Analysis Of The Retailoring Methods And The Workability Of Deposited Surfaces

V V Konovodov,E G Grigoryeva,K A Abdrasulov,A V Valentov

doi:10.1088/1757-899x/125/1/012035

Abstract

This work is devoted to the conduction of the analysis of methods and means of retailoring of parts in the conditions of technical repair facilities as well as of the workability of deposited surfaces. The results of the research show that the most important processing methods of reconditioning of component parts severely worn in the course of exploitation are various ways of deposit welding with subsequent mechanical handling. Furthermore, low efficiency of mechanical handling of retailored parts’ surfaces is conditioned on their low workability that results from the specific status of weld pad.

Highlights

For the purpose of rebuilding of the geometric shape, the dimensions, and the surface of component parts they use following process operations: building-up of surface layers of material onto the worn surface; soft mud shaping; replacement of a component part as well as mounting of additional elements with subsequent removal of a material part using a certain method of mechanical processing
The deposit welding is used for the reconditioning of component parts of agricultural machinery which are severely worn in the course of exploitation
Component parts of the type "splined shaft" are reconditioned through the use of a range of processes [3]: plastic working; short-circuit arc surfacing with plastic working; CO2 spline deposition on side surfaces; CO2 deposit welding or deposit welding under a flux layer through the helical line, while all of these methods are followed by mechanical handling of splined surfaces

Summary

Published under licence by IOP Publishing Ltd

"splined shafts" [2, 3] It is typical for undercarriage parts of cat tractors as well as work tools of agricultural machinery [3], while the building-up can be executed up to 10 mm. Lower track wheels of cat tractors are reconditioned using 12 methods; crank axles - 8; rolling axles - 3; journals - 7; splined surfaces - 15, etc. Component parts of the type "splined shaft" are reconditioned through the use of a range of processes [3]: plastic working; short-circuit arc surfacing with plastic working; CO2 spline deposition on side surfaces; CO2 deposit welding or deposit welding under a flux layer through the helical line, while all of these methods are followed by mechanical handling of splined surfaces

Reconditioning by means of polymers

Surfacing wire

Conclusions