Background Information
Application: Flowforming and Hot Spinning for Defense Applications
Part: Pressure Vessel Liner
Material: Maraging Steel
Before: Customer Requirements
Made from maraging steel
All welds require X-ray and magnetic inspection
Hydrotesting to 2300 psi
Machining operations require close tolerances on both ends of part
After: PMF Improvements
Flowforming allows for seamless construction, eliminating welds
The body is made from a machined preform, making it easier to obtain the required thickness and diameter specified.
The final part is machined and holes put in to very tight tolerances.