JPS646177Y2 - - Google Patents
Info
- Publication number
- JPS646177Y2 JPS646177Y2 JP1980186933U JP18693380U JPS646177Y2 JP S646177 Y2 JPS646177 Y2 JP S646177Y2 JP 1980186933 U JP1980186933 U JP 1980186933U JP 18693380 U JP18693380 U JP 18693380U JP S646177 Y2 JPS646177 Y2 JP S646177Y2
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- machining
- vibration
- mounting surface
- surface plate
- 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
Links
- 238000009760 electrical discharge machining Methods 0.000 claims description 9
- 238000003754 machining Methods 0.000 description 46
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000005284 excitation Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 239000003350 kerosene Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 102220259718 rs34120878 Human genes 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Description
【考案の詳細な説明】
この考案は放電による加工装置、更に詳しく言
えば比較的大型の加工用棒電極、総型電極、複数
本の加工用電極と被加工物とを対向させ、両者間
に電圧パルスを印加して間歇的な放電を発生させ
て加工を行なう放電による加工装置等に用いて便
利な複数の振動子を取付けたことを特徴とする放
電加工用電極取付定盤に関するものである。[Detailed explanation of the invention] This invention is a machining device using electric discharge, more specifically, a relatively large machining rod electrode, a full-form electrode, multiple machining electrodes, and a workpiece are placed facing each other, and there is a gap between the two. This invention relates to an electrode mounting surface plate for electrical discharge machining, which is characterized by having a plurality of vibrators attached thereto, which is convenient for use in electrical discharge machining equipment that performs machining by applying voltage pulses and generating intermittent electrical discharges. .
一般の放電を利用した加工に於て、非常に狭い
幅の溝や、直径0.5mm以下の小孔を加工する場合
には、加工屑の除去がうまく行かないために加工
能率が低下するものであるが、この問題を解決す
るために従来、加工用電極（又は被加工物）に振
動を与えながら放電加工する技術が試みられてい
る。 In machining using general electrical discharge, when machining very narrow grooves or small holes with a diameter of 0.5 mm or less, machining efficiency decreases because machining debris cannot be removed properly. However, in order to solve this problem, techniques have been attempted in the past in which electrical discharge machining is performed while applying vibration to the machining electrode (or workpiece).
第６図に示される装置は、この種の電極振動式
放電加工装置の実験機の一例を図式的に示すもの
であつて、この装置で振動発生源として超音波発
振器を用い、振動拡大用ホーンの先端に電極Ｅを
取付け、被加工物Ｗに放電加工を施すものであ
る。 The device shown in FIG. 6 schematically shows an example of an experimental machine of this type of electrode vibration type electric discharge machining device, and uses an ultrasonic oscillator as a vibration source and a vibration amplifying horn. An electrode E is attached to the tip of the workpiece W to be subjected to electric discharge machining.
従来のこの種の装置に於ては、磁歪又は電歪等
の振動子及びこの振動子に密着して設けた振動拡
大用ホーンからなる超音波振動器を設け、放電加
工用電極の着脱取付チヤツクを前記ホーン先端部
に取付ける構成か、或いは第６図に見られるよう
に電極を直接ホーン先端にろう付け等により固着
する構成が取られており、このため加工用電極の
材質、寸法、形状がほぼ一定且つ一種のものに限
定されるのが普通である。 Conventional equipment of this kind is equipped with an ultrasonic vibrator consisting of a magnetostrictive or electrostrictive vibrator and a vibration amplifying horn installed in close contact with the vibrator, and a mounting chuck for attaching and detaching the electrical discharge machining electrode. Either the electrode is attached to the tip of the horn, or the electrode is fixed directly to the tip of the horn by brazing or the like as shown in Fig. 6. Therefore, the material, size and shape of the machining electrode are Usually, it is almost constant and limited to one type.
即ち、斯種装置の超音波振動は、ホーン尖端に
取付けられる物の材質、寸法、形状、重量等が一
定であることが望ましく、これらが変化すると共
振周波数が変化する如く振動共振点にずれを生じ
振動の入出力効果が著しく低減するだけでなく、
発熱、損壊等の危険も大きいものである。 In other words, it is desirable for the ultrasonic vibration of this type of device to have the same material, size, shape, weight, etc. of the object attached to the tip of the horn, and if these change, the resonance frequency will change, causing a shift in the vibration resonance point. Not only is the input/output effect of generated vibrations significantly reduced, but
There is also a great risk of heat generation, damage, etc.
