CN110722230A - Part machining method based on electric spark machining - Google Patents
Part machining method based on electric spark machining Download PDFInfo
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- CN110722230A CN110722230A CN201911035805.9A CN201911035805A CN110722230A CN 110722230 A CN110722230 A CN 110722230A CN 201911035805 A CN201911035805 A CN 201911035805A CN 110722230 A CN110722230 A CN 110722230A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
- B23H1/04—Electrodes specially adapted therefor or their manufacture
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
Abstract
The invention discloses a part processing method based on electric spark processing, which comprises the steps of manufacturing a three-dimensional part geometric model and a complementary three-dimensional electrode geometric model, carrying out discrete slicing based on the three-dimensional part geometric model and the three-dimensional electrode geometric model to obtain a plurality of sheet structures, acquiring contour data of the sheet structures, cutting a first forming substrate and a second forming substrate to obtain a plurality of part substrates and electrode substrates, superposing the part substrates and electrode plates to fit into a basic part and a three-dimensional electrode, and placing the basic part in an inner cavity of the three-dimensional electrode to carry out electric spark discharging. The three-dimensional laminated part and the three-dimensional laminated electrode complementary to the three-dimensional laminated part are prepared according to the cut part outline data and the electrode outline data, the three-dimensional laminated part is matched with the three-dimensional laminated electrode in structure, and the steps and the rough cutting edge on the surface of the part are eliminated through electric spark discharge between the three-dimensional part and the three-dimensional electrode, so that the shape precision and the surface quality of the part prepared through the laminated solid manufacturing process are improved.
Description
Technical Field
The invention relates to the technical field of 3D printing and entity manufacturing, in particular to a part machining method based on electric spark machining.
Background
The laminated entity manufacturing technology is a relatively mature rapid prototyping technology, belongs to a 3D printing technology, and is widely applied to the fields of modeling design, assembly inspection, part manufacturing, mold manufacturing and the like due to low processing cost and high precision of a finished part.
In the traditional laminated entity manufacturing process, after two-dimensional structures are superposed and fitted, a step effect exists between laminated parts, the forming precision of the parts is influenced, and the edges of the two-dimensional structures are rough, so that the surface quality of the machined parts is low.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a part machining method based on electric spark machining, which can overcome the defects of low surface quality and low part forming precision of parts.
One embodiment of the present invention provides a method of machining a part based on electric discharge machining, including the steps of,
s10, manufacturing a three-dimensional part geometric model and a complementary three-dimensional electrode geometric model;
s20, performing discrete slicing based on the three-dimensional part geometric model to obtain a plurality of part sheet structures, acquiring contour data of each part sheet structure, performing discrete slicing based on the three-dimensional electrode geometric model to obtain a plurality of electrode sheet structures, and acquiring contour data of each electrode sheet structure;
s30, arranging a first forming substrate and a second forming substrate, and cutting the first forming substrate and the second forming substrate according to the contour data of the part sheet structure and the contour data of the electrode sheet structure to obtain a plurality of part substrates and electrode substrates;
s40, fitting the superposed part substrate into a basic part, fitting the superposed electrode substrate into a three-dimensional electrode, wherein the overall size of the inner cavity of the three-dimensional electrode is larger than that of the basic part;
and S50, placing the basic part in the inner cavity of the three-dimensional electrode, and electrifying the basic part and the three-dimensional electrode to enable electric spark discharge to be carried out between the basic part and the three-dimensional electrode, so as to obtain the three-dimensional part.
The part machining method based on electric spark machining in the embodiment of the invention at least has the following beneficial effects:
the three-dimensional laminated part and the three-dimensional laminated electrode complementary to the three-dimensional laminated part are prepared according to the part contour data and the electrode contour data after slicing by designing a three-dimensional geometric model and carrying out discrete slicing, so that the three-dimensional laminated part is matched with the three-dimensional laminated electrode in structure, the electric spark discharge between the three-dimensional laminated part and the three-dimensional laminated electrode is facilitated, the steps on the surface of the part and the rough cutting edge are eliminated through the electric spark discharge between the three-dimensional part and the three-dimensional electrode, and the shape precision and the surface quality of the part prepared through the laminated solid manufacturing process are improved.
