Process optimization method for improving drawing lug of cylindrical part based on finite element simulation
A technology for process optimization and cylindrical parts, applied in design optimization/simulation, 3D modeling, image data processing, etc., can solve the problems of wasting resources, unguaranteed product quality, spending a lot of time, manpower and financial resources, etc. Achieve the effect of reducing cost, improving product quality, improving product qualification rate and material utilization rate
Pending Publication Date: 2020-02-21
CHANGZHOU DONGFENG BEARING
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The disadvantage of this traditional method is that it usually takes a lot of time, manpower and financial resources, and the quality of the designed products cannot be guaranteed, and more resources will inevitably be wasted.
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[0021] like figure 1 As shown, the present invention is based on a finite element simulation process optimization method for improving the drawing lug of cylindrical parts, including the following steps:
[0022] 1. Determination of plastic strain ratio r value: according to the national standard "GB / T5027-2016 Determination of Plastic Strain Ratio (r Value) of Metal Material Sheet and Strip", first use wire cutting to roll and roll on the taken material respectively Take 5 dumbbell specimens in the directions of 0°, 45° and 90° respectively, and then operate on the tensile testing machine as required to obtain the R value.
[0023] 2. Use the UG 3D modeling software to build a 3D model based on the 2D mold drawing of the cylindrical part, and then import it into the finite element analysis software DYNAFORM, divide it into meshes, and use the previously measured plastic strain ratio R After the value is input into DYNAFORM, input the original working condition according to t...
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The invention provides a process optimization method for improving a drawing lug of a cylindrical part based on finite element simulation. The process optimization method comprises the following steps: (1) selecting any metal material with anisotropism, and measuring plastic strain ratio R values of the metal material in a plurality of directions on a tensile testing machine; (2) using DYNAFORM software for carrying out deep drawing analog simulation on the cylindrical part, and outputting a lug value of the cylindrical part according to an analog result; (3) selecting a plurality of single factors according to actual working conditions; (4) selecting a plurality of numerical values for each single factor by using a control variable, keeping other factors unchanged, respectively carrying out deep drawing analog simulation, and analyzing a lug value result to obtain influence weights of different factors; and (5) performing orthogonal test drawing analog simulation, comparing final results, and obtaining the optimal drawing process according to the single factor combination with the minimum lug value. By means of the method, the deep drawing process can be optimized, the convex lugphenomenon can be effectively relieved during deep drawing of the cylindrical part, and the final product percent of pass and the utilization rate are increased.
Description
technical field [0001] The invention belongs to the field of material forming and processing, and in particular relates to a process optimization method for improving the drawing lug of a cylindrical part based on finite element simulation. Background technique [0002] Drawing, also known as drawing, is a processing procedure that uses the plasticity of the sheet metal to deform a flat metal sheet into an open hollow cylindrical part with the help of a special mold. It is one of the most typical forming processes in the stamping process and is widely used in actual stamping production. If it is combined with other stamping forming processes, it is also possible to make parts with more complex shapes. Deep drawing can process a wide range of sizes, from small parts of a few millimeters to large parts with an outline size of 2 to 3 meters and a thickness of 200 to 300 mm, all of which can be made by deep drawing. Therefore, in the stamping production of machinery, electrica...
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IPC IPC(8): G06F30/23G06T17/00G06F113/22G06F113/24
CPCG06T17/00
Inventor 黄振张鑫杰黄达李欣懋
Owner CHANGZHOU DONGFENG BEARING