A microchannel wire cutting processing method

Abstract

The invention provides a micro-channel wire-cut machining method. A micro-channel raw material is clamped on a wire-cut machining platform, and a machining path is set. A pulse controller is configured through an upper computer, and the mode and the parameter of the pulse controller are decided according to the required ripple feature size of a machining surface. Cut machining is started accordingto the set machining path, and the feeding of an electrode wire is controlled by the servo system of an original machine. In the machining process, the pulse controller controls a programmable pulsepower supply through a serial port in real time and enables the output waveform of the pulse power supply regularly vary according to the parameter set by the upper computer, so that the cut workpiecesurface forms a periodical ripple shape. The wire-cut machining method has the characteristics of high wire-cut machining efficiency, low cost, flexible machining technology and the like and is widely applied to the machining of the micro-channel. Through the on-line changing method of the electric parameter of the electric sparkle wire-cut pulse power supply, electric discharge energy in the machining process is changed, the surface of the cut workpiece has periodical ripples, the specific surface area of the micro-channel is increased, and the hydrogen producing performance of a reactor isimproved.

Description

Technical field [0001] The invention relates to microchannel processing, in particular to a microchannel wire cutting processing method. Background technique [0002] In recent years, with the development of high technology such as aerospace technology, information and electronic technology, MEMS (micro-electro-mechanical system) technology, biotechnology and life sciences, the miniaturization and compactness of space scales, and the complexity of structures and conditions have emerged Such outstanding features make it necessary to consider the effects of scale refinement, structure and condition complexity in the medium transfer process. Micro-scale flow and heat transfer have become one of the theoretical and technological foundations of modern high-tech. With the deepening of research, micro-scale heat transfer technology, micro-channel reactors and other technologies have gradually expanded from high-tech fields to traditional industrial fields. [0003] The micro-channel radi...

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Problems solved by technology

However, the surface of the microchannel processed by wire cutting is smooth and the specific surface area is low.

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