Using Water Jet Sand Garnet With Different Materials

Garnet water jet sand, chemical name aluminum (calcium) silicate, is a natural diamond sand selected from hard rock minerals. After manual drying, it is carefully crushed four times, washed with acid and water, and then sieved twice to separate into 60 mesh, 80 mesh, and 120 mesh abrasive particles.
Garnet water jet sand is a brownish red sand like uniform small particle with slight black impurities. Water jet sand has high hardness, moderate cutting ability, no free silicon, good toughness, sharp edges, fast cutting speed, and smooth cutting surface. It is the most ideal and economical high-pressure water jet cutting medium. 

1 . Product basic information:

2 . Specification

3 . Characteristics of Garnet water jet sand

(1) Strong wear resistance

(2) high melting point

(3) high specific gravity

(4) stable performance

4 . How to choose garnet model ?

 In waterjet cutting, the selection of garnet particle size needs to be comprehensively judged based on the material's hardness, thickness, brittleness, and cutting accuracy requirements. The differences in the characteristics of different materials, such as the ductility of metals, the brittleness of stones, and the interlayer structure of composite materials, determine the requirements for cutting force and seam width of sand particles. The following are the particle size ranges and selection logic corresponding to common materials:

   1,) Metal materials (steel plates, aluminum alloys, copper, etc.)
Metal materials have a certain degree of ductility, and when cutting, sand particles need to have sufficient impact force to "tear" the material, while balancing cutting accuracy and efficiency:
-Thin metal (thickness ≤ 5mm, such as thin steel plate, aluminum foil):
Suitable for * * 100-120 mesh * * fine-grained sand. Fine particle cutting force is concentrated, with narrow cutting seams (0.3-0.5mm), which can reduce material deformation (especially for soft metals such as aluminum alloys, avoiding "edge collapse" caused by coarse sand), and is suitable for high-precision cutting (such as electronic components and precision hardware).
-Medium thick metal (5-20mm, such as ordinary steel plates and copper pipes):
Suitable for 80-100 mesh medium grained sand. Balancing cutting force and accuracy, 80 mesh sand can provide sufficient kinetic energy to penetrate materials, and 100 mesh sand can control the cutting seam between 0.5-0.8mm, meeting the cutting needs of most structural components (such as mechanical parts and pipe openings).
-Thick hard metal (≥ 20mm, such as thick steel plate, stainless steel)  :
Suitable for * * 60-80 mesh * * coarse-grained sand. Coarse particles have a large mass and strong kinetic energy, which can effectively break through the shear strength of thick metals, and the cutting speed is faster (30% -50% more efficient than 100 mesh). If the precision requirement is slightly higher (such as ± 0.2mm), 80 mesh can be selected; If efficiency is emphasized, 60 mesh is better.

   2), Stone and ceramics (marble, granite, ceramic tiles)
This type of material has high brittleness and is prone to edge breakage, requiring even cutting of sand particles to avoid edge fragmentation:
-Thin plate stone (≤ 10mm, such as ceramic tiles and cultural stones):
Suitable for * * 100-120 mesh * * fine-grained sand. Fine particle impact is gentle, with neat cutting seams (especially for glazed tiles, which can reduce glaze peeling), and can meet high-precision cutting of complex patterns (such as mosaic stone).
-Thick slab stone (≥ 10mm, such as granite countertops and marble tombstones):
Suitable for 80-100 mesh medium grained sand. Medium particle cutting force is moderate, which can penetrate thick stone and control the edge collapse range (usually ≤ 0.5mm), while balancing efficiency and appearance (such as kitchen countertop openings).
-* * Special brittle stone materials (such as glass, microcrystalline glass) * *:
Suggest * * 120-150 mesh * * ultra-fine sand (with low water pressure). Ultra fine particles can reduce the impact stress on brittle materials and avoid cracking during cutting (such as fine cutting of glass crafts).

3) , Composite materials (carbon fiber, glass fiber, honeycomb board)
The interlayer structure of composite materials is fragile, and it is necessary to avoid interlayer delamination caused by coarse sand, while cutting the reinforcing fibers:
-Thin layer composite material (≤ 5mm, such as carbon fiber board, glass fiber cloth) * *:
Suitable for * * 100-120 mesh * * fine-grained sand. Fine particles can accurately cut fibers, and the cutting seam is narrow (0.3-0.6mm), reducing interference with adjacent layers (such as drone carbon fiber components).
-Thick layer composite materials (5-20mm, such as honeycomb panels and composite armor):
Suitable for 80-100 mesh medium grained sand. Medium sized particles can not only cut through coarse fibers, but also avoid the "insufficient cutting force" caused by excessively fine particles (preventing fiber residue and interlayer adhesion).
-Hybrid composite materials (such as metal plastic composite panels):
Suggest * * 80 mesh * * universal granularity. 80 mesh can simultaneously handle the ductility of the metal layer and the brittleness of the plastic layer, reducing cutting inconsistencies caused by differences in material properties (such as automotive composite interior panels).

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