Locally Graded Steel Materials for Self-Sharpening Cutting Blades

Rostek, Tim; Homberg, Werner

doi:10.1016/j.proeng.2017.10.979

Cited by 14 publications

(7 citation statements)

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“…[9]. Self-grinding knives prepared by laser cladding are used in forage choppers, and demonstrate significantly improved performance characteristics [10]. In addition to the coating technique, the material composition is the other important element influencing the performance of self-grinding knives.…”

Section: Introductionmentioning

confidence: 99%

Self-Grinding Silage Knife Strengthened with Ni–WC Alloy Prepared by Laser Cladding

Song

et al. 2021

Applied Sciences

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The working environment of agricultural cutting tools is poor, and the operational quality and efficiency are reduced after they become blunt. This study aimed to develop a high wear-resistant agriculture knife with a long life. A Ni–WC alloy, wear-resistant layer was prepared using laser cladding technology on one side of the cutting edge of a 65 Mn silage knife. A self-grinding edge was formed when the cladded knife was used, which improved the cutting quality and service life of the knife. The microstructure, phase, composition, and hardness distribution of the cladding layer were detected and analyzed. The impact toughness and wear resistance of the laser-cladded samples were analyzed, and the cladded knife was tested in the field. The results show that a cladded layer with a dense microstructure formed metallurgical bonds with the substrate. The microhardness was uniform across the cladded layer, and the average hardness of the micro Vickers was approximately 1000 HV(0.2), which was approximately three times the hardness of the substrate. The impact toughness and wear resistance of the coated knife were obviously higher than those of uncoated knives. The field tests showed that compared with a conventional 65 Mn knife, the self-grinding knife with laser cladding could maintain its sharp cutting shape after operation for 76 h, which greatly extended the service life of the knife. This study improved the service life of an agricultural cutting tool, which enhanced the cutting performance and efficiency at the same time.

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Section: Introductionmentioning

confidence: 99%

Self-Grinding Silage Knife Strengthened with Ni–WC Alloy Prepared by Laser Cladding

Song

et al. 2021

Applied Sciences

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“…Galandinimo operacija gamybos proceso metu nors ir yra parengiamoji, bet labai svarbi siekiant užtikrinti tolimesnį gamybos proceso efektyvumą, ypač kai kalbama apie metalo apdirbimo įmones (Rostek and Homberg, 2017). Taršos kietosiomis dalelėmis identifikavimas leidžia numatyti saugos priemones, būtinas užtikti tiek higienos reikalavimus, tiek darbo vietos ergonominius principus, juk atsirandantis darbuotojo nuovargis ir kiti sveikatos sutrikimai turi įtakos pačiam gamybos proceso efektyvumui.…”

Section: įVadasunclassified

Kietųjų dalelių taršos galandinimo proceso metu tyrimas

Matijošius

Rimkus

Juchnevičius

et al. 2021

DAV

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Nuolat modernėjant pramonei vis labiau į akiratį patenka metalo apdirbimo darbinėje aplinkoje esantys organizmai ir jų galimai sukeliami apdirbimo procesų metu išsiskiriančių kietųjų dalelių, patekusių į gyvų organizmų vidų, neigiami padariniai. Smulkiausios kietosios dalelės, patekusios į žmogaus organizmą, patenka ne tik į plaučių bronchinio medžio smulkiausius taškus, tačiau gali užteršti ir kraujotaką, todėl tyrimo metu buvo nuspręsta identifikuoti kietųjų dalelių taršos pokytį galandinimo proceso metu, įvertinti darbinės aplinkos trūkumus ir pateikti efektyvius problemos sprendimo būdus.

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“…Self-repairing components: e.g. self-sharpening blades (Rostek and Homberg, 2017) 5. Predetermined breaking point: System transferred to safe condition in case of overload; e.g.…”

Section: Synthesis Of Resilient Load-carrying Systemsmentioning

confidence: 99%

Analysis and Synthesis of Resilient Load-Carrying Systems

Schulte¹,

Kirchner²,

Kloberdanz³

2019

Proc. Int. Conf. Eng. Des.

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Resilient systems have the capability to survive and recover from seriously affecting events. Resilience engineering already is established for socio-economic organisations and extended network-like structures e. g. supply systems like power grids. Transferring the known principles and concepts used in these disciplines enables engineering resilient load-carrying systems and subsystems, too. Unexpected load conditions or component damages are summarised as disruptions caused by nesciense that may cause damages to the system or even system breakdowns. Disruptions caused by nescience can be controlled by analysing the resilience characteristics and synthesising resilient load-carrying systems. This paper contributes to a development methodology for resilient load-carrying systems by presenting a resilience applications model to support engineers analysing system resilience characteristics and behaviour. Further a concept of a systematically structured solution catalogue is provided that can be used for the classification of measures to realise resilience functions depending on system adaptivity and disruption progress. The resilience characteristics are illustrated by 3 examples.

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Locally Graded Steel Materials for Self-Sharpening Cutting Blades

Cited by 14 publications

References 1 publication

Self-Grinding Silage Knife Strengthened with Ni–WC Alloy Prepared by Laser Cladding

Self-Grinding Silage Knife Strengthened with Ni–WC Alloy Prepared by Laser Cladding

Kietųjų dalelių taršos galandinimo proceso metu tyrimas

Analysis and Synthesis of Resilient Load-Carrying Systems

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