A Method of Determining the Minimum Ablation Fillet Radius of Parts

Abstract

The invention discloses a method for determining the minimum ablation fillet radius of a part, which comprises the following steps: (1), making a sample; (2), determining the conditions of a process test; (3), simulating the actual situation of production and starting Test; (4), result evaluation. The beneficial effects of the invention are: by evaluating the "ablation" degree of the bath fluid to the parts, the damage to the parts caused by the improper bath fluid formulation is avoided, and the scrap of the parts caused by the "ablation" is reduced. The conditions of the process test are determined by the situation, and the minimum ablation fillet radius of the parts can be tested under various electrolytes and process parameters, which is suitable for the detection of the bath liquid in the test and production process.

Description

technical field [0001] The invention relates to a method for determining the minimum ablation fillet radius of a part, which belongs to the technical field of part detection. Background technique [0002] When aluminum is anodized at high voltage, the anode current is high, the oxide film grows rapidly, and a powder-free hard oxide film is produced. If the anodization is continued under high voltage, "ablation" will be caused due to the coarsening of the interface between the oxide and the metal and the accumulation of Joule heat. The smaller the corner radius of the part, the easier the current concentration will cause local overheating and burns of the part. Therefore, it is generally required that all edges and corners on the parts should be rounded, and the rounding radius should not be less than R0.5mm. However, the minimum ablation fillet radius of parts under different electrolytes and process parameters is different, which may be greater or less than R0.5mm, and the...

AI Technical Summary

Problems solved by technology

However, the minimum ablation fillet radius of parts under different electrolytes and process parameters is different, which may be greater or less than R0.5mm, and the fillet of the part itself is very likely to be smaller than it

In this case, if according to the existing practice, the performance of the bath solution is not tested, and the parts are directly subjected to hard anodic oxidation treatment, "ablation phenomenon" will inevitably occur, causing the parts to be scrapped

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