Title:
THREE-DIMENSIONAL MODEL CUTTING METHOD FOR HIGH-QUALITY STAMPING AND DISCHARGING
Document Type and Number:
WIPO Patent Application WO/2024/050935
Kind Code:
A1
Abstract:
The present invention relates to the field of computer-aided design. Disclosed is a three-dimensional model cutting method for high-quality stamping and discharging. The method comprises the following steps: 1) fully considering geometric information of a curved surface of a model, generating a four-symmetry direction field on an input curved surface and extracting singular points; 2) performing correlation analysis by using the number of the singular points and the length of cutting lines, and simplifying redundant singular points; 3) designing a set of curved surface cutting edges perpendicular to each other, and cutting the input curved surface into a structure homeomorphic to a circular disc while connecting the singular points; 4) performing low-distortion parameterization on the cut curved surface and optimizing the parameterization result; and 5) obtaining high-quality stamping and discharging by using a plane parameterization optimization result. The method has the following advantages: high efficiency of a polysquare in stamping and discharging is utilized, and geometric characteristics of the polysquare are fully considered, so that the operation is simple, and the robustness is high; moreover, the present invention has a very important practical application value for high-quality sheet metal stamping and discharging.
Inventors:
HUANG JIN (CN)
BAO HUJUN (CN)
WANG SHIYI (CN)
CHEN JIONG (CN)
GAO XIFENG (CN)
BAO HUJUN (CN)
WANG SHIYI (CN)
CHEN JIONG (CN)
GAO XIFENG (CN)
Application Number:
PCT/CN2022/127503
Publication Date:
March 14, 2024
Filing Date:
October 25, 2022
Export Citation:
Assignee:
UNIV ZHEJIANG (CN)
International Classes:
G06T17/20; B21D45/02
Foreign References:
| CN113077553A | 2021-07-06 | |||
| CN109815527A | 2019-05-28 | |||
| CN110516388A | 2019-11-29 | |||
| US20200346420A1 | 2020-11-05 |
Attorney, Agent or Firm:
HANGZHOU QIUSHI PATENT OFFICE CO., LTD. (CN)
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