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How to Roll Steel Conical Shells Without Distortion or Wrinkles
Rolling a conical shell is more demanding than rolling a straight cylinder. A cylindrical blank normally travels through the rollers in a relatively uniform path,
How to Design a Rolling to Welding Production Line for Cylinders
A rolling to welding production line connects plate rolling, workpiece transfer, seam closing, longitudinal welding and inspection into one controlled fabrication workflow. For HVAC ducts,
How to Diagnose and Correct Common Plate Rolling Defects in Cylinders
A rolled cylinder can look acceptable when it leaves the machine but still create problems at the next operation. A small cone shape can prevent
Minimum Rolling Diameter and Springback for Rolled Steel Cylinders
Minimum rolling diameter is one of the most misunderstood figures in cylindrical sheet metal fabrication. A machine specification may list a reference diameter, but that
HOGI Automatic rolling welding production line
(Standard configuration: CNC four-roll plate bending machine + lifting-type longitudinal seam welding machine; automated production line for shells/shell sections; suitable for fan casings, stainless steel
Common Troubleshooting and Routine Maintenance for Longitudinal Seam Welding Machines
Once a longitudinal seam welding machine is installed and running, its long-term performance depends more on how it is maintained and how quickly problems are