According to other embodiments of the present invention, in the method for machining a part based on electric discharge machining, the step S10 includes,
s11, designing a three-dimensional part geometric model through three-dimensional computer aided software;
and S12, establishing a three-dimensional electrode geometric model complementary to the three-dimensional part geometric model based on the three-dimensional part geometric model.
According to other embodiments of the method for machining a part based on electrical discharge machining according to the present invention, in step S20, the three-dimensional part geometric model and the three-dimensional electrode geometric model are discretely sliced in a height direction.
According to other embodiments of the present invention, in the method for machining a part based on electric discharge machining, the step S30 includes,
s31, sputtering a tin film on the surface of the first forming substrate;
s32, melting the tin film, and bonding the first forming substrate positioned within the structural outline of the part sheet on the first substrate;
s33, removing the portion of the first molding substrate outside the contour of the part sheet structure.
According to the method for processing a part based on electric discharge machining according to other embodiments of the present invention, in step S33, a scanning cutting is performed by using a laser along a contour position of the first formed substrate according to the profile data of the part sheet, so as to obtain a part substrate.
According to other embodiments of the method for electric discharge machining based part machining, the step S30 further includes,
s34, sputtering a layer of tin film on the surface of the second forming substrate;
s35, melting the tin film, and bonding a second forming substrate outside the structural outline data of the electrode sheet on a second substrate;
and S36, removing the part of the second forming substrate located within the outline of the electrode sheet structure.
According to other embodiments of the method for machining a part based on electrical discharge machining according to the present invention, in step S36, a scanning cutting is performed along a contour position of the second molding substrate using a laser according to the electrode thin sheet contour data to obtain an electrode substrate.
According to the method for processing a part based on electric discharge machining according to other embodiments of the present invention, in step S30, the tin film is melted by scanning the tin film with a laser according to the profile data of the part sheet and the profile data of the electrode sheet.
According to other embodiments of the method for machining a part based on electric discharge machining according to the present invention, in the step S50, the position of the three-dimensional electrode and/or the base part is adjusted such that the base part enters the inner cavity of the three-dimensional electrode and the three-dimensional electrode is aligned with the center of the base part.
According to other embodiments of the method for machining a part based on electric discharge machining according to the present invention, in the step S50, a space between the inner wall surface of the three-dimensional electrode and the outer wall surface of the base part is maintained to be 5 to 10 μm.
Drawings
FIG. 1 is a schematic structural diagram of one embodiment of a geometric model of a three-dimensional part;
FIG. 2 is a geometric model of a three-dimensional part after discrete slicing;
FIG. 3 is a schematic structural diagram of one embodiment of a three-dimensional electrode geometry model;
FIG. 4 is a geometric model of a three-dimensional part after discrete slicing;
FIG. 5 is a schematic view of a first substrate in a part substrate stacking process;
FIG. 6 is a schematic view of the machining of a three-dimensional pole piece and base part;
FIG. 7 is a schematic view of the surface step processing of a three-dimensional part.
Detailed Description
The concept and technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments to fully understand the objects, features and effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention.
In the description of the embodiments of the present invention, if an orientation description is referred to, for example, the orientations or positional relationships indicated by "upper", "lower", "front", "rear", "left", "right", etc. are based on the orientations or positional relationships shown in the drawings, only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the embodiments of the present invention, if a feature is referred to as being "disposed", "fixed", "connected", or "mounted" to another feature, it may be directly disposed, fixed, or connected to the other feature or may be indirectly disposed, fixed, connected, or mounted to the other feature. In the description of the embodiments of the present invention, if "a number" is referred to, it means one or more, if "a plurality" is referred to, it means two or more, if "greater than", "less than" or "more than" is referred to, it is understood that the number is not included, and if "greater than", "lower" or "inner" is referred to, it is understood that the number is included. If reference is made to "first" or "second", this should be understood to distinguish between features and not to indicate or imply relative importance or to implicitly indicate the number of indicated features or to implicitly indicate the precedence of the indicated features.
