Effect of Technological Factors on the Quality of the Cylinder Face of a Diesel Engine

Yamnikov, A. S.; Safarova, L. L.

doi:10.3103/s105261882012016x

Cited by 1 publication

(2 citation statements)

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“…The theoretical studies described in [7][8][9][10][11] gave grounds to replace two operations, diamond boring on the "1R-ST95" machine and the honing operation on the "3822OP40" vertical honing machine in the basic technological process with one operation -double boring on the ARS-4C boring machine with CNC, the refinement at each position of which was εbor = 10, the total refinement, respectively, εΣ = 10 • 10 = 100, that is, 5 times higher than in the basic version of the technology.…”

Section: Justification Of Rational Technologymentioning

confidence: 99%

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Technological prerequisites for the energy efficiency increase of the engine cylinder bore processing

Safarova¹,

Malikov

Yamnikov

et al. 2021

E3S Web Conf.

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An example of the rationalization of the current technology for manufacturing a cylinder of a small-sized diesel engine at PA “TULAMASHZAVOD” from a cast iron is given. It is shown that lowpower obsolete equipment leads to an increase in the number of technological operations and equipment used. However, even if all the generally accepted technological recommendations are followed, only 80% of the parts meet the requirements for the required parameters of accuracy and quality of the cylinder bore surface. Studies have found that the main reasons for insufficient quality are the presence of residual stresses in the casting, which cannot be removed during artificial aging, as well as insufficient accuracy and rigidity of metal cutting equipment at turning and boring operations. The use of more powerful and accurate modern equipment is theoretically and experimentally justified, which, due to increased refinement, allows reducing the number of machining operations. Replacement of artificial thermal aging by natural, combined with the replacement of shaft furnaces for heat treatment of workpieces with chamber furnaces of lower power and higher capacity, reduce energy consumption for the manufacturing by almost 4 times.

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Section: Justification Of Rational Technologymentioning

confidence: 99%

“…However, sometimes a change in the complex technological process of manufacturing, usually aimed at reducing the labor intensity of processing by using new, more powerful equipment, can simultaneously save the total energy costs [7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%