摘要
以某异形空心铝型材为研究对象,采用数值模拟软件对其挤压工艺进行模拟,利用塑性成型理论对模拟结果进行分析,根据分析结果,调整阻流块结构尺寸及布置以平衡金属流出模孔的速度,经多次改进后,型材截面上的流速差异率降低至5%以内,满足最优模具设计评判依据。改进后模具生产的型材符合质量要求,减少了试模次数,降低了型材的开发成本。
Taking a special-shaped hollow aluminum profile as the research object, the extru- sion process of it was simulated by using simulation software. And the results were ana- lyzed according to the plastic forming theory. In view of the results the velocity difference rate was less than 5% by adjusting the size and location of the baffle block which balanc- ing the flow velocity of the metal. It was met the judgment of the best die design which improved the quality of the forming parts and reduced the cost of the production.
出处
《模具工业》
2018年第1期8-11,共4页
Die & Mould Industry
关键词
铝型材
挤压工艺
数值模拟
模具结构改进
流速
aluminum profile
extrusion process
numerical simulation
improvement of die structure
flow velocity