The part machining method based on electric discharge machining in the embodiment comprises the following steps:
s10, making a complementary geometric model 100 of the three-dimensional part and a geometric model of the three-dimensional electrode 600;
s20, performing discrete slicing based on the three-dimensional part geometric model 100 to obtain a plurality of part sheet structures 110, and acquiring contour data of each part sheet structure 110, performing discrete slicing based on the three-dimensional electrode 600 geometric model to obtain a plurality of electrode sheet structures 210, and acquiring contour data of each electrode sheet structure 210;
s30, providing a first molding substrate 300 and a second molding substrate, and cutting the first molding substrate 300 and the second molding substrate according to the profile data of the part sheet structure 110 and the profile data of the electrode sheet structure 210 to obtain a plurality of part substrates and electrode substrates;
s40, fitting the superposed part substrate into the basic part 500, fitting the superposed electrode substrate into the three-dimensional electrode 600, wherein the overall size of the inner cavity of the three-dimensional electrode 600 is larger than that of the basic part 500;
s50, placing the basic part 500 in the inner cavity of the three-dimensional electrode 600, and introducing a power supply to the basic part 500 and the three-dimensional electrode 600 to enable electric spark discharge to be carried out between the basic part 500 and the three-dimensional electrode 600, so as to obtain the three-dimensional part.
The three-dimensional laminated part and the three-dimensional laminated electrode complementary to the three-dimensional laminated part are prepared according to the part contour data and the electrode contour data after slicing by designing a three-dimensional geometric model and carrying out discrete slicing, so that the three-dimensional laminated part is matched with the three-dimensional laminated electrode in structure, the electric spark discharge between the three-dimensional laminated part and the three-dimensional laminated electrode is facilitated, the steps on the surface of the part and the rough cutting edge are eliminated through the electric spark discharge between the three-dimensional part and the three-dimensional electrode 600, and the shape precision and the surface quality of the part prepared through the laminated solid manufacturing process are improved.
In this embodiment, a three-dimensional prism structure is taken as an example to explain a part machining process, and certainly, parts can be set to other situations according to actual machining requirements. Referring to fig. 1 and 3, the three-dimensional part geometric model 100 in this embodiment is a prism with a trapezoidal cross section, the three-dimensional pole piece geometric model 200 is complementary to the three-dimensional part model, and the three-dimensional pole piece geometric model 200 is provided with an inner cavity, and the size of the inner cavity is larger than that of the three-dimensional part model, so that the three-dimensional part model can be placed in the inner cavity, thereby facilitating subsequent electric discharge machining.
S10 in this embodiment further includes the following steps:
s11, designing a three-dimensional part geometric model 100 through three-dimensional computer aided software;
and S12, establishing a three-dimensional electrode 600 geometric model complementary to the three-dimensional part geometric model 100 based on the three-dimensional part geometric model 100.
In some embodiments, the three-dimensional modeling may be performed by a CAD software system according to the pre-designed three-dimensional part size and the three-dimensional electrode 600 size, so as to ensure the dimensional accuracy of the three-dimensional part and the three-dimensional electrode 600 during subsequent processing.
