removed by electrical discharge machining. Therefore, the time required for the processing can be shortened and the processing cost can be reduced.
なお、本実施例ではダイブロック１の素材として鋳鋼を
使用し、一方、溶接棒は溶着層４が工具鋼として形成さ
れるものを選定したが、金型の用途によって両者の材質
をそれぞれ変え、例えば、ダイブロック１には鋳鉄を使
用し、溶接棒は溶着層が構造用合金鋼として形成される
ものを使用してもよい。In this example, cast steel was used as the material for the die block 1, and a welding rod with the weld layer 4 formed of tool steel was selected, but the materials of both may be changed depending on the purpose of the mold. For example, the die block 1 may be made of cast iron, and the welding rod may have a welded layer formed of structural alloy steel.
また、本実施例ではアーク溶接によって溶着層４を形成
したが、本発明はこれに限定されず、例えばティグ溶接
によって溶着層４を形成してもよい。Moreover, although the welded layer 4 was formed by arc welding in this embodiment, the present invention is not limited to this, and the welded layer 4 may be formed by, for example, TIG welding.
ざらに、本実施例ではプラスチック成形金型の凸形状の
型部分３を形成する場合について説明したが、本実施例
の金型の相手側となる凹形状の金型の製造に適用しても
よいし、例えば、プレス加工用金型や鋳造用金型に適用
してもよい。Roughly speaking, this example describes the case of forming the convex mold part 3 of a plastic mold, but it may also be applied to manufacturing a concave mold that is the counterpart of the mold of this example. Alternatively, the present invention may be applied to, for example, a press mold or a casting mold.
このように、本発明は前記実施例に限定されるものでは
なく、この発明の趣旨から逸脱しない範囲で任意に変更
してもよい。As described above, the present invention is not limited to the embodiments described above, and may be modified as desired without departing from the spirit of the invention.
発明の効果
以上詳述したように、本発明によれば安価な材料費で金
型を製作できるという産業利用１優れた効果を奏する。Effects of the Invention As detailed above, the present invention has an excellent effect in industrial application 1 in that a mold can be manufactured with low material costs.
第１図は本発明の金型の製造方法で製造したダイブロッ
クを示す断面図、第２図は肉盛り溶接前のダイブロック
を示す断面図、第３図は肉盛り溶接後のダイブロックを
示す断面図である。
ダイブロック１、見切り面２、型部分３、溶着層４゜Fig. 1 is a sectional view showing a die block manufactured by the mold manufacturing method of the present invention, Fig. 2 is a sectional view showing the die block before overlay welding, and Fig. 3 is a sectional view showing the die block after overlay welding. FIG. Die block 1, parting surface 2, mold part 3, welding layer 4°
Claims (1)
状から一定寸法の肉厚を差し引いたおよその形状となる
ようにダイブロック（１）を形成し、前記見切り面（２
）に対して肉盛り溶接をすることによつてダイブロック
（１）とは異種金属からなる溶着層（４）を形成し、こ
の溶着層（４）の表面を切除加工することによって見切
り面（２）に所要の型部分（３）を形成することを特徴
とする金型の製造方法。1. Form the die block (1) so that the parting surface (2) of the die block (1) has an approximate shape obtained by subtracting a certain dimension of wall thickness from the desired mold shape, and
) by overlay welding to form a welded layer (4) made of a different metal from the die block (1), and by cutting the surface of this welded layer (4), the parting surface ( 2) A method for manufacturing a mold, which comprises forming a required mold portion (3) in the mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32056987A JPH01162571A (en) | 1987-12-17 | 1987-12-17 | Manufacture of die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32056987A JPH01162571A (en) | 1987-12-17 | 1987-12-17 | Manufacture of die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01162571A true JPH01162571A (en) | 1989-06-27 |
Family
ID=18122899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32056987A Pending JPH01162571A (en) | 1987-12-17 | 1987-12-17 | Manufacture of die |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01162571A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106825264A (en) * | 2017-04-20 | 2017-06-13 | 重庆大学 | A kind of insert manufacture method and method for repairing and mending for hot stamping die |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57139469A (en) * | 1981-02-24 | 1982-08-28 | Mitsubishi Electric Corp | Manufacture of die for press forming |
-
1987
- 1987-12-17 JP JP32056987A patent/JPH01162571A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57139469A (en) * | 1981-02-24 | 1982-08-28 | Mitsubishi Electric Corp | Manufacture of die for press forming |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106825264A (en) * | 2017-04-20 | 2017-06-13 | 重庆大学 | A kind of insert manufacture method and method for repairing and mending for hot stamping die |
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