Electronics Incorporated - The Shot Peener - Shot Peening Library
Title: A Strengthening Method for Metal Parts
Author: Teiji Suzuki and Tadao Sugano, C/o Honda Engineeri
Source: Patent, H6-217214
Publication year 1996
Document number: 1996127
Number of pages: 7
Abstract:
Honda Engineering, a subsidiary in the Honda group, has developed a new processing technology for improving gear strength using water jets. The new technology increases
strength by 25% or more, and treated gears have lives ten times longer than untreated gears. Honda will introduce the technology into a manufacturing plant in December and
plans to open the process to outside sale from 1997. The new process will allow transmissions to be made smaller while preserving gear strength. It involves heating the
gears to about 900 deg C then immediately cooling them. It then uses water jets instead of air as in conventional methods. Also, instead of using copper balls, which can
scar the surface, the technology uses glass beads.
--------------------------------------------
[Purpose] To improve surface smoothness and fatigue strength and to easily increase working efficiency.
[Structure] A mixture of water 16 and glass beads 20 is injected toward the bottom 30, of a gear 24 that has been machined by gear cutting. Therefore, glass beads 20 are
injected toward gear tooth bottom (land) 30 with directivtiy. Compression stress is thus provided to the surface of gear tooth bottom (land) 30 and the surface is polished
by these glass beads 20 and water 16.
Download full text pdf file
www.shotpeener.com
This page last revised: 04/24/2008