しかるに、放電加工に於ては、電極低消耗又は
無消耗の加工条件もあるが、一般的に加工面粗さ
が数10μRmax以上の粗い領域で、電極消耗は避
け難いものであり、又加工抵抗（切削負荷）が小
さいと言つても、加工面積によつて相異すること
は事実であり、又格別の専用機でない以上、加工
用電極としては寸法、形状、重量等に機械に応じ
た制限があるにしても、各種の材質、寸法形状、
及び重量のものが用いられるので、電極に放電加
工上に有効な超音波振動を与えることができにく
いだけでなく、１つの加工用電極による加工中に
於ても電極の寸法形状、重量、及び加工抵抗等が
順次変化して行くだけでなく、温度も変化する所
からかかる場合には超音波振動励振電源の発振周
波数を上記変化に応じて調整変更することが必要
となるが、そのような発振周波数の自動制御に
は、何等かの方法により振動子の振動速度に比例
する電圧を検出する等のことが必要で、構成が複
雑で高価となるだけでなく、振動周波数の変化に
より振動状態が変化して放電加工性能に不定の予
期しない変化を来たすことがある。 However, in electric discharge machining, although there are machining conditions with low or no electrode consumption, generally in rough areas where the machined surface roughness is several tens of μRmax or more, electrode consumption is difficult to avoid, and machining resistance is high. Even if the (cutting load) is small, it is true that it differs depending on the machining area, and since it is not a special purpose machine, there are restrictions on the size, shape, weight, etc. of the machining electrode depending on the machine. Even if there is, there are various materials, dimensions, shapes,
Not only is it difficult to apply ultrasonic vibrations to the electrode that are effective for electrical discharge machining, but also the size, shape, weight, and In cases where not only machining resistance etc. change sequentially but also temperature changes, it is necessary to adjust and change the oscillation frequency of the ultrasonic vibration excitation power source according to the above changes. Automatic control of the oscillation frequency requires some method to detect a voltage proportional to the vibration speed of the vibrator, which not only makes the configuration complex and expensive, but also changes the vibration state due to changes in the vibration frequency. may change, causing undefined and unexpected changes in electrical discharge machining performance.
又、上記種々の変化によつても尚振動速度、出
力が変化しないようにするためには上記振動励振
電源を定電流特性の電源としなければならない
が、該定電流特性電源は電力効率が悪く、高電力
を扱う場合には電力損失が著しく、トランジスタ
或いはシリコン制御整流素子等の能動素子を余裕
をもつて設けなければならないため経済的効率が
非常に悪いだけでなく、ある程度以上の負荷の変
動があれば、著しいインピーダンスのミスマツチ
ングよつて結局負荷には機械的エネルギが伝達さ
れないことになるから、加工の進行により電極消
耗や加工面積の変化、及び電極・被加工物電極の
嵌合状態の変化によつて振動負荷が順次変化する
放電加工に於ては、上記振動励振電源を仮に定電
流特性のものとしても、放電加工性能上の充分な
効果は期待し得ないのである。 In addition, in order to prevent the vibration speed and output from changing even with the various changes described above, the vibration excitation power source must be a power source with constant current characteristics, but such power sources with constant current characteristics have poor power efficiency. When dealing with high power, power loss is significant, and active elements such as transistors or silicon-controlled rectifiers must be provided with sufficient margin, which is not only extremely inefficient economically, but also reduces load fluctuations beyond a certain level. If this happens, mechanical energy will not be transmitted to the load due to significant impedance mismatching, so as machining progresses, the electrode will wear out, the machining area will change, and the fitting state of the electrode and workpiece electrode will change. In electric discharge machining in which the vibration load changes sequentially due to the vibration load, even if the vibration excitation power source has constant current characteristics, a sufficient effect on electric discharge machining performance cannot be expected.
