Investigation of the geometric change of plastic articles made by polyamide

Aclan, Metin; Oezden, Rauf; Danho, Saliba

doi:10.1051/matecconf/201817804003

Cited by 2 publications

(1 citation statement)

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“…One of the main drawbacks of 3D printed materials is their tendency to absorb humidity, causing dimensional and geometric instability. Aclan et al [17] confirmed this in their study. Clavería et al [18] explored the impact of environmental conditions on dimensional stability for injected parts in Polyamide 6 (PA6) and Polyamide 66 (PA66), finding an average dimension variation of 12% for PA6 and 3% for PA66.…”

Section: Introductionsupporting

confidence: 62%

Study of the industrial potential of Markforged X7 3D printer

Nikiema,

Sergent,

Balland

2024

Mechanics & Industry

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Additive Manufacturing (AM) using Fused Deposition Modelling (FDM) is a 3D printing technique that can produce parts with complex shapes. Multiple types of 3D printers are available in the market, so it is essential to understand their potential to manufacture parts that meet industry standards. This study aims to evaluate the industrial potential of the Markforged X7 printer by assessing its performance based on the QS9000 quality standard. The quality indices, including the Cp index and the Cpk index, were determined for different dimensions, and admissible tolerances were identified for geometrical defects. The study shows that the quality indices, especially the Cp index, are within an acceptable range of 1.6 to 2 for the class 12 tolerance interval (IT12). The geometrical defects are predominantly categorized as fine according to the ISO 2768 standard, with deviations in geometrical features ranging from 0.06 to 0.08 mm. Additionally, the study investigated the impact of moisture and glass fiber reinforcement on the geometrical features. The analysis indicated that moisture increases deviations in the features. However, adding reinforcing fibers does not improve deviations but stabilizes them under the effect of moisture.

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Section: Introductionsupporting

confidence: 62%

Study of the industrial potential of Markforged X7 3D printer

Nikiema,

Sergent,

Balland

2024

Mechanics & Industry

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Analysis of shape deviations of technical polyamide workpieces in different defined time intervals

Aclan

Popa

Oezden

2019

IOP Conf. Ser.: Mater. Sci. Eng.

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Engineering grade plastics gain importance across the industry and have become indispensable today. Machine operators must concern themselves among others with environmental and manufacturing influences that can affect the geometrical properties of plastic articles daily. In practice, these are declared as check gauges in the inspection drawing and are checked in accordance with quality standards. Based on experience, plastic articles made from polyamide start to grow after a certain time span. Even manufacturers of plastic granulate indicate this in their fact sheets. Here, the geometry of the plastic articles themselves plays a crucial role, especially in how far it can be altered. Additionally, in globally aligned companies with several production facilities, certain ecological influences such as temperature and humidity are different. The effect this has on plastic articles in terms of growth has been investigated in a different research paper [1]. This paper is primarily concerned with the evaluation of geometrical alteration by means of warpage formation. Thereby, an experimental part is demonstrated and constituted in comparison with two different climate simulations, of standard climate and one of extreme climate, over the course of a defined period of two months.

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Investigation of the geometric change of plastic articles made by polyamide

Cited by 2 publications

References 0 publications

Study of the industrial potential of Markforged X7 3D printer

Study of the industrial potential of Markforged X7 3D printer

Analysis of shape deviations of technical polyamide workpieces in different defined time intervals

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