A Review on Wire Arc Additive Manufacturing: Effect of Process Parameters on the Build Material Properties

2021 ◽  
pp. 247-255
Author(s):  
Meet Gor ◽  
Harsh Soni ◽  
Gautam Singh Rajput ◽  
Honey Shah ◽  
Pankaj Sahlot
Keyword(s):  
Additive Manufacturing ◽  
Process Parameters ◽  
Material Properties ◽  
Wire Arc Additive Manufacturing

scholarly journals Monotonic and Fatigue Properties of Steel Material Manufactured by Wire Arc Additive Manufacturing

2020 ◽  
Vol 10 (15) ◽  
pp. 5238 ◽  
Author(s):  
Michael Wächter ◽  
Marcel Leicher ◽  
Moritz Hupka ◽  
Chris Leistner ◽  
Lukas Masendorf ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
Material Properties ◽  
Elevated Temperatures ◽  
Tensile Tests ◽  
Fatigue Properties ◽  
Practical Applications ◽  
Steel Material ◽  
Characteristic Values ◽  
The One ◽  
Wire Arc Additive Manufacturing

In this study, the monotonic and cyclic material properties of steel material of medium static strength produced additively in the wire arc additive manufacturing (WAAM) process were investigated. This investigated material is expected to be particularly applicable to the field of mechanical engineering, for which practical applications of the WAAM process are still pending and for which hardly any characteristic values can be found in the literature so far. The focus of the investigation was, on the one hand, to determine how the material characteristics are influenced by the load direction in relation to the layered structure and, on the other hand, how they are affected by different interlayer temperatures. For this purpose, monotonic tensile tests were carried out at room temperature as well as at elevated temperatures, and the cyclic material properties were determined. In addition, the hardness of the material and the residual stresses induced during production were measured and compared. In addition to the provision of characteristic properties for the investigated material, it was aimed to determine the extent to which the interlayer temperature influences the strength characteristics, since this can have a considerable influence on the production times and, thus, the economic efficiency of the process.

scholarly journals Optimization of Cold Metal Transfer-Based Wire Arc Additive Manufacturing Processes Using Gaussian Process Regression

Metals ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 461
Author(s):  
Seung Hwan Lee
Keyword(s):  
Additive Manufacturing ◽  
Gaussian Process ◽  
Process Parameters ◽  
Gaussian Process Regression ◽  
Effective Area ◽  
Raw Material ◽  
Cold Metal Transfer ◽  
High Productivity ◽  
Multiple Variables ◽  
Wire Arc Additive Manufacturing

Wire and arc additive manufacturing (WAAM) is among the most promising additive manufacturing techniques for metals because it yields high productivity at low raw material costs. However, additional post-processing is required to remove redundant surface material from components manufactured by the WAAM process, and thus the productivity decreases. To increase productivity, multi-variable process parameters need to be optimized, including thermo-mechanical effects caused by high deposition rates. When the process is modeled, deposit shape and productivity are challenging to quantify due to uncertainty in multiple variables of the complicated WAAM process. Therefore, we modeled the WAAM process parameters, including uncertainties, using a Gaussian process regression (GPR) method, thus allowing us to develop a WAAM optimization model to improve both productivity and the quality of the deposit shape. The accuracy of the optimized output was verified through a close agreement with experimental values. The optimized deposited material had a wide effective area ratio, small height differences, and near 90° deposition angle, highlighting the usefulness of the GPR model approach to deposit nearly ideal material shapes.

scholarly journals Effects of Material Properties on Angular Distortion in Wire Arc Additive Manufacturing: Experimental and Computational Analyses

Materials ◽  
2020 ◽  
Vol 13 (6) ◽  
pp. 1399
Author(s):  
Sang-Cheol Park ◽  
Hee-Seon Bang ◽  
Woo-Jae Seong
Keyword(s):  
Additive Manufacturing ◽  
Material Properties ◽  
Heat Input ◽  
Coefficient Of Thermal Expansion ◽  
Angular Distortion ◽  
Substrate Thickness ◽  
Deformation Characteristics ◽  
Temperature Dependent ◽  
Temperature Dependent Properties ◽  
Wire Arc Additive Manufacturing

In wire arc additive manufacturing (AM), as in arc welding, arc heat thermally deforms substrates and articles. For industrial applications, deformation characteristics of various materials must be understood and appropriate materials and methods of reducing deformation must be devised. Therefore, angular distortions of different materials were investigated through bead-on-plate welding and finite element analysis. A model that simplifies temperature-dependent properties was developed to establish relationships between thermomechanical properties and angular distortion. A simplified model of temperature-dependent properties was used, and angular distortion characteristics were extensively investigated for different material properties and heat inputs. Coefficient of thermal expansion, density, and specific heat all notably affected angular distortion depending on heat input conditions. Results showed that during wire arc AM, flatness of both substrates and articles could vary depending on material properties, heat input, substrate thickness, and bead accumulation. Study findings can provide insight into deformation characteristics of new materials and how to mitigate thermal distortions.

scholarly journals Selection of Optimal Process Parameters for Wire Arc Additive Manufacturing

Procedia CIRP ◽  
2017 ◽  
Vol 62 ◽  
pp. 470-474 ◽  
Author(s):  
Mariacira Liberini ◽  
Antonello Astarita ◽  
Gianni Campatelli ◽  
Antonio Scippa ◽  
Filippo Montevecchi ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
Process Parameters ◽  
Optimal Process ◽  
Wire Arc Additive Manufacturing ◽  
Selection Of

Binder Jetting Additive Manufacturing of Ceramics: A Literature Review

2017 ◽  
Author(s):  
Wenchao Du ◽  
Xiaorui Ren ◽  
Chao Ma ◽  
Zhijian Pei
Keyword(s):  
Additive Manufacturing ◽  
Literature Review ◽  
Process Parameters ◽  
Material Properties ◽  
Raw Materials ◽  
High Hardness ◽  
Ceramic Materials ◽  
Future Research ◽  
Binder Jetting ◽  
Resultant Material

Ceramic materials are more difficult to process than metals and polymers using additive manufacturing technologies because of their high melting temperature, high hardness and brittleness. Binder jetting additive manufacturing has been used to fabricate ceramic parts for various applications. This paper presents a literature review on recent advances in ceramic binder jetting. The paper begins with listing applications and material properties investigated in reported studies followed by the effects of raw materials and process parameters on resultant material properties. Raw materials include binder (material, application method, concentration, and saturation) and ceramic feedstock (preparation method, quality metrics, and particle size and shape), and process parameters include layer thickness and postprocessing method. Resultant material properties of interest include density, strength, hardness, and toughness. This review will provide guidance for the selection of raw materials and process parameters to obtain desired material properties for various applications. This paper is concluded by proposing future research directions.

scholarly journals Material Properties of Features Produced from EN AW 6016 by Wire-Arc Additive Manufacturing

2020 ◽  
Vol 47 ◽  
pp. 1129-1133 ◽  
Author(s):  
Ismail Ünsal ◽  
Markus Hirtler ◽  
Alexander Sviridov ◽  
Markus Bambach
Keyword(s):  
Additive Manufacturing ◽  
Material Properties ◽  
Wire Arc Additive Manufacturing
Sign in / Sign up

Export Citation Format

Share Document