Sn63Pb37熔融涂覆成形数值模拟及扫描方式对力学性能的影响

刘伟; 魏正英; 赵光喜; 姚云飞; 杜军

doi:10.7652/xjtuxb201612022

您当前的位置：

首页 >

文章列表页 >

Sn63Pb37熔融涂覆成形数值模拟及扫描方式对力学性能的影响

更新时间：2025-07-09

- Sn63Pb37熔融涂覆成形数值模拟及扫描方式对力学性能的影响
- Numerical Simulation for Sn63Pb37 Fused Coating Additive Manufacturing and Effect of Scanning Strategy on Mechanical Properties
- 西安交通大学学报 2016年50卷第12期页码：142-147+154
- 作者机构：
  
  西安交通大学机械制造系统工程国家重点实验室,西安,710049
- 作者简介：
- 基金信息：
  
  : 2016-05-11。作者简介: 刘伟(1989—),男,硕士生;魏正英(通信作者),女,教授,博士生导师。基金项目: 江苏省电力公司电力科学研究院资助项目(20140530);中国博士后科学基金资助项目(2014m560764)
- DOI：10.7652/xjtuxb201612022
  中图分类号： TG249.9
- 网络首发：2016-12-10，
  
  纸质出版：2016
- 稿件说明：
移动端阅览
刘伟, 魏正英, 赵光喜, 等. Sn63Pb37熔融涂覆成形数值模拟及扫描方式对力学性能的影响[J]. 西安交通大学学报, 2016,50(12):142-147+154.

Numerical Simulation for Sn63Pb37 Fused Coating Additive Manufacturing and Effect of Scanning Strategy on Mechanical Properties[J]. 2016, 50(12): 142-147+154.
刘伟, 魏正英, 赵光喜, 等. Sn63Pb37熔融涂覆成形数值模拟及扫描方式对力学性能的影响[J]. 西安交通大学学报, 2016,50(12):142-147+154. DOI： 10.7652/xjtuxb201612022.

Numerical Simulation for Sn63Pb37 Fused Coating Additive Manufacturing and Effect of Scanning Strategy on Mechanical Properties[J]. 2016, 50(12): 142-147+154. DOI： 10.7652/xjtuxb201612022.

摘要

针对现有增材制造技术对打印材料要求较高、成本较高、成形速率低的问题

提出了金属涂覆成形新工艺。以低熔点合金Sn63Pb37为数值模拟和实验材料

研究了涂覆成形过程的温度场及速度场

分析了数值模拟和实验中两个主要参数(基板移动速度v、涂覆头距基板初始距离H)对涂覆层尺寸的影响

并将同样参数下模拟所得涂覆层尺寸与实验件尺寸进行对比。将涂覆件制作拉伸测试件

分别测试其平行于涂覆方向和垂直于涂覆方向的抗拉强度。研究发现:数值模拟与实验所得涂覆层高度和宽度的最大误差分别为6.45%、6.51%

随基板运动速度的增加

仿真与实验件的高度和宽度均呈下降趋势; 当初始距离在1.2 mm以下时

随H的增加

仿真与实验件的高度与宽度均增加

且增加速度较快

当H大于1.2 mm时

趋于平稳; 涂覆成形件平行于涂覆方向和垂直于涂覆方向的抗拉强度均高于原铸件

其中平行于涂覆方向的抗拉强度最大

达到46.63 MPa

比铸件高出30.49%; 平行于涂覆方向较垂直于涂覆方向的韧窝密且深

从而平行于涂覆方向的抗拉强度要高于垂直于涂覆方向的抗拉强度。

Abstract

A new process of fused coating additive manufacturing is proposed to solve the problems of high requirements for printed materials

high cost and low manufacturing efficiency in the traditional additive manufacturing. Considering low melting point alloys Sn63Pb37 as the experimental material

the temperature field and flow field of coating are numerically investigated. The effects of two main parameters

substrate velocity and distance from the substrate to coating head

on the width and height of coating parts are also discussed. The obtained size of the coating parts is compared with that of the experimental one. The experimental specimens are prepared for tensile testing to evaluate their tensile strength parallel and perpendicular to the scanning path

