Upset Forgings
Localized upsetting that increases cross-section right where a part needs it — forming integral heads, flanges, and collars on bar stock without welding or added material.
More metal exactly where the load is
Upset forging concentrates force along the axis of a heated bar, compressing and thickening a localized zone to increase its cross-section. That lets us grow an integral head, flange, collar, or shoulder directly out of the parent bar — no welded joint, no press-fit, no discontinuity in the grain.
Because the enlarged section is forged rather than assembled, the flow lines run continuously through the transition, giving upset components excellent strength right where they carry load or clamp. MTS Forge has produced upset work for drivetrain, valve, and fastener applications since 1986, all under documented ISO 9001:2015 control.
Where upset forgings excel
Ideal wherever a shaft or bar needs an enlarged, integral feature that must carry load without a joint.
Shafts and axles with integral collars and shoulders forged for high torque and fatigue duty.
Machine Manufacturers
Valve and fitting bodies with upset ends that seal and thread reliably under pressure.
Gas & Petroleum
Bolt, stud, and fastener blanks with forged heads for structural and heavy-duty joints.
Construction market
Process capabilities
- Localized upsetting to increase cross-section on round and profiled bar stock
- Integral heads, flanges, collars, and shoulders forged from the parent bar
- Carbon, alloy, and stainless steels across a broad size range
- Continuous grain flow through the upset transition for load-bearing strength
- Single or multi-blow sequences engineered to the finished geometry
- In-house heat treatment and rough machining to complete the part
- ISO 9001:2015 registered process control and traceability
The advantages of forging it in one piece
Integral, not welded
Heads and flanges are forged from the bar itself — no weld line to inspect or fail.
Uninterrupted grain
Flow lines run continuously through the upset, keeping strength high at the transition.
Cross-section on demand
We add material precisely where the part needs it and leave the rest lean.
Material efficient
Redistributing the parent bar avoids the waste of machining a large section from solid.
Built for fatigue
Forged transitions stand up to the cyclic loads shafts and fasteners see in service.
Certified control
Every run is documented under our ISO 9001:2015 quality system.
Ready to forge your next component?
Have a shaft, valve body, or fastener that needs an integral forged feature? Send your print and we'll quote the upset sequence and lead time.