Following are materials used as abrasive in AJMM:
1) Al₂O₃: For cleaning, cutting and de-burring
2) SiC: Similar applications as Al₂O₃ but for harder work materials
3) Glass beads: Matte finish
4) Sodium Bicarbonate: Cleaning, cutting and de-burring of soft material.

The depth of penetration varies inversely with stand-off distance. In AJM, generally, abrasive particles of around 50 ?m grit size would impinge on work material at a velocity of 200 m/s from a nozzle of I.D. of 0.5 mm with a stand-off distance of around 2 mm.

Due to powder compaction, cavities often form in vicinity of orifice, likely causing variations in powder mass flow rate as cavity walls collapse randomly, injecting bursts of powder into nozzle.

Especially at normal impact angle, particles tend to embed in material, resulting in an initial gain in weight of specimen. After this incubation time steady-state erosion is established and mass loss from eroded material is proportional to amount of abrasive particles.

Following are few advantages of AJMM;
? The process generates no heat and does not change material properties of work-piece
? Very high pattern densities are possible
? Process works well with metalized parts
? Features can be of any 2D shape: square, round, designed shapes, and connected channels.

Or approaches to control of powder mass flow rate include vibratory and screw or auger feeding in which powder is fed to conveying air through an auger (similar to tool used for boring earth).

Magnetic Float Polishing is a technique based on Magnet on hydrodynamic behaviour of magnetic fluid which in presence of magnetic field can levitate a non-magnetic float and abrasive particles suspended in it.

Elastomer foils are easy to pattern and allow a high complexity of design but procedure is somewhat time consuming. They are not suitable for high air pressures due to ir elastic deformation behaviour.

The resulting erosion of target material can be controlled using masks and by varying parameters such as impact angle and particle flux density, velocity, and particle properties.

In contrast to ductile or brittle materials, elastomers behaviour is dependent on temperature, rate of deformation and particle velocity. Thus elastomers can show ductile, elastic and brittle behaviour.