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An electric discharge machining method for arrayed micro-stepped grooves

A technology of stepped groove and EDM, which is applied in the field of 2.5D EDM of arrayed micro stepped grooves, can solve the problems of machining shape and structure limitations, and achieve the effects of high compatibility, improved machining efficiency and broad application prospects.

Active Publication Date: 2020-10-16
PEKING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since these methods are all two-dimensional array graphics through the processing technology of controlling the processing depth, the shape and structure of the processing are greatly restricted.

Method used

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  • An electric discharge machining method for arrayed micro-stepped grooves
  • An electric discharge machining method for arrayed micro-stepped grooves
  • An electric discharge machining method for arrayed micro-stepped grooves

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Embodiment Construction

[0031] The present invention will be described in further detail below through the examples and accompanying drawings. The embodiments described by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0032] figure 1 It is a schematic diagram of the structure of the second-order micro-array stepped grooves processed by micro-EDM. The number of steps in the stepped grooves is not limited, and the number is greater than or equal to two. The shapes of the stepped grooves in the figure include square, circular, long strip, and triangle. In addition, they can also be other shapes, including special-shaped figures such as gears. The above four shapes are just examples and are not limited to the above figures.

[0033] figure 2 It is a schematic diagram of the arrangement of different patterns of the second-order micro-array electrodes, and the number of the patterns with different sizes c...

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Abstract

The invention relates to an electrical discharge machining method of array fine stepped grooves. The method comprises the steps that firstly, fine array electrodes with different large and small patterns are prepared; and then the fine array electrodes with the different large and small patterns are adopted for performing electrical discharge machining of different depths on workpieces, so that the fine array stepped grooves are formed. The number of steps of each stepped groove is greater than or equal to 2, and the numbers of the different patterns correspond to the numbers of the steps of the stepped grooves. Furthermore, electrode consumption compensation can also be made by increasing the numbers of the fine array electrodes with the completely identical patterns. According to the electrical discharge machining method, the array N-stepped (N is greater than or equal to 2) fine stepped grooves are machined by means of the fine electrical discharge machining technology, and the perpendicularity of the stepped grooves can be guaranteed in an electrode consumption compensation mode.

Description

technical field [0001] The present invention relates to the technical field of micro electric discharge machining, and more specifically relates to a 2.5D electric discharge machining method for arrayed micro stepped grooves. Background technique [0002] The micro-EDM technology uses the pulsed spark discharge between the workpiece and the tool electrode to generate instantaneous high temperature to locally melt and vaporize the workpiece material, so as to achieve the purpose of erosion processing. Due to the characteristics of non-contact, almost no cutting force, and not limited by the strength and hardness of materials, micro-EDM technology is especially suitable for high-precision, non-deformed micro-part feature processing and micro-machining of hard, brittle and difficult-to-machine conductive materials. Therefore, micro-EDM technology has become an important direction in the field of micro-manufacturing, and is more and more widely used in the processing of key part...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23H1/00
CPCB23H1/00
Inventor 吴烨娴夏雁鸣马盛林陈兢
Owner PEKING UNIV
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