JPS6018233A - Hole working method using viscous and plastic medium - Google Patents

Abstract

PURPOSE:To work quickly a hole to a thin metallic sheet without wasting a special viscous and plastic medium by placing said medium on the thin metallic sheet placed on a die and compressing impulsively the sheet by using a compressing plate. CONSTITUTION:A thin metallic sheet 4 is placed on a die 5 and a viscous and plastic medium 2 is installed concentrically with the die hole via a positioning plate 4. A compressing plate 1 is lowered to compress impulsively the medium 2 in a semi-hermetic state at a speed of >=0.1m/S. Stress is thus concentrated near the die hole and a hole of the same shape as the shape of the die hole is pierced to the sheet 4. A plastic single or composite material which has a positive viscosity at the service temp. and retrains >=45% permanent set after 50% compressive strain is applied thereto and consists essentially of a high polymer or metal is used for said medium 2. Since no punch is used in this method, the method is effective in working a hole to a glass plate, etc.

Description

【発明の詳細な説明】 この発明はポンチを用いることなく簡便に金属などの薄
板に穴あけ加工を行う方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for easily drilling holes in a thin plate of metal or the like without using a punch.

従来、このための方法として液封Ｃおよびゴムが使用さ
れている。液体の場合、加圧膜（ＲＨに費用がかかる」
二もれが常に問題となる。コムの場合、老化および損傷
に伴う廃ゴム処理が難点である。Conventionally, liquid seal C and rubber have been used as a method for this purpose. In the case of liquids, pressurized membrane (RH is expensive)
Leakage is always a problem. In the case of combs, disposal of waste rubber due to aging and damage is a difficult point.

この発明は、粘塑性媒体の流動応力の動特性と摩擦を利
用した加圧原理を採用することにより、従来法の欠点を
除いた穴あけ加工法を得ることを目的としている。The object of the present invention is to obtain a drilling method that eliminates the drawbacks of conventional methods by employing a pressurizing principle that utilizes the dynamic characteristics of flow stress of a viscoplastic medium and friction.

この発明による金属薄板の穴あけ加工の実施例を図面に
もとづいて説明すれば次の通りである。An example of drilling a hole in a thin metal plate according to the present invention will be described below with reference to the drawings.

ダイス６の上に金属薄板乏裁せ、位置決めプレート３を
介して粘塑性媒体２をダイス穴と同心に設置する。次い
て圧縮板１を下降させて半密閉仏前で粘塑性媒体２を衝
撃的に圧縮する。この際媒体の粘性とフリクションヒル
によりダイス穴近辺に圧力が集中的に発生し、これによ
り金属薄板４にダイス穴と同一形状の穴がせん孔される
。変形した媒体は金属薄板４からはく部した後、成形も
しくは溶解・鋳造によりもとの形状に戻す。A thin metal plate is cut on top of the die 6, and the viscoplastic medium 2 is placed concentrically with the die hole via the positioning plate 3. Next, the compression plate 1 is lowered to impact-compress the viscoplastic medium 2 in the semi-closed front. At this time, pressure is generated intensively in the vicinity of the die hole due to the viscosity of the medium and the friction hill, and as a result, a hole having the same shape as the die hole is drilled in the thin metal plate 4. After the deformed medium is peeled off from the thin metal plate 4, it is returned to its original shape by molding or melting/casting.

以上のようにして、媒体をむだにすることなくかつ従来
法に比べて簡単な設備でじん速に穴あけ加工を行うこと
ができる。In the manner described above, drilling can be performed quickly without wasting the medium and with simpler equipment than in conventional methods.

この加圧方式の特徴は、選択的に必要箇所に加圧できる
こと、粘塑性媒体の殿械的性質しだいて局所的に所要の
高圧を発生できること、および高圧に対する安全性が高
いことである。The characteristics of this pressurization method are that pressure can be applied selectively to the required locations, that the required high pressure can be generated locally depending on the mechanical properties of the viscoplastic medium, and that it is highly safe against high pressure.

この発明ではポンチを用いないため、原理的には加工で
きる穴の寸法に下限はなく、通常寸法の穴あけ加工のほ
か従来の打抜き加工法では困難な０．１ｍｍ以下の微細
穴の加工に効果がある。また、自然発生する静水圧力に
より、従来法では困難なぜい性イオ別、例えばガラス板
の穴あけ加工にも効果がある。Since this invention does not use a punch, there is in principle no lower limit to the size of the hole that can be machined, and it is effective not only for drilling holes of normal size but also for drilling microscopic holes of 0.1 mm or less, which are difficult with conventional punching methods. be. Furthermore, due to the naturally generated hydrostatic pressure, it is effective in removing brittle ions, which is difficult to do with conventional methods, such as drilling holes in glass plates.

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

図はこの発明による工具の配置例を断面図で示したもの
て゛ある。 】・・・・・・・圧縮板、２・・・・・・・粘塑性媒体
、３・・・・・・・位置決めプレート、４　・・・・・
・・金属薄板、５・・・・・・・ダイス、 特許出願人　黒崎　端 手続補正書（方式） ％式％ ］ １、小作の表示　昭和５８イｆ特Ｅｒ’Ｆ［ｉ第１２５
６７４号２、発明の名称　粘塑性媒体をＩｉＪ　ｌ／）
１こりくあむ１加工法３、補正をする者 事件との関係　特許出願人 ４、代理人 住所（居所） 氏名（名称）［１ｊ ５、ｔ１■１１：、命令の［■付　昭旧１５８４ゞ１０
月１日図面 ７、ｒ市１１：、の内容 （１）　願書、図面は別紙の辿り （２）明細書Ｐ、３Ｆ−図は」を１］刺１番は−こＴｉ
１７正１辺　１The figure is a sectional view showing an example of the arrangement of tools according to the present invention. ]......Compression plate, 2...Viscoplastic medium, 3...Positioning plate, 4...
...Thin metal plate, 5...Dice, Patent applicant Kurosaki End procedure amendment (method) % formula % ] 1. Indication of tenant work 1980 Special Er'F [i No. 125
674 No. 2, Title of the invention Viscoplastic medium IiJ l/)
1. Processing method 3. Relationship with the person making the amendment Patent applicant 4. Agent address (residence) Name 10
Month 1 Drawing 7, R City 11:, Contents (1) The application and drawings are attached to the attached sheet (2) Specification P, 3F - Figures are 1] String number 1 is - Ko Ti
17 regular side 1

Claims (1)

【特許請求の範囲】 １　圧縮板（１）を粘塑性媒体（２）に０１１ｍ／ｓ以
上の速度で衝突させることにより薄板に任意形状の穴を
打抜く方法。ただし粘塑性媒体を次の条件を満す利叫に
限定する。 使用温度において正の粘性を有し、５０％圧縮ひずみ付
与法に永久ひずみが４５％以上残留する可塑性単−利料
、もしくは複合月料で、その主成分は高分子もしくは金
属であること。[Claims] 1. A method for punching holes of arbitrary shapes in a thin plate by colliding a compression plate (1) with a viscoplastic medium (2) at a speed of 0.11 m/s or more. However, the viscoplastic medium is limited to those that meet the following conditions. A plastic monomer or composite material having positive viscosity at the operating temperature and having a permanent strain of 45% or more after applying a 50% compressive strain, the main component of which is a polymer or metal.