Fracture analysis of forks of a heavy duty lift truck

Figueiredo, Miguel; Oliveira, F.M.F.; Gonçalves, J.P.M.; Castro, P.M.S.T. de; Fernandes, A. A.

doi:10.1016/s1350-6307(00)00040-6

Cited by 7 publications

(3 citation statements)

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“…Papers published so far such as [22][23][24][25][26][27][28], explicitly deal with fork or whole forklift damage. In contrast, this paper is about understanding the mechanism of load damage on the forks of a forklift, which requires studying the individual nature of the forklift movement.…”

Section: Mechanism Of Load Damage Occurrencementioning

confidence: 99%

Energy Consumption When Transporting Pallet Loads Using a Forklift with an Anti Slip Pad Preventing Damage

2021

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A large number of processes for transporting and handling palletized goods using a forklift in logistics centers is usually associated with an increase in pallet and load damage. Therefore, first of all, the “damage mechanism” was identified. A classic “state of the art” analysis was conducted. The paper presents the essence of the authors’ hybrid idea of:—locking the load;—while increasing the coefficient of friction between the pallet and the forks of the forklift; but so as not to compromise on the existing functionality of the forklift forks. The idea turned out to be an innovation that required intellectual property protection, hence it was not only described in a paper but also patented. It is about an extra element that is not standard on forklifts—a forklift fork attachment. The paper discusses mechanical damage to loads involving a forklift, load damage test results, anti-slip forklift attachment, computational model of the attachment, prototype, and real-world testing of the attachment on a forklift in a logistics center. Design data from the FEM calculation system, photos of:—the prototype with components,—the prototype on tests in the logistics center were made available. The paper concludes with a pallet and load damage study performed at a logistics center and an insulation panel factory. The level of accuracy of the publication is detailed enough that the reader can make the attachment on their own and, using the content of the paper, adapt it to the needs of their own logistics system.

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Section: Mechanism Of Load Damage Occurrencementioning

confidence: 99%

Energy Consumption When Transporting Pallet Loads Using a Forklift with an Anti Slip Pad Preventing Damage

2021

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“…Since the results are sensitive to the values of a i , the values considered here are based on recommendations made for design of high-pressure vessels, and results of previous works (e.g. [17]). Similar to stress intensity factor calculation, the integration routine discussed earlier is also employed here.…”

Section: Fatigue Life Determinationmentioning

confidence: 99%

Fatigue life prediction of autofrettage tubes using actual material behaviour

Jahed

Farshi

Hosseini

2006

International Journal of Pressure Vessels and Piping

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“…The strength and stiffness of the fork must meet the safety requirements, but they also require a good plasticity index and certain low-temperature impact properties. The research shows that the load-support parts of forklift forks are subjected to repetitive stress conditions of a variety of load and frequency spectra [1,2], including loading and unloading cycles and vibrations coming from moving on irregular terrain conditions [3,4]. The raw materials' quality is one of the main causes inducing fatigue failure of forklift forks.…”

Section: Introductionmentioning

confidence: 99%

Inclusions Control and Refining Slag Optimization for Fork Flat Steel

Zhao

et al. 2019

Metals

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In order to investigate the causes of the large number of cracks and porosities formed in 33MnCrTiB fork flat steel produced by a special steel plant, scanning electron microscopy (SEM), energy dispersive spectrometer (EDS) analysis, and large sample electrolysis of the obtained steel samples were carried out in different steps of the steelmaking processes. The main micro-inclusions in the fork flat steel samples were Al2O3, CaO-MgO-Al2O3-SiO2, and TiN, and the macro-inclusions were mainly Al2O3, CaO-Al2O3, CaO-Al2O3-SiO2-TiO2, and CaO-MgO-Al2O3-SiO2-TiO2-(K2O) systems which originated from the ladle slag and mold flux in the production process. In order to reduce the number of micro-inclusions effectively, the control range of components in the refining slag was confirmed by the thermodynamic calculation, where the mass ratio of CaO/Al2O3 should be in the range of 1.85–1.92, and the mass fraction of SiO2 and MgO should be controlled to 7.5–20% and 6–8%, respectively. In addition, the numbers of macro-inclusions in the flat steel should be effectively reduced by optimizing the flow field of mold and preventing the secondary oxidation, and the flat steel quality problems caused by the inclusions can be improved by the optimization process above.

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Fracture analysis of forks of a heavy duty lift truck

Cited by 7 publications

References 1 publication

Energy Consumption When Transporting Pallet Loads Using a Forklift with an Anti Slip Pad Preventing Damage

Energy Consumption When Transporting Pallet Loads Using a Forklift with an Anti Slip Pad Preventing Damage

Fatigue life prediction of autofrettage tubes using actual material behaviour

Inclusions Control and Refining Slag Optimization for Fork Flat Steel

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