JPH07100191B2 - Blanking method - Google Patents
Blanking methodInfo
- Publication number
- JPH07100191B2 JPH07100191B2 JP489A JP489A JPH07100191B2 JP H07100191 B2 JPH07100191 B2 JP H07100191B2 JP 489 A JP489 A JP 489A JP 489 A JP489 A JP 489A JP H07100191 B2 JPH07100191 B2 JP H07100191B2
- Authority
- JP
- Japan
- Prior art keywords
- blank
- blade
- forming
- scrap
- angle
- 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 - Lifetime
Links
Landscapes
- Punching Or Piercing (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明はアルミニウム材、アルミニウム合金材またはこ
れらの複合材の板材（以下単にアルミニウム板材とい
う。）から面取り部を有したブランク材をブランキング
する方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention blanks a blank material having a chamfer from a plate material of aluminum material, aluminum alloy material or a composite material of these materials (hereinafter simply referred to as aluminum plate material). It is about the method.
（従来の技術） 従来アルミニウム板材からブランク材を打ち抜くと同時
に面取り部を形成するブランキング方法とは、面取り部
形成用のＶ時型の刃のついた金型でアルミニウム板材を
プレス加工してＶ字形の溝を形成し、同時にあるいは次
工程で打ち抜くという方法である。(Prior Art) A blanking method in which a blank material is punched out from an aluminum plate material at the same time and a chamfered portion is formed at the same time is that a V-shaped die for forming a chamfered portion is used to press an aluminum plate material to form a V plate. It is a method of forming a V-shaped groove and punching at the same time or in the next step.
（発明が解決しようする課題） しかし、面取り部形成の際に従来の金型では、スクラッ
プ側とブランク側の傾斜角度が対称をなすＶ字形の刃が
アルミニウム板材に押し込まれるために、その部分が刃
の前後面からおされブランク材の端部の面取り部に続く
製品面上に盛り上がりを生じさせる。(Problem to be Solved by the Invention) However, when forming a chamfered portion, in a conventional die, a V-shaped blade having a symmetrical inclination angle between the scrap side and the blank side is pushed into the aluminum plate material, and thus the portion is cut. It is passed from the front and rear surfaces of the blade to cause a bulge on the product surface following the chamfered portion at the end of the blank material.
この程度の盛り上がりは従来ほとんど問題になっていな
かった。しかしながら、最近品質に対する要求水準が高
まるに伴ない表面がさらに高い平坦、平滑性が要求さ
れ、従来の方法による面取り部を有したブランク材、又
はそのブランク材を利用して後加工を行った製品では十
分満足できるものとはなり難い。This level of excitement has rarely been a problem. However, with the recent increase in the required level of quality, the surface is required to have higher flatness and smoothness, and a blank material having a chamfered portion by a conventional method, or a product obtained by post-processing using the blank material. It's hard to be satisfied with that.
本発明は上記従来の技術の問題点を解決して、表面が従
来になく平坦、平滑となるアルミニウム板材のブランキ
ング方法を提供するものである。The present invention solves the above-mentioned problems of the prior art and provides a blanking method for an aluminum plate material having a surface that is flat and smooth as never before.
（課題を解決するための手段） 本発明者らは、Ｖ字型の刃の先端角のスクラップ側とブ
ランク側との傾斜角を非対称にすることにより、刃が材
料に押し込まれる際に生じる合力の向きをコントロール
できることに着目し、ブランク側の盛り上がりの原因と
なる材料をスクラップ側に移動させるために、面取り部
形成用の刃の先端角のスクラップ側の角度を刃の先端角
のブランク側の角度より小さくすることにより本発明を
完成するに至った。(Means for Solving the Problem) The present inventors have made the resultant force when the blade is pushed into the material by making the inclination angle of the tip side of the V-shaped blade between the scrap side and the blank side asymmetric. Focusing on the fact that the direction of the blade can be controlled, the angle of the tip side of the blade for forming the chamfered part on the scrap side is set to the blade side of the blank side in order to move the material that causes rise on the blank side to the scrap side. The present invention has been completed by making the angle smaller than the angle.
すなわち本発明はアルミニウム材、アルミニウム合金材
またはこれらの複合材の板材からスクラップ部を残して
ブランク材を打ち抜く際に、同時に面取り部を形成する
ブランキング方法において、面取り部形成用の刃の先端
角のスクラップ側の傾斜角度をブランク側の傾斜角度よ
りも小さくすることを特徴とするブランキング方法を提
供するものである。That is, the present invention is a blanking method for forming a chamfered portion at the same time when a blank material is punched out from a plate material of an aluminum material, an aluminum alloy material or a composite material thereof, leaving a scrap portion, and a tip angle of a blade for forming a chamfered portion. The blanking method is characterized in that the inclination angle on the scrap side is smaller than the inclination angle on the blank side.
