heat-affected zone

(redirected from Heat affected zone)
Also found in: Acronyms.

heat-affected zone

[′hēt ə¦fek·təd ′zōn]
(metallurgy)
The zone within a base metal that undergoes structural changes but does not melt during welding, cutting, or brazing.
References in periodicals archive ?
as output: seam shape, mechanical properties and properties of heat affected zone, etc.
Kerf width, surface roughness and size of heat affected zone are often used to describe laser cut quality.
The size of heat affected zone decreases with increasing cutting speed and the minimum value is achieved by the conditions: pressure of 10 bar, cutting speed of 2250 mm/min and focus position 0 mm;
The reduced heat affected zone from our cut means the fire department can use the fuel for extractions with less impact on human life in the vicinity of the cut.
The specimens welded by welding speed of 30 mm/s had excess weld width as well as the heat affected zone.
Due to the narrow laser beam and the small depth of the heat affected zone (HAZ) the temperature measuring is very exacting, since accurate placing of thermo--couples at the selected distance from the cutting front is extremely difficult.
PAC process was imposed especially due to the fact that it allows the cutting of high-alloy refractory and stainless steels with maximum of productivity, through the automation capacity, through the low expenses towards traditional techniques, and also due to the quality of the cut and low thickness of the heat affected zone (HAZ), within 1.
From its have been cutting test pieces with dimensions 50 x 5 x 12 mm notated: 1--test pieces from heat affected zone (zit 1 respectively 2), 2--test piece made with shielded metal arc welding (SMAW), 3--test piece made by gas tungsten arc welding process in argon inert protective atmosphere (GTAW).
Measuring the kerf width and width of heat affected zone was performed on the microscope, "Stem 2000--C ZEISS" with magnification of 10x.
The control was done by visual examination with loops and adequate measuring instruments and has been remarked the appearance of heat affected zones and possible distortions arising due to overheating.
As part of its overall strategy to grow fuel sales, MagneGas has identified fire departments and first responder units as ideal customers for the use of its fuel due to the speed of the MagneGas cut, reduction of the heat affected zone and flexibility of use.
Plasma cutting of stainless steel alloys is producing a Heat Affected Zone (HAZ) which is characterized by a thin layer of resolidified metal joining the cut edge.