WO2005018872A1 - 放電加工用ncプログラム作成装置 - Google Patents
放電加工用ncプログラム作成装置 Download PDFInfo
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- WO2005018872A1 WO2005018872A1 PCT/JP2004/012111 JP2004012111W WO2005018872A1 WO 2005018872 A1 WO2005018872 A1 WO 2005018872A1 JP 2004012111 W JP2004012111 W JP 2004012111W WO 2005018872 A1 WO2005018872 A1 WO 2005018872A1
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- WIPO (PCT)
- Prior art keywords
- program
- machining
- electrode
- shape
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Program-control systems
- G05B19/02—Program-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of program data in numerical form
- G05B19/4097—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of program data in numerical form characterised by using design data to control NC machines, e.g. CAD/CAM
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/36—Nc in input of data, input key till input tape
- G05B2219/36201—Hole machining
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/45—Nc applications
- G05B2219/45221—Edm, electrical discharge machining, electroerosion, ecm, chemical
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Definitions
- the present invention relates to an NC program creation device for discharging power for machining odd-shaped holes having different shapes or sizes of a hole entrance and an exit. Kyoto technology
- Patent Document 1 discloses an electric discharge machining apparatus that uses a rotating simple-shaped electrode to divide a processing area of a workpiece into multiple layers at a predetermined processing depth in a processing direction and perform multilayer scanning processing. Have been.
- Patent Document 1 JP 08-300223 A
- the conventional electric discharge machining apparatus that realizes multilayer scanning with the simple shape electrode described above assumes die machining, and creates shape data by general-purpose CAD. For this reason, the irregular shaped small hole using the simple shape electrode adopted in the part processing has a simple patterned shape, but when machining the irregular shaped small hole using the above-mentioned conventional technology, In other words, the shape data must be created using general-purpose CAD, which makes the work difficult.
- the scan mask in the mold processing usually has a processing area 100 times or more larger than the electrode area of the simple shape, the feed amount in the XY direction is reduced little by little for each layer several times. Since it is necessary to cut along the changed offset path,
- the present invention has been made to solve the above-described problems, and the shape data can be easily defined by defining a machining shape on a CAM (computer aided manufacturing) of an electric discharge machining device without using a general-purpose CAD. It is an object of the present invention to obtain an NC program creation device for a discharge power generator capable of creating a program.
- the present invention provides an NC program for generating and outputting an NC program for electric discharge machining for forming an irregular small hole using a rotating simple-shaped electrode.
- a shape input unit for inputting shape information including the dimensions of the irregular shaped hole and the inclination angle of the workpiece, and machining information including the electrode diameter for multilayer scanning, 1 scanning pitch, and discharge gap.
- a scan processing information input unit for inputting, a figure creation display unit for obtaining and displaying contours and electrode paths of the odd-shaped fine holes based on information input to the shape input unit and the scan information input unit;
- An NC program creation unit for creating an NC program based on the obtained electrode path is provided.
- the NC program creation device for electric discharge machining is provided with a shape input section, a scan machining information input section, and a figure creation display section, so that it can be used on a CAM of the electric discharge machining apparatus without using general-purpose CAD.
- the ability to easily create shape data by defining the machining shape can be achieved.
- FIG. 1 is a diagram showing a configuration example of an electric discharge machine including an electric discharge machining NC program creating device.
- FIG. 2 is a view showing an example of a screen for creating an NC program for a variant shaped hole (diffuser hole).
- FIG. 3 is a diagram showing an input tag for inputting a discharge condition and the like.
- FIG. 4 is an image diagram for explaining a straight hole drilling method.
- FIG. 5 is an image diagram for explaining a scanning method.
- FIG. 6 is a flowchart showing processing up to updating the display of the shape display area.
- FIG. 7 is a diagram showing a display example at the time of rough machining.
- FIG. 8 is a diagram showing a display example in a case where there are inputs of rough power, straight processing, and finishing power.
