The Compound Hob for Processing Gearbox Pinions Used in Hoist for Well Repairs

Артамонов, Е. В.; Kireev, V. V.

doi:10.4028/www.scientific.net/amm.770.469

AMM

2015

DOI: 10.4028/www.scientific.net/amm.770.469

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The Compound Hob for Processing Gearbox Pinions Used in Hoist for Well Repairs

Е. В. Артамонов¹,

V. V. Kireev²

Abstract: The following article contains simulation modelling of two different types of hobs: the one made according to GOST 9324-80, and a composite hob with progressive cutting method. Also it contains the results of research on deflected mode of removable cutting edges in gear treating cutter, performed with help of simulation modelling and Kompas-3D and ANSYS software.

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Cited by 4 publications

(2 citation statements)

References 9 publications

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“…The maximum cross-sectional area of the cut-off layer for a full-height mill is 2. Throughout article [16][17] the research for calculation of the intense deformed condition of the replaceable cutting plates with the full-height and progressive scheme of cutting was conducted. The experimental task of improvement of a final and element grid and influence of quantity of elements was carried out to grids on results of tension in WC-Co alloy with use of the program of the final and element analysis of ANSYS.…”

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confidence: 99%

Modeling of process of gear milling for definition of the intense deformed state in replaceable many-sided plates of a worm mill

2019

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The tool equipment plays an important role in work of machine-building enterprises. One of the most important elements of equipment is the metal-cutting tool [1]. Replacement of the tool from HSS of steel on the cutting tool with use of WC-Co [2-7] sintered hard alloys gives increase in productivity and overall effectiveness of processing [8-11]. When the cutting ability of material of the tool increases, the universality of its application decreases therefore the most rational is comprehensive research approach which considers design of the tool the used WC-Co hard alloy. Design, production and testing of the toothed cutting tools, working off of the modes of cutting have to be carried out concerning a specific work piece and its material. When developing this kind of the tool it is necessary to consider features of WC-Co alloy as the cutting material, the cutting modes, destruction of the tool and other moments connected with its use. Influence of an initial contour on distribution of tension in the replaceable cutting many-sided plate. Results of calculation of the intense deformed state in a replaceable plate from the material WC-Co. Zones of stretching and compression are observed on the main cutting edge. Concentration of the dangerous stretching tension is located in a transitional zone between the direct side cutting edge to top as in this zone there is the greatest constraint of cutting. Respectively, the greatest destruction will happen in this zone. Important, the fact that in this part of the cutting edge there will be the biggest wear on a back surface. The analysis of isolines of distribution of tension showed that the stretching tension along a front surface of the replaceable cutting plate decreases because each replaceable cutting plate cuts off the part of material. First, work is entered by the made narrower cutting plate which cuts off metal an upper part of the cutting plate, and then the underestimated cutting plate which works with the side cutting edges works. As a result of the conducted researches it was established that with the progressive scheme of cutting in comparison with the standard scheme of cutting at which the initial profile of the making rail is made on DIN3972 at gear milling, dangerous tensile stresses in the cutting hard-alloy plates significantly decrease.

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Modeling of process of gear milling for definition of the intense deformed state in replaceable many-sided plates of a worm mill

2019

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“…Gear milling of the tooth wheels is a laborious and complex process which imposes significant requirements to the tool because of variable loads [3][4][5].…”

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An interlocking side mill with retrofittable carbide blades for processing of coarse-pitch tooth wheels

2018

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Nowadays Russian manufacturers of metal-cutting tools for machine-building industry do not offer structures of prefabricated cutting hobs with retrofittable carbide blades for processing of tooth wheels, though usage of retrofittable carbide blades allows to increase significantly working capacity and productivity of the processing. As of today creation of an assembly cutting tool for processing of tooth wheels with the retrofittable carbide blades is a big step forward for machine-building industry. A high quality tool allows warranting for a new equipment and making work of operators more productive. This paper offers a new technical solution providing increase of efficiency of processing by assembly tools with the retrofittable carbide blades made of a hard alloy. Due to usage of progressive cutting patterns division of a margin for straight-line segments and curved sections is performed. This division has a positive impact on cutting hard-alloy inserts and also reduces their wear and tear.

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Influence of the cross-sectional area of the shear layer on the distribution of the zones of tension and compression in replaceable cutting inserts

Kireev

2019

IOP Conf. Ser.: Mater. Sci. Eng.

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As a result of the conducted researches it is established that with a progressive cutting scheme, the dangerous tensile stresses in the cutting carbide plates are significantly reduced. It was found that when using a worm cutter with a progressive cutting circuit, the dangerous tension of the tensile stresses on the front surface of the carbide plates is greatly reduced. Analysis of the obtained main stresses in the cutting wedge showed that the cutting edge experiences tensile stresses on the front surface, and compression on the front surface. It is established that the cutting element of the milling cutter undergoes an alternating asymmetrical nature of loading, accumulating cyclic fatigue in the main cutting edge.

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The Compound Hob for Processing Gearbox Pinions Used in Hoist for Well Repairs

Cited by 4 publications

References 9 publications

Modeling of process of gear milling for definition of the intense deformed state in replaceable many-sided plates of a worm mill

Modeling of process of gear milling for definition of the intense deformed state in replaceable many-sided plates of a worm mill

An interlocking side mill with retrofittable carbide blades for processing of coarse-pitch tooth wheels

Influence of the cross-sectional area of the shear layer on the distribution of the zones of tension and compression in replaceable cutting inserts

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