ROBOTIC ACTIVATED COMBUSTION (AC) HVAF
HVOF
DC PLASMA SPRAYING
TWIN WIRE ELECTRIC ARC SPRAYING
ROBOTIC PLASMA TRANSFERRED ARC WELDING (PTA)
ELECTROSLAG STRIP CLADDING
MIG/PULSE MIG WELDING
OPEN-ARC AND SUBMERGED-ARC WELDING

ROBOTIC ACTIVATED COMBUSTION (AC) HVAF
Activated Combustion High Velocity Air Fuel spray systems are the latest technology improvement in high velocity, high density, wear-resistant coatings in the thermal spraying industry. Avweld are currently the only company in Australia with the latest technology improved version of this process. Technical features of the process include powder particle speeds of up to 800m/sec, very low oxygen content in metallic coatings as a result of no pure oxygen in the combustion and low temperature flame below particle melting temperatures resulting in no dissolution of carbides in the deposit ensuring longer coating life.
Benefits of this process are extremely dense and hard coatings, high deposit efficiencies, high spray rates and the ability to deposit an extremely wide range of both metallic and carbide materials to achieve an extremely wear resistant deposit in almost any application.
Added to the process benefits are the extra refurbishment benefits of being able to operate this system attached to our 7-axis robotic spraying cell to ensure repeatability and accuracy of deposit.

HVOF
High Velocity Oxygen Fuel process spray systems were first developed around 30 years ago for use in the aviation industry. Primarily used for the deposition of tungsten and chromium carbide coatings for wear resistance, there have been many different versions of this process manufactured during this time.

DC PLASMA SPRAYING
Since the introduction of High Velocity spray systems plasma spraying has predominantly been used for the deposition of ceramic coatings for corrosion and wear resistance. The extremely high flame (plasma) temperature of between 10,000 and 15,000 degrees C is the only process commercially available with the heat to melt ceramic particles and hence achieve a sound ceramic coating.

TWIN WIRE ELECTRIC ARC SPRAYING
The “workhorse” of the Thermal Spraying Industry, arc spraying is a simple, repeatable economical method of applying coatings for dimensional restoration and wear protection.
The system operates by creating an arc between the ends of two wires and then atomizing that molten pool with a blast of high pressure compressed air. The coatings applied have a high bond strength and a wide range of physical characteristics.

ROBOTIC PLASMA TRANSFERRED ARC WELDING (PTA)
PTA welding/cladding creates a high temperature and very focused arc between the torch and the work-piece. A plasma-forming gas is then passed through this arc to “superheat” the environment at which point the powdered consumable is fed into the arc, melted and is then deposited onto the work-piece as a layer of weld.
Used primarily for depositing high alloy materials of cobalt, tungsten and nickel with the process characteristics of excellent control, low dilution and high application speeds possible.
Add to these  process benefits the advantages introduced by the use of the Avweld 9-axis robotic manipulation system and you have the ultimate surfacing tool to provide cladding for many different applications.

ELECTROSLAG STRIP CLADDING
A relatively new process in the Australian market, this process allows the application at very high rates of deposition (up to 35-40kg/hour) of a large variety of metal cladding alloys onto heavy components and vessels in the process and mining industries. Avweld have recently installed this process in-house (the first job-shop in Australia to have this facility) and can offer the capability of applying large quantities of cladding material economically and quickly.

MIG/PULSE MIG WELDING
The Mig process of welding with wire has been around for many years and provides a reliable method of fabrication at high rates of deposit. By using the Pulsed version of this process we are able to significantly reduce the levels of dilution when applying high alloy materials of cobalt and nickel base thus reducing the need for extra buildup thickness and helping to reduce the cost of repair.

OPEN-ARC AND SUBMERGED-ARC WELDING
These two processes allow the application of a large variety of alloys economically and at reasonable rates of deposition. Used primary as cladding (but can also be used for fabrication under some conditions) Avweld has a significant degree of expertise in this area with access to our robotic welding cell to enhance the quality and accuracy of the deposit.