- FIG. 9 is a flowchart showing a procedure for creating an NC program.
- FIG. 10 is a state diagram in the case where the thickness of a workpiece changes.
- FIG. 11 is a diagram showing a relationship between a main program 101 and an NC program 100.
- FIG. 12 is a flowchart for creating an NC program in which an interval pitch is changed according to a sheet thickness.
- FIG. 13 is a state diagram in the case where the thickness of the object to be processed changes.
- FIG. 14 is a flowchart for creating an NC program in which the number of scanning steps is changed according to the sheet thickness.
- NC program creation device for EDM (NC program creation device)
- Figure 1 shows an example of the configuration of an electric discharge machine that includes an NC program creation device for electric discharge machining.
- the electric discharge machine shown in Fig. 1 is an electric discharge machining NC program generator 1, which generates an electric discharge machining NC program in electric discharge machining, an electric discharge machine 2, a power supply 3, and a discharge calorie NC program generator 1.
- a numerical control device 4 for driving and controlling the electric discharge machining device 2 according to the NC program output from the controller 3 and a work tank 5 for placing a workpiece 6 immersed in a machining fluid 7 are provided.
- Fig. 2 shows an NC program for machining an irregular shaped thin hole (diffuser hole) in which the shape or size of the hole entrance and the exit are different by the NC program creation device 1 for the discharge force purifier according to the present invention. It is an example of a screen displayed when performing.
- an input tag 10 for inputting electric discharge machining conditions and the like includes a D / H shape input tag 11 for inputting a dimension of the shape of the odd-shaped thin hole, and a rough tag for scan machining. It has an additional information input tag 12 for inputting processing information, a straight hole input tag 13 for inputting straight hole processing information, and a finishing information input tag 14 for inputting finishing information for scanning.
- a shape display area 15 for displaying a processed shape input via the shape input tag 11 is arranged beside the input tag 10.
- the shape display area 15 includes a front view display area 15a for displaying a front view of the processed shape, a plan view display area 15b for displaying a plan view, and a side view display area 15c for displaying a side view.
- 16 is a figure display button for displaying figures.
- the diffuser hole described in the present embodiment has a tapered portion 22a and a straight portion 22b, as shown in FIG.
- Cooling air flows from the bottom to the top (from the negative side in the z direction to the positive side in the z direction). To cool the upper surface of the workpiece.
- This cooling method is widely used for cooling turbine blades.
- the DZH shape input tag 11 shown in Fig. 2 has a W input box 11a for inputting the rectangular length W (mm) of the straight portion 22b corresponding to the cooling air inlet in the X direction.
- H input box l ib for inputting the length H (mm) in the Y direction
- Ul input box 11c and U2 input box for inputting the divergence angle Ul (°) and U2 (°) of the tapered portion 22a in the Y direction.
- an electrode diameter input box 12a for inputting an electrode diameter ⁇ (mm) and a notch pitch (mm) indicating a thickness of one layer at the time of scan processing are input.
- Step pitch input box 12b label number input box 12c for inputting the label number indicating the NC program number to be output
- oscillation radius input box 12d for inputting the electrode oscillation radius (mm) during straight machining
- Input box 12e for inputting the electrode wear rate (%) during straight machining
- the discharge gap input box 12f for entering the discharge gap (mm) during scan rough machining
- Z scan rough machining.
- Each of these input boxes 12a 12k requires the user By inputting the numerical value of, the electrode diameter, the pitch, the roughing information for scan processing, etc. are input.
- a manual check box 13c for inputting whether or not to perform straight hole processing a plurality of sets of X coordinate input boxes 13a, Y coordinate input boxes 13b, and check boxes Box 13d is arranged.
- the X and Y coordinate input boxes 13a and 13b are used to input the XY coordinates of the center of the electrode for straight machining, and the check box 13d is set using the X and Y coordinate input boxes 13a and 13b of the corresponding set. Whether the input coordinates are valid or invalid is input.
- straight hole processing information is input.
