Say Goodbye to Random Distribution: Arix Technology Enables Uniform Diamond Arrangement for More Precise Drilling

In conventional manufacturing processes for diamond core drill bits, diamond grits are typically mixed directly with metal powders before pre-pressing or sintering. This random distribution method has inherent limitations: in areas where diamonds are densely packed, the matrix cannot provide sufficient holding force, causing particles to detach prematurely without effectively participating in cutting; in areas with sparse diamond concentration, individual grits bear excessive loads and are prone to fracturing under impact. Both scenarios lead to premature bit failure. Although the industry has attempted to improve uniformity by adding alcohols, liquid paraffin, or metallic chains during mixing, these methods cannot fundamentally solve the problem of diamond segregation within the matrix.

The transition to ordered arrangement brings fundamental improvements. In conventional randomly distributed bits, some diamonds overlap or cluster too densely to effectively participate in cutting; in ordered bits, every diamond is placed where it can fully contribute to rock fracture, ensuring that all grits are actively engaged in the work.

Research data confirms these advantages. Under identical footage conditions, ordered drill bits show a 23% higher drilling efficiency compared to randomly distributed bits. Further studies indicate that drilling rates can increase by up to 30%, while bit life can be extended by as much as 85%. In field applications, ordered‑arrangement (ARIX‑type) segments have demonstrated drilling speeds roughly 30–50% faster than random–distribution segments, with service life improvements around 30%.

The dual benefits of higher efficiency and longer life stem from an optimised working mechanism. Ordered bits exhibit an exposure height approximately double that of random bits, meaning more diamond grits are exposed on the cutting surface and actively engaged. At the same time, the matrix wear pattern in ordered bits favours a controlled self‑sharpening behaviour—diamond surfaces display manageable micro‑fracturing rather than extreme wear. Individual grits experience uniform loads, with no segregation among particles, resulting in significantly improved drilling stability and efficiency.

Achieving ordered diamond placement relies on advanced manufacturing processes. Several methods have been developed in the industry, including vacuum‑based techniques, adhesive‑based placement, multi‑station vacuum suction, and coated‑ball methods. Among these, the dot‑paste method can control positioning accuracy to within a deviation of no more than 10% from the designed coordinates.

At the product level, the production sequence for ordered diamond core drill bits generally follows these steps: diamond grits are precisely placed at predetermined coordinates using an automated placement system; the placed diamonds are then cold‑pressed together with matrix powder; finally, the compacts are hot‑pressed in a vacuum furnace to form segments with diamonds in an ordered array. The segments are then securely attached to the drill bit body via laser welding. Laser welding provides sufficient bond strength to withstand the concentrated loads that ordered segments may encounter when drilling through densely reinforced concrete.

The performance advantages of ordered diamond core drill bits are evident across a wide range of working conditions. In heavily reinforced concrete drilling, the uniformly distributed load profile enables the bit to effectively handle impacts from dense rebar. In high‑strength concrete and abrasive aggregates, consistent diamond exposure ensures stable drilling speeds. For dry hand‑held operations in masonry, brick, and lightweight blocks, the combination of ordered placement and laser welding delivers safe and efficient drilling performance.

From a broader perspective, the value of ordered‑arrangement technology extends beyond the performance of a single bit. Because every diamond is fully utilised, ordered bits can achieve comparable drilling results with lower diamond concentration. This means that while product performance is improved, raw material costs can also be effectively managed.

Currently, ordered‑arrangement diamond tools have become a technological benchmark in the international professional diamond tool market. As infrastructure sectors such as construction, transportation, and energy continue to demand higher drilling efficiency and quality, the market potential for ordered diamond core drill bits is steadily expanding.