JPS59144588A - Manufacture of laminated die by laser working - Google Patents

Abstract

PURPOSE:To obtain a laminated die having high accuracy in the manufacture of the laminated die by a laser by irradiating the inside lateral surface along the cutting line with the laser to heat said surface then cutting the heated part by the laser except the beginning and end points and removing mechanically said parts. CONSTITUTION:The (a) of a plate material 1 refers to a case of forming a male die F and the (b) to a case of forming a female die F'. Broken lines are the lines to be hardened by laser irradiation along the cutting lines F, F' of the die and after the material is hardened along the broken lines the material is cut by using laser in conformity with the cutting lines F, F'. A beginning point S and an end point E in this stage are irradiated at a small space S and the part S is mechanically removed to eliminate the abnormality in the joint. Suitble hardened layers H, (h) are formed in the edge part of the dies and the laminated die having a long life is manufactured with good accuracy.

Description

【発明の詳細な説明】 この発明は、レーザ加工による積層金型の製作方法に関
づ゛るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a laminated mold by laser processing.

従来から薄板をレージビームによって切断し、これを積
層して金型を製作する方法は知られているが、パンチ又
はダイスを素材から複数個切抜いて、これを積層して固
定し、そのままパンチ又はダイスとして使用し′Ｃいる
ので、切刃部が短時間で摩耗するため、その利用は少量
生産用の金型の製作に限定されていた。また、従来の製
作方法は、！（ンチまたはダイスを素材からレーザにＪ
：って切抜く場合、第１図ａ又はｂのように、８点から
パンチ又はダイスの形状を表する閉曲線Ｅ又はＦに沿っ
て、矢印の方向に切断し、１点で終了する。Conventionally, it is known to cut thin plates with a laser beam and stack them to make a mold, but this method involves cutting out multiple punches or dies from the material, stacking them, fixing them, and then punching or dies as they are. Since it is used as a die, the cutting edge wears out in a short period of time, so its use has been limited to the production of molds for small quantity production. Also, the traditional production method is! (Cut the inch or die from the material to the laser)
: When cutting out, as shown in Figure 1 a or b, the cut is made from 8 points along the closed curve E or F representing the shape of the punch or die in the direction of the arrow, and ends at one point.

しかしこの方法によると、閉曲線上の１点は２回加熱さ
れるため、他より余分に溶融し、パンチ又はダイスの形
状が不正確になり、打抜かれた製品に「ばり」を生ずる
等の不都合があった。However, according to this method, since one point on the closed curve is heated twice, it melts more than the other points, resulting in inconveniences such as the shape of the punch or die becoming inaccurate and the production of "burrs" on the punched product. was there.

この発明は上気のような欠点を解消するためになされた
もので、長寿命、高精度の積層金型の製作方法を提供す
ることを目的とす゛るものである。This invention was made in order to eliminate the drawbacks such as air leakage, and its purpose is to provide a method for manufacturing a laminated mold with a long life and high precision.

次にこの発明について図面によって説明する。Next, this invention will be explained with reference to the drawings.

パンチ又はダイスの形状が第２図のａ、ｂのような閉曲
線Ｆ、Ｆ−の場合、これらと相似する点線で表した閉曲
線に沿い、レーザビームによって焼入をする。この場合
、レーザビームは切断時より直径を大きくし、またその
出力と移動速度を下げて、適正な幅と深さに焼が入るよ
うにする。If the shape of the punch or die is a closed curve F or F- such as a or b in FIG. 2, hardening is performed by a laser beam along the closed curves shown by dotted lines similar to these curves. In this case, the diameter of the laser beam is made larger than when cutting, and its power and moving speed are reduced to ensure that the laser beam is scorched to the appropriate width and depth.

焼入を終った素材は、第３図ａ、ｂに示すように、切断
かすどなる素材の部分に、切断の始点Ｓ及び終点Ｅを設
定し、始点Ｓから矢印の方向に、前記の閉曲線Ｆ又はＦ
−に沿い、レーザビームによって切断し、終点Ｅで切断
を終了する。即ち、従来の切断方法と異なり、閉曲線「
又はＥ′を１周する直前で僅かな非切断部Ｃ（１耗程度
である）を残り−ようにして切断し、非切断部Ｃは（幾
械的な方法（あるいはヤスリ等を含む）で除去加工【ノ
で仕上げれる。したがって、正確な形状をもつパンチ又
はダイスが製作される訳で゛ある。この例ではレーリ゛
切断の非切断部Ｃの個所で、レーリ゛ビームの往復の切
断線が平行になっているが、これを交差させた他の例を
、第４図ａ　、　Ｉ）に示しである。For the material that has been hardened, as shown in Figures 3a and 3b, the starting point S and the ending point E of cutting are set in the part of the material that will become the cutting residue, and the closed curve F is cut from the starting point S in the direction of the arrow. or F
-, cutting is performed by a laser beam, and the cutting is completed at the end point E. In other words, unlike conventional cutting methods, the closed curve "
Or, just before going around E', cut the slight uncut part C (about 1 wear), and cut the uncut part C by a mechanical method (or using a file, etc.). It can be finished by removal processing.Therefore, a punch or die with an accurate shape is manufactured.In this example, at the non-cutting part C of Rayleigh cutting, the reciprocating cutting line of the Rayleigh beam is are parallel, but another example in which they intersect is shown in Figure 4a, I).

