Strength of Laser Weld before/after Heat Treatment
Strength of Laser Weld before/after Heat Treatment
(OP)
Hi,
I would like to know whether there is any difference in the weld strength if
a) welding without any heat treatment
b) welding after heat treatment
c) welding prior to heat treatment
and what's the reason?
Thanks & Regards.
I would like to know whether there is any difference in the weld strength if
a) welding without any heat treatment
b) welding after heat treatment
c) welding prior to heat treatment
and what's the reason?
Thanks & Regards.





RE: Strength of Laser Weld before/after Heat Treatment
It depends on the strengthening mechanism.
In general, (C) will give you the least variation in properties across the weld. This is considered the 'right' way to do it, but it may not be required.
You need to know more details before you can evaluate A & B.
= = = = = = = = = = = = = = = = = = = =
Corrosion never sleeps, but it can be managed.
http://www.trenttube.com/Trent/tech_form.htm
RE: Strength of Laser Weld before/after Heat Treatment
However it is the question that is inappropriate.
You may have the case of solution treated and aged aluminum alloys sheets (2xxx and 7xxx) that can only be resistance welded after heat treatment.
So it is also a question of process, not only of material.
http://www.welding-advisers.com/
RE: Strength of Laser Weld before/after Heat Treatment
Thanks for your replies. The material that that I'm welding is SS 17-4. I believe (C) will give the strongest weld. But how about comparing (A) and (B)? Which one do you think will give a stronger weld?
Thanks & Regards.
RE: Strength of Laser Weld before/after Heat Treatment
thread725-110139
From my brief review of information, for 17-4PH material you could possibly need to perform post weld heat treatment, depending on your design requirements. The things you do have going with the laser is no filler metal and it is a highly localized heat input.
RE: Strength of Laser Weld before/after Heat Treatment
RE: Strength of Laser Weld before/after Heat Treatment
The web site below provides information on 17-4PH stainless steel. When you click on the web site, find the precipitation hardening stainless steels and search for 17-4PH. In most cases, it is desriable to weld in a solution heat treated condition (A) followed by
I would recommend you review this information to understand the various strength levels and heat treatment options. Your post is too open ended to provide any direction.
RE: Strength of Laser Weld before/after Heat Treatment
htt
(there are other web sites for this material, as well).
For the best results, it is desirable to weld in Condition A and heat treat to the specified H condition.
I have used conventional welding techniques where the material was H1100 prior to welding, and after welding, we had performed a post weld heat treatment using the H1150M heat treatment.