3D打印速度对铸造蜡成型翘曲变形的影响

莫海军; 梁道明; 林晨彬; 刘翔

doi:10.12141/j.issn.1000-565X.230360

华南理工大学学报(自然科学版) >

2024 , Vol. 52 >Issue 6: 81 - 88

DOI: https://doi.org/10.12141/j.issn.1000-565X.230360

机械工程

3D打印速度对铸造蜡成型翘曲变形的影响

莫海军 ,
梁道明 ,
林晨彬 ,
刘翔

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华南理工大学机械与汽车工程学院，广东广州 510640

莫海军（1966—），男，博士，副教授，主要从事增材制造技术研究。E-mail： mohj@scut.edu.cn

收稿日期: 2023-05-26

网络出版日期: 2024-01-26

基金资助

广东省科技创新专项资金资助项目(2019G011)

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Effect of 3D Printing Speed on Warpage Deformation of Casting Wax Forming

MO Haijun ,
LIANG Daoming ,
LIN Chenbin ,
LIU Xiang

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School of Mechanical and Automotive Engineering，South China University of Technology，Guangzhou 510640，Guangdong，China

Received date: 2023-05-26

Online published: 2024-01-26

Supported by

the Guangdong Science and Technology Innovation Special Fund Funding Project(2019G011)

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摘要

通过快速模具制造可打印熔模铸造用的蜡模，缩短生产周期，提高生产效率。但在实际成型过程中，由于制件不同位置的温度分布不均，会造成内应力差异，导致制件翘曲变形，进而对制件的成型质量产生较大的影响；而且，受3D打印速度和沉积层数等成型参数的制约，较难在降低制件翘曲变形程度的同时提高成型效率。有鉴于此，文中通过建立成型制件翘曲变形的数学模型，并结合实验设计与数学计算等方法，探究打印速度对铸造蜡直写成型翘曲变形程度与打印效率的影响机制。实验结果显示：在一定打印速度下，试样翘曲值随沉积层数的增加而减小，且随着打印速度的不断增加翘曲值逐渐变大；成型打印速度越高，不同试样的打印耗时越接近于某一稳定值，表明打印速度对成型效率的影响随打印速度的增加而降低。文中还通过对成型翘曲变形和打印效率分别赋予权重系数，建立了表面轮廓最佳打印速度连续函数模型，并验证了模型的有效性。研究结果表明，基于铸造蜡成型翘曲变形建立的最佳打印速度连续函数模型可在降低翘曲变形的同时提高打印效率。

关键词： 熔模铸造; 翘曲变形; 3D打印速度; 权重系数; 函数模型

本文引用格式

莫海军 , 梁道明 , 林晨彬 , 刘翔 . 3D打印速度对铸造蜡成型翘曲变形的影响[J]. 华南理工大学学报(自然科学版), 2024 , 52(6) : 81 -88 . DOI: 10.12141/j.issn.1000-565X.230360

Abstract

Rapid mold manufacturing can be used to print wax molds for investment casting, shorten the production cycle and improve the production efficiency. However, in the actual forming process, due to the uneven temperature distribution in different positions of the workpiece, the internal stress will be different, which may result in warping deformation, and then have a significant impact on the forming quality of the workpiece. Moreover, due to the constraints of forming parameters such as 3D printing speed and deposition layers’ number, it is difficult to reduce the degree of warping deformation of the workpiece and improve the forming efficiency simultaneously. To solve this problem, this paper establishes a mathematical model for the warping deformation of formed parts, and combines experimental design and mathematical calculation methods to explore the influence mechanism of printing speed on the degree of warping deformation and printing efficiency of casting wax direct writing. Experimental results show that, at a certain printing speed, the warpage value decreases with the increase of the number of deposition layers, while gradually increases with the continuous increase of printing speed; and that the higher the printing speed, the closer the printing time of different samples is to a certain stable value, which means that the impact of printing speed on the forming efficiency decreases with the increase of printing speed. In addition, by assigning weight coefficients respectively to the forming warping deformation and the printing efficiency, a continuous function model for the optimal printing speed of surface contours is established, and the effectiveness of the model is verified. The results show that the continuous function model of optimal printing speed based on the warping deformation of casting wax can simultaneously reduce the warping deformation and improve the printing efficiency.