In step S20, the three-dimensional part geometric model 100 and the three-dimensional electrode 600 geometric model are discretely sliced in the same direction (which may be the height direction of the three-dimensional part model), so as to obtain the plurality of part sheet structures 110 and the plurality of electrode sheet structures 210. It should be noted that in the discrete slicing process, the slice thicknesses and the slicing times of the geometric model 100 of the three-dimensional part and the geometric model of the three-dimensional electrode 600 are kept the same, which is convenient for the structure adaptation and the electric spark machining between the three-dimensional electrode 600 and the three-dimensional part in the later stage; and the part sheet structures 110, the electrode sheet structures 210 and the part sheet structures 110 and the electrode sheet structures 210 are parallel to each other, so that the part sheet structures 110 and the electrode sheet structures 210 can be tightly attached to each other, and the forming precision of the three-dimensional part and the three-dimensional electrode 600 is improved. After the three-dimensional part geometric model 100 is sliced, as shown in fig. 2, and after the three-dimensional pole piece geometric model 200 is sliced, as shown in fig. 4, after the discrete slicing is completed, the contour data of each layer of part sheet structure 110 and each layer of electrode sheet structure 210 are obtained, and a basis is provided for subsequent part and electrode processing.
It should be noted that, in the step S10, the three-dimensional geometric model and the three-dimensional electrode 600 geometric model are not sequentially made, and may be made simultaneously; the discrete slices of the geometric model 100 of the three-dimensional part and the discrete slices of the geometric model of the three-dimensional electrode 600 in the step S20 are not sequentially performed, and may be performed simultaneously.
The step S30 in this embodiment further includes:
s31, sputtering a tin film on the surface of the first forming substrate 300;
s32, melting the tin film, and bonding the first molding substrate 300 located within the profile data of the part sheet structure 110 to the first substrate;
s33, removing the portion of the first molding substrate 300 outside the contour.
The first molding substrate 300 and the second molding substrate may be metal foils made of stainless steel, tungsten, aluminum, nickel, or other metal materials; in this embodiment, the first molded substrate 300 is made of 304 stainless steel foil, and the second molded substrate is made of copper foil.
Specifically, referring to fig. 5 and 6, a tin film is sputtered on the surface of the first molded substrate 300, the first molded substrate 300 on which the tin film is sputtered is placed in a part processing station (left side in fig. 6), the tin film in the contour of the part sheet structure 110 is scanned by using laser emitted by the laser head 400 based on the acquired contour data of the part sheet structure 110, so that the tin film is melted, and then the part of the part sheet structure 110 within the contour is bonded to the first substrate, so that the part sheet structure 110 is fixed to the first substrate; according to the profile data of the part sheet structure 110, scanning and cutting are carried out on the first molded substrate 300 at the set profile by using laser, so that the first molded substrate 300 is divided into two parts based on the set profile, and the part substrate is obtained by removing the part of the first molded substrate 300 outside the profile; the next part wafer structure 110 is then subjected to sputtered tin film, tin film melting, and cutting operations until all of the part wafer structures 110 are processed into part substrates.
The step S30 in this embodiment further includes:
s34, sputtering a layer of tin film on the surface of the second forming substrate;
s35, melting the tin film, and bonding a second forming substrate outside the contour data of the electrode sheet structure 210 on a second substrate;
s36, removing the portion of the second molded substrate that is inside the contour.
Specifically, similar to the processing method of the part sheet structure 110, a tin film is sputtered on the surface of the second forming substrate, the second forming substrate on which the tin film is sputtered is placed in an electrode processing station (right side in fig. 6), the tin film outside the outline of the electrode sheet structure 210 is scanned by using laser based on the acquired outline data of the electrode sheet structure 210, so that the tin film is melted, and then the part of the electrode sheet structure 210 outside the outline is bonded to the second substrate, so that the electrode sheet structure 210 is fixed to the second substrate; according to the profile data of the electrode sheet structure 210, scanning and cutting are carried out on the second forming substrate along the set profile by using laser, so that the second forming substrate is divided into two parts based on the set profile, and the part of the second forming substrate, which is positioned in the profile, is removed to obtain the electrode substrate; the next electrode foil structure 210 is then subjected to the operations of sputtering a tin film, melting the tin film, and cutting until all of the electrode foil structures 210 are processed into electrode substrates.
