虚拟试验设计在局部加压工艺改善中的应用

• 作 者: 陈国恩 黄志垣 常移迁 汪学阳 陈振宇
• 机 构: 广东鸿图科技股份有限公司,
• 出 处: 特种铸造及有色合金
• 发表日期: 2016年11期
• 关键词: DOE Local Pressurization Die Casting Improvement

压铸过程中由于局部加压工艺参数基本上凭借技术人员的经验去设定,造成局部加压效果不明显以及压铸件品质波动大。以某汽车缸盖罩铸件为例,以减小铸件缩孔为目标,对局部加压参数进行了试验设计。运用计算机模拟筛选出了满足目标的局部加压工艺参数。结果表明,采用筛选后的局部加压工艺参数,铸件的内部品质得到明显提高,保证了局部加压工艺的稳定性,提高了经济效益。

Die casting process due to local pressure process parameters basically by virtue of the experience of technicians to set, resulting in local pressure effect is not obvious and die-casting quality fluctuations. Take a car cylinder head cover castings as an example, to reduce the shrinkage of castings as the goal, the partial pressure parameters of the experimental design. Using computer simulation to filter out the local pressure to meet the target process parameters. The results show that the internal quality of the castings is obviously improved by using the partial pressure process parameters after screening, which ensures the stability of the local pressurization process and improves the economic benefits.