Evaluation of the stress state of a cultivator blade in production and operation

https://doi.org/10.17221/8/2020-RAECitation:Skoblo T., Rybalko I., Tihonov A., Maltsev T. (2020): Evaluation of the stress state of a cultivator blade in production and operation. Res. Agr. Eng., 66: 60-65.
download PDF

The aim of the work was to determine the quality of a new and used cultivator blade to assess the condition of the metal with the development of rejection norms of its variability in a magnetic parameter – coercive force using various types of equipment – coercimeters. The new cultivator blade shows the highest level of coercive force that is characteristic of its right and left parts and its decrease occurs towards the toe. After operation, variability is noted, characterised by both an increase and a decrease in the indicators of the coercive force. Rejection norms of the metal state, which determine the possibility of restoring a worn cultivator blade, which can also provide satisfactory indicators for their further use in operation, have been proposed. For restoration, it is recommended to use a cultivator blade made of low carbon steel, the zones of which should not change the level of the coercive force > 10.0% during operation. It is not recommended to restore those blades in which, after increasing the indicators, they then decreased to (< 5.0%) and are characterised by close values of the indicators.

References:
Aulin V., Warouma A., Lysenko S., Kuzyk A. (2016): Improving of the wear resistance of working parts agricultural machinery by the implementation of the effect of self-sharpening. International Journal of Engineering & Technology, 5: 126–130.
 
Banaj Đ., Vujčić M., Emert R., Duvnjak V. (2000): Material wear of cultivator shovels. Strojarstvo, 42: 119–126.
 
Bazarov B.M. (2007): Fundamentals of Engineering Technology. Moscow, Mechanical engineering.
 
Bezlyudko G.Y.., Popov B.E., Solomakh R.N. (2014): Evaluation of fatigue and stress-strained state of metal structures and equipment, including a forecast of residual life, on the measurements of the magnetic characteristics – the coercive force. Technical Diagnostics and Non-Destructive Testing, 1: 55–58.
 
Bezlyudko G.Y., Popov B., Solomakha R.N. (2015): Application of coercive force method nowadays. NDT World, 4: 4–8.  https://doi.org/10.12737/16326
 
Bida G.V., Nichipuruk A.P. (2000): Coercive force measurements in nondestructive testing. Russian Journal of Nondestructive Testing, 10: 3–28.
 
Gorkunov B., Tyshchenko A., Bogomaz O., Lvov S., Jabbar A. (2019): Sorting thin-wall sheets of the same steel grade various manufacturers. The Scientific Heritage, 42: 58–63.
 
Gribanovsky A.P., Biddinglinger R.V., Rzaliev A.S., Goloborodko V.P. (2018): Machinery and tools of soil-protecting agriculture: theory and designing. Cambridge, Cambridge International Academics.
 
James R.S. (1993): Cultivator Sweep. US Patent 5,259,461. Jan 13, 1992.
 
Mahalov M.S., Blumenstein V.Y. (2016): Non-destructive testing of residual stresses by magnetic methods under conditions of simple stressing. Russian Engineering Research, 36: 520–525. https://doi.org/10.3103/S1068798X16070157
 
Malanin V.I., Trofimov P.F., Maksimov A.A., Maksimov A.A. (2005): Method of Manufacturing a Cultivator Blade. RU Patent 2255452. July 10, 2005.
 
Matyuk V.F., Kulagin V.N. (2010): Control of the structure, mechanical properties and stress state of ferromagnetic products by coercimetry. Non-Destructive Testing and Diagnostics, 3: 4–41.
 
Skoblo T.S., Romaniuk S.P., Sidashenko A.I., Garkusha I.E., Taran V.S., Taran A.V., Pilgui N.N. (2018a): Strengthening method for thin-walled knives with multi-layer nanocoatings and quality assessment by non-destructive method. Journal of Advanced Microscopy Research, 13: 333–338.  https://doi.org/10.1166/jamr.2018.1399
 
Skoblo T.S., Sidashenko A.I., Rybalko I.N. (2018b): Stresses and degradation of structures formed in drill pipes during operation. Kharkiv, PromArt.
 
Skoblo T.S., Sidashenko O.I., Vlasovets V.M., Marchenko M.V., Pozdnyakov M.G., Syromyatnіkov P.S., Autukhov A.K. (2007): Non-destructive quality control by the magnetic method of agricultural machine parts during maintenance and repair: SОU29.32.-3-532.2007. Kyiv, The State Consumer Standard of Ukraine.
 
Skoblo T.S., Telyatnikov V.V., Sidashenko O.I., Tikhonov O.V., Rybalko I.M., Saychuk O.V., Marchenko O.Yu., Rovnyi, E.V. (2014): Method of Evaluation of Product Quality with Nondestructive Methods. UA Patent 95287. June 25, 2015.
 
Solomakha R., Pittala R.D., Bezlyudko G., Baskaran B.V. (2013): Practical evaluation of fatigue and stress state, and residual life of metal by non-destructive method for measuring magnetic characteristic "The coercive force" – A case study. In: Asia Pacific Conference on Non-Destructive Testing (14th APCNDT). Mumbai, India, Nov18–22, 2013: 1–9.
 
Volferc G.A., Maksimov A.A., Trofimov P.F. (2005): Method of Manufacturing a Cultivator Blade. RU Patent 2259267. Aug 27, 2005.
 
download PDF

© 2020 Czech Academy of Agricultural Sciences