Dimensional Treatment by an Electric Arc of the Lateral Surface of a Guide Roller From a Composite Material Based on Relit
Journal Title: Центральноукраїнський науковий вісник. Технічні науки - Year 2018, Vol 31, Issue
Abstract
The article is dedicated to development of technology and equipment of rough machining method by electric arc of a guide roller side surface, as high performance alternative to traditional methods of rough machining. During operation, the damage to the surface of the hard alloys guide roller caliber occurs by abrasion and chipping of carbide particles. The development of net shaped roll marks occurs by the occurrence of hotbeds of accelerated cluster abrasion and chipping of smaller particles with subsequent growth of these areas and unification in a closed net shaped roll marks. The turned out particles of hard alloy leave the machining marks on the wire, in such a worn the hard alloy rolling roller does not meet the specified dimensions and it is reground to a smaller diameter by grinding of diamond tool on the rough machining stage. It is proposed on the stage of rough machining to remove the worn-out profile of a guide roller side surface with help of dimensional electric arc, which allows you to remove big allowances of material at the lowest treatment costs. It is suggested to get the lateral surface by dimensional electric arc with a given roughness of Ra = 10..20mkm, which allows you to take great allowances material at the lowest cost processing time.In this case, the processing cycle of hard alloy side surface decreased of 1,4…2,6 times. The justification of technical scheme of forming the guide roller side surface by electric arc sizing method is done taking into account features of physical formatting mechanism and hydrodynamic phenomena in the electrode gap. The analytical communication of technological characteristics of rough machining process by electric arc made of composite material, based on relit, with the modes of processing and geometric parameters are established. The obtained models allow to control the productivity and specific productivity, specific electricity consumption, quality and surface accuracy which is processed, predicted and optimized given characteristics. A technical solution is proposed that allows to expand the technological possibilities of processing the guide roller.
Authors and Affiliations
Oleh Sisa, Viktor Pukalov, Volodymyr Sviatskyi
Keywords
Related Articles
- EP ID EP509127
- DOI 10.32515/2409-9392.2018.31.96-103
- Views 67
- Downloads 0
Synthesis of Modal Control of Multidimensional Linear Systems Using Linear Matrix Inequalities
The paper gives a solution to the problem of constructing modal regulators for linear multidimensional systems that provide D-stability (asymptotic stability) of the control object. The control is represented as regulato...
Qualitative Characteristics of Heat Sources on Steel Electrodes
The electric arc is considered as the sum of three independently operating heat sources at the cathode, anode and arc column. At the same time, the qualitative characteristics (quality) of the heat source at the cathode...
Identification of the Linearized Model of Controller Dynamics and Danfoss Temperature Control Valve According to the Passive Experiment
Main purpose of the article is to provide designers and researchers with a dynamics models of a controller for refrigerating equipment with one thermal control valves in conjunction with a regulatory body.. This article...
Tribological characteristics of plasma-electrolyte layers in pairs with steels 45 and U8
Purpose of this work to probe the tribologichnu conduct of PEO glowed, synthesized on the easy alloys of AMg-6 and D16T in the clean mineral olive of I-20, with an appendix to it of the distilled water and water solution...
Разработка усовершенствованной конструкции тяговых двигателей постоянного тока для шахтных контактных электровозов
Статья посвящена анализу существующих способов охлаждения тяговых электрических машин рудничных электровозов, условий их эксплуатации в подземных выработках горнорудных предприятий. Рассмотрены известные конструктивные в...