Plasma textured cutting tool and its preparation method

Abstract

The invention discloses a plasma texturing cutter and a preparing method thereof. The method comprises the steps that firstly, a mask plate is prepared, a chromium nitride layer is sputtered and deposited on the surface of a glass substrate through a sputtering method, a chromium film layer is sputtered on the surface of the chromium nitride layer, a chromium sesquioxide layer is sputtered on the surface of the chromium film layer, and then a nanoscale texture array is machined on the chromium film layer through the electron beam lithography; secondly, pre-treatment of the cutter is carried out; thirdly, photoetching pattern transferring is carried out, a cutter-cuttings contact area of a front cutter face of the cutter is evenly coated with photoresist, exposure is carried out on the photoresist, the photoresist is dissolved through a developing solution, and a nanoscale texture array pattern is formed on the photoresist; and fourthly, plasma etching is carried out, and by means of plasma etching, the nanoscale texture array is formed on the cutter in an etching manner. The cutter-cuttings contact length in the cutting process is reduced through the nanoscale texture array, accordingly, the cutting force and the cutting temperature are reduced, and bonding of cuttings is reduced; and the anti-bonding performance of the cutter is improved, and the service life of the cutter is prolonged.

Description

technical field [0001] The invention relates to a plasma textured cutter and a preparation method thereof. Background technique [0002] In the traditional cutting process, in order to meet the requirements of the surface quality of the workpiece and prolong the service life of the tool, it is usually necessary to use cutting fluid to lubricate and cool the tool continuously. The use of cutting fluid not only requires a higher cost, but also pollutes the environment. In order to reduce the use of cutting fluid, researchers began to devote themselves to the study of dry cutting and the development of new dry cutting tools to meet the performance requirements of dry cutting. The micro-textured tool is a new type of dry cutting tool. By processing the micro-nano structure on the surface of the tool, it can capture and store chips, reduce the cutting force and improve the service life of the tool during cutting. [0003] The Chinese invention patent application with the applic...

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Problems solved by technology

[0003] The Chinese invention patent application with the application number 201410823133.9 discloses a new processing method for the micro-texture texture of the pits on the surface of superhard material tools, using an ultrasonic vibration-electric discharge-grinding composite processing platform, and grinding in multiple stages Cutting, electric discharge machining, micro-energy pulse discharge and ultrasonic vibration, the whole set of processing equipment is huge and complex, with many processing steps, and can only obtain micron-level texture on the tool

In addition, the surface ablation of EDM is serious, the processing efficiency is low, and the dimensional accuracy of the micro-texture obtained by processing is not high, the texture cross-section is conical, the space for capturing and storing chips is limited, and the cutting performance of the tool needs to be further improved

[0004] Therefore, the existing micro-textured dry cutting tool preparation methods have technical defects such as difficult processing, uncontrollable micro-texture size and low precision, and poor ability of micro-texture to capture and store chips.

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