この考案の第一の目的は比較的大型の複雑な深
いスリツト加工の総型電極や同時に１本又は複数
本の細い深孔加工用の棒状電極を用いる放電加工
装置に特に適し、この放電加工の能率を高めるた
めに加工用電極を取付ける電極取付定盤に複数個
の振動子を設けた電極取付定盤を提供することで
ある。 The first purpose of this invention is to make it particularly suitable for electric discharge machining equipment that uses a relatively large, complex, full-type electrode for machining deep slits, or one or more rod-shaped electrodes for simultaneously machining thin deep holes. It is an object of the present invention to provide an electrode mounting surface plate on which a processing electrode is mounted, in which a plurality of vibrators are provided on the electrode mounting surface plate in order to improve efficiency.
この考案の別の目的は加工の進行やその他の何
等かの原因によつて振動負荷が変化した際に、そ
の変化状態に応じて振動子の取付定盤に対する当
接状態を制御できるようにした新規な放電による
加工用電極の取付定盤を提供することである。 Another purpose of this invention is to make it possible to control the state of contact of the vibrator with the mounting surface plate according to the changing state of the vibration load when the vibration load changes due to the progress of machining or some other cause. An object of the present invention is to provide a mounting surface plate for a machining electrode using a novel electrical discharge.
次に第１図についてこの考案の一実施例を説明
する。基台ベツド１上には加工テーブル２が配置
され、の加工テーブル２上に被加工物３が置かれ
る。この加工テーブル２はモータM1，M2によつ
てｘ軸及びｙ軸方向の運動、つまり基台ベツド１
上のひとつの平面内の運動が制御される。 Next, an embodiment of this invention will be described with reference to FIG. A processing table 2 is arranged on the base bed 1, and a workpiece 3 is placed on the processing table 2. This processing table 2 is moved in the x-axis and y-axis directions by motors M 1 and M 2 , that is, the base bed 1
Movement in one plane above is controlled.
被加工物３に対向して電極取付定盤５に取付け
られて配置される加工用電極の数はこの実施例の
場合は、２本であり、この電極取付、定盤５は図
中矢印のように鉛直の上下方向及び中心軸線の回
りの回転運動、又は微小半径偏心の公転運動可能
なヘツド４に取付けて用いられる。 In this embodiment, the number of machining electrodes mounted on the electrode mounting surface plate 5 facing the workpiece 3 is two. It is used by being attached to a head 4 capable of vertical movement in the vertical direction and rotational movement around the central axis, or revolution movement with a slight radius eccentricity.
しかして、電極取付定盤５には複数本、この実
施例の場合３本の振動子７Ａ，７Ｂ，７Ｃが当接
して支持される例えば超音波振動子のような振動
子であつて、実際はその振動拡大用ホーン７１が
電極取付定盤５に当接支持される。一方振動子７
Ａ，７Ｂ……等は歳差運動制御装置８にも支持さ
れ、歳差運動制御装置８自体は鉛直方向の運動制
御台８２上に配置される水平内運動制御装置８１
上に支持される、つまり歳差運動制御装置８はさ
ｘ，ｙ，z3軸方向に加えて、ｘ，ｙ、各軸周り回
動運動制御が可能なわけである。 Therefore, a plurality of vibrators 7A, 7B, 7C in this embodiment, three vibrators 7A, 7B, 7C, are in contact with and supported on the electrode mounting surface plate 5, such as ultrasonic vibrators, and in reality, The vibration amplifying horn 71 is supported in contact with the electrode mounting surface plate 5. On the other hand, vibrator 7
A, 7B, etc. are also supported by a precession control device 8, and the precession control device 8 itself is a horizontal movement control device 81 disposed on a vertical movement control table 82.
The precession control device 8 supported above is capable of controlling rotational motion around each of the x, y, and axes in addition to the three axes of x, y, and z.