本発明に使用するアルミニウム板材としては、アルミニ
ウム材、アルミニウム合金材またはそれらの複合材を用
いることができ、その板厚は2mm以下が好ましい。板厚
が2mm以下であれば、よりブランク材の端部盛り上がり
量を減少させることができる。As the aluminum plate material used in the present invention, an aluminum material, an aluminum alloy material or a composite material thereof can be used, and the plate thickness thereof is preferably 2 mm or less. If the plate thickness is 2 mm or less, it is possible to further reduce the amount of protrusion of the blank material at the end portion.
また本発明においては、面取り部形成用の刃のスクラッ
プ側の傾斜角度をブランク側の傾斜角度より小さくす
る。なお、刃のスクラップ側の傾斜角度は45°以下が好
ましく、刃のブランク側の傾斜角度は製品の要求される
角度に対応する。Further, in the present invention, the inclination angle of the blade for forming the chamfered portion on the scrap side is made smaller than the inclination angle on the blank side. The inclination angle of the blade on the scrap side is preferably 45 ° or less, and the inclination angle of the blade on the blank side corresponds to the angle required by the product.
（実施例） 以下実施例に基づいて本発明を詳細に説明する。(Example) Hereinafter, the present invention will be described in detail based on examples.
5086−Ｈ材、厚さ1.3mmの板材から中心にい穴のあいた
円形ブランク材を打ち抜く加工において、第１図に示す
ように、板材１に面取り部形成用の刃２の先端を垂直に
当て、刃２のスクラップ側の傾斜角度をＡ、刃２のブラ
ンク側の傾斜角度をＢとし、各Ａ、Ｂの角度を変えて各
盛り上り量を調べた。盛り上り量は端部のプロフィール
形状において平坦な表面を基準とした際の起伏量として
求めた。In the process of punching a circular blank material with a hole in the center from a 5086-H material, a plate material with a thickness of 1.3 mm, as shown in Fig. 1, the tip of a blade 2 for forming a chamfer is vertically applied to the plate material 1. The inclination angle of the blade 2 on the scrap side was A, and the inclination angle of the blade 2 on the blank side was B. The angles of A and B were changed and the amount of each rise was examined. The amount of swelling was calculated as the amount of undulation when the flat surface of the profile shape of the end portion was used as a reference.
第１表の結果が示すように、スクラップ側の刃角度Ａを
ブランク側の刃角度Ｂより小さい角度にすれば、ブラン
ク端部の盛り上り量を小さくすることが出来ることが分
かる。特に実施例には示さなかったが、このブランキン
グ法において面取り部形成の前にブランクの外周に沿っ
て捨て穴を抜いておき、スクラップを逃げやすくしてお
くことにより、より端部の盛り上り量を減少させること
が出来る。 As the results in Table 1 show, it can be seen that if the blade angle A on the scrap side is set to be smaller than the blade angle B on the blank side, the amount of protrusion at the end of the blank can be reduced. Although not shown in the examples in particular, in this blanking method, by forming a waste hole along the outer periphery of the blank before forming the chamfered portion so that the scrap can easily escape, the swelling of the end portion is further improved. The amount can be reduced.
（発明の効果） 以上説明した様に本発明によれば、面取り部を有したブ
ランク材をアルミニウム板材から打ち抜く際に、ブラン
ク材の端部盛り上り量を減少させることが出来る。この
ことにより表面が平坦、平滑である質のよいブランクを
供給することができる。(Effect of the Invention) As described above, according to the present invention, when punching a blank material having a chamfered portion from an aluminum plate material, it is possible to reduce the amount of rising of the end portion of the blank material. This makes it possible to supply a good quality blank having a flat and smooth surface.
第１図は本発明実施例において面取り部形成用の刃先端
をアルミニウム板材に当てたときの断面図を示す。 １……アルミニウム板材、２……面取り形成用刃 A,B……刃の先端角。FIG. 1 shows a cross-sectional view when the tip of a blade for forming a chamfer is applied to an aluminum plate material in the embodiment of the present invention. 1 ... Aluminum plate material, 2 ... Chamfer forming blades A, B ... Blade tip angles.