レーリ゛ビームによる焼入と切断によって、素材（こ生
ずる硬化層の分布状態を、第５図ａ、［）に示しである
。ａ図はこの発明によって製作されたパンチの断面で、
切刃部に切断前の焼入による幅広い、また深い硬化層ト
１が存在す゛る。ｈはレーザ切断によって生じた硬化層
である。ｂ図（よ従来の方法によって製作されたパンチ
の断面である。ｈはａ図と同様にレーザ切断による硬化
層で、切刃部で特に狭く浅くなっている。The distribution of the hardened layer produced in the material by hardening and cutting with the Rayleigh beam is shown in Figure 5a, [). Figure a is a cross section of the punch manufactured by this invention.
There is a wide and deep hardened layer 1 on the cutting edge due to quenching before cutting. h is a hardened layer produced by laser cutting. Figure b (This is a cross-section of a punch manufactured by a conventional method. Similar to figure A, figure h is a hardened layer created by laser cutting, and the cutting edge is particularly narrow and shallow.

この発明において使用される加工機としては、線対称形
であるパンチとダイスを同一のプログラムを用い、ミラ
ーイメージというＮＣ装置の補助機能を利用できる点に
おいて、ＮＣ装置付が適当であるが、これに限定するも
の′ではない。It is appropriate for the processing machine used in this invention to be equipped with an NC device in that it uses the same program for punches and dies that are linearly symmetrical, and can utilize the auxiliary function of the NC device called mirror image. It is not limited to '.

以上のように、この発明の方法によって製作された金型
は、切刃部が幅広く、深く焼入されるので、長期間の使
用に耐え、また寸法精度が良いので「ぼり」等の発生が
なく、品質の良い製品を提供することが出来る。As described above, the mold manufactured by the method of the present invention has a wide cutting edge and is deeply hardened, so it can withstand long-term use, and has good dimensional accuracy, so it does not cause "burrs" etc. We are able to provide high quality products.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図ａ、１〕は従来のレーザビームによる金型の切断
方法、第２図ａ、ｂはこの発明のレーザ゛にＪ：る焼入
方法、第３図ａ、ｂ、第４図ａ、ｂｌｉＪこの発明のレ
ーザビームによる切断方法を示４−説明図である。第５
図はパンチのｍ１面の硬化層の分布を示づ説明図である
。 （図面の主要部分を表わす符号の説明）１・・・金型の
素＋Ｊ　　　　　Ｃ・・・非切断部１−１・・・レーザ
焼入による硬化層 特許出願人　　株式会社　ア　マ　ダ ５１１− １図 （ｂ）１・ ２１″”　（ｂ）Figures 1a and 1] show a conventional method of cutting a mold using a laser beam, Figures 2a and b show a hardening method using a laser according to the present invention, Figures 3a and b, and Figure 4a. , bliJ is a fourth explanatory view showing a cutting method using a laser beam according to the present invention. Fifth
The figure is an explanatory diagram showing the distribution of the hardened layer on the m1 side of the punch. (Explanation of symbols representing main parts of drawings) 1... Mold element + J C... Uncut portion 1-1... Hardened layer by laser hardening Patent applicant AMADA Co., Ltd. 511-1 Figure (b) 1・21″” (b)

Claims (1)

【特許請求の範囲】[Claims] し〜ザ加工による積載金型の製作法にして、素材をレー
ザビームにより、金型と相似する形状に焼入し、これを
金型の形状に、該形状の一部分を非切断部分として残し
てレーザビームで切断し、前記の非切断部分を機械的に
除去加工することにより、金型を製作することを特徴と
するレーザ加工にＪ、るｖ１層金型の製作方法。Using a method of manufacturing a loaded mold using laser processing, the material is hardened into a shape similar to the mold using a laser beam, and this is shaped into the shape of the mold, leaving a part of the shape as an uncut part. A method for manufacturing a 1-layer mold using laser processing, characterized in that the mold is manufactured by cutting with a laser beam and mechanically removing the uncut portion.