Selection of Subtractive Manufacturing Technology Versus Additive Manufacturing Technology for Rapid Prototyping of a Polymeric Product

Belgiu, George; Turc, Cristian Gh.; Cărăușu, Constantin

doi:10.37358/mp.20.4.5434

Cited by 4 publications

(3 citation statements)

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“…We can find developments ranging from dental implants used in dentistry to prosthesis and a variety of medical devices [3,4]. Because the fit of customized items manufactured with traditional technologies required multiple post-processing procedures, currently with AM processes personalization is possible and may be achieved reasonably easily [5,6].…”

Section: Introductionmentioning

confidence: 99%

The Influence of 3D Printing Parameters on the Mechanical Behavior of PLA

Enache,

Cristina,

Chivu

et al. 2024

Mater. Plast.

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Additive technologies are continually evolving and are crucial in numerous industries, including medical, aerospace, and automotive, but they can also play an important role in the prototyping phase. Due to additive manufacturing, amateurs and enthusiasts can construct simple projects as well as large projects with specialized usage in specific applications. When it comes to complex pieces, traditional manufacturing technologies such as milling, chipping, drilling, and so on have specific constraints, often need even additional production processes to complete the item. All of these constraints can be solved with additive technologies. This work investigates Fused Deposit Modeling (FDM) printing of many specimens with varying properties in order to analyze PLA (Poly Lactic Acid) material behavior following tensile testing. The collected findings will be analyzed in order to determine the specimens with the most significant behavior according on the modified parameters.

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Section: Introductionmentioning

confidence: 99%

The Influence of 3D Printing Parameters on the Mechanical Behavior of PLA

Enache,

Cristina,

Chivu

et al. 2024

Mater. Plast.

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“…Additive manufacturing (AM) techniques are recently very popular in many branches of industry due to the possibility of fast and accurate production of elements with various and complex shapes [ 1 ]. Among many materials, polymers have been recently widely applied [ 2 ] as they allow manufacturing structures both for everyday use and technical elements for testing prototypic solutions [ 3 ]. The variety of applications of AM elements causes them to be exposed to different mechanical loadings and environmental factors.…”

Section: Introductionmentioning

confidence: 99%

Embedded Optical Fibre with Fibre Bragg Grating Influence on Additive Manufactured Polymeric Structure Durability

2022

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Additive manufacturing (AM) polymers are applied in many branches of the industry due to the possibility of fast and accurate production of elements with various and complex shapes. Fibre Bragg grating sensors (FBG) are widely applied in structural health monitoring (SHM) systems. The main objective of this research is to perform analyses of the influence of embedded FBG sensors on AM polymer elements’ durability. Two polymers (M3 X and M3 Crystal) with different mechanical properties were analysed. The tests were performed on samples with FBG sensors embedded in (different alignment) and attached to the surfaces of the elements. Firstly, the samples were exposed to elevated or sub-zero temperatures under stable relative humidity levels. The strain in the samples was measured using fibre Bragg grating (FBG) sensors. The achieved results allow us to determine the relationships between strain and temperature for both materials and the differences in their mechanical response to the thermal loading. Then, the samples were subjected to a tensile test. A comparison of the tensile strength values was performed for the samples without and with embedded FBG sensors. The samples after the tensile tests were compared, showing differences in the mechanisms of failures related to the polymers and the thermal treatment influence on the material internal structure. Additionally, strain values measured by the FBG sensors were compared to the strain values achieved from the testing machine showing a good agreement (especially for M3 X) and indicating the differences in the materials’ mechanical properties. The achieved results allow us to conclude there is a lack of influence of embedded FBG sensors on the mechanical durability of AM polymers.

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“…The main advantages of the material jetting technology are: higher manufacturing accuracy compared to other additive technologies, lower roughness, shorter part manufacturing times due to multijet printhead deposition, the possibility of using several model materials on the same part (model material mixing) and local variation of the mechanical properties of the resulting composite material [5]. The main disadvantages of this technology are related to the high manufacturing costs (cost of equipment, cost of materials) and the complexity of the maintenance process of the printing equipment (complete cleaning of the material flow circuits is necessary to avoid blockages and manufacturing imperfections) [7].…”

Section: Introductionmentioning

confidence: 99%

Study Regarding the Influence of the Printing Orientation Angle on the Mechanical Behavior of Parts Manufactured by Material Jetting

Cojocaru¹,

Frunzăverde²,

Nedelcu³

et al. 2021

Mater. Plast.

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Initially developed as a rapid prototyping tool for project visualization and validation, the recent development of additive manufacturing (AM) technologies has led to the transition from rapid prototyping to rapid manufacturing. As a consequence, increased attention has to be paid to the mechanical, chemical and physical properties of the printed materials. In mechanical engineering, the widespread use of AM technologies requires the optimization of process parameters and material properties in order to obtain components with high, repeatable and time-stable mechanical properties. One of the main problems in this regard is the anisotropic behavior of components made by additive manufacturing, determined by the type of material, the 3D printing technology, the process parameters and the position of the components in the printing space. In this paper the influence of the printing orientation angle on the tensile behavior of specimens made by material jetting is investigated. The aim was to determine if the positioning of components at different angles relative to the X-axis of the printer (and implicitly in relation to the multijet printing head) contributes to anisotropic behavior. The material used was a photopolymer with a mechanical strength between 40 MPa and 55 MPa, according to the producer. Four sets of tensile test specimens were manufactured, using flat build orientation and positioned on the printing table at angles of 0˚, 30˚, 60˚ and 90˚ to the X-axis of the printer. Comparative analysis of the mechanical behavior was carried out by tensile tests and microscopic investigations of the tensile test specimens fracture surfaces.

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Selection of Subtractive Manufacturing Technology Versus Additive Manufacturing Technology for Rapid Prototyping of a Polymeric Product

Cited by 4 publications

References 0 publications

The Influence of 3D Printing Parameters on the Mechanical Behavior of PLA

The Influence of 3D Printing Parameters on the Mechanical Behavior of PLA

Embedded Optical Fibre with Fibre Bragg Grating Influence on Additive Manufactured Polymeric Structure Durability

Study Regarding the Influence of the Printing Orientation Angle on the Mechanical Behavior of Parts Manufactured by Material Jetting

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