Results 301 to 310 of about 395,739 (367)

Prediction of residual stresses in the heat affected zone

Journal de Physique IV, 2004
In this paper the behavior of a disc made up of carbon manganese steel and subjected to an axisymmetric heating in its middle zone is considered. The applied thermal cycle generates localized metallurgical solid-solid phase transformations. Contrary to the study performed some years ago, the present work is concerned with relatively thick discs that ...
Petit-Grostabussiat, S., Taleb, L., Jullien, Jean-François   +2 more
openaire   +3 more sources

Heat-Affected Zones in Grinding Steel

CIRP Annals, 1994
Summary Two well known forms of metallurgical damage of ground surfaces involve untempered and overtempered martensite. Both of these forms of metallurgical damage involve martensitic transformations. This paper reviews the nature of such transformations and the special characteristics that pertain in grinding where the time at temperature before ...
A. Vyas, Milton C. Shaw
openaire   +2 more sources

Heat affected zone COD testing

Theoretical and Applied Fracture Mechanics, 1986
Abstract The paper focusses on additional COD test validity criteria which are seen as necessary to ensure the accurate assessment of heat affected zone toughness. Theoretical considerations indicate that it is necessary for the COD notch to intersect the heat affected zone for at least 8% of the specimen thickness in order to ensure accurate ...
G. Kohler, C. Chipperfield, R. Whitfield
openaire   +2 more sources

Analysis of heat affected zone (HAZ) during micro-drilling of a new hybrid composite

Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2020
In the present work, laser beam drilling of a fabricated basalt–glass hybrid composite has been done. From the experimental results, a safe machining zone pertaining to high drill quality with minimum heat affected zone and maximum hole-circularity has ...
Akshay Jain, Bhagat Singh, Y. Shrivastava   +2 more
semanticscholar   +1 more source

Recast layer and heat-affected zone structure of ultra-fined grained low-carbon steel machined by electrical discharge machining

, 2020
Ultra-fined grain materials are thermodynamically unstable and when they are exposed to a high external thermomechanical energy, such as electrical discharge machining process, many microstructural changes will occur in them.
M. S. Mahdieh
semanticscholar   +1 more source

Heat Affected Zone in Microwave Polymer Welding

Advanced Materials Research, 2016
This paper aims to present some specific aspects regarding the heat affected zone in microwave polymer welding. It presents several results of investigation of the physical and mechanical modification of the HDPE100 polymer when the microwave heating is applied.
Ionel Danut Savu, Sorin Vasile Savu, Gabriel Constantin Benga   +2 more
openaire   +2 more sources

Heat affected zones in polymer laser marking

Journal of Thermal Analysis and Calorimetry, 2013
Laser marking is based on the laser heating of the subjected material, the heating being below the melting temperature or thermal degradation starting point. Within and nearby the mark, the material is chemically, physically and mechanically affected.
Sorin Vasile Savu, Nicusor Alin Sirbu, Ionel Danut Savu   +2 more
openaire   +2 more sources

Simulated Heat-Affected Zone of Steel 4330V

Materials Performance and Characterization, 2019
Abstract Steel 4330V is a material that contains an addition of vanadium (approximately 0.06 wt. %). The steel is widely used in the mining and petroleum industries. The steel microstructure contains tempered martensite. The high carbon equivalent of the steel makes it difficult to weld.
Marcin Żuk, Jacek Górka, Wojciech Jamrozik   +2 more
openaire   +2 more sources

Heat Affected Zone Induced by Laser Forming

Volume 1, 2004
Laser forming induces mechanical and structural modifications around the Laser Scanning Path. Various conventional methods are currently available to estimate properties of materials like X-ray and neutron diffraction, strain/curvature measurement, hole drilling, layer removal, chemical etching, etc.
CASAMICHELE L, GISARIO, ANNAMARIA, TAGLIAFERRI V.   +2 more
openaire   +3 more sources

Heat Affected Zone in the MEMS Wire Bonding

2009 International Conference on Measuring Technology and Mechatronics Automation, 2009
In the wire bonding process of MEMS packaging, Heat Affect Zone (HAZ) is the important factor governing the loop profile of bonding. The height of loop is affected by the length of the HAZ. Factors governing the HAZ are studied. To investigate this relationship, the experiments were done for the various sizes of wire diameter and Free Air Ball (FAB ...
Lining Sun, Yanjie Liu, Yuetao Liu
openaire   +2 more sources