Preparation method of sectional chemical milling sample plate

Abstract

The invention relates to a preparation method of a sectional chemical milling sample plate, which comprises the following steps: opening a part process model in CATIA software according to the requirements of a chemical milling process model and the customization requirements of the chemical milling sample plate, and adding process elements consisting of a sample plate form and position line, a sectional line, a sample plate positioning hole, a chemical milling allowance and an allowance line to obtain the chemical milling process model; designing various scribed lines on the chemical millingprocess model on a sample plate material thickness dimension surface inwards away from the die surface; sample plate shape and bit lines are essential; forming a sample plate positioning hole consistent with the drawing die positioning hole in position in the thickness dimension surface of the sample plate material, wherein the hole is used for positioning a chemical milling sample plate in the lineation process on chemical milling skin; then designing the thickness dimension surface of the sample plate material in a segmented mode according to requirements, namely, the segmented chemical milling sample plate can be directly used for designing a skin part chemical milling sample plate with large curvature change and large area, and the efficiency of the complex chemical milling sample plate design period and the complex chemical milling skin part forming period is greatly improved.

Description

technical field [0001] The invention relates to the technical field of electrical testing, in particular to a method for preparing segmented chemical milling templates. Background technique [0002] For hyperbolic skin parts with thin walls, large areas, and large curvature changes, chemical milling is usually used to corrode the groove structure in the actual processing process. Chemical milling templates are essential in the chemical milling process A special tool for the chemical milling groove process after part blanking and drawing. [0003] The chemical milling template is usually formed by drawing a 1.2 mm thick aluminum plate with the material grade LY12 on the mold, then engraved by a three-coordinate machine tool, and finally cut by a fitter to form a gap. The chemical milling template is formed in this complex forming process. Various processing stresses directly cause the chemical milling template with a large curvature change and a large area not to fit the mol...

AI Technical Summary

Problems solved by technology

[0003]Chemical milling samples are usually made of LY12 aluminum plates with a thickness of 1.2 mm on a mold, then engraved by a three-coordinate machine tool, and finally cut by a fitter Gap forming, the chemical milling template forms various processing stresses in this complex forming process, which directly causes the chemical milling template with a large curvature change and a large area not to fit the mold, and the chemical milling template needs to be repeatedly corrected to fit the mold , and the problem that the chemical milling template does not stick to the mold greatly affects the processing progress of such chemical milling parts

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