Kochergin I. Improvement of specialized re-adjustable bending dies in a discrete-volatile product release programs

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0412U002870

Applicant for

Specialization

  • 05.03.05 - Процеси та машини обробки тиском

23-05-2012

Specialized Academic Board

Д64.050.10

Essay

Object of research - bending sheet metal stamping operation. The purpose of research - is to expand the technological capabilities of specialized perenalahodzhuvanyh bending dies based on their choice of rational design and technological parameters in discrete-unstable software release products. Research methods: the method of least squares methods of static and dynamic tenzometruvannya, simulation method, the method of measuring linear dimensions. Theoretical and practical results: for metaloobroblyuvalnoyi industry is to develop methodological and practical guidance on the definition of rational parameters of elements perenalahodzhuvanyh specialized dies for bending parts to ensure their performance throughout the life, the decline in metal production and labor in the 1.5 - 2, 0 times. Scientific novelty: for the first time the analytical expressions for determining moving napivmatryts stamp depending on the size of the horizontal component of the efforts of stamping and the slope angle matrix surfaces and napivmatryts that combined, allowing them to establish rational design parameters, developed a comprehensive research-based approach to research and develop technology strengthening the application of coatings, with a resultant increase in half formoutvoryuvalnyh resistance elements of construction, scientifically grounded power load conditions in the U-shaped bend, allowing to set the value of force acting at different stages of formation of timber, for the first time the analytical dependence of wear resistance formoutvoryuvalnyh elements depending on geometrical dimensions of parts, material thickness, size extra gaps and radii rounded punches, which help us pruzhynennya parts and wear during operation of bending dies. Level of implementation: The thesis is introduced in DC "Malyshev Plant", JSC Scientific Production Enterprise "snap", DP "Kharkov Research Institute of Manufacturing Engineering." Industries: metal and machine-tool industry.

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