Substantiation of parameters for the technological process of restoring machine parts by the method of plastic deformation

Dudnikov, Anatolii; Dudnik, Vladimir; Ivankova, Olena; Бурлака, Олексій Анатолійович

doi:10.15587/1729-4061.2019.156779

Cited by 4 publications

(4 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In this case, load on the part material is shock-like which contributes to the reduction of material deformation. This fact was confirmed by previous studies [17].…”

Section: Discussion Of the Results Obtained In Improving The Wear Ressupporting

confidence: 91%

Improving the technological process of restoring the tillage machine working parts

Dudnikov

Gorbenko

Kelemesh

et al. 2020

EEJET

Self Cite

View full text Add to dashboard Cite

show abstract

“…In this case, load on the part material is shock-like which contributes to the reduction of material deformation. This fact was confirmed by previous studies [17].…”

Section: Discussion Of the Results Obtained In Improving The Wear Ressupporting

confidence: 91%

Improving the technological process of restoring the tillage machine working parts

Dudnikov

Gorbenko

Kelemesh

et al. 2020

EEJET

Self Cite

View full text Add to dashboard Cite

show abstract

“…The restoration of wornout parts allows to reuse the exhausted resource of the part, thanks to the use of effec tive restoration technologies [7,8].…”

Section: Research Of Existing Solutions To the Problemmentioning

confidence: 99%

Increasing the resource of agricultural machines

Dudnikov

Dudnyk

et al. 2021

TAPR

Self Cite

View full text Add to dashboard Cite

The object of research is the technological process of increasing the service life of pointed cultivator shares of tillage machines through the use of a progressive method of vibration hardening. One of the most problematic areas is the inadequate study of the investigated technological process of restoring the working bodies of agricultural machines. In order to gain a deeper understanding of the process of vibration processing of the material of these machine parts during their restoration, it is necessary to conduct further experimental studies. In the course of the study, it has been found that the use of vibration deformation of the surface layer of the material of parts contributes to an increase in their resource. The optimal parameters of vibration hardening of the cutting elements of the cultivator shares of tillage machines have been determined, which makes it possible to increase their durability. The main parameters of vibration hardening are revealed: the vibration amplitude of the processing tool is 0.75 mm; vibration frequency – 1400 min–1; hardening time – 30 s. As a research result, the assessment of the change in linear wear along the width of the cutting element of the cultivator duckfoot of tillage machines was carried out. In cultivators with tines restored by welding angle plates made of 45 steel (GOST 1050-2013, GB 699-88), sormite surfacing and vibration hardening, the linear wear rate by weight of cutting elements is 35–43 % less than in new tines. A study of changes in the wear of the cutting edge of cultivator shares was carried out, which, when restored by welding corner plates made of steel 45 (GOST 1050-2013, GB 699-88), surfacing with sormite and vibration hardening, is 1.57–1.68 times less than in new shares. In comparison with existing technologies, the developed technology provides a reduction in the wear of cutting elements by 10–17 %, in comparison with new ones made of 65G steel (GOST 14959-2016, GB 1222). The coefficient of technical utilization of the cultivator with tines restored according to the developed technology, in comparison with the new ones, is 1.07 times higher.

show abstract

“…To develop a recovery technology with subsequent hardening, a number of technologies and articles by scientists were studied, who recommended one or another method for justifying regimes [5,6]. Taking into account the operating conditions of the bulldozer in which friction occurs in the "metal-abrasive" system, it is advisable to apply surface hardening methods with the recommended processing depth and appropriate hardness.…”

Section: Introductionmentioning

confidence: 99%

Technology of hardening surfaces of working bodies by electromechanical processing

2023

View full text Add to dashboard Cite

The article presents the results of research on technology development and substantiation of the modes of strengthening the working surfaces of earth-moving machines by the electromechanical method. The types of wear and the appearance of defects on the working surfaces of the part are analyzed, taking into account the operating conditions. Based on the conducted studies on the study of surface wear, the arithmetic mean values were determined using the example of a plowshare of a bulldozer blade. A technology for restoring a part with subsequent electromechanical hardening has been developed. The influence of processing modes on the surface hardness was studied, and using a multifactorial experiment, a regression equation was identified, and optimal hardening modes were substantiated.

show abstract

Substantiation of parameters for the technological process of restoring machine parts by the method of plastic deformation

Cited by 4 publications

References 6 publications

Improving the technological process of restoring the tillage machine working parts

Improving the technological process of restoring the tillage machine working parts

Increasing the resource of agricultural machines

Technology of hardening surfaces of working bodies by electromechanical processing

Contact Info

Product

Resources

About