seminar code
07-08-2014, 10:27 AM
Abrasive Jet Machining
What is abrasive jet machining ?
It is the material removal process where the material is removed by high velocity stream of air/gas or water and abrasive mixture .
An abrasive is small, hard particle having sharp edges and an irregular shape .
High velocity jet is aimed at a surface under controller condition .
abrasive delivery system
Auto abrasive delivery system has the capability of storing abrasive & delivery the abrasive to the bucket . It’s works auto programming system by help of once measuring record & no adjustment or fine tuning system . High sensitive sensor gives extremely reliable & repeatable .
Control system
The control algorithm that computes exactly how the feed rate should vary for a given geometry in a given material to make a precise part .
The algorithm actually
determines desired variation
in the feed rate & the tool
path to provide an extremely
smooth feed rate
pump
Crankshaft & intensifier pump are mainly use in the abrasive jet machine .
The intensifier pump was the
only pump capable of reliably
creating pressures high .
Crankshaft pumps are more
efficient than intensifier pumps
because they do not require a power robbing
hydraulic system ultra high pressure & more stroke per minute .
nozzle
All abrasive jet systems use the same basic two stage nozzle . First , water passes through a small diameter jewel orifice to form a narrow jet .
The abrasive particles are accelerated by the moving stream of water & they pass into a long hollow cylindrical
ceramic mixing tube.
Generally two type of nozzle
use , right angle head &
straight head
Motion system
In order to make precision parts , an abrasive
jet system must have a precision x-y table and
motion control system .
Tables fall into three general categories .
Floor-mounted gantry systems
Integrated table/gantry systems
Floor-mounted cantilever systems
working process
High pressure water starts at the pump , and is delivered through special high pressure plumbing to the nozzle .
At the nozzle , abrasive is introduced & as the abrasive/water mixture exits , cutting is performed .
Once the jet has exited the nozzle , the energy is dissipated into the catch tank , which is usually full of water & debris from previous cut .
Types of abrasive materials
Different types of abrasive are used in abrasive jet machining like garnet , aluminum oxide , olivine , silica sand , silicon carbide ,etc .
Virtually any material can be cut by using abrasive jet machining method , i.e harder
materials like titanium to steel.
Abrasive particles must be hard ,high toughness,
irregular in shape & edges should be sharp
conclusion
The better performance , and the applications represented above statements confirm that
ABRASIVE JET MACHINING is continue to expand .
The new software’s used to minimize time and investments , there by making it possible for more manufacturers of precision parts to install AJM centers
What is abrasive jet machining ?
It is the material removal process where the material is removed by high velocity stream of air/gas or water and abrasive mixture .
An abrasive is small, hard particle having sharp edges and an irregular shape .
High velocity jet is aimed at a surface under controller condition .
abrasive delivery system
Auto abrasive delivery system has the capability of storing abrasive & delivery the abrasive to the bucket . It’s works auto programming system by help of once measuring record & no adjustment or fine tuning system . High sensitive sensor gives extremely reliable & repeatable .
Control system
The control algorithm that computes exactly how the feed rate should vary for a given geometry in a given material to make a precise part .
The algorithm actually
determines desired variation
in the feed rate & the tool
path to provide an extremely
smooth feed rate
pump
Crankshaft & intensifier pump are mainly use in the abrasive jet machine .
The intensifier pump was the
only pump capable of reliably
creating pressures high .
Crankshaft pumps are more
efficient than intensifier pumps
because they do not require a power robbing
hydraulic system ultra high pressure & more stroke per minute .
nozzle
All abrasive jet systems use the same basic two stage nozzle . First , water passes through a small diameter jewel orifice to form a narrow jet .
The abrasive particles are accelerated by the moving stream of water & they pass into a long hollow cylindrical
ceramic mixing tube.
Generally two type of nozzle
use , right angle head &
straight head
Motion system
In order to make precision parts , an abrasive
jet system must have a precision x-y table and
motion control system .
Tables fall into three general categories .
Floor-mounted gantry systems
Integrated table/gantry systems
Floor-mounted cantilever systems
working process
High pressure water starts at the pump , and is delivered through special high pressure plumbing to the nozzle .
At the nozzle , abrasive is introduced & as the abrasive/water mixture exits , cutting is performed .
Once the jet has exited the nozzle , the energy is dissipated into the catch tank , which is usually full of water & debris from previous cut .
Types of abrasive materials
Different types of abrasive are used in abrasive jet machining like garnet , aluminum oxide , olivine , silica sand , silicon carbide ,etc .
Virtually any material can be cut by using abrasive jet machining method , i.e harder
materials like titanium to steel.
Abrasive particles must be hard ,high toughness,
irregular in shape & edges should be sharp
conclusion
The better performance , and the applications represented above statements confirm that
ABRASIVE JET MACHINING is continue to expand .
The new software’s used to minimize time and investments , there by making it possible for more manufacturers of precision parts to install AJM centers