摘要
在砂型喷墨打印增材制造过程中,铺粉质量是直接影响打印成形件性能的重要因素之一。为了更加客观地评价铺粉效果,提出用铺设砂层表面轮廓均方根偏差作为铺粉质量的表征参数,对铺粉质量进行量化分析。研究了铺粉速度、固化剂添加量以及粉末粒径3个因素对铺粉质量的影响规律。结果表明,在固化剂添加量≤0.6%的情况下,铺粉速度对铺粉质量的影响较小,优先选用150μm和74μm粉末,可以获得较好的铺粉质量。
In the additive manufacturing process of sand mold inkjet printing, the laying powder~ quality is one of the important factors on the performance of the printing parts. In order to evaluate the powder laying quality objectively, the root mean square deviation of the surface profile of laying powder was proposed as the characteljzation parameter, and the powder laying quality was analyzed quantitatively. The effects of the powder laying velocity, the curing agent content and the particle size of powder on the powder laying quality were investigated. The results show that the powder laying velocity has little effect on the laying powder quality when the curing agent content is less than 0.6%, a better powder laying quality can obtain by first selecting 150 μm or 74 μm powders.
作者
赵蒙蒙
刘丰
张肖男
郭智
ZHAO Mengmeng1, LIU Feng1, ZHANG Xiaonan1, GUO ZHi1,2(1. State Key Laboratory of Advanced Forming Technology and Equipment, China Academy of Machinery Science and Technology, B eijing 100044, China; 2. Department of Mechanical Engineering, Tsinghna University, Beijing 100084, China)
出处
《铸造技术》
CAS
2018年第10期2296-2299,共4页
Foundry Technology
基金
国家杰出青年科学基金项目(51525503)
关键词
砂型喷墨打印
铺粉质量
表面轮廓均方根偏差
sand mold inkjet printing
laying powder quality
the root mean square deviation of surface profile