It should be noted that, the above-mentioned substrate processing process is provided with two processing stations for respectively processing the electrode plate and the part substrate, and in the actual processing process, one processing station can be set as required according to the processing conditions. The thickness of the tin film can be selected according to the actual processing requirement of the part, the thickness of the tin film in the embodiment is set to be 2 micrometers, in addition, the tin film is melted, the laser power adopted in the cutting process of the part sheet structure 110 and the electrode sheet structure 210 is different, the first substrate and the second substrate cannot be damaged in the process of cutting the part sheet structure 110 by laser, and the tin film melting can be realized.
Performing superposition fitting on the machined part substrate according to the three-dimensional part geometric model 100 to form a three-dimensional basic part 500, and performing superposition fitting on the machined electrode substrate according to the three-dimensional electrode 600 geometric model to form a three-dimensional electrode 600; the superposition fitting of the part substrate and the superposition fitting of the electrode substrate can be carried out at the same time. The fitting means that the part substrates are bonded by the melted tin film along the height direction thereof to form the complete base part 500, and the electrode substrates are bonded by the melted tin film along the height direction thereof to form the complete three-dimensional electrode 600. The three-dimensional electrode 600 after fitting is complementary to the base part 500 in structure, and an inner cavity is formed in the three-dimensional electrode 600, and the overall size of the inner cavity is larger than that of the base part 500, so that the base part 500 can be placed in the inner cavity for electric spark machining.
Then, the electric discharge machining is performed, referring to fig. 7, fig. 7 shows a schematic diagram of the electric discharge machining process in the form of a cross section of the three-dimensional electrode 600 and the base part 500, in step S50, the position of the three-dimensional electrode 600 and/or the base part 500 is adjusted, the base part 500 is placed in an inner cavity of the three-dimensional electrode, the positive electrode of the high-frequency pulse dc power supply 700 is connected to the three-dimensional electrode 600, the base part 500 is connected to the negative electrode of the high-frequency pulse dc power supply 700, the micro electric discharge is generated between the three-dimensional electrode 600 and the base part 500 under the action of the high-frequency pulse dc power supply 700, the step on the surface of the base part 500 is gradually machined until the step is completely eliminated under the action of the micro electric discharge, the three-dimensional part is obtained, the forming accuracy of the three-dimensional part is improved, and further, the cutting edge of, the defect of rough surface of the three-dimensional part caused by cutting is overcome, and the surface quality of the three-dimensional part is improved.
It should be noted that 5-10 microns is kept between the outer wall surface of the base part 500 and the inner wall of the inner cavity of the three-dimensional electrode 600, so as to optimize the machining effect of the electric spark discharge on the base part 500. In addition, as used herein, the term "complementary" means that the three-dimensional part has a shape similar to the shape of the lumen of the three-dimensional electrode 600, and the size of the lumen of the three-dimensional electrode 600 is larger than the size of the three-dimensional part; it is conceivable that, in an ideal case, after the three-dimensional part is placed in the internal cavity of the three-dimensional electrode 600, a state is achieved in which the intervals between any place of the surface of the three-dimensional part and the inner wall of the internal cavity of the three-dimensional electrode 600 are uniform, so as to improve the machining effect of the electric discharge.
