Method for finishing processing of controllable deforming electronic beam

A finishing and electron beam technology, applied in the field of controllable deformation electron beam finishing, can solve the problems of uneven energy distribution in the overlapping area of ​​the beam spot, increase of the plane area of ​​the vacuum chamber of the processing device, and stress concentration on the surface of the material, etc. The effect of uniform irradiation energy distribution, low surface stress and smooth surface

Inactive Publication Date: 2006-06-28
CHONGQING UNIV OF TECH
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Problems solved by technology

However, the circular cross-section electron beam processing it adopts, the energy distribution in the overlapping area of ​​the beam spot is uneven, the stress on the material surface is concentrated, and the processing efficiency is relatively low.
In addition, since the large-area irradiation method adopts the table movement method, it is bound to cause the plane area of ​​the vacuum chamber of the processing device to increase several times under the condition of the same size processing capacity, resulting in unnecessary waste

Method used

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  • Method for finishing processing of controllable deforming electronic beam

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Embodiment Construction

[0019] The present invention will be further described below with reference to the drawings and specific embodiments.

[0020] The controllable deformation electron beam finishing processing method of the present invention is based on the electron beam processing method and is realized by controlling the deformation and deflection of the electron beam by a computer.

[0021] Such as figure 1 As shown, the method of the present invention inputs the processing task into the computer, and the computer control system controls the electron beam generator connected to it to generate electron beams, which are converged by the electromagnetic coil and deformed. The deformed beam spot unit is based on the number of irradiation and energy density of the processing task. Process parameters such as, irradiation position, etc.; at the same time, command the controllable workbench to move for compensation; finally end the task. In the figure, the solid line represents the process, and the dotte...

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Abstract

A precise machining method with cross-section shape controllable electronic beam includes such steps as calculating and controlling the energy density, radiation times, radiated positions, and deflection of electronic beam, and using the light diaphragm made of Mo to obtain needed electronic beam. Its apparatus is composed of computer control system, electronic beam generator, electromagnetic coil, deflection coil and bench control system.

Description

Technical field [0001] The invention relates to a finishing and surface modification method for metal parts, which is mainly used for polishing the surface of a mold and a workpiece; in particular, it relates to a new controllable deformation electron beam finishing method. Background technique [0002] Chip processing and EDM have long been widely used in molds and parts processing. Due to surface defects such as machining accuracy, microcracks and white layers, the surface of molds and parts need final polishing and surface finishing before they can be used. [0003] Common surface finishing methods for materials include grinder polishing, electrolytic polishing, ultrasonic polishing and manual polishing. For molds with simple shapes, there are also robots for polishing [1] . Manual polishing has become the main method because of its simple operation, low cost, and ability to polish small contours. However, the manual polishing process requires the skills of skilled operators, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B1/00
Inventor 许洪斌胡建军陈元芳蒋鹏
Owner CHONGQING UNIV OF TECH
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