文章信息/Info

Title:

Digital Design and Manufacture of Extrusion Die

作者:

張志豪; 謝建新

(北京科技大學 新材料技術研究院,北京 100083)

Author(s):

Zhang Zhi-hao(;  Xie Jian-xin

(Institute for Advanced Materials and TechnologyUniversity of Science and Technology BeijingBeijing 100083PR China)

關鍵詞:

擠壓模具; 數字化設計; CNC加工; 數值模擬

DOI:

10.7502/j.issn.1674-3962.2013.05.06

摘要:

本文介紹了基于數字仿真技術的擠壓模具數字化設計、結構優化、產品質量預測的實現方法，以及擠壓模具數字化制造的加工工藝。擠壓模具數字化設計的目的是提供模具的幾何、拓撲信息和擠壓成形的工藝信息，其核心技術是數字化建模與數字化仿真。數字化仿真技術在擠壓過程金屬流動行為分析、模具結構優化、型材成形質量預測等方面已取得了良好的應用效果。采用基于仿真技術的虛擬試模方法，是實現擠壓模具的“零試模”有效途徑，也是形成新設計思路和設計方法的重要技術手段。大量采用CNC加工、熱處理和表面處理系統是擠壓模具數字化制造的主要特征。實現CAD、CAM和CAE的有效結合，提高復雜多孔空心型材擠壓模具的制造技術水平，是我國擠壓模具數字化制造的重要發展方向。

Abstract:

The article introduced the die digital design, optimization and production quality forecast of extrusion, and the processes of die digital manufacture. The authors pointed out that, the aims of the digital design of extrusion die were providing geometry and topology information of the die, as well as the process information of extrusion practice. The core technologies of the digital design were digital modeling and digital simulation. Digital simulation was applied in analyzing metal flowing behaviors, die optimization, and production quality forecast of extrusion. Using virtual extrusion based on digital simulation was an effective way to achieve 搘ithout die test?of extrusion die, and also was an important platform for developing new design ideas and methods. The feature of digital manufacture of extrusion die was the wide application of CNC processing, heat treatment and surface treatment. Improving the manufacture level of extrusion dies with complicate and multi-orifice structure through combining CAD, CAM and CAE effectively, was the key development direction of the extrusion die digital manufacture industry at the current stage of our country