The EDM process may be assisted by external processing equipment, such as devices that are capable of driving the three-dimensional electrode 600 or the three-dimensional part up and down (along the Z axis), rotating (along the Z axis or the Y axis), and moving (along the X axis or the Y axis). Since the three-dimensional part and the inner cavity of the three-dimensional electrode 600 in this embodiment are configured as a prism with a trapezoidal cross section, which has a large end and a small end, the driving device is used to rotate and/or move the three-dimensional electrode 600, so that the large end of the three-dimensional electrode 600 is aligned with the small end of the base electrode, thereby facilitating the base part 500 to enter the inner cavity of the three-dimensional electrode 600 (if the three-dimensional part is configured as another case, the position adjustment is not needed); aligning the center of the three-dimensional electrode 600 with the center of the base part 500, so that the base part 500 is exactly positioned at the center of the inner cavity of the three-position electrode, and ensuring that all positions of the base part 500 can receive the discharge effect of electric sparks; it should be noted that, during the electric spark discharge process, the position of the three-dimensional electrode 600 may also be adjusted along the X-axis, the Y-axis, or the Z-axis, so as to perform targeted machining on each position of the base part 500; after the basic part 500 is machined, the surface quality of the basic part 500 is checked, and if the machining does not meet the requirement, the basic part can be placed into the three-dimensional electrode 600 again for machining again, so that the machining quality of the three-dimensional part is guaranteed.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. Furthermore, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
Claims (10)
1. A part processing method based on electric spark processing is characterized by comprising the following steps,
s10, manufacturing a three-dimensional part geometric model and a complementary three-dimensional electrode geometric model;
s20, performing discrete slicing based on the three-dimensional part geometric model to obtain a plurality of part sheet structures, acquiring contour data of each part sheet structure, performing discrete slicing based on the three-dimensional electrode geometric model to obtain a plurality of electrode sheet structures, and acquiring contour data of each electrode sheet structure;
s30, arranging a first forming substrate and a second forming substrate, and cutting the first forming substrate and the second forming substrate according to the contour data of the part sheet structure and the contour data of the electrode sheet structure to obtain a plurality of part substrates and electrode substrates;
s40, fitting the superposed part substrate into a basic part, fitting the superposed electrode substrate into a three-dimensional electrode, wherein the overall size of the inner cavity of the three-dimensional electrode is larger than that of the basic part;
and S50, placing the basic part in the inner cavity of the three-dimensional electrode, and electrifying the basic part and the three-dimensional electrode to enable electric spark discharge to be carried out between the basic part and the three-dimensional electrode, so as to obtain the three-dimensional part.
2. The electric discharge machining-based part machining method as claimed in claim 1, wherein the step S10 includes,
s11, designing a three-dimensional part geometric model through three-dimensional computer aided software;
and S12, establishing a three-dimensional electrode geometric model complementary to the three-dimensional part geometric model based on the three-dimensional part geometric model.
3. The electric discharge machining-based part machining method as claimed in claim 1, wherein in the step S20, the three-dimensional part geometric model and the three-dimensional electrode geometric model are discretely sliced in a height direction.
4. The electric discharge machining-based part machining method as claimed in claim 1, wherein the step S30 includes,
s31, sputtering a tin film on the surface of the first forming substrate;
s32, melting the tin film, and bonding the first forming substrate positioned within the structural outline of the part sheet on the first substrate;
s33, removing the portion of the first molding substrate outside the contour of the part sheet structure.
5. The electric discharge machining-based part processing method as claimed in claim 4, wherein in the step S33, the part substrate is obtained by performing scanning cutting along the contour position of the first formed substrate using the laser according to the part sheet contour data.
6. The electric discharge machining-based part machining method as claimed in claim 1, wherein the step S30 further includes,
s34, sputtering a layer of tin film on the surface of the second forming substrate;
s35, melting the tin film, and bonding a second forming substrate outside the structural outline data of the electrode sheet on a second substrate;
and S36, removing the part of the second forming substrate located within the outline of the electrode sheet structure.
7. The electric discharge machining-based part machining method as claimed in claim 6, wherein in the step S36, the electrode substrate is obtained by performing scanning cutting along the contour position of the second molded substrate using the laser according to the electrode slice contour data.
8. The electric discharge machining-based part processing method as claimed in any one of claims 4 to 7, wherein in the step S30, the tin film is melted by scanning the tin film with a laser based on the part sheet profile data and the electrode sheet profile data.
9. The electric discharge machining-based part machining method as claimed in claim 1, wherein in the step S50, the position of the three-dimensional electrode and/or the base part is adjusted so that the base part enters the inner cavity of the three-dimensional electrode and the three-dimensional electrode is aligned with the center of the base part.
10. The method for processing a part according to claim 1, wherein the space between the inner wall surface of the three-dimensional electrode and the outer wall surface of the base part is 5 to 10 μm in the step S50.
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