JPH01321125A - Electrode for wire-cut electric discharge machining - Google Patents
Electrode for wire-cut electric discharge machiningInfo
- Publication number
- JPH01321125A JPH01321125A JP15427088A JP15427088A JPH01321125A JP H01321125 A JPH01321125 A JP H01321125A JP 15427088 A JP15427088 A JP 15427088A JP 15427088 A JP15427088 A JP 15427088A JP H01321125 A JPH01321125 A JP H01321125A
- Authority
- JP
- Japan
- Prior art keywords
- wire
- machining
- wire electrode
- electrode
- discharge machining
- 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
- 238000003754 machining Methods 0.000 title claims abstract description 41
- 239000002184 metal Substances 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 5
- 238000009763 wire-cut EDM Methods 0.000 claims description 3
- 238000009760 electrical discharge machining Methods 0.000 claims 1
- 238000007599 discharging Methods 0.000 abstract description 6
- 230000000149 penetrating effect Effects 0.000 abstract description 3
- 238000005187 foaming Methods 0.000 abstract 2
- 239000012530 fluid Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000002699 waste material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
Landscapes
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、ワイヤカット放電加工装置のワイヤ電極に関
するもので、特に高速度にて加工する際に、ワイヤｔＷ
と被加工物との間隙に大量に発生する加工屑を効率的に
排出できる構造のワイヤ電極に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a wire electrode for a wire-cut electrical discharge machining device, and particularly when machining at high speed, the wire tW
The present invention relates to a wire electrode having a structure that can efficiently discharge a large amount of processing waste generated in the gap between the workpiece and the workpiece.
第８図は従来のワイヤカット放°醒加工装置の一例を示
す説明図で、（１）は供給ボビン（２）から送り出され
るワイヤ電Ｌ （３）は電磁ブレーキ（３ａ）に真結さ
れかつワイヤ電［（１）に所定の張力を与えるブレーキ
ローラ、（４ａ）、（４ｔ））、（４０） はそれぞ
れワイヤ［Ｗ（１）の走行方向を変更させるアイドラで
ある。FIG. 8 is an explanatory diagram showing an example of a conventional wire cut release processing device, in which (1) shows a wire L (3) sent out from a supply bobbin (2), which is directly connected to an electromagnetic brake (3a). Brake rollers (4a), (4t)), and (40) that apply a predetermined tension to the wire wire (1) are idlers that change the running direction of the wire wire (1), respectively.
また、（６）は上部ガイド、（６）は下部ガイド兼給電
ダイスで、それぞれ上部と下部の加工液噴出ノズル（７
）および（８）の内部に配置さｎている。（９）は加工
液を供給するためのポンプ、回はワイヤ電極（１）と被
加工物Ｏｚとの間に放電を起こすためのパルスｉ！［ユ
ニツ１−を示し、ワイヤ電極（１）は上部ガイド（５）
と下部ガイド（６）によって叉持され、被加工物四に対
して所定の方向に位置している。なお、（至）はワイヤ
電極送りローラーである。In addition, (6) is an upper guide, (6) is a lower guide and power feeding die, and the machining fluid jet nozzle (7) is located at the upper and lower parts, respectively.
) and (8). (9) is a pump for supplying machining fluid, and times are pulses i! to cause electric discharge between the wire electrode (1) and the workpiece Oz. [Units 1- is shown, the wire electrode (1) is connected to the upper guide (5)
and a lower guide (6), and is positioned in a predetermined direction with respect to the workpiece 4. Note that (to) is a wire electrode feeding roller.
次にこの作用を説明する。まず、ワイヤ電極（１）に加
工液αＱを噴出しつつワイヤ電極（１）と被加工物Ｕ間
にパルス電圧を加える。しかして、ワイヤ電ｍ （１）
と被加工物（２）との対向した微少間隙では、加工液α
Ｑの気化爆発に伴なう放電時の熱エネルギーによって被
加工物（ロ）を溶融飛散させる。また、対向する微少間
隙を一定に保ち、放電を継続的に行うためのワイヤｉｔ
Ｗ （１）と被加工物（２）との相対移動は、図示し
ないＸ−Ｙクロステーブルを数値制御する方法により通
常行われている。このようにして放電を繰り返し、Ｘ−
Ｙテーブルを制御することにより加工溝が連続的に形成
され、任意の形状に被加工物叫を加工するようになって
いる。Next, this effect will be explained. First, a pulse voltage is applied between the wire electrode (1) and the workpiece U while spouting the machining liquid αQ onto the wire electrode (1). However, wire electric m (1)
In the micro gap facing the workpiece (2), the machining fluid α
The workpiece (b) is melted and scattered by the thermal energy during the discharge accompanying the vaporization explosion of Q. In addition, wire IT is used to keep the opposing micro-gap constant and to perform discharge continuously.
