V法铸造模具的FDM增材制造工艺研究  

Research on FDM Process Applied to Vacuum Process Mold Casting

作　　者：董选普[1] 左春林 凌宏江[1] DONG Xuanpu;ZUO Chunlin;LING Hongjiang(State Key Laboratory of Material Processing and Die&Mold Technology,Huazhong University of Science and Technology,Wuhan 430074,Hubei China)

机构地区：[1]华中科技大学材料成形与模具技术国家重点实验室,湖北武汉430074

出　　处：《铸造工程》2021年第1期30-36,共7页Foundry Engineering

摘　　要：采用FDM方式3D打印PLA模型方法替代传统数控加工V法造型用木模,分析了PLA模型的表面粗糙度、硬度、屈服强度、弹性模量、体积收缩率等性能对V法铸造工艺影响,试验表面FDM打印PLA模型能满足V法铸造工艺要求,既能保证铸件尺寸精度与表面质量,又降低了模具制作难度、缩短了模具加工周期、降低了材料成本,该方法具有很好的应用前景。3D printing PLA model using FDM mode methods instead of traditional nc machining method of V shape with wood pattern,analyzes the PLA model of surface roughness,hardness,yield strength,elastic modulus and volume shrinkage performance of V method casting process,the test surface of FDM print PLA model can satisfy the requirement of V method casting process,not only ensure the casting dimension accuracy and surface quality,and reduces the difficulty of mold making,shorten the mould processing cycle,reduces the cost of materials,the method has good application prospect.

关 键 词：FDM V法模具 PLA 尺寸精度 表面粗糙度 

分 类 号：TG241[金属学及工艺—铸造]