- the finishing machining information input tag 14 includes a finishing machining discharge gap input box 14a for inputting a discharge gap (mm) at the time of scanning finishing machining, and a first electrode indicating a correction amount of electrode consumption in the Z direction.
- Correction data input box 14b for inputting correction data (mm), correction data input box 14c for inputting second correction data (mm), and correction data for inputting third correction data (mm)
- a check box 14g for displaying the finishing power is displayed, and the user inputs a required numerical value or the like in each of these input boxes 14a and 14f, whereby the finishing for the scanning power is performed.
- Under Caro E information is input.
- FIG. 4 is an image diagram for explaining straight hole machining
- FIG. 5 is an image diagram for explaining scan machining.
- reference numeral 20 denotes an electrode
- reference numeral 21 denotes a machined hole.
- Fig. 4 (a) to Fig. 4 (b) in the straight hole processing, the discharge force is removed while moving the electrode 20 in the Z-axis direction. It is a processing method. Note that the case where the electrode 20 is moved in the Z direction while swinging in the one-dimensional direction is also defined as straight hole processing.
- scan processing as shown in Fig. 5, the desired processing shape is divided into multiple layers in the Z direction, and the electrodes are scanned in the XY direction while compensating for electrode wear. This is the processing method to be performed.
- the discharge gap is set to 0 for the sake of simplicity.
- the machining time is shorter than scan machining, in which the machining amount is small and machining is likely to be unstable.
- the prepared hole formed by straight processing can secure a constant shape with respect to changes in processing conditions such as variations in the material and shape of the electrode 20 and the workpiece.
- the scan processing the volume to be processed can be reduced by scanning the electrode 20, so that a change in the processed shape with respect to a change in processing conditions can be suppressed.
- new materials and shapes can be processed with high accuracy.
- FIG. 6 is a flowchart showing a processing procedure up to updating the display of the shape display area 15 performed by the controller incorporated in the NC program creating device 1 for discharging power.
- the controller incorporated in the EDM NC program creating device 1 detects that the graphic display button 16 has been pressed, the controller inputs the data into the input boxes 11a to l lh of the D / H shape input tag 11.
- the shape of the diffuser hole is calculated based on the obtained data (step S100).
- the controller determines whether there is any inconsistency in the input shape (step S101) . If data that causes inconsistency in the shape has been input, the controller sounds an alarm (step S120). Ends the processing.
- the case where a contradiction occurs in the shape is, for example, a case where the numerical value input to the U2 input box lid for inputting the spread angle U2 of the taper portion 22a in the Y direction is larger than 90 (°). .
- the controller determines that there is no inconsistency in the shape based on each input data, first, based on the data input to the additional information input tag 12, it obtains an electrode path at the time of scanning. That is, the contour of the shape is represented by the electrode diameter input to the electrode diameter input box 12a. Then, the rough discharge gap input to the rough discharge gap input box 12f is offset toward the center of the XY plane by the calculated length (step S102). Next, the contour obtained by dividing the offset shape in the Z direction by the step pitch input in the step pitch input box 12b is obtained as an electrode path at the time of scan roughing (step S103). The display data of the electrode path at the time of rough machining for performing the screen display is created from the electrode path thus obtained (step S104). Note that the electrode path may be obtained by offsetting the outline of the shape by the radius of the electrode.
- Straight hole processing is valid when the manual check box 13c of the straight hole input tag 13 is checked. That is, the controller determines whether or not the manual check box 13c is checked (step S105), and if checked, executes the processing of steps S106 and S107, and does not check the box. In this case, the procedure moves to step S108. If the manual check box 13c is checked, one or more X-coordinate input boxes 13a and a plurality of X-coordinate input boxes 13a and Y-coordinate input boxes 13b with the check box 13d checked are selected.
- the Y coordinate is obtained (step S106), and the circle of the electrode diameter centered on the obtained electrode center X and Y coordinates and input to the electrode diameter input box 12a of the additional information input tag 12, that is, the straight hole processing position is obtained.
