Flaky graphite electrode machining technique for injection mold

A flake graphite and electrode processing technology, applied in electric processing equipment, electrode manufacturing, metal processing equipment, etc., can solve the problems of thin-walled ribs easily broken, time-consuming and labor-intensive, and difficult to process in place.

Inactive Publication Date: 2017-05-31
乌鲁木齐九品芝麻信息科技有限公司
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Problems solved by technology

[0002] As an EDM electrode material, graphite has been widely used in the mold industry due to its advantages of high machinability, light weight, fast forming, extremely small expansion rate, small loss, and easy trimming; , especially like figure 1 The size of the upper end shown is 1.2mm, the root size is 1.5mm, and the height is 30-40mm. When thin-walled graphite electrodes with the size of ribs commonly used in products are CNC milled, the semi-finished electrodes often have the following problems: 1)

Method used

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  • Flaky graphite electrode machining technique for injection mold

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Embodiment Construction

[0012] A processing method for flake graphite electrodes of an injection mold includes pretreatment of graphite materials, reasonable selection of cutting tools and processing parameters, reasonable arrangement of numerical control milling steps, selection of high-speed graphite special processing machines, and establishment of numerical control programs.

[0013] The pretreatment of the graphite material: Due to the characteristics of the graphite itself, such as its manufacturing process, the material has high brittleness and hardness, and is prone to chipping during machining. In actual processing, the pretreatment of graphite materials includes the following processing procedures: 1) Before processing, soak the graphite blank in kerosene or spark oil, and take it out after the surface penetrates to a certain depth of 0.1-0.3mm; Before processing, immerse the semi-finished product in spark oil. This is because the oil leakage of graphite is only a little on the surface, and ...

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Abstract

The invention provides a flaky graphite electrode machining technique for an injection mold. By adoption of the flaky graphite electrode machining technique for the injection mold, the problems that during numerical-control milling of thin-walled graphite electrodes with reinforcing rib sizes, the upper ports of semi-finished electrodes are prone to brittle breakage frequently, and the sizes are not standard are solved. From the thought angle of systematic techniques, reasonable machining techniques are sought for discussion on the aspects of pretreatment of graphite materials, reasonable selection of tools and machining parameters, reasonable arrangement of numerical-control milling steps, selection of a special high-speed graphite machining machine, compiling of numerical-control programs and the like, a specific machining method and specific technological parameters are given, and a beneficial reference is provided for mold enterprises for graphite electrode machining; and automatic production can be achieved, production cost of similar electrodes is reduced effectively, and working efficiency is improved.

Description

technical field [0001] The invention relates to a processing method for a thin-sheet graphite electrode of an injection mold. Background technique [0002] As an EDM electrode material, graphite has been widely used in the mold industry due to its advantages of high machinability, light weight, fast forming, extremely small expansion rate, small loss, and easy trimming; , especially like figure 1 The size of the upper end shown is 1.2mm, the root size is 1.5mm, and the height is 30-40mm. When thin-walled graphite electrodes with the size of ribs commonly used in products are CNC milled, the semi-finished electrodes often have the following problems: 1) The top of the graphite electrode The top surface of thin-walled ribs is easy to break; 2) The size of the upper end is 1.2mm, and it is difficult to process in place; the above problems are usually dealt with in actual production, such as using fine sand to correct them, which is simple, rough, and time-consuming Therefore,...

Claims

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Application Information

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IPC IPC(8): B23H1/04
CPCB23H1/04
Inventor 熊运星
Owner 乌鲁木齐九品芝麻信息科技有限公司
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