振動子７Ａ，７Ｂ，７Ｃの電極取付定盤５に対
する当接支持状態は例えば第２図ａに例示したも
のがある。即ち、各振動子７Ａ，７Ｂ，７Ｃはこ
の場合互いに直角をなすように支持される。尚、
第２図ｂには２本の振動子７Ａ，７Ｂ，７Ｃの電
極取付定盤５に対する当接支持状態の一例を示す
同様の図である。このような電極取付定盤５に取
付ける複数個の振動子の設置は、何れか１個又は
複数個を同時に作動させて電極６に異なる方向の
振動を与えることができるように意図されたもの
で、複雑な形状の深いスリツト加工等の際に威力
を発揮するものである。即ち、ある一定方向から
の規則的な振動付与によつては加工屑が充分速や
かに除去できない場合等に順次振動する振動子を
変えてその振動位置や方向を変えることによつて
片寄つて停滞した加工屑を移動して排除する等有
効なものであり、又単純な形状の棒状電極でもそ
れを取付けた電極取付定盤の振動方向を振動子の
選択により適宜変えることによつて細深孔加工等
には有用である。 The state in which the vibrators 7A, 7B, and 7C are in contact with and supported by the electrode mounting surface plate 5 is illustrated in FIG. 2a, for example. That is, each vibrator 7A, 7B, 7C is supported at right angles to each other in this case. still,
FIG. 2b is a similar diagram showing an example of the state in which two vibrators 7A, 7B, and 7C are in contact with and supported on the electrode mounting surface plate 5. The installation of a plurality of vibrators to be attached to the electrode mounting surface plate 5 is intended so that one or more vibrators can be operated simultaneously to apply vibrations in different directions to the electrode 6. It is effective when machining deep slits in complex shapes. In other words, if machining debris cannot be removed quickly enough by applying regular vibrations from a certain direction, the vibrating oscillator may be sequentially changed and the vibration position or direction may be changed to cause the workpiece to become stagnant. It is effective in moving and eliminating machining debris, and even with a simple rod-shaped electrode, it is possible to process fine and deep holes by appropriately changing the vibration direction of the electrode mounting surface plate to which it is attached, depending on the selection of the vibrator. It is useful for etc.
第３図はこの考案の別の実施例を示すものであ
つて、この例では２本の振動子７Ｄ，７Ｅは１本
の電極６の取付けられた電極取付定盤５の上面に
前記電極６の軸を対称軸として夫々鉛直方向に当
接支持されている。この場合も、何れか一方又は
両方の振動子の同時作動、或いは更に振動エネル
ギの強弱制御等により電極６に種々な態様の振動
を与えることができる。 FIG. 3 shows another embodiment of this invention, in which two vibrators 7D and 7E are mounted on the upper surface of an electrode mounting surface plate 5 on which one electrode 6 is attached. are vertically abutted and supported with the axis of symmetry as the axis of symmetry. In this case as well, various types of vibration can be applied to the electrode 6 by simultaneously operating one or both of the vibrators, or by controlling the intensity of the vibration energy.
第４図はこの考案の更に別の実施例を示すもの
であつて、この実施例では一般に比較的大きい総
型電極９の取付けられた電極取付定盤５に水平方
向から２本の振動子７Ａ，７Ｂが当接支持され、
又鉛直方向から１本の振動子７Ｄが当接支持され
ている。被加工体３の表面に示した輪郭線９１は
電極９の正面図で複雑なスリツト加工総型電極の
例であり、９２は加工液噴尺孔を示している。こ
こで特に注目すべきことは更に別の振動子７Ｆが
水平に対して傾斜した方向から当接支持されてい
ることである。このように傾斜した振動子７Ｆ
は、単独に又は他の１以上の振動子７Ａ，７Ｂ又
は７Ｄと組合せて作動させることにより、電極９
を各種の方向に微小設定振幅で振動させ、加工さ
れたスリツト内の加工チツプ排除の効果を促進さ
せる効果をもたらすわけである。 FIG. 4 shows yet another embodiment of this invention. In this embodiment, two vibrators 7A are mounted horizontally on an electrode mounting surface plate 5 on which a relatively large overall electrode 9 is mounted. , 7B are abutted and supported,
Also, one vibrator 7D is abutted and supported from the vertical direction. A contour line 91 shown on the surface of the workpiece 3 is a front view of the electrode 9, which is an example of a complicated slit-formed electrode, and 92 indicates a machining fluid injection hole. What should be particularly noted here is that another vibrator 7F is supported in contact with it from a direction inclined with respect to the horizontal. Vibrator 7F tilted like this
The electrode 9 can be operated alone or in combination with one or more other vibrators 7A, 7B or 7D.
This vibrates in various directions with minutely set amplitudes, which has the effect of promoting the removal of machining chips within the machined slit.
以下この考案の実施例を示す。 Examples of this invention will be shown below.
