- The French plant currently welds the shaft and wheels using the Inertia ( or frition ) welding process. When we change over to Skelmersdale, they will be welded using the newer Electron Beam welding process.
- A computer controlled Electron Beam produces a very closely controlled, consistent weld between the semi-finished shaft and wheel head. After welding, no stress relieving process is needed and minimal machining to achieve the finished SWA.
- After welding, the SWAs are 100% inspected by Ultra Sonic Testing of the welded area to ensure quality and reliability.
- The change over represents a considerable investement in new machinery and test equipment.
- Part number will change, but the SWA are totally interchangeable:
Old ( Inertia Weld ) New ( EB Weld ) 435243-0001 435737-0006 435243-0002 435737-0001 435243-0006 435737-0020 435257-0001 435922-0001 435257-0002 435737-0005 435257-0005 435737-0004 435368-0007 435922-0002 435406-0003 435737-0015 435406-0004 435922-0004 435406-0005 435922-0005 435406-0013 435737-0013 435406-0015 435922-0011 447890-0003 435737-0024 447900-0010 435922-0010 448941-0008 435737-0002 - The changes will take place as soon as existing stocks are exhausted. After that, any existing orders for old part numbers will be automatically changed over from you.
TREVOR CASS
Product Support Engineer
Allied Signal Turbocharger Aftermarket
