The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 06, 2024

Filed:

Mar. 21, 2022
Applicant:

Hefei University of Technology, Anhui, CN;

Inventors:

Lei Li, Anhui, CN;

Haihong Huang, Anhui, CN;

Haojie Sang, Anhui, CN;

Mengxiao Yang, Anhui, CN;

Qingyu Lyu, Anhui, CN;

Lei Gan, Anhui, CN;

Libin Zhu, Anhui, CN;

Zhifeng Liu, Anhui, CN;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21D 26/14 (2006.01);
U.S. Cl.
CPC ...
B21D 26/14 (2013.01);
Abstract

The present disclosure relates to an electromagnetic stamping method and an electromagnetic stamping device. The electromagnetic stamping method includes: dividing a blank holder of a stamping device into a plurality of blank holder areas based on a contour characteristic of a workpiece to be stamped; setting a blank holder force function over time for each blank holder area based on a shape characteristic of the blank holder area; collecting blank holder force data of each blank holder area every cycle period t, and calculating an error between the blank holder force data and a value of the blank holder force function at a current time; and controlling a blank holder force for each blank holder area based on the error, and obtaining the workpiece to be stamped by stamping sheet material under the blank holder force.


Find Patent Forward Citations

Li, Lei. (2024). Electromagnetic stamping method and device (U.S. Patent No. 11890661). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11890661

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…