INVESTIGATION OF TENSE STATE OF CARBIDE INSTRUMENT AT TURNING TREATMENT OF RAILWAY WHEELS
Abstract and keywords
Abstract (English):
Purpose: Investigation of the tense state of carbide cutting instrument at turning treatment of railway wheels. Methods: Influence of temperatures and forces on wear and plastic deformation of hard alloy is estimated using mathematical modeling and Mitchell methods as well as on thermomechanical approach basis. Results: The stress-strain state of cutting plates was evaluated and the analysis of wear shape was carried out which revealed that increase in wear chamfer occurs along back surface mainly in the vicinity of cutter tip. It is shown that shape stability temperature and tangential tensity are the factors affecting treatment conditions and wear rate of cutting plate. Practical significance: Dependences have been determined that allow assigning rational modes of treatment of railway wheel pairs during repairment.

Keywords:
Wheel profile, cutting wedge, shape stability temperature, tangential tensities, deformation
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References

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