Abstract:In the modern automotive industry, the maintenance of the vehicle during its life cycle is increasing in importance due to both economical and environmental considerations. A new frontier is the reparation of large parts, originally made by fusion, by the addition of material. The standard technique in the field is the use of TIG welding, but in the last few years Cold Dynamic Gas Spray (CDGS) has started to show many promises in supplanting TIG repairs. The main advantage of CDGS is the absence of thermal str… Show more
“…For example, the damaged Al-based aircraft skin was repaired with CSAM as shown in Figure 15 [70]. Many patents have been applied or approved for repairing such components with CSAM [71].…”
“…For example, the damaged Al-based aircraft skin was repaired with CSAM as shown in Figure 15 [70]. Many patents have been applied or approved for repairing such components with CSAM [71]. Figure 15 Repair of damaged Al-based aircraft skin: (left) simulated sample, (middle) CSAMed pure Al deposit, (right) after surface finishing/polishing [70].…”
Section: Applications Of Cold Spray Additive Manufacturing (Csam)mentioning
Cold spray (CS) is a new solid state coating technique that has attracted considerable attention as it is quite suitable for mass production of metallic materials or metal matrix composites. More recently, cold spray additive manufacturing (CSAM) has been proposed to fabricate/repair components or produce welding joint. However, inherently deficient in ductility/plasticity of CSAMed materials limits its application. Therefore, many hybrid processes have been proposed to further explore CS, which can be grouped together as 'cold spray +' hybrid processes (laser, shot peening and friction stir processing). This review will summarise the state-of-the-art of the 'cold spray +' processes to show their abilities and their effectiveness. Recommendations for further research and development have been incorporated to help widespread the process.
“…For example, the damaged Al-based aircraft skin was repaired with CSAM as shown in Figure 15 [70]. Many patents have been applied or approved for repairing such components with CSAM [71].…”
“…For example, the damaged Al-based aircraft skin was repaired with CSAM as shown in Figure 15 [70]. Many patents have been applied or approved for repairing such components with CSAM [71]. Figure 15 Repair of damaged Al-based aircraft skin: (left) simulated sample, (middle) CSAMed pure Al deposit, (right) after surface finishing/polishing [70].…”
Section: Applications Of Cold Spray Additive Manufacturing (Csam)mentioning
Cold spray (CS) is a new solid state coating technique that has attracted considerable attention as it is quite suitable for mass production of metallic materials or metal matrix composites. More recently, cold spray additive manufacturing (CSAM) has been proposed to fabricate/repair components or produce welding joint. However, inherently deficient in ductility/plasticity of CSAMed materials limits its application. Therefore, many hybrid processes have been proposed to further explore CS, which can be grouped together as 'cold spray +' hybrid processes (laser, shot peening and friction stir processing). This review will summarise the state-of-the-art of the 'cold spray +' processes to show their abilities and their effectiveness. Recommendations for further research and development have been incorporated to help widespread the process.
“…Commonly, cold spray materials are metal materials with high plasticity, such as copper (Yin et al , 2013), aluminum (Huang et al , 2017, 2018a, 2018b), zinc (Chavan et al , 2013), nickel (Bae et al , 2012), titanium (Vidaller et al , 2015) and Fe-based alloys (Spencer and Zhang, 2011). Nowadays, cold spray technology has been widely used in the manufacture of anticorrosive coatings (Huang et al , 2017, 2018a, 2018b; Chavan et al , 2013), functional coatings/material (Hasniyati et al , 2016; Kergourlay et al ,2015; Dardona et al , 2016), additive manufacturing (Astarita et al , 2016).…”
Purpose
The deposition of particles onto a substrate during the cold spraying (CS) process relies on severe plastic deformation, so there are various micro-defects induced by insufficient deformation and severe crushing. To solve the problems, many post-treat techniques have been used to improving the quality by eliminating the micro-defects. This paper aims to help scholars and engineers in this field a better and systematic understand of CS technology by summarizing the post-treatment technologies that have been investigated recently years.
Design/methodology/approach
This review summarizes the types of micro-defects and introduces the effect of micro-defects on the properties of CS coating/additive manufactured, illustrates the post-treatment technologies and its effect on the microstructure and performances, and finally outlooks the future development trends of post-treatments for CS.
Findings
There are significant discoveries in post-treatment technology to change the performance of cold spray deposits. There are also many limitations for post-treatment methods, including improved performance and limitations of use. Thus, there is still a strong requirement for further improvement. Hybrid post-treatment may be a more ideal method, as it can eliminate more defects than a single method. The proposed ultrasonic impact treatment could be an alternative method, as it can densify and flatten the CS deposits.
Originality/value
It is the first time to reveal the influence factors on the performances of CS deposits from the perspective of microdefects, and proposed corresponding well targeted post-treatment methods, which is more instructive for improving the performances of CS deposits.
“…The most frequently applied welding processes are Plasma arc (PAW), TIG (GTAW), laser-beam (LBW), and Electron Beam Welding (EBW) [16]. Other processes, such as cold spray [17] and Thermal coating [18], have also been used. However, these approaches result in poor-quality and lead to failing parts, mainly owing to the several issues related to the high residual stresses and, consequently, distortion in the components [2].…”
The industrial importance of repair and remanufacturing processes has significantly increased over the past years, primarily due to their possible cost reductions and environmental benefits. Different techniques have been used for the development of such tasks in different areas, however, restrictions have been encountered in parts of high geometric complexity or those that require high mechanical performance. Additive Manufacturing (AM) technologies are an interesting alternative for remanufacturing, due to their advantageous mechanical properties and possible application in operations involving complex geometries. Hybrid Manufacturing (HM) technologies, which combine the advantages of AM processes with CNC machining in the same machine, have arisen as a new method that modernizes the repair and remanufacturing of metal components and offers a range of possible combinations of materials. This article addresses a remanufacturing operation that involves the use of an HM applied to an AISI 1045 component repaired with the addition of AISI 316L steel. The properties of the final parts showed the viability of the process for the remanufacturing of components of different materials and complex geometry. The parameters and strategy employed for the deposition of the additive material allowed us to obtain a piece without significant porosity, cracks, or defects. Microstructure and hardness in the sample were like those obtained in other published works. The manufacture or remanufacturing of components by the Directed Energy Deposition process employing stainless steel deposition on top of carbon steels opens a wide range of new applications. Those include the deposition and machining of complex 3D geometries
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
