Dimensional and Shape Accuracy of Foundry Patterns Fabricated Through Photo-Curing

doi:10.17559/tv-20181109115954

Cited by 14 publications

(10 citation statements)

References 22 publications

(26 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Rapid prototyping of tools used in conventional production technologies such as machining, casting [10][11][12], or injection moulding allows for immediate subsequent printing necessary after testing. Moreover, additive technologies enhance optimization of production and enable fast adaptation of new solutions.…”

Section: D Printingmentioning

confidence: 99%

The Influence of Printing Orientation on Surface Texture Parameters in Powder Bed Fusion Technology with 316L Steel

Kozior

Bochnia

2020

Micromachines

View full text Add to dashboard Cite

Laser technologies for fast prototyping using metal powder-based materials allow for faster production of prototype constructions actually used in the tooling industry. This paper presents the results of measurements on the surface texture of flat samples and the surface texture of a prototype of a reduced-mass lathe chuck, made with the additive technology—powder bed fusion. The paper presents an analysis of the impact of samples’ orientation on the building platform on the surface geometrical texture parameters (two-dimensional roughness profile parameters (Ra, Rz, Rv, and so on) and spatial parameters (Sa, Sz, and so on). The research results showed that the printing orientation has a very large impact on the quality of the surface texture and that it is possible to set digital models on the building platform (parallel—0° to the building platform plane), allowing for manufacturing models with low roughness parameters. This investigation is especially important for the design and 3D printing of microelectromechanical systems (MEMS) models, where surface texture quality and printable resolution are still a large problem.

show abstract

Section: D Printingmentioning

confidence: 99%

The Influence of Printing Orientation on Surface Texture Parameters in Powder Bed Fusion Technology with 316L Steel

Kozior

Bochnia

2020

Micromachines

View full text Add to dashboard Cite

show abstract

“…Today, additive technologies enable the fabrication of models from plastic-based materials, metals, and ceramics. The introduction of additives to increase strength, corrosion resistance, heat resistance, and chemical resistance has made 3D printing technologies in the era of Industry 4.0 widely used in the foundries [ 1 , 2 , 3 , 4 ], jewellery, aerospace, automotive [ 5 , 6 , 7 ], defence, medicine [ 8 , 9 ], and pneumatic and hydraulic industries [ 10 ]. In addition, materials are now being used that enable fabrication from composite-based materials, particularly in technologies based on fused deposition modelling [ 11 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

Morphology of Models Manufactured by SLM Technology and the Ti6Al4V Titanium Alloy Designed for Medical Applications

et al. 2021

View full text Add to dashboard Cite

This paper presents the results of an experimental study to evaluate the possibility of using SLM additive technology to produce structures with specific surface morphological features. Qualitative and quantitative tests were conducted on samples fabricated by 3D printing from titanium (Ti6Al4V)-powder-based material and analysed in direct relation to the possibility of their use in medicine for the construction of femoral stem and models with a specific degree of porosity predicted by process-control in the self-decision-making 3D printing machine. This paper presents the results of the study, limitations of the method, recommendations that should be used in the design of finished products, and design proposals to support the fabrication process of 3D printers. Furthermore, the study contains an evaluation of how the printing direction affects the formation of certain structures on the printed surface. The research can be used in the development of 3D printing standardization, particularly in the consideration of process control and surface control.

show abstract

“…The manufacture of precision machine parts for the electrical, electronic, computer, biotechnological, and machine tool industries requires an understanding of the physical phenomena occurring at the microscale [1,2], especially when very low-depth cuts are involved [3,4]. One of the key factors affecting the surface quality in micromachining is the minimum chip thickness [5,6]. This parameter defines the minimum depth of cut at which, under specific cutting conditions, material is removed in the form of chip [7,8].…”

Section: Introductionmentioning

confidence: 99%

“…In [16,17], the model for h min (5) assumes that the stagnation point (A), based on the stagnant angle (θ), is affected by the edge radius (r n ). When the stagnant angle is 45 • , the minimum chip thickness ranges between 0.2 and 0.35 r n .…”

mentioning

confidence: 99%

A Method to Determine the Minimum Chip Thickness during Longitudinal Turning

Skrzyniarz

2020

Micromachines

View full text Add to dashboard Cite

Micromachining, which is used for various industrial purposes, requires the depth of cut and feed to be expressed in micrometers. Appropriate stock allowance and cutting conditions need to be selected to ensure that excess material is removed in the form of chips. To calculate the allowance, it is essential to take into account the tool nose radius, as this cutting parameter affects the minimum chip thickness. Theoretical and numerical studies on the topic predominate over experimental ones. This article describes a method and a test setup for determining the minimum chip thickness during turning. The workpiece was ground before turning to prevent radial runout and easily identify the transition zone. Contact and non-contact profilometers were used to measure surface profiles. The main aim of this study was to determine the tool–workpiece interaction stages and the cutting conditions under which material was removed as chips. Additionally, it was necessary to analyze how the feed, cutting speed, and edge radius influenced the minimum chip thickness. This parameter was found to be dependent on the depth of cut and feed. Elastic and plastic deformation and ploughing were observed when the feed rate was lower than the cutting edge radius.

show abstract

Dimensional and Shape Accuracy of Foundry Patterns Fabricated Through Photo-Curing

Cited by 14 publications

References 22 publications

The Influence of Printing Orientation on Surface Texture Parameters in Powder Bed Fusion Technology with 316L Steel

The Influence of Printing Orientation on Surface Texture Parameters in Powder Bed Fusion Technology with 316L Steel

Morphology of Models Manufactured by SLM Technology and the Ti6Al4V Titanium Alloy Designed for Medical Applications

A Method to Determine the Minimum Chip Thickness during Longitudinal Turning

Contact Info

Product

Resources

About