基于3D打印的发动机缸盖真空浇铸研究

Effect of Vacuum Degree on Casting Performance of Engine Cylinder Head

随着汽车制造工艺的不断进步,发动机铸造的传统工艺已满足不了轻薄、复杂和特殊铸件的生产要求。以3D打印快速成型模具为基础,研究真空浇铸工艺,弥补传统工艺在生产复杂铸件中的不足。发动机缸盖在铸造过程中,当真空度数值在-40 kPa时,材料的充型效果得到提升,内部的缺陷明显减少。

With the continuous progress of automobile manufacturing technology,the traditional process of engine casting can not meet the production requirements of light,complex and special castings.Based on the 3D printing rapid prototyping mold,this paper studies the vacuum casting process,so as to make up for the shortcomings of the traditional process in the production of complex castings.When the vacuum value of the engine cylinder head is-40kPa,the filling effect of the material is improved and the internal defects are significantly reduced.