We have developed several processes that can improve welding and wear performance utilizing CMT Technology
The above photo shows the CMT process utilizing Postle’s Tubeweld NCMT to rebuild the O.D. of tubing upsets.
The above photo is of the CMT process utilizing Postle’s Ultraband NM to protect non-mag tools.
The above photos are of slip cuts that have been prepped for welding and then of the CMT process welded and ground flush for the completed repair.
In many industries, newer forms of welding technology have made
advancements in material capabilities that previously weren’t possible.
For over 2 years, Postle Industries has been evaluating these welding
technologies and conducting a comprehensive evaluation to determine
what advantages may exist for oil & gas drilling tools and wear
protection. Our conclusion is that CMT (Cold Metal Transfer) welding
technology can offer significant benefits. In this bulletin, we won’t be
able to delve into the welding technology of CMT, but can give an
overview of its benefits and what it can offer to wear protection.
Benefits of the CMT welding process:
• Lower welding heat – this means that welding can be done on
thinner materials without significantly harming the integrity of
the welded part
• Less Dilution – due to lower heat, less of the parent material is
melted and therefore doesn’t dilute the weld puddle like
conventional welding
• Higher Deposition – again, due to the advanced technology of
CMT the weld material deposition rate is increased
The advancements in CMT along with the innovation that Postle has
been able to realize with the equipment has been made possible
through the development of a synergic line that operates the CMT
equipment. This synergic line was developed specifically for Postle
and works well with Duraband along with our other metal cored wires
for oil & gas procedures.
There are several procedures that have been developed by Postle that
utilize CMT welding equipment and Postle’s synergic line which
include:
• Rebuilding of tubing upsets utilizing Postle’s Tubeweld NCMT
wire developed for this specific application
• Hardfacing non-mag tools utilizing our Ultraband NM wire
• Repair of tubing slip-cuts with Tubeweld NCMT
These procedures existed previously with conventional welding, but
have been modified and improved due to the weld control that is
possible with CMT.
We are able to provide CMT welding capabilities on our SKYE
hardbanding equipment or provide equipment to retrofit an existing
unit.
