Residual Stresses in Cold Spray Additively Manufactured Hollow Titanium Cylinders

Vargas-Uscategui, Alejandro; King, Peter C.; Styles, Mark J.; Saleh, Michael; Luzin, Vladimir; Thorogood, Kevin

doi:10.1007/s11666-020-01028-3

Cited by 19 publications

(5 citation statements)

References 23 publications

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“…On the other hand, neutron diffraction penetrates the material in order of centimeters, but needs a long time exposition to achieve good results, in order of tens of minutes per measurement point [309]. Both methods are restricted to crystalline materials, and neutron diffraction has been studied for CSAM, as presented by Luzin et al [331] and Vargas-Uscategui et al [332] for Ti, Sinclair-Adamson et al [333] for Cu, Loke et al [334] for Al6061, and Boruah et al [335] for Ti6Al4V. Despite being restricted to a few facilities worldwide and being an expensive technique, neutron diffraction has presented valid results in understanding the evolution of residual stress in CSAM deposition.…”

Section: Measuring Of Propertiesmentioning

confidence: 99%

A Review of Advances in Cold Spray Additive Manufacturing

et al. 2023

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Cold Spray Additive Manufacturing (CSAM) produces freeform parts by accelerating powder particles at supersonic speed which, impacting against a substrate material, trigger a process to consolidate the CSAM part by bonding mechanisms. The literature has presented scholars’ efforts to improve CSAM materials’ quality, properties, and possibilities of use. This work is a review of the CSAM advances in the last decade, considering new materials, process parameters optimization, post-treatments, and hybrid processing. The literature considered includes articles, books, standards, and patents, which were selected by their relevance to the CSAM theme. In addition, this work contributes to compiling important information from the literature and presents how CSAM has advanced quickly in diverse sectors and applications. Another approach presented is the academic contributions by a bibliometric review, showing the most relevant contributors, authors, institutions, and countries during the last decade for CSAM research. Finally, this work presents a trend for the future of CSAM, its challenges, and barriers to be overcome.

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Section: Measuring Of Propertiesmentioning

confidence: 99%

A Review of Advances in Cold Spray Additive Manufacturing

et al. 2023

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“…However, this could be compensated for by tilting the nozzle inwards at the edges. The technique has since been used to build vertical features [23][28]. Paths along the original outer and hole contours are separated from the in ll path.…”

Section: Generating Continuous Pathmentioning

confidence: 99%

A Continuous Toolpath Strategy from Offset Contours for Robotic Additive Manufacturing

Nguyen

King²,

Vargas-Uscategui³

et al. 2022

Preprint

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Toolpath planning is an essential component of robotic additive manufacturing. An efficient toolpath strategy allows parts to be made that are geometrically accurate, free of defects, have good mechanical properties and low residual stress. Toolpaths for cold spray additive manufacturing have some technical constraints that need to be considered compared to their counterpart designed for conventional 3D printing machines. This study presents an automated toolpath planning method based on offset contours. The generated toolpath is globally continuous, layer-wise setting, making it suitable for robotic cold spray additive manufacturing. The toolpath algorithm was tested on a variety of geometries to demonstrate its robustness. One model was selected for printing using a commercial high pressure cold spray system. The experimental results show that our method is applicable to cold spray robotic additive manufacturing. The method is particularly good for web-rib structures.

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“…In contrast, the peening effect was predominant for the higher nozzle travel speed. [ 224 ] As a general guideline, increasing the nozzle's speed reduces the heat input during the process, decreases the thermal effect, and promotes the compressive residual stress. Nevertheless, in low‐melting‐point and temperature‐sensitive materials, such as magnesium and zinc alloys, cold spraying is warm enough to provide sufficient thermal energy for changing the state of stress in competition with the peening effect.…”

Section: Origins and Effectsmentioning

confidence: 99%

Residual Stress in Engineering Materials: A Review

et al. 2021

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The accurate determination of residual stresses has a crucial role in understanding the complex interactions between microstructure, mechanical state, mode(s) of failure, and structural integrity. Moreover, the residual stress management concept contributes to industrial applications, aiming to improve the product's service performance and life cycle. In this regard, the industry requests rapid, efficient, and modern methods to identify and control the residual stress state. This review article contains three main sections. The first section covers different residual stress determination methods and reports the advancements over the recent decade. The second section includes the role of residual stresses in the performance of a broad range of materials including metallic alloys, polymers, ceramics, composites, and biomaterials. This is presented by classifying different science areas dealing with residual stresses into two main groups, including “origins” and “effects” of residual stresses. The range of topics covered are “welding, machining, curing/cooling, and spray coating processes,” “medical and dental sciences,” and “fatigue and fracture mechanisms.” The third section summarizes various strategies to effectively control residual stresses through different manufacturing procedures. It is hoped that the data provided herein serves as a valuable up‐to‐date reference for engineers and scientists in the field of residual stress.

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Residual Stresses in Cold Spray Additively Manufactured Hollow Titanium Cylinders

Cited by 19 publications

References 23 publications

A Review of Advances in Cold Spray Additive Manufacturing

A Review of Advances in Cold Spray Additive Manufacturing

A Continuous Toolpath Strategy from Offset Contours for Robotic Additive Manufacturing

Residual Stress in Engineering Materials: A Review

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