The Effect of Circular Saw Blade Clamping Diameter on its Resonant Frequencies

Kaczmarek, Anna; Orłowski, Kazimierz A.; Javorek, L.

doi:10.4028/www.scientific.net/amm.838.18

Cited by 6 publications

(6 citation statements)

References 9 publications

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“…Nd represents the number of lines which are located on diameters. 23,24 The most common vibration modes typically have zero to four nodal diameters and zero nodal circles during woodcutting processes. Natural frequency is an important index to evaluate tensioning effect.…”

Section: Methodsmentioning

confidence: 99%

Tensioning effect modeling of circular saw blade after multi-spot pressure tensioning process

Zhang

2017

Advances in Mechanical Engineering

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Tensioning, as a plastic forming process, is the most important and advanced manufacturing process for circular saw blade. Multi-spot pressure tensioning is a new tensioning method that has been proposed and applied in recent years. However, the effects of process parameters of this method on tensioning effect of circular saw blade have not been systematically studied. This study aimed to examine the effects of loading force and spot distribution on tensioning stress field and natural frequencies of multi-spot pressure tensioned circular saw blade systematically. Both of these were calculated by a combination of dynamic/explicit, static/general, and frequency modules of ABAQUS software. An X-ray stress test validated the simulated tensioning stress field. Results show that loading force and spot distribution have effects on tensioning stress field and natural frequencies of circular saw blades with different extents.

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Section: Methodsmentioning

confidence: 99%

Tensioning effect modeling of circular saw blade after multi-spot pressure tensioning process

Zhang

2017

Advances in Mechanical Engineering

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“…In general, the e ciency of saw blades is in uenced by the workpiece characteristics, machining parameters, blade body, sawtooth, and active machine power [7,8]. A considerable amount of studies have been made in the eld of circular saw blades, which can be divided into the following categories: (1) analysis of energy consumption and cutting forces [9,10], (2) monitoring of sawtooth wear or workpiece surface integrity [11,12], (3) analysis of noise reduction [13,14], and (4) dynamic analysis [3,12,15].…”

Section: Introductionmentioning

confidence: 99%

“…These tools help to reduce the emitted noise level during mechanical interaction. Compared with the conventional one, the sandwich blades have a damping lm between two layers of steel cores, which can absorb the vibrations traveling through the body of the saw blade and reduce the emitted noise level up to 6-15 dB [7]. However, sandwich blades are thicker than traditional ones, so there are inevitable defects that reduce productivity.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of cutting performance for circular saw blade body modification by resin layers toward green manufacturing

Kang

Zhang

Sun

et al. 2023

Int J Adv Manuf Technol

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Cemented carbide circular saw blades are widely used in the metal and nonmetal manufacturing industry for cut-off and cut-tail production. High energy consumption and intense noise emission from conventional-type blades are urgent environmental issues to be solved. Hence, a laminated-resin blade is proposed to study the effect of adding a damping structure to the blade body on its cutting performance.Apart from reduced energy consumption, lower noise and high-quality surfaces are required by manufacturers. In this work, a laminated-resin blade and a conventional blade were compared regarding the details of cutting force and energy consumption, noise emission, and surface integrity. In addition, the effect of cutting uid on conventional saw blades was analyzed in terms of cutting force and noise emission. Experimental results show that the cutting force and noise of the laminated-resin blade were less than that of the conventional one, indicating reductions of 27.8% and 18 dB, respectively. Especially a reduction of more than 20 dB sound level was achieved in the high-frequency band. Lower cutting force attained by the laminated-resin blade showed that smoother cuts could be achieved. Cutting with cutting uid is superior to dry cutting in terms of cutting force, noise level, and workpiece surface integrity. The research sheds new light on the design of damping structures on saw blade bodies and quantitative analysis of the cutting performance.

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“…In more recent times, with the emerging of the finite element method, many new designs of circular sawblades have been developed (Yuan 2012;Wasielewski et al 2012;Droba et al 2015;Kaczmarek et al 2016a), and the influence of the rolling and geometrical parameters on dynamic behaviour has been calculated (Cristovao et al 2012;Heisel et al 2015;Li et al 2016). Many new methods have also been developed for the verification of dynamic behaviour (Orlowski et al 2007;Vesely et al 2012;Kaczmarek et al 2016b;Skoblar et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Dynamic Behaviour Analysis of a Commercial Roll-Tensioned Circular Sawblade

Merhar¹,

Bučar²,

Pepelnjak³

2017

BioResources

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A commercial woodcutting circular sawblade was analysed in this work. The lateral stiffness on the periphery was measured, and the natural frequencies were determined by modal analyses. The sawblade was modelled by the finite element method, where the influence of the internal stresses caused by roll-tensioning of the sawblade was considered. The roll-tensioning force was determined based on the measurement of the sawblade rolling profile, where it was established that the sawblade had been rolled with a force of 7800 N. The analysis showed that at the aforementioned force, the lateral stiffness was a maximum; here, the calculated and measured stiffnesses were 81 and 60 N/mm, respectively. The calculated natural frequencies agree well with the measured ones, where in the most important vibrational modes there is only a 7% difference. The maximum rotational speed for the sawblade was determined to be 85% of the critical speed. Because the sawblade was clamped with a ratio of clamping of only 0.25, the maximum rotational speed was amounted to 6630 rpm. Increasing the rolling force would increase the critical speed but greatly reduce the lateral stiffness.

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The Effect of Circular Saw Blade Clamping Diameter on its Resonant Frequencies

Cited by 6 publications

References 9 publications

Tensioning effect modeling of circular saw blade after multi-spot pressure tensioning process

Tensioning effect modeling of circular saw blade after multi-spot pressure tensioning process

Experimental investigation of cutting performance for circular saw blade body modification by resin layers toward green manufacturing

Dynamic Behaviour Analysis of a Commercial Roll-Tensioned Circular Sawblade

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