〔実施例 １〕
加工条件：
使用電極 Cu被加工物 炭素鋼S55C
（JIS記号）
加工形状 幅0.3mm 深さ30mm
放電電流の振幅 Ip＝8A
電圧パルスの幅 τon＝38μs
電圧パルスの休止時間 τoff＝60μs
加 工 液 ケロシン
電極取付定盤５を介して電極に与えた振動
出力：10W、振幅：５〜20μ、振動数：32K
Hzの振動子（７Ａ，７Ｃ：第２図ａ）を２個、
定盤に直接ねじ止め固定
一方の振動子を２秒オンして、２秒オフ、他方
の振動子を１秒オンして、２秒オフの作動
結 果
第５図のグラフに示されるように電極取付定盤
に振動子を２個取付けて電極に振動を与えた場
合は加工終了まで106分で電極を取付けた電極
取付定盤に振動を全く与えない場合の414分に
比べて加工能率は約3.9倍に向上した。尚、ち
なみに振動子１個の場合の153分に比較しても
加工能率は約30％向上。[Example 1] Machining conditions: Electrode used Cu Workpiece Carbon steel S55C (JIS symbol) Machining shape Width 0.3 mm Depth 30 mm Amplitude of discharge current Ip = 8 A Width of voltage pulse τon = 38 μs Rest time of voltage pulse τoff = 60μs Processing liquid Vibration applied to the electrode via the kerosene electrode mounting surface plate 5 Output: 10W, amplitude: 5 to 20μ, frequency: 32K Hz Two oscillators (7A, 7C: Fig. 2 a),
Fixed directly to the surface plate with screws One vibrator was turned on for 2 seconds and turned off for 2 seconds, and the other vibrator was turned on for 1 second and turned off for 2 seconds.The results of operation are shown in the graph in Figure 5. When two vibrators are attached to the electrode mounting surface plate and vibration is applied to the electrode, it takes 106 minutes to complete machining, compared to 414 minutes when no vibration is applied to the electrode mounting surface plate with the electrode attached.The machining efficiency is lower. This has improved by approximately 3.9 times. Incidentally, compared to the 153 minutes required for one vibrator, the processing efficiency is improved by approximately 30%.
振動子を固定部に取付固定保持して出力端を
電極取付定盤に当接するようにした所、振動エ
ネルギを半分以下として上記と同等以上の効果
が挙げられた。 By attaching and holding the vibrator to a fixed part so that the output end was in contact with the electrode mounting surface plate, the vibration energy was reduced to less than half, and an effect equal to or better than that described above was obtained.
〔実施例 ２〕
加工条件：
使用電極 Cu幅0.8mm 深さ35mm
被加工物 炭素鋼S55C
放電電流の振幅Ip＝8A
電圧パルスの幅τom＝1.5μs
加 工 液 ケロシン
電極取付定盤を介して電極に与える振動
イ 振動子出力10W、振動数28.6KHzのものを２
個取付けて加工した場合（第２図ａ，７Ａ，７
Ｃ）、２個の振動子のオン・オフは実験例１と
同じ。22分で加工終了。[Example 2] Machining conditions: Electrode used Cu width 0.8 mm Depth 35 mm Workpiece Carbon steel S55C Amplitude of discharge current Ip = 8 A Width of voltage pulse τom = 1.5 μs Machining liquid Electrode via kerosene electrode mounting surface plate Vibration given to
When installed and processed (Fig. 2 a, 7A, 7
C), Turning on and off of the two vibrators is the same as in Experimental Example 1. Processing completed in 22 minutes.
ロ 振動子出力20W、振動数28.6KHzのもの１個
を電極取付定盤の側面に取付けた場合は74分。(b) 74 minutes when one vibrator with an output of 20 W and a frequency of 28.6 KHz is attached to the side of the electrode mounting surface plate.
ハ 振動子出力25W、振動数31.2KHzのもの２個
を鉛直方向に取付けた場合（第３図）は24分。C. If two vibrators with an output of 25W and a frequency of 31.2KHz are installed vertically (Figure 3), it will take 24 minutes.
尚、電極に振動を与えない場合314分もかか
つており、イの場合、正に14倍の能率向上であ
る。 It should be noted that it took 314 minutes without applying vibration to the electrode, and in the case of A, the efficiency was improved by exactly 14 times.
