Views: 0 Author: Site Editor Publish Time: 2026-04-21 Origin: Site
In modern urban infrastructure, cross-sea bridges, and deep foundation construction, rotary drilling rigs dominate due to their high hole-forming efficiency and adaptability. However, the efficiency of this multi-million-dollar equipment is entirely constrained by the microscopic frontline in direct contact with hard rock and soil: the rotary drilling picks.
In harsh underground environments, picks face severe abrasive wear, high-frequency impact, and dramatic temperature fluctuations. Using inferior picks not only decreases penetration rates but also induces high-frequency vibrations, increasing the risk of equipment fatigue. More fatally, the rapid wear and frequent replacement of inferior picks trigger a destructive "economic domino effect":
Costly Unplanned Downtime: Tripping the drill to replace teeth means massive machinery and the entire crew are
forced into paid idleness, with exorbitant hourly downtime costs.
Massive Borehole Collapse Risk: Frequent downtime disrupts the mud pressure balance, easily causing severe
borehole collapse in complex strata and potentially scrapping the entire pile foundation.
Schedule Delays and Penalties: Any delay in drilling severely compresses subsequent pouring windows, utterly
destroying the contractor's profit margins.
Therefore, procuring top-quality picks is no longer merely buying consumables; it is a core "project risk management" strategy.
Faced with abnormal tooth wear, the traditional manufacturing industry typically uses hardfacing or thermal spraying to add a protective layer. However, these processes have deep-seated metallurgical defects: they often form only physical mechanical bonds, which easily delaminate or spall under high-frequency rotary vibrations.
As Dr. Liu Dejian, founder of Hengpu Laser, metaphorically described, traditional hardfacing is essentially like putting a "wig" on the pick, which easily falls off in extreme cutting storms.
It is precisely under these industry pain points that Hengpu (Ningbo) Laser Technology Co., Ltd. emerged. As a leader in China's civil 3D printing sector, relying on its R&D strength centered around a US-returned PhD team, Hengpu successfully industrialized "Laser Melt Injection" technology, completely shattering the monopoly of international giants like Kennametal and Sandvik in high-end engineering cutting tools.
The secret to the invincibility of Hengpu picks lies deeply within its proprietary "FREEFORM" ceramic 3D printing core technology system.
Unlike traditional surface adhesion, Hengpu utilizes high-power laser beams to induce a liquid metal melt pool on a standard alloy steel matrix, synchronously and precisely "implanting" special ceramic composite powder into the pool. This is akin to a "hair transplant" surgery in manufacturing. Ceramic particles act as "hair roots" anchored deeply within the metal, retaining the steel's impact toughness internally while showcasing the extreme wear resistance of ceramics externally.
This process gives birth to Functionally Graded Materials (FGM). The continuous gradient transition between metal and ceramic thoroughly eliminates cliff-like physical boundaries, achieving atomic-level metallurgical bonding. More importantly, Hengpu successfully broke through the traditional limit of <10% ceramic content, endowing the tools with unprecedented ultra-high hardness.
Key Metrics | Traditional Premium Picks | Hengpu Ceramic 3D Printed Picks | Analysis of Advantages |
Wear Layer Hardness | Max HRC 52-60 | HRC 68-70 | Locks out the risk of early tip loss, providing enduring support. |
Bonding Method | Mechanical, prone to spalling | Atomic-level bonded gradient material | Physically eradicates the risk of coating delamination under strong impacts. |
Comprehensive Lifespan | Industry standard | Lifespan increased by >100%, up to 10x in certain conditions | Drastically slashes tripping frequency, eliminating costly unplanned downtime. |
Economic Efficiency | High cost relying on rare alloys | High ROI by placing ceramics only at critical zones | Significantly reduces machinery leasing and labor idle costs, expanding profit margins. |
On the deep underground cutting battlefield, the physical quality of a small pick is the core lifeline that guarantees tight schedules, maintains engineering quality, and defends enterprise profits.
Hengpu Laser's ceramic 3D printed picks, through innovative gradient material processes, perfectly integrate "extreme ceramic hardness" and "outstanding metal toughness." It not only cross-generationally boosts the rock-breaking efficiency of rotary drilling rigs but also responds to the call for green, low-carbon construction with its multiplied lifespan. Choosing Hengpu picks means choosing world-leading additive manufacturing technology to conquer stubborn rock formations, truly placing the "core teeth" of construction machinery in the hands of Chinese intelligent manufacturing.