Relative movement between W (1) and the workpiece (2) is usually performed by numerically controlling an X-Y cross table (not shown). In this way, the discharge is repeated, and
By controlling the Y table, machining grooves are continuously formed, and the workpiece can be machined into any desired shape.
上記のような場合、一般的に加工液噴出ノズル（７）
、 （８）から噴出する加工液は、第５図に示すように
、加工部に供給される（１０ｋ））と、被加工物（２）
の表面にそって流れる加工液（１０ａ）の２つの流れと
なることが多かった。しかも、加工部に供給される加工
液（１０ｋ））は、ワイヤ電極の後方へ流れ去るため、
その流れによりワイヤ電極が進行方向と逆方向に力を受
け、ワイヤ電極の振動や断線の一要因となるという問題
点があつ１こ、これに対してワイヤ電極後方の剛性を高
めて、振動や断線を防止するために、電極の形状をワイ
ヤ電極の進行方向に伸ばした平角形状ワイヤとし、しか
も側方面には絶縁処理（１５＆）、（１５ｔ））を施す
ξとにより、側方面への放電を発生させる仁となく、高
性能な加工ができるワイヤ電極を提供してきた。In the above case, generally the machining fluid jet nozzle (7)
, (8) is supplied to the machining section (10k), as shown in FIG.
There were often two streams of machining liquid (10a) flowing along the surface. Moreover, since the machining fluid (10k) supplied to the machining section flows away behind the wire electrode,
There is a problem in that the wire electrode is subjected to force in the opposite direction to the direction of movement due to the flow, which can cause vibration or disconnection of the wire electrode. In order to prevent wire breakage, the shape of the electrode is a rectangular wire extending in the direction of movement of the wire electrode, and the side surfaces are insulated (15&), (15t)) to prevent discharge to the side surface. We have provided wire electrodes that can be processed with high performance without the nicks that occur.
従来のワイヤ電極は、加工液と加工屑がワイヤ電極後方
に流出しに（く、加工間隙に加工屑が異常滞留してワイ
ヤｔａと被加工物の疑似短絡や即放電が多発し、加工を
源の電力供給能力側には余力がありながら高速加工が采
現できなかりた。With conventional wire electrodes, machining fluid and machining debris do not flow out behind the wire electrode, and machining debris abnormally accumulates in the machining gap, resulting in frequent pseudo-short circuits and instant discharges between the wire ta and the workpiece, resulting in machining problems. Although there was surplus power in the power source, high-speed machining was not possible.
本発明は上記課題を解決するためになされＴこもので、
ワイヤ［Ｗと被加工物との間隙に発生ずる加工屑を効率
的に排出できるワイヤ＊ｉを得ることを目的とする。The present invention has been made to solve the above problems, and includes:
The purpose of this invention is to obtain a wire *i that can efficiently discharge machining waste generated in the gap between the wire and the workpiece.
本発明に係るワイヤカット放電加工用成極は、その素材
として気泡状の２！！隙を有する発泡金属を用いたもの
である。The polarization for wire cut electric discharge machining according to the present invention uses a bubble-like 2! as its material. ! It uses foamed metal with gaps.
本発明におけるワイヤカット放電加工用電極は、その素
材として気泡状の空隙を有する発泡金属を用いたので、
加工間隙に滞留する加工屑を、貫通している空隙の場合
は加工液と共にワイヤ電極後方に流出し、貫通していな
い場合は空隙の内部に滞在させてワイヤｔＷと共に送り
出す。Since the wire-cut electric discharge machining electrode of the present invention uses a foamed metal having bubble-like voids as its material,
Machining debris remaining in the machining gap will flow out behind the wire electrode along with the machining liquid if the gap is penetrating, and if it is not penetrating, it will stay inside the gap and be sent out together with the wire tW.