以上に説明したようにこの考案によれば(1)比較
的大型の加工用棒状電極、総型電極、複数本の電
極を電極取付定盤に取付けた場合に、複数の振動
子を電極取付定盤に当接支持させて振動させたと
きに、放電加工に於ける加工チツプの排除、或い
はガス抜きが促進され、放電加工の能率が大幅に
向上する効果がある。 As explained above, according to this invention, (1) when a relatively large rod-shaped electrode for machining, a full-sized electrode, or multiple electrodes are mounted on an electrode mounting surface plate, multiple vibrators can be mounted on the electrode mounting surface; When supported in contact with a disk and vibrated, the removal of machining chips or degassing during electrical discharge machining is promoted, and the efficiency of electrical discharge machining is greatly improved.
更に、又この考案では(2)振動子自体をｘ，ｙ，
z3軸方向運動制御装置上の歳差運動制御に載つて
完全な位置制御ができるように取付けた場合に加
工の進行状態、或いは加工用電極の状態に対応し
て常に最適の位置に於て振動を付与することがで
き、従つて上述した振動付与の効果を更に完全に
できる効果もある。 Furthermore, in this invention, (2) the vibrator itself is
When installed in a way that allows complete position control using precession control on the z3 axial motion control device, the vibration is always at the optimal position depending on the progress of machining or the state of the machining electrode. Therefore, there is an effect that the above-mentioned effect of vibration application can be further completed.
第１図はこの考案の一実施例を示す簡略平面
図、第２図ａ，ｂは振動子取付け状態を示す説明
図、第３図及び第４図はこの考案の別の実施例を
示す簡略側面図、第５図はこの考案の加工能率を
説明するグラフ、第６図は従来の電極振動加工の
原理を示した簡略図である。
４……ヘツド、５……電極取付定盤、６……加
工用電極、７Ａ，７Ｂ，７Ｃ……振動子、８……
歳差運動制御装置。
Fig. 1 is a simplified plan view showing one embodiment of this invention, Figs. 2 a and b are explanatory diagrams showing how the vibrator is attached, and Figs. 3 and 4 are simplified diagrams showing another embodiment of this invention. A side view, FIG. 5 is a graph explaining the machining efficiency of this invention, and FIG. 6 is a simplified diagram showing the principle of conventional electrode vibration machining. 4... Head, 5... Electrode mounting surface plate, 6... Machining electrode, 7A, 7B, 7C... Vibrator, 8...
Precession control device.
Claims (1)
方向の任意の異なる方向から当接支持する複数個
の超音波振動の振動子を設け、この複数個の振動
子の中何れか１個又は複数個を選択して振動させ
ることができるよう構成したことを特徴とする放
電加工用電極取付定盤。 A plurality of ultrasonic vibration oscillators are provided that are abutted and supported from any different directions such as the horizontal direction, the vertical direction, or a direction inclined to the horizontal, and any one or more of the plurality of oscillators are provided. An electrode mounting surface plate for electrical discharge machining, characterized in that it is configured to selectively vibrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980186933U JPS646177Y2 (en) | 1980-12-24 | 1980-12-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980186933U JPS646177Y2 (en) | 1980-12-24 | 1980-12-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57108831U JPS57108831U (en) | 1982-07-05 |
| JPS646177Y2 true JPS646177Y2 (en) | 1989-02-16 |
Family
ID=29989312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1980186933U Expired JPS646177Y2 (en) | 1980-12-24 | 1980-12-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS646177Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5453395A (en) * | 1977-10-05 | 1979-04-26 | Inoue Japax Res Inc | Small hole perforating device |
| JPS5467295A (en) * | 1977-11-08 | 1979-05-30 | Inoue Japax Res Inc | Electrified wire-cutting apparatus |
| JPS5558925A (en) * | 1978-10-25 | 1980-05-02 | Inoue Japax Res Inc | Electrified wire cutter |
-
1980
- 1980-12-24 JP JP1980186933U patent/JPS646177Y2/ja not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5453395A (en) * | 1977-10-05 | 1979-04-26 | Inoue Japax Res Inc | Small hole perforating device |
| JPS5467295A (en) * | 1977-11-08 | 1979-05-30 | Inoue Japax Res Inc | Electrified wire-cutting apparatus |
| JPS5558925A (en) * | 1978-10-25 | 1980-05-02 | Inoue Japax Res Inc | Electrified wire cutter |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57108831U (en) | 1982-07-05 |
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