Electronics Incorporated - The Shot Peener - Shot Peening Library
Title: Thermomechanical Surface Hardening Raises Spring Life
Author: News Release
Source: TSP, Vol 13/Issue 2, Summer 1999
Publication year 1999
Document number: 1999085
Number of pages: 1
Abstract:
A thermomechanical surface hardening process that is said to provide an 80% increase in the durability of leaf springs over coventional stress peened components, has been
developed by Krupp Hoesch Federn GmbH, Germany. The new process combines shot peening and thermal treatment, which improves the surface characteristics of spring steels.
This is significant because the loads to which a spring is subjected are exerted most strongly on the surface of spring leaves. In many cases, the increased strength means
that one less leaf is needed in a three- or four-leaf assembly, resulting in savings much greater than the cost of the process.
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