Comments on: Which of the welding has highest HAZ? http://www.qtooa.com/which-of-the-welding-has-highest-haz/ A place to share knowledge and better understand the world Sat, 14 Sep 2019 13:00:04 +0000 hourly 1 https://wordpress.org/?v=4.9.25 By: Ravi Ranji http://www.qtooa.com/which-of-the-welding-has-highest-haz/#comment-87 Thu, 03 Jan 2019 20:17:27 +0000 http://www.qtooa.com/which-of-the-welding-has-highest-haz/#comment-87 There are two reasons behind for higher HAZ

Heat input rate
Speed of welding

You doing welding in ATM temp , that mean NORMALIZING process.
Case 1
If heat input rate is High with constant speed HAZ is High
Compare to lower heat input rate

Case 2

If heat input rate is constant but speed of welding is less then optimum speed of this heat input rate  HAZ is High

These conditions only HAZ can developed drastically

So it’s not depend upon welding process , it’s depends only size of weld bead , and skilled labour

]]> By: Nadeem http://www.qtooa.com/which-of-the-welding-has-highest-haz/#comment-67 Sun, 18 Nov 2018 16:00:11 +0000 http://www.qtooa.com/which-of-the-welding-has-highest-haz/#comment-67
The heat-affected zone (HAZ) is the area of base material, either a metal or a thermoplastic, which is not melted but has had its microstructure and properties altered by welding or heat intensive cutting operations.
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