〔発明の実施例）
第１図は、本発明の実施例による発泡金ｇＩｈ製ワイヤ
Ｔｉｔ ｌ？＠ （１４を示す説明図である。また、第
２図は、このワイヤ電極の作用を説明する図である。放
電間隙にて発生する加工屑（至）が、ワイヤ電極後方に
吹抜けようとする加工液（１０ｂ）と共にワイヤｍＷに
形成さ１．た貫通穴（１帆）を通って効率良く排出され
たり、未貫通穴に滞在した状慇で電極と共に放電極間へ
送り出されるため、放電間隙が清浄に保たれて短絡・即
攻電が城少し、その結果として正常放電の周波数が高く
なり高速加工が可能となる。[Embodiment of the Invention] FIG. 1 shows a wire made of foamed gold gIh according to an embodiment of the present invention. @ (14 is an explanatory diagram. Fig. 2 is an explanatory diagram showing the action of this wire electrode. Machining debris generated in the discharge gap tries to blow through to the rear of the wire electrode. It is efficiently discharged together with the machining fluid (10b) through the through hole (1 sail) formed in the wire mW, or it is sent out between the discharge electrodes together with the electrodes while staying in the unpierced hole. is kept clean, preventing short circuits and immediate electrical attacks, and as a result, the frequency of normal discharge increases, making high-speed machining possible.
本発明は以上説明したように、ワイヤｔＷに空隙が存在
するため、放電極間にて発生する加工屑の効率的排出に
よる高速加工が実現できろ。As explained above, in the present invention, since there is a gap in the wire tW, high-speed machining can be realized by efficiently discharging machining debris generated between the discharge electrodes.
ｔｊｇ１図は、本発明の一実施例による発泡金属製ワイ
ヤ電極を示す説明図、第２図はそのワイヤ電［を使用し
た場合の作用を示す説明図、第８図は従来のワイヤカッ
ト放電加工装置の一例を示す説明図、第４図は加工極間
にて加工液がワイヤ電極に及ぼす作用を説明する断面図
である。
図において、（１）はワイヤ！！極、（５）（６）は上
下部ガイド、（７）（８）は上下部加工液噴出ノズル、
α４は発泡金属製ワイヤｔＦＭである。
なお、各図中の同一符号は同一または相当部分を示す。Figure 1 is an explanatory diagram showing a foamed metal wire electrode according to an embodiment of the present invention, Figure 2 is an explanatory diagram showing the effect when using the wire electrode, and Figure 8 is an explanatory diagram showing a conventional wire cut electric discharge machining. FIG. 4 is an explanatory view showing an example of the apparatus, and is a cross-sectional view illustrating the effect of the machining fluid on the wire electrode between the machining machining electrodes. In the figure, (1) is a wire! ! poles, (5) and (6) are upper and lower guides, (7 and 8) are upper and lower machining liquid jet nozzles,
α4 is a foamed metal wire tFM. Note that the same reference numerals in each figure indicate the same or corresponding parts.
Claims (1)
給しながら加工電源により電圧を印加して放電加工を行
うワイヤカット放電加工装置に使用されるワイヤ電磁に
おいて、上記ワイヤ電極の素材として気泡状の空隙を有
する発泡金属を用いたことを特徴とするワイヤカット放
電加工用電極。In the wire electromagnetic machine used in wire cut electrical discharge machining equipment, which performs electrical discharge machining by applying voltage from a machining power source while supplying machining liquid to a micro gap facing the workpiece, air bubbles are used as the material for the wire electrode. An electrode for wire-cut electrical discharge machining, characterized in that it uses a foamed metal having voids in the shape of a shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15427088A JPH01321125A (en) | 1988-06-22 | 1988-06-22 | Electrode for wire-cut electric discharge machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15427088A JPH01321125A (en) | 1988-06-22 | 1988-06-22 | Electrode for wire-cut electric discharge machining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01321125A true JPH01321125A (en) | 1989-12-27 |
Family
ID=15580496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15427088A Pending JPH01321125A (en) | 1988-06-22 | 1988-06-22 | Electrode for wire-cut electric discharge machining |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01321125A (en) |
-
1988
- 1988-06-22 JP JP15427088A patent/JPH01321125A/en active Pending
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