フロントページの続き (72)発明者 畑 知克 栃木県日光市清滝丹勢町610 (72)発明者 山崎 淳 栃木県宇都宮市鶴田町７―62 (72)発明者 吉田 昭茂 神奈川県横浜市南区別所中里台26―１― 206 (56)参考文献 特開 平１−113131（ＪＰ，Ａ) 実開 昭57−3426（ＪＰ，Ｕ)Front page continuation (72) Inventor Tomokatsu Hata 610 Kiyotaki Tanse-cho, Nikko-shi, Tochigi Prefecture (72) Inventor Jun Yamazaki 7-62 Tsuruta-cho, Utsunomiya-shi, Tochigi Prefecture (72) Inventor Akemi Yoshida Minami-shi, Yokohama-shi Tonakazatodai 26-1-206 (56) Reference Japanese Patent Laid-Open No. 1-113131 (JP, A) Shoukai 57-3426 (JP, U)
Claims (1)
はこれらの複合材の板材からスクラップ部を残してブラ
ンク材を打ち抜く際に、同時に面取り部を形成するブラ
ンキング方法において、面取り部形成用の刃の先端角の
スクラップ側の傾斜角度をブランク側の傾斜角度よりも
小さくすることを特徴とするブランキング方法。Claim: What is claimed is: 1. A blanking method for forming a chamfered portion at the same time when a blank material is punched out from a plate material of an aluminum material, an aluminum alloy material or a composite material of these materials, leaving a scrap portion, and a tip of a blade for forming the chamfered portion. A blanking method characterized in that the angle of inclination of the corner on the scrap side is made smaller than the angle of inclination of the blank side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP489A JPH07100191B2 (en) | 1989-01-04 | 1989-01-04 | Blanking method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP489A JPH07100191B2 (en) | 1989-01-04 | 1989-01-04 | Blanking method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02182326A JPH02182326A (en) | 1990-07-17 |
| JPH07100191B2 true JPH07100191B2 (en) | 1995-11-01 |
Family
ID=11462337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP489A Expired - Lifetime JPH07100191B2 (en) | 1989-01-04 | 1989-01-04 | Blanking method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07100191B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8877241B2 (en) | 2003-03-26 | 2014-11-04 | Egalet Ltd. | Morphine controlled release system |
| US9005660B2 (en) | 2009-02-06 | 2015-04-14 | Egalet Ltd. | Immediate release composition resistant to abuse by intake of alcohol |
| US9023394B2 (en) | 2009-06-24 | 2015-05-05 | Egalet Ltd. | Formulations and methods for the controlled release of active drug substances |
| US9044402B2 (en) | 2012-07-06 | 2015-06-02 | Egalet Ltd. | Abuse-deterrent pharmaceutical compositions for controlled release |
-
1989
- 1989-01-04 JP JP489A patent/JPH07100191B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8877241B2 (en) | 2003-03-26 | 2014-11-04 | Egalet Ltd. | Morphine controlled release system |
| US9005660B2 (en) | 2009-02-06 | 2015-04-14 | Egalet Ltd. | Immediate release composition resistant to abuse by intake of alcohol |
| US9023394B2 (en) | 2009-06-24 | 2015-05-05 | Egalet Ltd. | Formulations and methods for the controlled release of active drug substances |
| US9044402B2 (en) | 2012-07-06 | 2015-06-02 | Egalet Ltd. | Abuse-deterrent pharmaceutical compositions for controlled release |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02182326A (en) | 1990-07-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6315048B2 (en) | ||
| JP2005119320A (en) | Saw blade | |
| GB2026625A (en) | Making bearings | |
| JPH08216098A (en) | Blanking blade | |
| JPH07100191B2 (en) | Blanking method | |
| US6553869B1 (en) | Method of forming a toothed cutting blade | |
| JP2877962B2 (en) | Axle case side plate manufacturing method | |
| JPS63154216A (en) | Manufacture of long flange product | |
| JP2718253B2 (en) | Shearing method for plate material dripping and step prevention | |
| JP2661287B2 (en) | Punching method to prevent drooling and burrs | |
| JPH091419A (en) | Shearing cutter, and shearing work method | |
| JPS59220215A (en) | Press working method | |
| JPH0810865A (en) | Device for finishing circumferential face of press article and method therefor | |
| JP3585547B2 (en) | Manufacturing method of strip with irregular cross section and roll with ridges | |
| JP4486186B2 (en) | Workpiece structure and processing method thereof | |
| JP2000312924A (en) | Work corner edge molding | |
| JPH0444264Y2 (en) | ||
| JPS5844942A (en) | Trimming method for end face of link for catapillar and its punching unit | |
| JP7359707B2 (en) | Press-formed product manufacturing method and press-formed product manufacturing device | |
| JPH0824959A (en) | Press die | |
| JPH0317608B2 (en) | ||
| JPH09253756A (en) | Frame casing process of hollow rectangular tube member | |
| SU1271615A1 (en) | Successive forming process | |
| JPS6316829A (en) | Manufacture of single edge cutter | |
| JPH07102410B2 (en) | How to cut panel products |