- the data for straight hole machining display to be displayed is created (step S107).
- an electrode path at the time of scan finishing is obtained. That is, the controller determines whether or not the finishing processing display check box 14g of the finishing processing information input tag 14 is checked (step S108). Is performed, and if the check is not checked, the procedure moves to step S112. If the check box 14g for finishing polish is checked, the outline of the shape is changed to the electrode diameter entered in the electrode diameter input box 12a, and the finish entered in the discharge gap input box 14a during finishing. It is offset toward the center of the XY plane by the sum of the machining discharge gap (step S109). Next, an outline obtained by dividing the offset shape in the direction by the step pitch input in the step pitch input box 12b is obtained as an electrode path at the time of scan finishing (step S110).
- step S111 The display data of the electrode path at the time of finishing processing for displaying a screen is created from the electrode path obtained in step S111 (step S111). Finally, the display data of the electrode path at the time of rough polishing obtained in step S104, the data for displaying the straight hole processing obtained at step S107, and the display data of the electrode path at the time of finishing polishing obtained at step SI11. Is displayed in the shape display area 15.
- FIG. 7 and 8 show display examples in the shape display area 15.
- FIG. FIG. 7 is a display example in the case where there is an input for only rough machining, in which the dotted line portion 16 shows the outline of the desired hole shape, and the solid line portion 17 shows the outline of the step S102 and S103 in FIG. This is the electrode path of the rough force determined from the electrode diameter, the rough machining discharge gap, and the pitch.
- FIG. 8 is a display example in the case where there is an input for roughing, straightening, and finishing, in which a dotted line portion 16 shows a contour of a desired hole shape, and an inner solid line portion 17 shows an electrode path of the roughing. And the solid line on the outside. 19 As shown in steps S109 and S110 in FIG.
- the straight hole machining display as shown by the solid line 18, 1) the outer shape of the electrode centered on the X and Y coordinates of the center of one or more electrodes input to one or more X coordinate input boxes 13a and 13b Is displayed.
- the force discharge gap in which the user inputs the discharge gap may be automatically calculated from the Kaget condition. Further, a force-specific value may be set in which the step pitch of the rough processing and the step pitch of the finishing processing are set to the same value.
- the NC program generation device 1 displays an output file dialog (not shown). After that, when the file name is input by the user, the NC program generating device 1 creates a series of NC programs 100 for executing the roughing and the finishing of the straight machining and the scanning force, and creates the designated file. save.
- FIG. 9 shows a procedure for creating an NC program performed by the NC program generation device 1.
- the controller of the NC program generator 1 operates as follows.
- Step S200 The X and Y coordinates of the electrode center input to the Y coordinate input box 13b are acquired (Step S200), and are expanded into an NC program using the acquired electrode center X and Y coordinates (Step S201).
- the X and Y coordinates of the contour end point at the time of scan roughening are obtained based on the electrode path at the time of rough scanning, which was obtained at the time of displaying the shape (step S202). Since the line connecting the contour end points becomes the electrode path, an NC program is created in which the electrode connects the contour end points and moves on the locus (step S203).
- the Z coordinate is described by substituting the step pitch value input in the step pitch input box 12b into a variable, and using the substituted variable as a relative value movement command. Also, since the XY coordinate and Z relative value coordinate do not change depending on the layer in the straight processing part, the number of layers is substituted for a variable, and the operation of one layer is repeated for the number of layers.
- An NC program for scan finishing is created in the same manner. That is, the X and Y coordinates of the end point of the contour at the time of the scan finish are obtained based on the electrode path at the time of the scan finish obtained at the time of displaying the shape (step S204). Then, an NC program is created such that the electrodes move on the trajectory connecting the contour end points (step S205).
