Optimization method for hole drilling simulation of electrophoresis

Abstract

The invention provides an optimization method for hole drilling simulation of electrophoreses. The method includes the steps of finding a corresponding regional position in a modeling model according to an electrophoretic malfunction area of a coated car, designing holes with different apertures on the regional position and conducting electrophoretic simulation calculation to obtain the relation between the apertures and the thicknesses of electrophoretic films; choosing a thickness value of an electrophoretic film as a comparison basis and adopting the distance between each nearest point based on the thickness value of the electrophoretic film and the center of each corresponding hole as an influence range of the film thicknesses of the apertures to acquire the relation between the apertures and the influence ranges of the film thicknesses; according to the relation between the apertures and the thicknesses of the electrophoretic films and the relation between the apertures and the influence ranges of the film thicknesses, combining the whole properties of the car to determine a hole drilling scheme; according to the hole drilling scheme, conducting electrophoretic simulation calculation in the modeling model, generating an optimization testing report, and drilling holes in the car according to the optimization testing report. The optimization method for the hole drilling simulation of the electrophoreses has the advantages of being capable of rendering the sizes and positions of the holes more precise, reducing production costs, shortening development circle of the whole car and improving production efficiency.

Description

technical field [0001] The invention relates to an electrophoresis simulation opening optimization method. Background technique [0002] In the electrophoretic coating process of automobiles, when electrophoretic defects occur, taking into account cost and production cycle issues, opening holes is the most commonly used optimization measure. The commonly used perforation basis in the prior art can generally be divided into three types: the first is tentative perforation, which is highly blind and often requires multiple optimizations to find a better perforation scheme. Not only is the cost high, but it is also easy to extend the vehicle development cycle. The second is to determine the hole opening plan based on actual production experience. This kind of plan is less stable. Due to the different experience of the implementer, the hole opening plan may also be different, and in the face of new models, new structures or processes When the parameters change, it is still very...

AI Technical Summary

Problems solved by technology

The commonly used perforation basis in the prior art can generally be divided into three types: the first is tentative perforation, which is highly blind and often requires multiple optimizations to find a better perforation scheme. Not only high cost, but also easy to extend the vehicle development cycle

The second is to determine the hole opening plan based on actual production experience. This kind of plan is less stable. Due to the different experience of the implementer, the hole opening plan may also be different, and in the face of new models, new structures or processes When the parameters change, it is still very difficult to determine the hole opening scheme based on experience

The third method is to guide the hole opening based on the data obtained from the swimming penetration test. This method has strong guiding significance, but the test process is more complicated, and the actual structure of the car body is far more complicated than the test state. At the same time, the structure of the car body is different. In order to get a better hole opening plan, the decision-maker still needs to have rich production experience

[0003] It can be seen from the above that the existing hole optimization scheme is highly dependent on the designer's experience, and its hole radius and hole location are highly blind

And in some areas where the space is narrow, but the size and position of the opening have a great influence on the coating, NVH performance, strength and collision safety, it is very difficult or even impossible to obtain the optimal solution for the size and position of the opening

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