Relative Machinability of Wood-Based Boards in the Case of Drilling – Experimental Study

Podziewski, Piotr; Szymanowski, Karol; Górski, J.; Czarniak, P.

doi:10.15376/biores.13.1.1761-1772

Cited by 13 publications

(24 citation statements)

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“…All samples came from wood-based boards produced on a mass scale and targeted on the European Union market. Moreover, all samples came from the same sheets of the fourteen boards that were previously used by Podziewski et al [12] (the detailed characterization of the samples is shown in Table 1). Therefore the relative machinability indexes based on the simplified test can be directly compared with the earlier, significantly reliable results [12].…”

Section: Methodsmentioning

confidence: 99%

“…Moreover, all samples came from the same sheets of the fourteen boards that were previously used by Podziewski et al [12] (the detailed characterization of the samples is shown in Table 1). Therefore the relative machinability indexes based on the simplified test can be directly compared with the earlier, significantly reliable results [12]. The schemes of experimental setups for both (significantly reliable and highly simplified) tests are shown in Figures 1 and 2 (relatively) for the general comparison.…”

Section: Methodsmentioning

confidence: 99%

“…It is worth noting that the resistance to axial withdrawal of screw-mounted after drilling the adequate hole is one of the fundamental and standardized [10] properties of wood-based panels. Therefore, the machinability testing procedures for wood-based boards in the case of drilling seem to currently be the essential problem [11,12]. Only based on the (strictly defined and experimentally determined) relative machinability indexes can the machinability of different materials can be compared-not only in a qualitative (descriptive), but also in a quantitative (numerical) way.…”

Section: Introductionmentioning

confidence: 99%

“…One of the most reliable testing procedures (which can be used for wood-based boards in the case of drilling) has been suggested and tried by Podziewski et al [12]. The procedure is based on the use of a specialized, accurate system for measuring cutting forces and on conducting all tests in conditions that are similar to real industrial conditions (machine tool, cutting parameters etc.).…”

Section: Introductionmentioning

confidence: 99%

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Experimental Verification of a Highly Simplified, Preliminary Machinability Test for Wood-Based Boards in the Case of Drilling

Podziewski

Śmietańska

Górski

2021

Forests

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In contrast to metalworking there are no standardized or (at least) generally accepted, relative machinability tests for innovative or less known wood-based panels. The most reliable testing procedures are based on the use of a specialized, accurate system for measuring cutting forces and on conducting all tests in conditions that are similar to real industrial conditions (machine tool, cutting parameters etc.). However, the need for a more simplified testing procedure has often been voiced—not all scientists specializing in wood-based materials development have a machine tool comparable to one that can be found in a real furniture factory and piezoelectric force sensors at their unlimited disposal. To meet this need, the highly simplified, preliminary machinability test for wood-based boards in the case of drilling was developed and tried. The results of experimental research suggest that the simplified way of testing of relative machinability of wood-based boards (i.e., testing based on the photoelectric measurement of the time needed to make a 10 mm deep hole under constant feed force) can be a useful substitute of standard machinability testing procedure (based on accurate cutting forces measurements carried out in the standard industrial conditions). When verifying the simplified testing procedure, samples from each of the three basic groups of wood-based materials of substantially different internal structures (fiberboard, particleboard, and veneer boards) were tested. The relationship between significantly reliable and highly simplified machinability indexes turned out to be at a satisfactory level (R2 = 0.97 for particleboards and R2 = 0.95 for fiberboards or boards made of veneer or solid wood). The use of a simplified procedure can be especially pragmatic in case of any preliminary testing of innovative wood-based boards during the material development work.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Experimental Verification of a Highly Simplified, Preliminary Machinability Test for Wood-Based Boards in the Case of Drilling

Podziewski

Śmietańska

Górski

2021

Forests

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“…In case of plywood, the relationship between feed per revolution and feeding force were proportional. (Podziewski et al 2018) Drilling perpendicular to layers. Spindle speed 6000 rpm.…”

Section: Introductionmentioning

confidence: 99%

The accuracy of holes drilled in the side surface of plywood

Sydor

Rogoziński

Stuper‐Szablewska

et al. 2019

BioRes

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Dimensional accuracy of machining translates into susceptibility to defects in assembly of furniture elements. In the initial drilling phase, the tip of the drill may slip due to the properties of the workpiece, which may result in inaccurate machining. Taking this into account, it was decided to investigate this phenomenon for drilling in the side of the plywood board. Samples for testing were made of 18 mm thick, 13 layer birch-alder plywood, covered with melamine film, glued with phenol-formaldehyde glue. With the use of an industrial dowel drilling machine, 30 holes in each of three examined layer were made. All holes were made parallel to the layers – on the side of the plywood board, and their axes were located in three adjacent layers: the birch veneer layer, the adhesive layer, and the alder veneer layer. Two types of geometric accuracy of holes were analyzed: the distance between the real center of the hole and the nominal position and also the inclination of the hole axis from the nominal axis. The holes made in the adhesive layer showed approximately twice larger deviations compared with the holes made in two adjacent layers of veneer. There was no significant relationship between the deviations of the angle of holes axis and the inaccuracies in the position of their centers. Main conclusion: When drilling in the side surface of the plywood board, less accurate holes are obtained if the hole axis is located in the adhesive layer, and there is more accuracy if the hole axis is located in the veneer layer.

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Effect of the drag-finishing of cutting blades made of sintered carbides on tool life in particleboard machining

Czarniak,

Szymanowski,

Górski

et al. 2023

Wood Material Science & Engineering

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Relative Machinability of Wood-Based Boards in the Case of Drilling – Experimental Study

Cited by 13 publications

References 0 publications

Experimental Verification of a Highly Simplified, Preliminary Machinability Test for Wood-Based Boards in the Case of Drilling

Experimental Verification of a Highly Simplified, Preliminary Machinability Test for Wood-Based Boards in the Case of Drilling

The accuracy of holes drilled in the side surface of plywood

Effect of the drag-finishing of cutting blades made of sintered carbides on tool life in particleboard machining

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