A Sheet Metal Forming Simulation of Automotive Outer Panels Considering the Behavior of Air in Die Cavity

被引：0

作者：

Choi, Kwang Yong ^{[2
]}

Kim, Yun Chang ^{[3
]}

Choi, Hee Kwan ^{[3
]}

Kang, Chul Ho ^{[3
]}

Kim, Heon Young ^{[1
]}

机构：

[1] Kangwon Natl Univ, Dept Mech & Biomed Engn, 192-1,Hyoja 2 Dong, Chunchon Si 200701, Gangwon Do, South Korea

[2] Hankook ESI Co, Virtual Mfg Solut, Seoul 157033, South Korea

[3] Kia Motors, Prod Dev Div, Stamping Tool Design Team 2, Gyeonggi, South Korea

来源：

NUMISHEET 2014: THE 9TH INTERNATIONAL CONFERENCE AND WORKSHOP ON NUMERICAL SIMULATION OF 3D SHEET METAL FORMING PROCESSES: PART A BENCHMARK PROBLEMS AND RESULTS AND PART B GENERAL PAPERS | 2013年 / 1567卷

关键词：

Sheet metal forming simulation; Die cavity; Ideal gas law; FPM (finite point method); Roof panel; Body side outer panel; FINITE POINT METHOD;

D O I：

10.1063/1.4850093

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

During a sheet metal forming process of automotive outer panels, the air trapped between a blank sheet and a die tool can become highly compressed, ultimately influencing the blank deformation and the press force. To prevent this problem, vent holes are drilled into die tools and needs several tens to hundreds according to the model size. The design and the drilling of vent holes are based on expert's experience and try-out result and thus the process can be one of reasons increasing development cycle. Therefore the study on the size, the number, and the position of vent holes is demanded for reducing development cycle, but there is no simulation technology for analyzing forming defects, making numerical sheet metal forming process simulations that incorporate the fluid dynamics of air. This study presents a sheet metal forming simulation of automotive outer panels (a roof and a body side outer) that simultaneously simulates the behavior of air in a die cavity. Through CAE results, the effect of air behavior and vent holes to blank deformation was analyzed. For this study, the commercial software PAM-STAMP (TM) and PAM-SAFE (TM) was used.

引用

页码：808 / 811

页数：4

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