Key words： investment casting; warping deformation; 3D printing speed; weight coefficient; function model

参考文献

1	TIM F， STEFANIE K， MARKUS T ．Characterisation of fused deposition modeling 3D printers for pharmaceutical and medical applications［J］．Pharmaceutical Development and Technology，2018，23（10）：1-33．
2	MELOCCHI A， PARIETTI F， MARONI A，et al ．Hotmelt extruded filaments based on pharmaceutical grade polymers for 3D printing by fused deposition modeling［J］．International Journal of Pharmaceutics，2016，509（1/2）：255-263．
3	BULANDA K， OLEKSY M， OLIWA R，et al ．Biodegradable polymer composites used in rapid prototyping technology by melt extrusion polymers［J］．Polimery，2020，65（6）：430-436．
4	CHOE C M， SOK S H， RI W S，et al ．Manufacture of plaster core mold for large oxygen plant components using fused deposition modeling （FDM）［J］．International Journal of Metalcasting，2021，15（4）：1-7．
5	练健．熔模铸造用蜡模3D打印工艺研究［D］．南京：南京理工大学，2021．
6	闫存富，乔雪涛，郭晓红，等．基于熔融沉积成型3D打印翘曲变形的工艺参数优化［J］．工程塑料应用，2021，49（12）：77-80．
	YAN Cunfu， QIAO Xuetao， GUO Xiaohong，et al ．Optimization of process parameters based on warpage deformation of 3D printing based on fused deposition molding［J］．Engineering Plastics Application，2021，49（12）：77-80．
7	吴彦之，侯和平，徐卓飞，等．熔融沉积成型喷头系统的研究进展［J］．中国塑料，2019，33（9）：116-124．
	WU Yanzhi， HOU Heping， XU Zhuofei，et al ．Research progress of fused deposition molding nozzle system［J］．China Plastics，2019，33（9）：116-124．
8	CHOHAN J S， SINGH R， BOPARAI K S，et al ．Dimensional accuracy analysis of coupled fused deposition modeling and vapour smoothing operations for biomedical applications［J］．Composites Part B：Engineering，2017，117：138-149．
9	SINGH K ．Experimental study to prevent the warping of 3D models in fused deposition modeling［J］．International Journal of Plastics Technology，2018，22（1）：177-184．
10	余瑾，杨冰倩，杨国法，等．熔模铸造石蜡-地蜡系中温模料配方优化研究［J］．铸造技术，2015，36（9）：2315-2317．
	YU Jin， YANG Bingqian， YANG Guofa，et al ．Study on formulation optimization of medium temperature mold for investment casting paraffin-ozokerite［J］．Foundry Technology，2015，36（9）：2315-2317．
11	MUSLIM M， ESSAM S， HAZRAT A M ．Process parameter optimization for 3D printed investment casting wax pattern and its post-processing technique［J］．Applied Sciences，2022，12（14）：6847．
12	莫海军，王顺栋，梁道明．直写铸造蜡沉积成型数值模拟分析与实验［J］．机床与液压，2022，50（23）：61-69．
	MO Haijun， WANG Shundong， LIANG Daoming ．Numerical simulation analysis and experiment of direct writing casting wax deposition molding［J］．Machine Tool & Hydraulics，2022，50（23）：61-69．
13	BOSCHETTO A， BOTTINI L ．Triangular mesh offset aiming to enhance fused deposition modeling accuracy［J］．The International Journal of Advanced Manufacturing Technology，2015，80（1/2/3/4）：99-111．
14	ANDI W， SUOYUAN S， QIANG H，et al ．In-plane shape-deviation modeling and compensation for fused deposition modeling processes［J］．IEEE Transactions on Automation Science and Engineering，2017，14（2）：968-976．
15	GAO R X， XIE J， YANG J H，et al ．Research on the fused deposition modeling of polyether ether ketone［J］．Polymers，2021，13（14）：2344．
16	桑鹏飞，刘凯，王扬威．熔融沉积成型中的原型翘曲变形分析［J］．机械设计与研究，2015，31（3）：118-120，124．
	SANG Pengfei， LIU Kai， WANG Yangwei ．Warpage deformation analysis of prototypes in fused deposition molding［J］．Mechanical Design and Research，2015，31（3）：118-120，124．
17	ARMILLOTTA A， CAVALLARO M ．Edge quality in fused deposition modeling：I. Definition and analysis［J］．Rapid Prototyping Journal，2017，23（6）：1079-1087．
18	TAUFIK M， JAIN K P ．A study of build edge profile for prediction of surface roughness in fused deposition modeling［J］．Journal of Manufacturing Science and Engineering，2016，138（6）：1115-1125．
19	莫海军，梁道明，林晨彬．基于气压驱动的蜡模3D打印成形精度研究［J］．特种铸造及有色合金，2023，43（2）：185-190．
	MO Haijun， LIANG Daoming， LIN Chenbin ．Research on the precision of wax pattern 3D printing based on air pressure drive［J］．Special Casting and Nonferrous Alloys，2023，43（2）：185-190．
20	王顺栋．铸造蜡气动挤出直写成型的关键技术与实验研究［D］．广州：华南理工大学，2022．
21	陈松茂，陈宇林．填充速度对制件拐角轮廓部位熔融沉积精度与打印效率的影响［J］．华南理工大学学报（自然科学版），2021，49（6）：1-8．
	CHEN Songmao， CHEN Yulin ．Effect of filling speed on fused deposition accuracy and printing efficiency at corner contour of parts［J］．Journal of South China University of Technology （Natural Science Edition），2021，49（6）：1-8．

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