MEGASTIR IS A PREMIERE TOOL DESIGN &
FABRICATION COMPANY SPECIALIZING IN
FRICTION STIR WELDING

SEE OUR TOOLS IN ACTION

WATCH OUR VIDEO

HIGH-TEMPERATURE
FRICTION STIR WELDING

Because metals such as steel, stainless steel, and nickel-based alloys have high melting points, they have posed many challenges for friction stir welding.

Tools made from refractory alloys containing tungsten, hafnium, rhenium, molybdenum, niobium, and zirconium have high-temperature properties, but during friction stir welding, these elements either alloy with the material being friction stir welded or abrade and deposit tool material in the weld region after welding only a few centimeters

LOW-TEMPERATURE
FRICTION STIR WELDING

Friction stir welding for low-melting-point metals, such as aluminum and aluminum alloys, has been used in the aerospace, marine, and transportation industries for many years.

Benefits include low distortion, greater weld strength, little or no porosity, no filler metals, little or no post-weld repair, no solidification cracking, no welding fumes or gases, improved corrosion resistance, and lower cost in production applications.

WHAT SOLUTION IS RIGHT FOR YOUR PROJECT?

The right solution depends on your materials that need to be joined. One of our specialists can help you determine the BEST METHOD.

Tool Design

Megastir consists of a protruding pin which is plunged into the workpieces and the larger concentric shoulder which is maintained on the surface of the joint. When they rotate in contact with the base material, it creates friction heat, producing a local plasticized region around the tool.

A A series
SERIES
P P series
SERIES
H H series
SERIES
M M series
SERIES
Q Q series
SERIES
S S series
SERIES

Tool Holders

Megastir has made significant innovations in the friction stir welding process by creating and patenting tooltips made from PCBN to allow friction stir welding of harder metals such as steel and nickel-based alloys.

Friction Stir Welding Tool Holder 1
Friction Stir Welding Tool Holder 2
Friction Stir Welding Tool Holder 3

POLYCRYSTALLINE CUBIC BORON NITRIDE (PCBN)

PCBN IS A SYNTHETIC SUPER ABRASIVE MATERIAL (SECOND IN HARDNESS ONLY TO DIAMOND) THAT MEGASTIR CREATES IN ITS HIGH TEMPERATURE, ULTRA-HIGH PRESSURE PRESSES.

PCBN is an ideal material for high-temperature friction stir welding as it possesses excellent toughness plus an exceptionally high value of thermal conductivity and boats THE BEST thermal stability & hardness.

These qualities, especially when combined with ceramics and metals, making it a premier material for friction stir welding of high melting point metals. MegaStir has further optimized the abilities of PCBN in its MS-Series and Q-Series tools for the best durability and quality high-temperature friction stir welds.

TOOL GEOMETRY

PCBN is an ideal material for high-temperature friction stir welding as it possesses excellent toughness plus an exceptionally high value of thermal conductivity and boats THE BEST thermal stability & hardness.

These qualities, especially when combined with ceramics and metals, making it a premier material for friction stir welding of high melting point metals. MegaStir has further optimized the abilities of PCBN in its MS-Series and Q-Series tools for the best durability and quality high-temperature friction stir welds.

Bill Johnson Megastir Friction Stir Welding
Bill Johnson

MEET BILL

I am the Sales Manager for MegaStir group, and will be your initial contact.

I have been in the welding industry for over 30 years and involved with friction stir welding in different capacities from early 2001. We have a talented group that is ready to support your interests with technical materials and friction stir process expertise. Our products and services are based on almost 20 years of product development, research, and process implementation in every industry segment. We are eager to work together to explore how we can support you.

SCOPE PROJECT