Investigation of white layers formed in conventional and cryogenic hard...

Industrial Heating;  August 1, 2005 ;     237 words ...Although hard turning of steels has become an accepted...many surface integrity aspects of hard turning require clarification. The striking result of hard turning is the tendency for forming white...layers are often associated with residual tensile stresses leading to ...

Numerical and experimental investigation of shrinkage behavior of...

Polymer Engineering and Science;  August 1, 2008 ;     700+ words ...INTRODUCTION Birefringence, residual stress distribution, and shrinkage affect...satisfaction. Furthermore, the birefringence, residual stress distribution, and shrinkage/warpage...flow induced one. In contrast, the residual stress is mainly attributed by what is established...

Stress: diagnose it before it ruins your parts.(STRESS ANALYSIS)

Plastics Technology;  December 1, 2005 ;     700+ words ...Residual stress is an inherent result of plastics...films and bottles. But in most cases, residual stress is an invisible and insidious problem...temperatures. Some common causes of harmful residual stress in molded, thermoformed, and extruded...

2005 RESIDUAL STRESS SUMMIT

Experimental Techniques;  May 1, 2005 ;     140 words ...The second Residual Stress Summit will be held August 10 - 11 on...practitioners" and "experts" from the residual stress community, and to create a more cohesive group of residual stress practitioners in North America. There...

Reduction of residual stress leads to improvement in piezoelectrics.

Advanced Ceramics Report;  November 1, 2000 ;     468 words ......bending stress to offset the effects of residual stress in a thin film made of piezoelectric...devices, we can also put the effects of residual stress to work in a unique patterning process...films become thinner and thinner, the residual stress increasingly affects the ...

Hard turning, tool life, and surface quality

Manufacturing Engineering;  April 1, 2001 ;     700+ words ......search for replacement processes. Enter hard turning. Recent improvements in machine tool...machining of hardened steel. Even though hard turning consists of small depths of cut and...result of the increased flexibility of hard turning compared to grinding. Using fewer...multiple ...

An analysis of residual stress fields caused by shot peening

Metallurgical and Materials Transactions;  June 1, 2002 ;     700+ words ...In this article, the compressive residual stress field (CRSF) introduced by shot peening...show that the maximum of compressive residual stress field for a given material is almost...peening techniques and the surface residual stress values are dependent on both the mechanical...

View this Comprehensive Summary of Developments in the Processes and...

M2 Presswire;  September 5, 2005 ;     563 words ......Processes and Mechanisms of Welding Residual Stress and Distortion(C)1994-2005 M2 COMMUNICATIONS...Processes and Mechanisms of Welding Residual Stress and Distortion to their offering As...of the welded structure. Both weld residual stress and distortion can significantly impair...

California Inventors Develop Residual Stress Measurement System

US Fed News Service, Including US State News;  September 12, 2008 ;     333 words ......have developed a method for measuring residual stress. According to the U.S. Patent &...devices and methods for determining residual stress in microelectromechanical system...In one example, a device measuring residual stress of a deposited conduct material includes...

A new direction for turning

Manufacturing Engineering;  April 1, 2002 ;     700+ words ......productive form of hard turning that uses an insert...components display low residual stress in the axial direction...alternatives to grinding. Hard turning is performed on materials...economic benefits of hard turning, it helps to consider...

Proto Manufacturing Ltd.: Proto's equipment can determine residual stress...

Advanced Materials & Processes;  October 1, 2002 ;     554 words ......Over the years, it became clear that residual stress was involved in many of the quality...and reliable means of nondestructive residual stress measurement could be developed for...development effort to determine which residual stress measurement technique offered the...

Residual stress improvement of weldment by laser peening

Welding International;  August 1, 2006 ;     700+ words ......Consequently the improved efficacy of the residual stress extends to as much as a depth of 1...paper and the improving effects of residual stress when laser peening is employed for...of the impulse wave, so compressive residual stress is formed by the surrounding elastic...

INDUSTRY NEWS

Experimental Techniques;  January 1, 2004 ;     187 words ...HYTEC HOSTED RESIDUAL STRESS SUMMIT Los Alamos, NM was the...England and Canada attended the "Residual Stress Summit", sponsored by HYTEC...that were caused (or solved) by residual stress. A second day of presentations...

Residual stress measurement using the hole drilling method and laser...

Experimental Techniques;  May 1, 2003 ;     700+ words ......interferometer has been adapted for measuring residual stress. The technique is based on the hole...around the hole to a value of in-plane residual stress. In this 4-part series, we will describe...adapted specifically for measuring residual stress, an analysis technique, quantify ...

A Theoretical study of residual stress effects on fatigue life prediction

Tribology Transactions;  October 1, 2001 ;     700+ words ......the consideration of the changing residual stress during operation of the bearing. This...to investigate the time dependent residual stress on contact fatigue life predictions...study concluded that the changes in residual stress during operation were most likely...