Dump Truck Leaf Spring

Leaf Spring Process:

Multi-leaf springs are made as follows: 
1.Shearing of flat bar 
2.Center hole punching / Drilling 
3.End Heating process    
(1).Eye Forming / Wrapper Forming forming (hot & cold process)   
(2).Diamond cutting / end trimming / width cutting / end tapering
(3).End punching / end grooving / end bending / end forging / eye grinding
(4).Center hole punching / Drilling / nibbing
4.Heat Treatment   
(1).Heating
  (2).Camber forming
  (3).Quenching
  (4).Tempering
5.Surface preparation   
(1).Shot peening / stress peening
  (2).Painting
6.Eye bush preparation process   
(1).Eye reaming / eye boring
  (2).Bush insertion
  (3).Bush reaming
7.Assemble   
(1).Presetting & load testing
  (2).Paint touch-up
  (3).Marking & packing