The Effects of Blade Coatings on Corce Demand When Pruning Grape

Abstract

The effects of different blade coating materials on force demands were examined in the present study. The force demands when cutting grape branches with St-52 steel, polytetrafluoroethylene (PTFE)-coated and Soft Teflon (STP)-coated lopper blades were measured. A universal testing machine was used as the simulated cutting task together with a force cell in the laboratory. Grape branches were the testing material. The differences between the force demands of blades were significant (P<0.01). The PTFE-coated blade resulted in a 30.69% and 25.63% lower average force compared to the STP-coated blade and ST52 steel-surfaced blades for the 6-9 mm diameter sample group respectively. When the other diameter group is examined for the same materials, the PTFE-coated blade resulted in a 17.76% and 13.82% lower average force respectively. Also, a PTFE-coated blade was obtained for both diameter groups at the smallest energy value. The differences between the energy demands of lopper blades were significant (P<0.05).

Keywords

• Blade coatings
• Teflon
• Grape pruning

References

1. Alizadeh MR, Ajdadi FR, Dabbaghi A. 2011. Cutting energy of rice stem as influenced by internode position and dimensional characteristics of different varieties. Aust J Crop Sci, 5: 681-687.
2. Aytan S. 2012. Variation of cutting force depending on some physical properties of the branch and cutting speed in cutting branches of some fruit trees with teflon (ptfe) coated and noncoated pruning scissors. MSc Thesis, Ondokuz Mayıs University, Institute of Science, Samsun, Türkiye, pp: 71.
3. Beyhan MA. 1996. Determination of shear strength of hazelnut sucker. J Agric Fac, 11: 167-181.
4. Dougherty PH. 2012. Sommer BJ. The geography of wine. Regions, terroir and techniques. Springer, Dordrecht, The Netherlands, pp: 256.
5. EIB. 2021. Ege ihracatçi birlikleri. bültenler. URL: https://www.eib.org.tr/tr/Sayfa.Asp?SI_Id=5A02DF31AF&HID=5CD180FB635D416197376E4934CE4089 (access date: September 12, 2022).
6. Gatti M, Civardi S, Bernizzoni F, Poni S. 2011. Long-term effects of mechanical winter pruning on growth, yield, and grape composition of barbera grapevines. Am J Enol Vitic, 62: 199-206.
7. Genç S, Soysal MI. 2018. Parametric and nonparametric post hoc tests. BSJ Eng Sci, 1: 18-27.
8. Ghahraei OD, Ahmad A, Khalina H, Othman J. 2011. Cutting tests of kenaf stems. Transactions of the ASABE, 54: 51-56.

9. Hagberg M, Wegman DH. 1987. Prevalence rates and odds ratios of shoulder-neck diseases in different occupational groups. Br J Ind Med, 44: 602-610.
10. Hoseinzadeh B, Shirneshan A. 2012. Bending and shearing characteristics of canola stem. American-Eurasian J Agric Environ Sci, 12: 275-281.
11. Johnson PC, Clementson CL, Mathanker SK, Grif TE, Hansen AC. 2012. Cutting energy characteristics of miscanthus x giganteus stems with varying oblique angle and cutting speed. Biosyst Eng, 112: 42-48.
12. Kanafojski C, Karwowski T. 1976. Agricultural Machines, Theory and Constructions - Crop-Harvesting Machines. National Center for Scientific, Technical and Economic Information, Warsaw, Poland, pp: 1062.
13. Kardborn A. 1998. Inter-organizational participation and user focus in a large-scale product development programme: the Swedish hand tool project. Int J Ind Ergon, 21: 369-381.
14. Lakshmi PR, Kumari DR. 2016. Ergonomics of bread making tools – A Review. IJSR, 5: 185-191.
15. Lu X, Wong KC, Wong PC, Mitchell KAR, Cotter J, Eadie DT. 2006. Surface characterization of polytetrafluoroethylene (PTFE) transfer films during rolling–sliding tribology tests using X-ray photoelectron spectroscopy. Wear, 261: 1155-1162.
16. Mathanker SK, Grift TE, Hansen AC. 2015. Effect of blade oblique angle and cutting speed on cutting energy for energy cane stems. Biosyst Eng, 133: 64-70.
17. Niemela T, Paivinen M. 2001. Usability testing method for splitting axes. Proceedings of NES. Promotion of health through ergonomic working and living conditions. 33rd Congress of the Nordic Ergonomics Society, September 2–5, 2001, Tampere, Finland, pp: 161-165.
18. Önder H. 2018. Nonparametric statistical methods used in biological experiments. BSJ Eng Sci, 1: 1-6.
19. Özdemir G, Eliçin AK, Pekitkan FG. 2016. Cutting properties of different grape varieties. Agric For, 61: 211-216.
20. Özdemir G, Sessiz A, Esgici R, Eliçin AK. 2015. Cutting properties of wine grape cultivars. Sci Papers Series B, Horticulture, 5: 151-158.
21. Paivinen M, Heinimaa T. 2003. The effects of different hand tool blade coatings on force demands when cutting wood. Int J Ind Ergon, 32: 139-146.
22. Poni S, Tombesia S, Palliotti A, Ughinia V, Gattia M. 2016. Mechanical winter pruning of grapevine: Physiological bases and Applications. Sci Horticulturae, 204: 88-98.
23. Prasada J, Gupta CB. 1975. Mechanical properties of maize stalks as related to harvesting. J Agric Eng Res, 20: 79-87.
24. Selvi KÇ, Kabaş Ö. 2016. Bending and shearing properties of some standard carnation (dianthus caryophyllus l.) varieties stem. Acta Technica Corviniensis, 4: 133-136.
25. TUIK. 2022. Türkiye İstatistik Kurumu.URL: https://www.tuik.gov.tr/ (access date: September 12, 2022).
26. Zabadal TJ, Vanee GR, Dittmer TW, Ledebuhr RL. 2002. Evaluation of strategies for pruning and crop control of concord grapevines in southwest Michigan. Am J Enol Vitic, 53: 204-209.