- correction data input boxes 12g—12i for the electrode wear correction amount during rough machining and the correction data input boxes 14b—14d for the electrode wear correction amount during finish machining Data, processing condition input box for rough processing, processing condition input for roughing input in box 13 ⁇ 4, processing condition input box for finishing processing, processing condition for finishing processing input in box 14e, label
- the comment entered in the comment input box 14f a rotation command, machining input command, machining off command, positioning command, etc. are added (step S206), and the The file (step S207).
- the numerical controller 4 includes an NC program output from the NC program generator 1 in advance.
- a main program 101 for controlling a machining position, a machining posture, and a machining hole depth d for the number of machining of 100 grams is stored.
- ⁇ , ⁇ , and ⁇ denote machining positions
- C denotes a rotation angle about the ⁇ axis
- ⁇ denotes a rotation angle about the ⁇ axis.
- These diffuser hole information can be extracted from CAD drawing data representing the entire part.
- the machining hole depth d is changed when the machining hole depth changes due to the difference in machining position and machining posture. This is to respond.
- FIG. 11 shows the relationship between the main program 101 and the NC program 100.
- a start button (not shown) of the numerical controller 4 is pressed, the machining position and the machining posture are determined according to the main program 101, and the NC program 100 is called.
- the NC program 100 is operated, straight hole drilling is performed up to the processing hole depth + lmm set in the main program 101.
- a numerical value is entered in the rocking radius input box 12d, straight hole drilling is performed while performing rocking processing using the entered numerical value as the rocking radius.
- the rough machining of the scan process is performed while performing the electrode wear compensation in the Z direction by the amount of the rough machining wear correction data input to the correction data input box 12 g of the electrode wear compensation amount at the time of rough machining.
- the scan finishing is performed while performing the electrode wear correction in the Z direction by the amount of the finish wear correction data input to the correction data input box 14b of the electrode wear correction amount at the time of finishing.
- the numerical control device 4 is provided with a function that, when the correction data is set, the machining is performed while the electrode is automatically fed in the Z direction.
- the processing of the length hi of the straight portion shown in FIG. 10 is adjusted according to the processing hole depth d set in the main program 101.
- the straight portion length hi can be obtained from the input value of the machining hole depth d—D1 input box l lh.
- the depth D1 in the Z direction of the tapered portion 22a is input to the D1 input box lh.
- the step pitch of the electrode path of the straight portion is set to the default step pitch (standard Value) P
- the plate thickness d is small (d ⁇ d s)
- the thickness of the straight portion is reduced
- the plate thickness d is large (d> ds)
- the pitch is described as being increased. That is, since the Z coordinate is described by a relative movement command using a variable by substituting the input value of the step pitch input box 12b indicating the layer thickness into a variable, this variable is calculated only for the straight machining part.
- write in the NC program to rewrite In the figure, there is no problem with the shape of the electrode path at the hole exit, since there is no place where the force protrudes from the shape and there is no workpiece.
- FIG. 12 shows a procedure for creating an NC program in which the pitch is changed according to the plate thickness d.
- a case where the plate thickness d is larger than ds (d> ds) as shown in FIG. 10A will be described as an example.
- the plate thickness in the case of (a) in Fig. 10 is d and the depth of the tapered portion in the Z direction is D1
- the straight IJ pitch P1 of the straight portion is calculated using the above ratio W and the default pitch P.
- the main program 101 is stored in the numerical controller 4 in advance.
- the main program 101 may be set at the same time as when the NC program 100 is output, or may be set later. You can. In short, the main program 101 may be set at any time before the start of machining.
- the force which absorbs the variation of the plate thickness by the length hi of the straight portion is not limited to the length hi of the straight portion. The thickness variation may be absorbed at the portion.
- the NC program 100 is written to rewrite the step pitch variable when machining the tapered portion.
- the hole shape of a predetermined pattern is displayed, Since the dimensions of the part are input, the number of inputs by the user is reduced, and the workability of inputting shape data is improved.
- the desired hole shape is offset inward by the dimension of the electrode radius plus the discharge gap, and the shape obtained by dividing the depth direction by the desired layer thickness is used as the electrode path during scanning. Thus, there is an effect that an appropriate electrode path can be easily obtained with a short calculation time.
