A roll chock is a specialized component within a rolling mill that provides stable housing and support for the bearings of the rolling mill's rolls, maintaining their precise position and transmitting forces during the metal rolling processes. These processes are responsible for shaping steel, aluminum, or other metal products during hot or cold rolling operations.
Heavy-duty operation in steel mills often leads to wear on bearing surfaces. Using laser cladding repair, we precisely rebuilt the worn areas and restored the original dimensions and fit.
Upon arrival in our shop, the ID or bearing surface was badly damaged, which likely occurred during bearing extraction.
Damaged roll chock IDThe ID was also covered in 0.060" per-side of a thermal spray coating, which we removed along with enough material to smooth out the gouges. Then we build it back up using laser cladding.
To watch the process: click here
PART/PROCESS INFO
Component: Roll Chock
Weight: Approx 5,200 LBS
Diameter: approx. 25"
Turnaround Time: 7 days
Work Performed: pre machining, laser cladding, TIG welding
Material Added: 410SS
ADVANTAGES
Metallurgical Bond - The intense, focused heat of the laser metallurgically bonds the substrate with the overlay. This bond offers minimal dilution of the base material (unlike other arc welding processes) - meaning that minimal substrate material will be present in the surface coating, maximizing the mechanical properties of the overlay material.
Reduced In-Service Downtime - Improved mechanical properties of the coating ensures maximum wear resistance. This means the roll chock wears down slower, allowing it to stay in service longer.
ABOUT US
For more than 40 years, Fusion Industrial Laser Services and our parent company Whitfield Welding Inc. has provided high-value repair, refurbishment, and part enhancement using cutting-edge laser and welding solutions for our customers in the automotive, mining/exploration, oil & gas, energy, aerospace, and defense industries.