Heat Affected Zone (HAZ)
What is a Heat affected zone?
Heat Affected Zone is the surface area of oestrus spread over the surface of base of operations metallic when the base of operations metallic is welded.Heat affected zone:
Heat Affected Zone is the surrounded surface area of the master copy metallic which is side yesteryear side to the weld area, when the metallic undergoes to high oestrus at the fourth dimension of welding or cutting the surrounded zone gets to oestrus final result in addition to may loss their metallic properties. If in that place is whatsoever function done on oestrus affected zone alongside a abrupt alter inwards oestrus or cool the micro construction of the cloth may changes.
Effects of Heat Affected Zone:
If nosotros are welding a cloth which has less thickness in addition to therefore the oestrus affected zone surface area increases. merely nosotros tin decrease the surface area of oestrus impact yesteryear increasing the speed of welding.The surface area which is affected yesteryear oestrus may changes it's properties according to the cooling procedure inwards the weld area. in addition to when compared to the oestrus affected zone the remaining cloth has high pull in addition to hardness.
We tin command the surface area of oestrus affected zone yesteryear increasing the charge per unit of measurement of cooling.
Heat affected zone plays a major component inwards the weld metals, because welded metals function nether high temperatures may gets to slowly impairment in addition to unopen to tin withstand to high temperatures, in addition to unopen to tin behave huge loads without whatsoever bending stress inwards it.