增强3D打印：打造坚实与轻盈并存的物体

35 浏览量更新于2024-08-26 收藏 889KB PDF 举报

"最终构建：增强3D打印对象重量的实力" 这篇研究论文，"Build-to-Last: Strength to Weight 3D Printed Objects"由Lu、Sharf、Zhao等人于2014年发表在ACM Transactions on Graphics (Volume 33, Issue 4, Article 97)上，探讨了如何提升3D打印物体的强度与重量比例，以实现更耐用且轻量化的3D打印制品。研究者们关注的是3D打印技术在设计和制造过程中如何优化结构，以确保其在承受负载时具备足够的强度，同时减轻重量。 3D打印技术近年来发展迅速，但其制品的力学性能往往受到材料和打印工艺的限制。这篇论文提出了一种新的方法，通过对3D打印模型进行内部结构优化，增强其内在的支撑结构，从而在保持物体外观不变的情况下提高其强度。这种方法对于需要考虑重量和性能平衡的领域，如航空航天、汽车工业和生物医学应用，具有重要的意义。论文中可能涉及的关键技术包括结构优化算法和拓扑优化，这些方法能够生成内部的网格或蜂窝状结构，以提供额外的支撑并降低材料的使用。通过使用这些算法，3D打印对象可以实现自支撑，减少对外部支撑结构的依赖，从而降低制造成本并提高打印效率。此外，论文可能还讨论了材料选择对3D打印物体性能的影响，以及如何通过调整打印参数（如层厚、填充密度和打印速度）来优化物体的机械特性。作者可能还进行了实验验证，对比了优化前后的3D打印物体在负载测试下的表现，以证明其方法的有效性。这篇研究论文深入研究了如何在3D打印过程中结合结构工程原理，以提高物体的强度重量比，为3D打印技术在工程应用中的进一步发展提供了理论支持和技术参考。通过这些创新方法，3D打印不仅可以制作出具有复杂形状的物体，还能确保这些物体在实际使用中具备良好的耐久性和功能性。

ACM Reference Format

Lu, L., Sharf, A., Zhao, H., Wei, Y., Fan, Q., Chen, X., Savoye, Y., Tu, C., Cohen-Or, D., Chen, B. 2014.

Build-to-Last: Strength to Weight 3D Printed Objects. ACM Trans. Graph. 33, 4, Article 97 (July 2014), 10

pages. DOI = 10.1145/2601097.2601168 http://doi.acm.org/10.1145/2601097.2601168.

Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted

without fee provided that copies are not made or distributed for proﬁ t or commercial advantage and that

copies bear this notice and the full citation on the ﬁ rst page. Copyrights for components of this work owned

by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish,

to post on servers or to redistribute to lists, requires prior speciﬁ c permission and/or a fee. Request permis-

sions from permissions@acm.org.

DOI: http://doi.acm.org/10.1145/2601097.2601168

Build-to-Last: Strength to Weight 3D Printed Objects

Lin Lu

1∗

Andrei Sharf

Haisen Zhao

Yuan Wei

Qingnan Fan

Xuelin Chen

Yann Savoye

Changhe Tu

Daniel Cohen-Or

Baoquan Chen

1†

Shandong University

Ben-Gurion University

Tel Aviv University

Figure 1: We reduce the material of a 3D kitten (left), by carving porous in the solid (mid-left), to yield a honeycomb-like interior structure

which provides an optimal strength-to-weight ratio, and relieves the overall stress illustrated on a cross-section (mid-right). The 3D printed

hollowed solid is built-to-last using our interior structure (right).

Abstract

The emergence of low-cost 3D printers steers the investigation of

new geometric problems that control the quality of the fabricated

object. In this paper, we present a method to reduce the material

cost and weight of a given object while providing a durable printed

model that is resistant to impact and external forces.

We introduce a hollowing optimization algorithm based on the

concept of honeycomb-cells structure. Honeycombs structures are

known to be of minimal material cost while providing strength

in tension. We utilize the Voronoi diagram to compute irregular

honeycomb-like volume tessellations which deﬁne the inner struc-

ture. We formulate our problem as a strength–to–weight optimiza-

tion and cast it as mutually ﬁnding an optimal interior tessellation

and its maximal hollowing subject to relieve the interior stress.

Thus, our system allows to build-to-last 3D printed objects with

large control over their strength-to-weight ratio and easily model

various interior structures. We demonstrate our method on a col-

lection of 3D objects from different categories. Furthermore, we

evaluate our method by printing our hollowed models and measure

their stress and weights.

CR Categories: I.3.5 [Computer Graphics]: Computational Ge-

ometry and Object Modeling—Curve, surface, solid, and object

representations;

Keywords: 3D printing technologies, solid object hollowing,

porous structure design, volume-Voronoi shape

∗

e-mail:lulin.linda@gmail.com

†

e-mail:baoquan.chen@gmail.com

Links: DL PDF

1 Introduction

Recent years have seen a growing interest in 3D printing technolo-

gies, capable of generating tangible solid objects from their digital

representation. Typically, physically printed objects are built by

successively stacking cross-section layers of powder-based mate-

rial. Layers are generated through fused-deposition modeling and

liquid polymer jetting. Hence, the production cost of the result-

ing model is directly related to the volume of material effectively

employed in the printing process. In turn, this can be a costly oper-

ation for large and complex models. To mitigate this, few methods

have recently focused on the problem of designing cost effective

3D shapes by reducing their interior material. In their recent work,

Wang et al. [2013] introduce one of the ﬁrst cost-effective printing

strategies using skin frame structures to support the shape’s interior.

Recent material-aware 3D printing techniques [Stava et al. 2012;

evost et al. 2013; Zhou et al. 2013; Umetani and Schmidt 2013]

describe object breakability, stress and fatigue-related collision as

challenging issues that are very important to handle for 3D printing.

Our work draws inspiration from the Voronoi structure. Given a

ACM Transactions on Graphics, Vol. 33, No. 4, Article 97, Publication Date: July 2014

下载后可阅读完整内容，剩余9页未读，立即下载

weixin_38692707

粉丝: 8
资源: 901

增强3D打印：打造坚实与轻盈并存的物体

3D打印源码 3D引擎源码

转变运输模式：理解3D打印对全球运输业的影响.pdf

Java3D入门：构建Java平台3D显示与接口应用

CUBE8光立方：简易3D显示器的创新设计

C#编程：Codesoft模板打印实战

保研笔记：C++与面向对象基础，涵盖数据结构与网络

LVGL对象详解：构建用户界面的核心

3D打印技术详解：起源、应用与发展

3D打印LOM技术：精度与材料选择详解

探索3D打印中的计算机图形学：创新与应用

最新资源