- a program for rough machining and a program for finishing force with electrodes of the same shape are output, the time for electrode replacement and the positioning time for electrode replacement are eliminated, shortening the machining time. effective.
- a program for straight machining for moving the electrode vertically in the direction of the curling and a program for scanning force are output in combination.
- the machining time is shorter than that of the machining alone, and the volume of the electrode can be reduced by scanning the electrode.
- a processing program capable of processing a shape with high accuracy can be created.
- a straight machining definition input unit for inputting a definition related to straight machining and a machining definition input unit for scanning machining are provided, there is an effect that necessary input can be easily performed.
- the center coordinates of the electrode are input as the processing position of the straight processing portion, the input is easily understood.
- the straight processed portion is displayed, there is an effect of preventing an input error.
- the electrode path at the time of the scanning process is displayed, if the digit such as the step pitch or the discharge gap is incorrect, the wrong electrode path is displayed, which has the effect of preventing input errors. .
- the cut pitch of the straight portion is constant
- the number of layers in the straight section (the number of scanning steps) is changed according to the sheet thickness.
- FIG. 10 (b) based on the number of layers when the machining hole depth (plate thickness) d is a predetermined value ds, as shown in FIG. 13 (e),
- d ⁇ ds the number of layers in the straight part is reduced
- Fig. 13 (d) when the plate thickness d is large (d> ds)
- It is described in the NC program 100 so as to add the number of layers in each section.
- a program in which the set layer number is automatically changed in accordance with the hole depth is output.
- the same NC program can be used to machine the work piece diagonally and the machining hole depth changes even if the machining hole depth changes, so less memory is required and an efficient program that does not require a program to be created for each machining depth Creation can be realized.
- the NC program creating device 1 is connected online with the numerical control device 4 and is arranged outside the numerical control device 4.
- the NC program creation device 1 may be built in the numerical control device 4, or may be realized offline by a separate personal computer or the like.
- the functions of the NC program creation device 1 may be provided in a part of the CAD / CAM device.
- the NC program generating apparatus for discharging power is capable of generating an NC program for discharging a deformed narrow hole having a different shape or size between the hole entrance and the exit. Useful.
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Abstract
Description
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Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003-299656 | 2003-08-25 | ||
| JP2003299656A JP2006198683A (ja) | 2003-08-25 | 2003-08-25 | 放電加工用ncプログラム作成装置 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005018872A1 true WO2005018872A1 (ja) | 2005-03-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2004/012111 Ceased WO2005018872A1 (ja) | 2003-08-25 | 2004-08-24 | 放電加工用ncプログラム作成装置 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2006198683A (ja) |
| WO (1) | WO2005018872A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102156442A (zh) * | 2011-03-01 | 2011-08-17 | 上海维宏电子科技有限公司 | 三轴机床数控系统的开槽加工方法 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08300223A (ja) * | 1995-05-10 | 1996-11-19 | Mitsubishi Electric Corp | 放電加工装置 |
| JPH09192936A (ja) * | 1996-01-09 | 1997-07-29 | Sodick Co Ltd | 放電加工方法及びその装置 |
-
2003
- 2003-08-25 JP JP2003299656A patent/JP2006198683A/ja active Pending
-
2004
- 2004-08-24 WO PCT/JP2004/012111 patent/WO2005018872A1/ja not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08300223A (ja) * | 1995-05-10 | 1996-11-19 | Mitsubishi Electric Corp | 放電加工装置 |
| JPH09192936A (ja) * | 1996-01-09 | 1997-07-29 | Sodick Co Ltd | 放電加工方法及びその装置 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102156442A (zh) * | 2011-03-01 | 2011-08-17 | 上海维宏电子科技有限公司 | 三轴机床数控系统的开槽加工方法 |
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| Publication number | Publication date |
|---|---|
| JP2006198683A (ja) | 2006-08-03 |
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