相关实验视频

Updated: May 2, 2026

Production of Single Tracks of Ti-6Al-4V by Directed Energy Deposition to Determine the Layer Thickness for Multilayer Deposition

Production of Single Tracks of Ti-6Al-4V by Directed Energy Deposition to Determine the Layer Thickness for Multilayer Deposition

Published on: March 13, 2018

电缆弧增材制造部件的扭曲分析方法使用热力学计算与增强分离和沉积算法

Keval P Prajadhiana^1,2, Thoufeili Taufek^1,2, Wan Emri Wan Abdul Rahaman²

¹Smart Manufacturing Research Institute, UiTM Shah Alam, Selangor, Malaysia.

3D printing and additive manufacturing

|October 3, 2024

概括

本研究分析了线弧增材制造 (WAAM) 组件在基板被移除后的变形. 新的热力学模拟方法准确地预测了扭曲,在薄壁不钢结构中实现了高精度.

科学领域:

制造业工程制造工程
材料科学材料科学材料科学
计算力学计算力学计算力学

背景情况:

电弧增材制造 (WAAM) 是生产大型金属元件的关键技术.
对于质量控制来说,了解和预测基板移除后WAAM部件的变形至关重要.
现有的方法可能无法完全捕捉到所涉及的复杂热力学现象.

研究的目的:

通过数值和实验分析基板去除后空洞,矩形薄壁组件的变形.
开发和验证一个热力学有限元模型,用于预测WAAM诱导的扭曲.
评估一种新的扭曲分析方法的准确性,该方法结合了先进的材料特性和基板移除算法.

主要方法:

使用戈达克的双圆形热源模型和-米塞斯产量标准进行热力学有限元素分析.
模拟软件 (Simufact.Welding 2021) 具有分离和沉积算法用于基板去除.
基于SS316L化学组成的先进材料建模 (JMATPRO).
使用机器人GMAW,基板加工和3D激光扫描进行扭曲测量的实验验证.

主要成果:

数值模型成功地预测了基板移除后的组件变形.
试验测量扭曲的结果与模拟结果进行了比较.
开发的方法实现了0.05和2.16毫米之间的表面偏差.
点向和平均误差百分比处于可以接受的范围内 (高达3%).

结论:

使用热力学数值计算的新型扭曲分析方法对于预测WAAM组件变形是有效的.
精确的材料特性和精细的基质去除算法对于可靠的模拟结果至关重要.
该研究在预测垂直表面偏差方面表现出很高的准确性,验证了该方法.

关键词:

这是一个模拟事实.这就是WAAMAM WAAM.扭曲的组件是扭曲的组件.数字计算的数值计算方式

更多相关视频

Surrogate Model Development for Digital Experiments in Welding

Surrogate Model Development for Digital Experiments in Welding

Published on: March 28, 2025

Automatic Laser-based Geometry Capture for Finite Element Analysis of Weld Beads

Automatic Laser-based Geometry Capture for Finite Element Analysis of Weld Beads

Published on: July 25, 2025

相关概念视频

Thermal expansion and Thermal stress: Problem Solving

Thermal expansion and Thermal stress: Problem Solving

San Francisco's Golden Gate Bridge is exposed to temperatures ranging from -15 °C to 40 °C. At its coldest, the main span of the bridge is 1275 m long. Assuming that the bridge is made entirely of steel, what is the change in its length between these temperatures?
To solve the problem, first, identify the known and unknown quantities. The initial length (L) of the bridge is 1275 m, the coefficient of linear expansion (α) for steel is 12 x 10-6/°C, and the change in temperature (ΔT) is 55...

Deformation of Member under Multiple Loadings

Deformation of Member under Multiple Loadings

When a rod is made of different materials or has various cross-sections, it must be divided into parts that meet the necessary conditions for determining the deformation. These parts are each characterized by their internal force, cross-sectional area, length, and modulus of elasticity. These parameters are then used to compute the deformation of the entire rod.
In the case of a member with a variable cross-section, the strain is not constant but depends on the position. The deformation of an...

Temperature Dependent Deformation

Temperature Dependent Deformation

In a nonhomogeneous rod made up of steel and brass, restrained at both ends and subjected to a temperature change, several steps are involved in calculating the stress and compressive load. Due to the problem's static indeterminacy, one end support is disconnected, allowing the rod to experience the temperature change freely. Next, an unknown force is applied at the free end, triggering deformations in the rod's steel and brass portions. These deformations are then calculated and added...