铺层取向对光敏树脂固化快速成型构件力学性能影响.pdf

第44卷第3期
塑料工业
111
2016年3月
CHINA PLASTICS INDUSTRY
铺层取向对光敏树脂固化快速成型构件力学性能影响”
郭辰光'2,李威力,李源,谢华龙
(1.辽宁工程技术大学机械工程学院,辽宁阜新1230002.东北大学先进制造与自动化技术研究所,辽宁沈阳110819)
摘要:材料的各向异性是影响光敏树脂固化快速成型构件力学性能与工业应用的重要因素。针对光敏树脂固化快
速成型中的DM9895光敏树脂类橡胶材料、DM8505光敏树脂刚性材料以及 Abslike光敏树脂类丙烯腈-丁二烯一苯乙
烯共聚物材將,开展不同铺层方向光固成型拉伸试件的力学测试实验,探讨铺层方向对光敏树脂固化快速成型构件力
学性能的影响。研究表明:随着光固化增材制备过程铺层方向角度递增,构件拉伸强度与拉伸断裂能呈递增趋勢。
A Bslike光敏树脂光固化成型构件力学性能最优,可直接作为承载构件实现工业应用。
关键词:光固成型;光敏树脂;铺层方向;拉伸强度;断裂能
doi:10.3969/ l. Issn.1005-5770.2016.03.018
中图分类号:TQ320.66
文献标识码
文章编号:1005-5770(2016)03-011-04
Influence of Different Ply Orientations on Mechanical Properties of
Rapid Prototyping Structure by Photosensitive Resin Curing
GUO Chen-guang 2, LI Wei-li, LI Yuan XIE Hua-long
(1 College of Mechanical Engineering, Liaoning Technology University, Fuxin 123000, China
2. Institute of Advanced Manufacturing and Automation Technology, Northeastern University, Shenyang 110819, China)
Abstract Material anisotropic is a vital factor of the mechanical properties and industrial application
field of photosensitive resin curing rapid prototyping components. Based on the rapid prototyping curing
materials of rubber-like resin material DM9895, rigid resin material DM8505 and acrylonitrile-butadien
styrene resin material Abslike, tensile experiments of different ply orientations specimens were carried out
and the influence of ply orientation to the mechanical properties of photosensitive resin curing rapid prototyping
specimens were investigated. The results reveal that the tensile strength and tensile fracture energy show an
increasing trend with the ply orientation angle increment by the specimen processing of photosensitive resin
curing rapid prototyping. Abslike pho sensitive resin curing rapid prototyping components have optimum
techanical properties, and can be used as a bearing member to realize the industrial application directly
Keywords: Stereo Lithography; Photosensitive Resin; Ply Orientations; Tensile Strength
Fracture Energy
目前,快速成型(RP)技术在全球范围内得载荷作用下可发生较大変形,力学性能成为制约光固
到了快速的发展,其增材制造的理念与方法对传统减化快速成型构件应用的关键因素。
材制造为主的制造产业带来了颠覆性变革。在现有快
鉴于此,诸多学者开展了光敏树脂固化快速成型
速成型技术中,光固化快速成型(SLA)技术2成熟构件的力学特性研究。刘海涛等制备了一种适合
度最高,其成型件表面质量好、成型设备自动化程度55℃下工作并以脂环族环氧、氧杂环丁烷和乙烯基
高、成型材料体系完备,已经在工业领域得到了实际瞇为主要反应性原料的光敏树脂支撑材料,对其性能
的应用]。
进行了测试。马骁勇等]利用光敏树脂固化成型技
然而,光敏树脂固化成型后制件力学性能不稳术完成了仿贝壳类试件的制备并完成其力学性能的测
定,固化收缩所导致的内应力突变,时常会使成型制试。黄晔矿等?开展了树脂叠层方向对光固成型构
件变形、翘曲、开裂,且光固化制件刚性较差,在大件表面精度及失效原因的分析。然而,不同铺层方向
*辽宁省科技计划项目资助(20131043)
作者简介:郭辰光,男,1982年生,讲师,主要从事先进制造技术研究。gchg_mneu@163.com