respectively. The deviations of the height and the width of the coating parts between numerical simulation and experiment get 6.45% and 6.51% respectively. With the increase in velocity of the substrate

the heights and widths from simulation and experiment decrease. With the increase in initial distance H

the heights and widths increase rapidly

and the increasing rate tends stable as H>1.2 mm. The tensile strength of the coating parts parallel and perpendicular to the scanning path gets higher than the tensile strength of the raw materials

especially in the direction parallel to the scan path

it reaches the maximum 46.63 MPa

and 30.49% higher than that of casting. The dimples are denser and deeper in the direction parallel to the scanning path than in perpendicular direction

thus the tensile strength in the direction parallel to the scan path is superior to that in perpendicular direction.

关键词

Keywords

references

卢秉恒, 李涤尘. 增材制造(3D打印)技术发展 [J]. 机械制造与自动化, 2013, 42(4): 1-4.

LU Bingheng, LI Dichen. Development of the additive manufacturing(3D printing)technology [J]. Machine Building & Automation, 2013, 42(4): 1-4.

张学军, 唐思熠, 肇恒跃, 等. 3D打印技术研究现状和关键技术 [J]. 材料工程, 2016, 44(2): 122-128.

ZHANG Xuejun, TANG Siyi, ZHAO Hengyue, et al. Research status and key technologies of 3D printing [J]. Journal of Materials Engineering, 2016, 44(2): 122-128.

SIMCHI A, PETZOLDT F, POHL H. On the development of direct metal laser sintering for rapid tooling [J]. Journal of Materials Processing Technology, 2003, 141(3): 319-328.

KRUTH J P, FROYEN L, VAN VAERENBERGH J, et al. Selective laser melting of iron-based powder [J]. Journal of Materials Processing Technology, 2004, 149(1): 616-622.

ORME M, LIU Q, SMITH R. Molten aluminum micro-droplet formation and deposition for advanced manufacturing applications [J]. Aluminum Transactions, 2000, 3(1): 95-103.

LUO J, QI L H, ZHOU J M, et al. Modeling and characterization of metal droplets generation by using a pneumatic drop-on-demand generator [J]. Journal of Materials Processing Technology, 2012, 212(3): 718-726.

LONG R S, SUN S N, LIAN Z S. The influence of scanning methods on the cracking failure of thin-wall metal parts fabricated by laser direct deposition shaping [J]. Engineering Failure Analysis, 2016, 59: 269-278.

BAUFELD B, BIEST O V D, GAULT R. Additive manufacturing of Ti-6Al-4V components by shaped metal deposition: microstructure and mechanical properties [J]. Materials Design, 2010, 31(1): S106-S111.

SAHA A A, MITRA S K. Effect of dynamic contact angle in a volume of fluid(VOF)model for a microfluidic capillary flow [J]. Journal of Colloid Interface Science, 2009, 339(2): 461-480.

AFKHAMI S, ZALESKI S, BUSSMANN M. A mesh-dependent model for applying dynamic contact angles to VOF simulations [J]. Journal of Computational Physics, 2009, 228(15): 5370-5389.

ERKAN N, KAWAKAMI T, MADOKORO H, et al. Numerical simulation of droplet deposition onto a liquid film by VOF-MPS hybrid method [J]. Journal of Visualization, 2015, 18(2): 381-391

RATHGEBER C, MIRÓ L, CABEZA L F, et al. Measurement of enthalpy curves of phase change materials via DSC and T-history: when are both methods needed to estimate the behaviour of the bulk material in applications? [J]. Thermochimica Acta, 2014, 596: 79-88.

DELFS J O, WANG W, KALBACHER T, et al. A coupled surface/subsurface flow model accounting for air entrapment and air pressure counterflow [J]. Environmental Earth Sciences, 2013, 69(2): 395-414.

MEHDINEJAD V, MOSTAGHIMI J, CHANDRA S. Air bubble entrapment under an impacting droplet [J]. Physics of Fluids, 2003, 15(1): 173-183.

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

不同扫描模式下中子源锂靶温度场的数值模拟

化学液相沉积法制备碳/碳复合材料时的温度场研究

带电压反馈智能接触器的热分析模型

液化天然气冷藏车冷量回收理论与稳态实验研究

低温闪蒸气压缩机气缸温度场的有限元分析