Comparative Study on Wood CNC Routing Methods for Transposing a Traditional Motif from Romanian Textile Heritage into Furniture Decoration

Lungu, Antonela; Ispas, Mihai; Brenci, Luminiţa-Maria; Răcășan, Sergiu; Coşereanu, Camelia

doi:10.3390/app11156713

Cited by 3 publications

(3 citation statements)

References 12 publications

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“…Computerized numerical control (CNC) routing is a widely used method for the manufacture of wood-based furniture ornaments (Lungu et al 2021a). This technique can be employed to revive traditional motifs from cultural heritage (Lungu et al 2021b) and wood-carved ornaments embedded in the historical objects (Namicev and Namiceva 2018).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of CNC routed surface quality of maple (Acer pseudoplatanus) and oak (Quercus robur L.) with different milling angles as function of grain orientation

Lungu

Gurău

Coşereanu

2023

BioRes

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The study assessed CNC routing quality on maple and oak samples, using 90º V-Grooving router bits at various milling angles as function of grain orientation: 0°, 15°, 30°, 45°, 60°, 75°, 90°, and feed speeds of 3 and 6 m/min at spindle speed of 15,000 rpm. The routing quality was evaluated by roughness parameters for the V flank surfaces and by visual examination for the flanks’ edges. The change in the feed speed had no significant effect for the flanks surface quality of both species, but roughness values were considerable higher for maple samples at 90º and u=3 m/min (Rk = 23.7 µm compared to along the grain, Rk=9.83 µm for u=6 m/min) due to possible processing vibrations. The milling angle as function of grain orientation was significant in the case of oak, as the processing roughness increased with the cutting angle from 0° (Rk=11 to 13 µm) to 60°(Rk =28 to 30 µm). Fuzziness around the earlywood pores of oak was higher for the 6 m/min feed speed. A substantial increase in waviness coinciding with the annual growth areas was measured for crosscut oak samples (Wa = 34.0 µm, compared with Wa =7 .39 µm along the grain). The surface waviness of maple was not sensitive to the variation in the cutting angle or feed speed (Wa was around 3 to 4 µm). For the flank edges, the best visual option was found for cutting along the wood grain and the worst was for 60º, which caused biggest ruptures and especially for the 3 m/min feed speed, for both species.

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Section: Introductionmentioning

confidence: 99%

Evaluation of CNC routed surface quality of maple (Acer pseudoplatanus) and oak (Quercus robur L.) with different milling angles as function of grain orientation

Lungu

Gurău

Coşereanu

2023

BioRes

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“…The study involved the visual examination of the quality of the routed surface based on the tool's position relative to the wood grain direction, calculated as an angular value related to the central angle of the circle (Figure 2). Thus, for a central angle (α), the machining angle in relation to the wood grain direction is (90°α) for angles above the horizontal axis, to the right of the vertical axis (quadrant Q 1 ) (Figure 2a), (α -270°) for angles above the horizontal axis, to the left of the vertical axis (quadrant Q 2 ) (Figure 2b), (270°α) for angles below the horizontal axis, to the left of the vertical axis (quadrant Q 3 ) (Figure 2c), and (α -90°) for angles below the horizontal axis, to the right of the vertical axis (quadrant Q 4 ) (Figure 2d) [5]. The purpose of the study was to visualise defects such as torn fibres and rough surfaces on the 180 mm diameter circles milled on the CNC machine during the machining process.…”

Section: Fig 1 the Cmt Orange V-groove Router Bit With A 90° Angle Us...mentioning

confidence: 99%

Evaluation of CNC Routed Surface Quality of Beech (Fagus sylvatica L.) with Different Milling Angles as Function of Grain Orientation

Lungu,

Gurau,

Cosereanu

2023

FWIAFE

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The paper presents an experimental investigation of the quality of CNC routed surfaces with a V-Grooving router bit (90°) on various milling angles as a function of wood grain direction on beech (Fagus sylvatica L.) wood. The quality of the machined surface was first visually assessed for the presence of raised fibre and other processing defects on the routed circles with a diameter of 180 mm using feed speeds of 3 m/min and 6 m/min respectively, and spindle speeds of 12,000, 15,000, and 18,000 rpm. The quality of the processed surfaces on the circle indicated the most unfavourable CNC routing regime accompanied by the conclusions regarding the most unfavourable angles related to the grain. Further research considered the assessment of the surface quality on straight CNC routing with angles of 0, 15, 30, 45, 60, 75, and 90° related to the wood grain direction at feed speeds of 3 and 6 m/min and spindle speed of 15,000 rpm. In this case, the characterisation of the wood surface quality was made by measuring the roughness parameters. The highest values of the roughness parameters, showing the presence of the fibres detached from the surface, were recorded for the cutting angle of 60, followed closely by 75°, then 45°, and 90° at a feed speed of 3 m/min. No significant difference was found between the Rk of the cutting angles from 0° to 45°, but it increased significantly for 60, 75, and 90°, showing frequent deeper anatomical voids on the surface.

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“…The engraving process has begun to involve the use of technology. Computerized Numerical Control (CNC) Router technology, widely used in the furniture industry, presents opportunities for engraving on various materials such as wood surfaces [14]. Another recent technology that is popularly used is laser technology which has been adopted in industrial processes for the manufacture of Engraving.…”

Section: Introductionmentioning

confidence: 99%

Improving the visual impressions of wood-based craft products through two-dimensional engraving of patterns

Nugraha

Leksono

Angelina

2022

IOP Conf. Ser.: Earth Environ. Sci.

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Small enterprises in product craft bases are considered to be more resilient in facing the challenges of the current pandemic condition, despite a decline in income during the pandemic’s peak. Craft products are one of the sub-sectors of the creative economy that has a contributor to Indonesia’s Gross Domestic Product (GDP). Competition occurs between the producers of these crafts products where the makers present products that show aesthetic value and elements of the product’s function. Craft products always put forward a stunning visual appearance so that the product is in demand and purchased by consumers. To struggle with the increasingly fierce competition, the quality of visual impressions that are continuously generated must be established. This research focuses on attempts to improve the visual appearance that has the impact of presenting the aesthetics of craft products by using a two-dimensional engraving approach. The engravings are processed using a sandblasting technique. The study process used a pre-experimental design approach, and the results of the improving visual impressions were evaluated using a questionnaire step which was analyzed using factor analysis. The study results show a positive response to changes in visual perceptions, indicating an increased aesthetic perception that is better than the previous craft products. The final study shows that applying two-dimensional engraving patterns on craft products effectively improves visual and aesthetic impressions.

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Comparative Study on Wood CNC Routing Methods for Transposing a Traditional Motif from Romanian Textile Heritage into Furniture Decoration

Cited by 3 publications

References 12 publications

Evaluation of CNC routed surface quality of maple (Acer pseudoplatanus) and oak (Quercus robur L.) with different milling angles as function of grain orientation

Evaluation of CNC routed surface quality of maple (Acer pseudoplatanus) and oak (Quercus robur L.) with different milling angles as function of grain orientation

Evaluation of CNC Routed Surface Quality of Beech (Fagus sylvatica L.) with Different Milling Angles as Function of Grain Orientation

Improving the visual impressions of wood-based craft products through two-dimensional engraving of patterns

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