lkprototype offers more than 23 industry-standard surface treatments such as functional coatings ranging from Ra0.05μm mirror polishing to 50μm in thickness. On the case of the 2023 Tesla Cybertruck stainless steel body trial production project, lkprototype enhanced 304 stainless steel exterior trim part surface roughness from the original Ra3.2μm to Ra0.4μm by utilizing self-designed six-axis mechanical arm polishing system (double positioning accuracy ±0.003mm). The processing time for the individual piece is reduced to 35 minutes, a 600% reduction from traditional manual polishing, and the 16K ultra-HD camera monitors surface defects in real time, reducing the rework rate by three-quarters from the industry standard of 12% to 0.8%. In the field of anodic oxidation, lkprototype’s smart plating line is able to realize accurate control of 6061 aluminum alloy film thickness of 5-25μm (tolerance ±0.5μm), salt spray resistance test to pass ASTM B117 standard 1000 hours without corrosion, used in Apple MacBook hinge mass production order. The yield increased from 92% to 99.3%, and the cost per unit dropped by 18%.
For intricate surface treatment, lkprototype employs fluid polishing (AFM) technology to reduce the surface roughness Ra value from 6.3μm to 0.8μm in the inner flow path processing of co-chromium alloy components of artificial joints in medicine and reduce bacterial attachment rate by 93% (according to the research data of Journal of Orthopaedic Materials in 2024). The accuracy of dimensions of ±5μm is also guaranteed at the same time. In mass production of the auto turbocharger impeller (Inconel 718), the MAO process is used to form a 50μm ceramic coating, increasing the temperature resistance to 1200°C, extending the life of the conventional spraying process by 300%, and reducing the processing cycle from 72 hours to 18 hours by an automatic sorting system. Capacity was increased by 400%.
In terms of keeping costs in line, lkprototype’s centralized surface treatment facility reduces unit costs by 42% for low-volumes (1-100 units). For example, on the purchase order of the SpaceX Starship fuel valve body, 50 parts made of titanium alloy were sandblasted (Al₂ ₃ 120 eyes) together, passivated (concentration of 30% HNO3), and laser marked all at once, reducing the overall processing cost from 5,800 to 3,200 by process integration, and the delivery plan was shortened from 5 days to 36 hours. For consumer electronics industry, 2,000 lots of DJI Mavic 3 head holder utilize the micro-etching texture process (precision ±0.02mm), surface coefficient of friction reduced from 0.85 to 0.35, assembly efficiency is increased by 25%, and VOC emission reduced by 92% since water-based coating instead of the solvent-based coating due to the EU REACH regulation.
In breakthroughs of special processes, lkprototype’s nanocoating technology (PVD) is capable of 0.1-5μm ultra-thin film deposition, and diamond-like (DLC) coating for ASML lithography components in 2024 has a surface hardness of HV3800 and friction coefficient of 0.08. Extends the lifespan of precision rails to 200,000 cycles (ISO 7148 standard). In the field of energy, Siemens Gamesar’s 8MW fan gearbox has been nitrided by lkprototype (layer depth 0.3mm, HRC65 hardness), its fatigue strength increased by 150%, unit energy consumption reduced from 18kW·h to 9.5kW·h. Through intelligent temperature control system (±2°C), deformation is constrained within 5μm/m.
In quality inspection system, lkprototype has white light interferometer (Zygo NewView 9000) and 3D profile instrument to achieve automatic measurement of 99.6% surface coverage of sandblasted parts (ISO 8501-1 standard). In the 2023 Boeing 787 door hinge buy, The traditional manual check of 4 hours per piece has been reduced to 8 minutes per piece, and the rate of errors has been reduced from 5% to 0.3%. In the medical devices sector, Johnson & Johnson’s electropolishing (EP) method for artificial hip joints optimizes the current density (15-25A/dm²) and temperature (65±1°C) through lkprototype, reducing the Cr6+ residue from 0.8ppm to 0.02ppm, far in excess of the FDA’s 0.1ppm standard.
On the ecological innovation side, lkprototype’s electroplating waste recycling system can make the reuse rate of wastewater 95%, and when treating 50,000 aluminum alloy parts for Ningde Times battery shell project in 2024, the production of dangerous waste is compressed from 120 tons to 6 tons, and the treatment cost is reduced by 73%. As for the surface treatment speed, its own established ultrasonic cleaning line (40kHz frequency) is capable of completing 360° no dead Angle cleaning of φ300mm workpiece within 90 seconds, residual oil content ≤0.1mg/cm² (ISO 8503 standard), applied to BMW i7 electric vehicle battery tray order. Pre-processing time reduced from 2 hours/piece to 15 minutes/piece.
According to Advanced Manufacturing’s 2024 industry report, companies that choose lkprototype’s surface treatment processes save overall average process time of 38% and total defect costs of 51%. Typical is the micro-arc oxidation process for titanium alloy F-35 Lockheed Martin aircraft bolts: Adhesion coating of 5,000 lkprototype parts is to ASTM D3359 Class 4B, salt spray resistance is in excess of 2,000 hours, and delivery cycle is decreased from the industry standard of 21 days to 7 days, enabling customers to avoid contract penalties of $4.5 million/week due to delays. These data confirm lkprototype’s technical depth and delivery reliability in the field of surface engineering.