There
are different types of shock absorbers that are used in various small and
big industrial complexes. The shock absorbers reduce the vibrations and the
jerks and help in the smooth operation of the machines. Automotive industry
in particular uses huge quantity of shock absorbers. The competition and the
challenges faced by the automobile manufacturers had led them to develop
shock absorbers of durable quality and strength.
One of the most important type of shock absorber that is used by the
manufacturers is non-pressurized twin tube hydraulic shock absorber. This
shock absorber comprises of a cylinder with a piston moving inside it. The
piston on the other hand consists of orifices that enables the fluid to flow
between the compression and rebound chambers. The displaced oil is collected
in the storage tube whereas the heat so generated is dissipated to the
atmosphere.
There is no single machine or process that is utilized for the
manufacturing of twin tube hydraulic shock absorber. In order to understand
the things better lets discuss the manufacturing of individual components of
the shock absorber separately.
Casing
Tube
The casing tube is manufactured through the processes like Parting,
chamfering and engraving. The cap is pressed in the casing tube. The cap and
the tube is welded through seam welding. The machines popularly used are
Turn-o-mat, engraing machine and welding machine. The starting material for
the manufacturing of casing tube is ERW tube.
Storage Tube
The starting material for storage tube is also ERW tube. The manufacturing
of storage tube is similar to casing tube. That is its manufacturing too
involves processes like Parting, chemfering etc. The cap here is also
pressed in casing tube. Cap and the tube is welded together through seam
welding process.
Working Cylinder
The starting material for manufacturing of Working Cylinder is CRW tube.
The process involved for its manufacturing is Parting, calibration,
drilling, chamfering, and deburring. The machines involved in this venture
are Turn-o-mat, hydraulic press and drilling machines.
Piston Rod
Piston rod is an important component of the twin tube hydraulic shock
absorber. The starting materials for piston rod is ENB bright bar having
diameter between 10 mm to 20 mm. The manufacturing involves long processes
including Turning, drilling, deburring, grinding, induction hardening,
thread rolling etc. The machines involved in the process are drilling
machine, grinding machine, thread rolling machine and chromeplating.
Piston
For manufacturing piston, the starting material is semifinished Piston. The
process involved in its manufacturing are lapping and machining for
improving geometical accuracy. The main machine used here is lapping
machine.
Valves
Disk Valve is used as starting material. Whereas the process used are
Punching, Annealing and Shaping.
