Study of Stretching by Inner Surface for Increase of Efficiency of Manufacturing or Renovation of Parts of Stepwise Sleeve Type

Authors: Vorontsov A.L., Stupnikov V.P., Strat’ev V.K. , Balahontseva N.A. Published: 29.08.2013
Published in issue: #2(83)/2011  


Category: Production Process Procedures and Machines  
Keywords: stretching, inner surface of hollow blank, stepwise sleeve, optimal angles of taper of a punch, stresses

A theory of stretching by the inner surface of hollow blank is developed. The calculation formulas required for designing the technological process of such stretching which provides its efficient application are derived. High accuracy and reliability of the calculation formulas are validated by comparing to experimental data.